// ==WindhawkMod==
// @id              taskbar-clock-customization
// @name            Taskbar Clock Customization
// @description     Custom date/time format, news feed, weather, performance metrics (upload/download speed, CPU, RAM), custom fonts and colors, and more
// @version         1.6.3
// @author          m417z
// @github          https://github.com/m417z
// @twitter         https://twitter.com/m417z
// @homepage        https://m417z.com/
// @include         explorer.exe
// @architecture    x86-64
// @compilerOptions -lole32 -loleaut32 -lpdh -lruntimeobject -lshlwapi -lversion -lwininet
// ==/WindhawkMod==

// Source code is published under The GNU General Public License v3.0.
//
// For bug reports and feature requests, please open an issue here:
// https://github.com/ramensoftware/windhawk-mods/issues
//
// For pull requests, development takes place here:
// https://github.com/m417z/my-windhawk-mods

// ==WindhawkModReadme==
/*
# Taskbar Clock Customization

Custom date/time format, news feed, weather, performance metrics
(upload/download speed, CPU, RAM), custom fonts and colors, and more.

Only Windows 10 64-bit and Windows 11 are supported.

**Note:** To customize the old taskbar on Windows 11 (if using ExplorerPatcher
or a similar tool), enable the relevant option in the mod's settings.

![News screenshot](https://i.imgur.com/p03o9l7.png) \
_News (default mod settings)_

![Weather screenshot](https://i.imgur.com/Re7mQd6.png) \
_Weather_

![System performance metrics screenshot](https://i.imgur.com/QhyYv0D.png) \
_System performance metrics_

## Available patterns

Supported fields - top line, bottom line, middle line (Windows 10 only), tooltip
extra line - can be configured with text that contains patterns. The following
patterns can be used:

* `%time%` - the time as configured by the time format in settings.
  * `%time<n>%` - additional time formats which can be specified by separating
    the time format string with `;`. `<n>` is the additional time format number,
    starting with 2.
  * `%time_tz<n>%` - the time with a custom time zone. `<n>` is the time zone
    number in the list of time zones configured in settings.
* `%date%` - the date as configured by the date format in settings.
  * `%date<n>%` - additional date formats which can be specified by separating
    the date format string with `;`. `<n>` is the additional date format number,
    starting with 2.
  * `%date_tz<n>%` - the date with a custom time zone. `<n>` is the time zone
    number in the list of time zones configured in settings.
* `%weekday%` - the week day as configured in settings.
  * `%weekday_tz<n>%` - the week day with a custom time zone. `<n>` is the time
    zone number in the list of time zones configured in settings.
* `%weekday_num%` - the week day number according to the [first day of
   week](https://superuser.com/q/61002) system configuration. For example, if
   first day of week is Sunday, then the week day number is 1 for Sunday, 2 for
   Monday, ..., 7 for Saturday.
* `%weeknum%` - the week number, calculated as following: The week containing 1
  January is defined as week 1 of the year. Subsequent weeks start on first day
  of week according to the system configuration.
* `%weeknum_iso%` - the [ISO week
  number](https://en.wikipedia.org/wiki/ISO_week_date).
* `%dayofyear%` - the day of year starting from January 1st.
* `%timezone%` - the time zone in ISO 8601 format.
* System performance metrics:
  * `%upload_speed%` - system-wide upload transfer rate.
  * `%download_speed%` - system-wide download transfer rate.
  * `%cpu%` - CPU usage.
  * `%ram%` - RAM usage.
* `%weather%` - Weather information, powered by [wttr.in](https://wttr.in/),
  using the location and format configured in settings.
* `%web<n>%` - the web contents as configured in settings, truncated with
  ellipsis, where `<n>` is the web contents number.
* `%web<n>_full%` - the full web contents as configured in settings, where `<n>`
  is the web contents number.
* `%newline%` - a newline.

## Text styles

For Windows 11 version 22H2 and newer, the mod allows to change the clock text
styles, such as the font color and size.

![Screenshot](https://i.imgur.com/3JiXwjT.png)
*/
// ==/WindhawkModReadme==

// ==WindhawkModSettings==
/*
- ShowSeconds: true
  $name: Show seconds
- TimeFormat: >-
    hh':'mm':'ss tt
  $name: Time format
  $description: >-
    Leave empty for the default format. For syntax refer to the following page:

    https://docs.microsoft.com/en-us/windows/win32/api/datetimeapi/nf-datetimeapi-gettimeformatex#remarks
- DateFormat: >-
    ddd',' MMM dd yyyy
  $name: Date format
  $description: >-
    Leave empty for the default format. For syntax refer to the following page:

    https://docs.microsoft.com/en-us/windows/win32/intl/day--month--year--and-era-format-pictures
- WeekdayFormat: dddd
  $name: Week day format
  $options:
  - dddd: Full day of the week
  - ddd: Abbreviated day of the week
  - custom: Custom, specified below
- WeekdayFormatCustom: Sun, Mon, Tue, Wed, Thu, Fri, Sat
  $name: Custom week day format
  $description: >-
    A comma-separated list of custom week days, Sunday through Saturday. Used if
    the custom format is specified for the week day format.
- TopLine: '%date% | %time%'
  $name: Top line
  $description: >-
    Text to be shown on the first line. Set to "-" for the default value. Refer
    to the mod details for list of patterns that can be used.
- BottomLine: '%web1%'
  $name: Bottom line
  $description: >-
    Only shown if the taskbar is large enough. Set to "-" for the default value.
- MiddleLine: '%weekday%'
  $name: Middle line (Windows 10 only)
  $description: >-
    Only shown if the taskbar is large enough. Set to "-" for the default value.
- TooltipLine: '%web1_full%'
  $name: Tooltip extra line
- Width: 180
  $name: Clock width (Windows 10 only)
- Height: 60
  $name: Clock height (Windows 10 only)
- MaxWidth: 0
  $name: Clock max width (Windows 11 only)
  $description: Set to zero to have no max width.
- TextSpacing: 0
  $name: Line spacing
  $description: >-
    Set to zero for the default system value. A negative value can be used for
    negative spacing.
- DataCollection:
  - NetworkMetricsFormat: mbs
    $name: Network metrics format
    $description: >-
      The format to use for displaying the upload/download transfer rate.
    $options:
    - mbs: MB/s
    - mbsNumberOnly: MB/s, number only
    - mbsDynamic: MB/s or KB/s (dynamic)
    - mbits: MBit/s
    - mbitsNumberOnly: MBit/s, number only
    - mbitsDynamic: MBit/s or KBit/s (dynamic)
  - NetworkMetricsFixedDecimals: -1
    $name: Network metrics fixed decimal places
    $description: >-
      Always use this amount of decimal places for the upload/download transfer
      rate (-1 means auto/same width).
  - PercentageFormat: spacePaddingAndSymbol
    $name: Percentage format
    $description: >-
      The format to use for displaying the CPU/RAM usage percentage.
    $options:
    - spacePaddingAndSymbol: Pad with spaces, add percentage symbol
    - spacePadding: Pad with spaces, number only
    - zeroPadding: Pad with zeros, number only
    - noPadding: No padding, number only
  - UpdateInterval: 1
    $name: Update interval
    $description: >-
      The update interval, in seconds, of the system performance metrics.
  $name: System performance metrics
  $description: >-
    Settings for system performance metrics: upload/download transfer rate and
    CPU/RAM usage.
- WebContentWeatherLocation: ""
  $name: Weather location
  $description: >-
    Get weather information for a specific location. Keep empty to use the
    current location. For details, refer to the documentation of wttr.in.
- WebContentWeatherFormat: "%c \uD83C\uDF21\uFE0F%t \uD83C\uDF2C\uFE0F%w"
  $name: Weather format
  $description: >-
    The weather information format. For details, refer to the documentation of
    wttr.in.
- WebContentWeatherUnits: autoDetect
  $name: Weather units
  $description: >-
    The weather units. For details, refer to the documentation of wttr.in.
  $options:
  - autoDetect: Auto (default)
  - uscs: USCS (used by default in US)
  - metric: Metric (SI) (used by default everywhere except US)
  - metricMsWind: Metric (SI), but show wind speed in m/s
- WebContentsItems:
  - - Url: https://rss.nytimes.com/services/xml/rss/nyt/World.xml
      $name: Web content URL
    - BlockStart: '<item>'
      $name: Web content block start
      $description: The string in the webpage to start from.
    - Start: '<title>'
      $name: Web content start
      $description: The string just before the content.
    - End: '</title>'
      $name: Web content end
      $description: The string just after the content.
    - ContentMode: xmlHtml
      $name: Content mode
      $description: >-
        The plain text mode leaves the content unchanged. Tags or entities such
        as "&amp;" can be stripped/decoded with the respective modes. The XML
        mode requires the content to be well-formed XML. The XML+HTML mode can
        be useful for RSS feeds.
      $options:
      - "": Plain text
      - html: HTML
      - xml: XML
      - xmlHtml: XML+HTML
    - SearchReplace:
      - - Search: ""
        - Replace: ""
      $name: Content search/replace
      $description: >-
        Regular expression-based search and replace operations applied to the
        extracted content.
    - MaxLength: 28
      $name: Web content maximum length
      $description: Longer strings will be truncated with ellipsis.
  $name: Web content items
  $description: >-
    Will be used to fetch data displayed in place of the %web<n>% and
    %web<n>_full% patterns, where <n> is the web contents number.
- WebContentsUpdateInterval: 10
  $name: Web content update interval
  $description: >-
    The update interval, in minutes, of the weather and the web content items.
- TimeZones: ["Eastern Standard Time"]
  $name: Time zones
  $description: >-
    The list of time zones for patterns such as %time_tz1%. For a full list of
    supported time zones, use the following PowerShell command: Get-TimeZone
    -ListAvailable.
- TimeStyle:
  - Hidden: false
  - TextColor: ""
    $name: Text color
    $description: >-
      Can be a color name (Red, Black, ...) or an RGB/ARGB color code (like
      #00FF00, #CC00FF00, ...).
  - TextAlignment: ""
    $name: Text alignment
    $options:
    - "": Default
    - Right: Right
    - Center: Center
    - Left: Left
  - FontSize: 0
    $name: Font size
    $description: Set to zero for the default size.
  - FontFamily: ""
    $name: Font family
    $description: >-
      For a list of fonts that are shipped with Windows 11, refer to the
      following page:

      https://learn.microsoft.com/en-us/typography/fonts/windows_11_font_list
  - FontWeight: ""
    $name: Font weight
    $options:
    - "": Default
    - Thin: Thin
    - ExtraLight: Extra light
    - Light: Light
    - SemiLight: Semi light
    - Normal: Normal
    - Medium: Medium
    - SemiBold: Semi bold
    - Bold: Bold
    - ExtraBold: Extra bold
    - Black: Black
    - ExtraBlack: Extra black
  - FontStyle: ""
    $name: Font style
    $options:
    - "": Default
    - Normal: Normal
    - Oblique: Oblique
    - Italic: Italic
  - FontStretch: ""
    $name: Font stretch
    $description: Only supported for some fonts.
    $options:
    - "": Default
    - Undefined: Undefined
    - UltraCondensed: Ultra condensed
    - ExtraCondensed: Extra condensed
    - Condensed: Condensed
    - SemiCondensed: Semi condensed
    - Normal: Normal
    - SemiExpanded: Semi expanded
    - Expanded: Expanded
    - ExtraExpanded: Extra expanded
    - UltraExpanded: Ultra expanded
  - CharacterSpacing: 0
    $name: Character spacing
    $description: Can be a positive or a negative number.
  $name: Top line style (Windows 11 version 22H2 and newer)
- DateStyle:
  - Hidden: false
  - TextColor: ""
    $name: Text color
    $description: >-
      Can be a color name (Red, Black, ...) or an RGB/ARGB color code (like
      #00FF00, #CC00FF00, ...).
  - TextAlignment: ""
    $name: Text alignment
    $options:
    - "": Default
    - Right: Right
    - Center: Center
    - Left: Left
  - FontSize: 0
    $name: Font size
    $description: Set to zero for the default size.
  - FontFamily: ""
    $name: Font family
    $description: >-
      For a list of fonts that are shipped with Windows 11, refer to the
      following page:

      https://learn.microsoft.com/en-us/typography/fonts/windows_11_font_list
  - FontWeight: ""
    $name: Font weight
    $options:
    - "": Default
    - Thin: Thin
    - ExtraLight: Extra light
    - Light: Light
    - SemiLight: Semi light
    - Normal: Normal
    - Medium: Medium
    - SemiBold: Semi bold
    - Bold: Bold
    - ExtraBold: Extra bold
    - Black: Black
    - ExtraBlack: Extra black
  - FontStyle: ""
    $name: Font style
    $options:
    - "": Default
    - Normal: Normal
    - Oblique: Oblique
    - Italic: Italic
  - FontStretch: ""
    $name: Font stretch
    $description: Only supported for some fonts.
    $options:
    - "": Default
    - Undefined: Undefined
    - UltraCondensed: Ultra condensed
    - ExtraCondensed: Extra condensed
    - Condensed: Condensed
    - SemiCondensed: Semi condensed
    - Normal: Normal
    - SemiExpanded: Semi expanded
    - Expanded: Expanded
    - ExtraExpanded: Extra expanded
    - UltraExpanded: Ultra expanded
  - CharacterSpacing: 0
    $name: Character spacing
    $description: Can be a positive or a negative number.
  $name: Bottom line style (Windows 11 version 22H2 and newer)
- oldTaskbarOnWin11: false
  $name: Customize the old taskbar on Windows 11
  $description: >-
    Enable this option to customize the old taskbar on Windows 11 (if using
    ExplorerPatcher or a similar tool).
*/
// ==/WindhawkModSettings==

#include <windhawk_utils.h>

using WindhawkUtils::StringSetting;

#include <atomic>
#include <functional>
#include <mutex>
#include <optional>
#include <regex>
#include <string>
#include <string_view>
#include <vector>

using namespace std::string_view_literals;

#include <initguid.h>  // Must come before mshtml.h

#include <comutil.h>
#include <mshtml.h>
#include <pdh.h>
#include <pdhmsg.h>
#include <psapi.h>
#include <shlwapi.h>
#include <wininet.h>

#undef GetCurrentTime

#include <winrt/Windows.Data.Xml.Dom.h>
#include <winrt/Windows.Foundation.Collections.h>
#include <winrt/Windows.UI.Xaml.Controls.h>
#include <winrt/Windows.UI.Xaml.Interop.h>
#include <winrt/Windows.UI.Xaml.Markup.h>
#include <winrt/Windows.UI.Xaml.Media.h>
#include <winrt/base.h>

using namespace winrt::Windows::UI::Xaml;

// For Windhawk 1.4 and earlier compatibility.
#ifndef URL_ESCAPE_ASCII_URI_COMPONENT
#define URL_ESCAPE_ASCII_URI_COMPONENT 0x00080000
#endif

enum class NetworkMetricsFormat {
    mbs,
    mbsNumberOnly,
    mbsDynamic,
    mbits,
    mbitsNumberOnly,
    mbitsDynamic,
};

enum class PercentageFormat {
    spacePaddingAndSymbol,
    spacePadding,
    zeroPadding,
    noPadding,
};

struct DataCollectionSettings {
    NetworkMetricsFormat networkMetricsFormat;
    int networkMetricsFixedDecimals;
    PercentageFormat percentageFormat;
    int updateInterval;
};

enum class WebContentWeatherUnits {
    autoDetect,
    uscs,
    metric,
    metricMsWind,
};

enum class ContentMode {
    plainText,
    html,
    xml,
    xmlHtml,
};

struct WebContentsSettings {
    StringSetting url;
    StringSetting blockStart;
    StringSetting start;
    StringSetting end;
    ContentMode contentMode;
    std::vector<std::pair<std::wregex, std::wstring>> searchReplace;
    int maxLength;
};

struct TextStyleSettings {
    bool hidden;
    StringSetting textColor;
    StringSetting textAlignment;
    int fontSize;
    StringSetting fontFamily;
    StringSetting fontWeight;
    StringSetting fontStyle;
    StringSetting fontStretch;
    int characterSpacing;
};

struct {
    bool showSeconds;
    StringSetting timeFormat;
    StringSetting dateFormat;
    StringSetting weekdayFormat;
    std::vector<std::wstring> weekdayFormatCustom;
    StringSetting topLine;
    StringSetting bottomLine;
    StringSetting middleLine;
    StringSetting tooltipLine;
    int width;
    int height;
    int maxWidth;
    int textSpacing;
    DataCollectionSettings dataCollection;
    StringSetting webContentWeatherLocation;
    StringSetting webContentWeatherFormat;
    WebContentWeatherUnits webContentWeatherUnits;
    std::vector<WebContentsSettings> webContentsItems;
    int webContentsUpdateInterval;
    std::vector<StringSetting> timeZones;
    TextStyleSettings timeStyle;
    TextStyleSettings dateStyle;
    bool oldTaskbarOnWin11;

    // Kept for compatibility with old settings:
    StringSetting webContentsUrl;
    StringSetting webContentsBlockStart;
    StringSetting webContentsStart;
    StringSetting webContentsEnd;
    int webContentsMaxLength;
} g_settings;

#define FORMATTED_BUFFER_SIZE 256
#define INTEGER_BUFFER_SIZE sizeof("-2147483648")

enum class WinVersion {
    Unsupported,
    Win10,
    Win11,
    Win11_22H2,
    Win11_24H2,
};

WinVersion g_winVersion;

std::atomic<bool> g_taskbarViewDllLoaded;
std::atomic<bool> g_initialized;
std::atomic<bool> g_explorerPatcherInitialized;

DWORD g_formatIndex;
SYSTEMTIME g_formatTime;

template <size_t N>
struct FormattedString {
    DWORD formatIndex;
    WCHAR buffer[N];
};

FormattedString<FORMATTED_BUFFER_SIZE> g_timeFormatted;
std::vector<std::wstring> g_timeFormattedExtra;
std::vector<FormattedString<FORMATTED_BUFFER_SIZE>> g_timeFormattedTz;
FormattedString<FORMATTED_BUFFER_SIZE> g_dateFormatted;
std::vector<std::wstring> g_dateFormattedExtra;
std::vector<FormattedString<FORMATTED_BUFFER_SIZE>> g_dateFormattedTz;
FormattedString<FORMATTED_BUFFER_SIZE> g_weekdayFormatted;
std::vector<FormattedString<FORMATTED_BUFFER_SIZE>> g_weekdayFormattedTz;
FormattedString<INTEGER_BUFFER_SIZE> g_weekdayNumFormatted;
FormattedString<INTEGER_BUFFER_SIZE> g_weeknumFormatted;
FormattedString<INTEGER_BUFFER_SIZE> g_weeknumIsoFormatted;
FormattedString<INTEGER_BUFFER_SIZE> g_dayOfYearFormatted;
FormattedString<FORMATTED_BUFFER_SIZE> g_timezoneFormatted;

FormattedString<FORMATTED_BUFFER_SIZE> g_uploadSpeedFormatted;
FormattedString<FORMATTED_BUFFER_SIZE> g_downloadSpeedFormatted;
FormattedString<FORMATTED_BUFFER_SIZE> g_cpuFormatted;
FormattedString<FORMATTED_BUFFER_SIZE> g_ramFormatted;

std::vector<std::optional<DYNAMIC_TIME_ZONE_INFORMATION>> g_timeZoneInformation;

HANDLE g_webContentUpdateThread;
HANDLE g_webContentUpdateRefreshEvent;
HANDLE g_webContentUpdateStopEvent;
std::mutex g_webContentMutex;
std::atomic<bool> g_webContentLoaded;

std::vector<std::optional<std::wstring>> g_webContentStrings;
std::vector<std::optional<std::wstring>> g_webContentStringsFull;
std::optional<std::wstring> g_webContentWeather;

// Kept for compatibility with old settings:
WCHAR g_webContent[FORMATTED_BUFFER_SIZE];
WCHAR g_webContentFull[FORMATTED_BUFFER_SIZE];

struct ClockElementStyleData {
    winrt::weak_ref<FrameworkElement> dateTimeIconContentElement;
    DWORD styleIndex;
    std::optional<int64_t> dateVisibilityPropertyChangedToken;
    std::optional<int64_t> timeVisibilityPropertyChangedToken;
};

std::atomic<bool> g_clockElementStyleEnabled;
std::atomic<DWORD> g_clockElementStyleIndex;
std::vector<ClockElementStyleData> g_clockElementStyleData;

using GetDpiForWindow_t = UINT(WINAPI*)(HWND hwnd);
GetDpiForWindow_t pGetDpiForWindow;

using SystemTimeToTzSpecificLocalTimeEx_t =
    BOOL(WINAPI*)(const DYNAMIC_TIME_ZONE_INFORMATION* lpTimeZoneInformation,
                  const SYSTEMTIME* lpUniversalTime,
                  LPSYSTEMTIME lpLocalTime);
SystemTimeToTzSpecificLocalTimeEx_t pSystemTimeToTzSpecificLocalTimeEx;

using EnumDynamicTimeZoneInformation_t =
    DWORD(WINAPI*)(const DWORD dwIndex,
                   PDYNAMIC_TIME_ZONE_INFORMATION lpTimeZoneInformation);
EnumDynamicTimeZoneInformation_t pEnumDynamicTimeZoneInformation;

using GetLocalTime_t = decltype(&GetLocalTime);
GetLocalTime_t GetLocalTime_Original;

using GetTimeFormatEx_t = decltype(&GetTimeFormatEx);
GetTimeFormatEx_t GetTimeFormatEx_Original;

using GetDateFormatEx_t = decltype(&GetDateFormatEx);
GetDateFormatEx_t GetDateFormatEx_Original;

using GetDateFormatW_t = decltype(&GetDateFormatW);
GetDateFormatW_t GetDateFormatW_Original;

using SendMessageW_t = decltype(&SendMessageW);
SendMessageW_t SendMessageW_Original;

std::optional<std::wstring> GetUrlContent(PCWSTR lpUrl,
                                          bool failIfNot200 = true) {
    HINTERNET hOpenHandle = InternetOpen(
        L"WindhawkMod", INTERNET_OPEN_TYPE_PRECONFIG, nullptr, nullptr, 0);
    if (!hOpenHandle) {
        return std::nullopt;
    }

    HINTERNET hUrlHandle =
        InternetOpenUrl(hOpenHandle, lpUrl, nullptr, 0,
                        INTERNET_FLAG_NO_AUTH | INTERNET_FLAG_NO_CACHE_WRITE |
                            INTERNET_FLAG_NO_COOKIES | INTERNET_FLAG_NO_UI |
                            INTERNET_FLAG_PRAGMA_NOCACHE | INTERNET_FLAG_RELOAD,
                        0);
    if (!hUrlHandle) {
        InternetCloseHandle(hOpenHandle);
        return std::nullopt;
    }

    if (failIfNot200) {
        DWORD dwStatusCode = 0;
        DWORD dwStatusCodeSize = sizeof(dwStatusCode);
        if (!HttpQueryInfo(hUrlHandle,
                           HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER,
                           &dwStatusCode, &dwStatusCodeSize, nullptr) ||
            dwStatusCode != 200) {
            InternetCloseHandle(hUrlHandle);
            InternetCloseHandle(hOpenHandle);
            return std::nullopt;
        }
    }

    LPBYTE pUrlContent = (LPBYTE)HeapAlloc(GetProcessHeap(), 0, 0x400);
    if (!pUrlContent) {
        InternetCloseHandle(hUrlHandle);
        InternetCloseHandle(hOpenHandle);
        return std::nullopt;
    }

    DWORD dwNumberOfBytesRead;
    InternetReadFile(hUrlHandle, pUrlContent, 0x400, &dwNumberOfBytesRead);
    DWORD dwLength = dwNumberOfBytesRead;

    while (dwNumberOfBytesRead) {
        LPBYTE pNewUrlContent = (LPBYTE)HeapReAlloc(
            GetProcessHeap(), 0, pUrlContent, dwLength + 0x400);
        if (!pNewUrlContent) {
            InternetCloseHandle(hUrlHandle);
            InternetCloseHandle(hOpenHandle);
            HeapFree(GetProcessHeap(), 0, pUrlContent);
            return std::nullopt;
        }

        pUrlContent = pNewUrlContent;
        InternetReadFile(hUrlHandle, pUrlContent + dwLength, 0x400,
                         &dwNumberOfBytesRead);
        dwLength += dwNumberOfBytesRead;
    }

    InternetCloseHandle(hUrlHandle);
    InternetCloseHandle(hOpenHandle);

    // Assume UTF-8.
    int charsNeeded = MultiByteToWideChar(CP_UTF8, 0, (PCSTR)pUrlContent,
                                          dwLength, nullptr, 0);
    std::wstring unicodeContent(charsNeeded, L'\0');
    MultiByteToWideChar(CP_UTF8, 0, (PCSTR)pUrlContent, dwLength,
                        unicodeContent.data(), unicodeContent.size());

    HeapFree(GetProcessHeap(), 0, pUrlContent);

    return unicodeContent;
}

// https://stackoverflow.com/a/29752943
std::wstring ReplaceAll(std::wstring_view source,
                        std::wstring_view from,
                        std::wstring_view to) {
    std::wstring newString;

    size_t lastPos = 0;
    size_t findPos;

    while ((findPos = source.find(from, lastPos)) != source.npos) {
        newString.append(source, lastPos, findPos - lastPos);
        newString += to;
        lastPos = findPos + from.length();
    }

    // Care for the rest after last occurrence.
    newString += source.substr(lastPos);

    return newString;
}

// https://stackoverflow.com/a/54364173
std::wstring_view TrimStringView(std::wstring_view s) {
    s.remove_prefix(std::min(s.find_first_not_of(L" \t\r\v\n"), s.size()));
    s.remove_suffix(
        std::min(s.size() - s.find_last_not_of(L" \t\r\v\n") - 1, s.size()));
    return s;
}

// https://stackoverflow.com/a/46931770
std::vector<std::wstring_view> SplitStringView(std::wstring_view s,
                                               std::wstring_view delimiter) {
    size_t pos_start = 0, pos_end, delim_len = delimiter.length();
    std::wstring_view token;
    std::vector<std::wstring_view> res;

    while ((pos_end = s.find(delimiter, pos_start)) !=
           std::wstring_view::npos) {
        token = s.substr(pos_start, pos_end - pos_start);
        pos_start = pos_end + delim_len;
        res.push_back(token);
    }

    res.push_back(s.substr(pos_start));
    return res;
}

int StringCopyTruncated(PWSTR dest,
                        size_t destSize,
                        PCWSTR src,
                        bool* truncated) {
    if (destSize == 0) {
        *truncated = *src;
        return 0;
    }

    size_t i;
    for (i = 0; i < destSize - 1 && *src; i++) {
        *dest++ = *src++;
    }

    *dest = L'\0';
    *truncated = *src;
    return i;
}

std::wstring ExtractWebContent(std::wstring_view webContent,
                               PCWSTR webContentsBlockStart,
                               PCWSTR webContentsStart,
                               PCWSTR webContentsEnd) {
    auto block = webContent.find(webContentsBlockStart);
    if (block == webContent.npos) {
        return std::wstring();
    }

    auto start = webContent.find(webContentsStart, block);
    if (start == webContent.npos) {
        return std::wstring();
    }

    start += wcslen(webContentsStart);

    auto end = *webContentsEnd ? webContent.find(webContentsEnd, start)
                               : webContent.length();
    if (end == webContent.npos) {
        return std::wstring();
    }

    return std::wstring(webContent.substr(start, end - start));
}

std::wstring ExtractTextFromHtml(std::wstring html) {
    winrt::com_ptr<IHTMLDocument2> doc;
    winrt::check_hresult(CoCreateInstance(CLSID_HTMLDocument, nullptr,
                                          CLSCTX_INPROC_SERVER,
                                          IID_IHTMLDocument2, doc.put_void()));
    if (!doc) {
        throw std::runtime_error("HTML document creation failed");
    }

    // Prepare HTML content for processing.
    _bstr_t htmlBstr(
        SysAllocStringLen(html.data(), static_cast<UINT>(html.length())),
        /*fCopy=*/false);

    SAFEARRAY* psa = SafeArrayCreateVector(VT_VARIANT, 0, 1);
    if (!psa) {
        throw std::runtime_error("Failed to create SafeArray");
    }

    VARIANT* pva;
    HRESULT hr = SafeArrayAccessData(psa, reinterpret_cast<void**>(&pva));
    if (SUCCEEDED(hr)) {
        pva->vt = VT_BSTR;
        pva->bstrVal = htmlBstr.Detach();
        hr = SafeArrayUnaccessData(psa);
    }

    if (SUCCEEDED(hr)) {
        hr = doc->write(psa);
    }

    SafeArrayDestroy(psa);

    winrt::check_hresult(hr);

    // Extract plain text from the HTML document.
    winrt::com_ptr<IHTMLElement> body;
    winrt::check_hresult(doc->get_body(body.put()));
    if (!body) {
        return std::wstring();
    }

    _bstr_t text;
    winrt::check_hresult(body->get_innerText(text.GetAddress()));
    return std::wstring(text, text.length());
}

std::wstring ExtractTextFromXml(std::wstring xml) {
    xml = L"<root>" + xml + L"</root>";
    winrt::Windows::Data::Xml::Dom::XmlDocument xmlDoc;
    xmlDoc.LoadXml(winrt::hstring(xml));
    return std::wstring(xmlDoc.InnerText());
}

bool IsStrInDateTimePatternSettings(PCWSTR str) {
    return wcsstr(g_settings.topLine, str) ||
           wcsstr(g_settings.bottomLine, str) ||
           wcsstr(g_settings.middleLine, str) ||
           wcsstr(g_settings.tooltipLine, str);
}

std::wstring EscapeUrlComponent(PCWSTR input,
                                DWORD flags = URL_ESCAPE_ASCII_URI_COMPONENT |
                                              URL_ESCAPE_AS_UTF8) {
    WCHAR outStack[256];
    DWORD needed = ARRAYSIZE(outStack);
    HRESULT hr = UrlEscape(input, outStack, &needed, flags);
    if (SUCCEEDED(hr)) {
        return outStack;
    }

    if (hr != E_POINTER || needed < 1) {
        Wh_Log(L"UrlEscape error %08X", hr);
        return std::wstring();
    }

    std::wstring out(needed - 1, L'\0');
    hr = UrlEscape(input, &out[0], &needed, flags);
    if (FAILED(hr)) {
        Wh_Log(L"UrlEscape error %08X", hr);
        return std::wstring();
    }

    return out;
}

bool UpdateWeatherWebContent() {
    std::wstring format = g_settings.webContentWeatherFormat.get();
    if (format.empty()) {
        format = L"%c \U0001F321\uFE0F%t \U0001F32C\uFE0F%w";
    }

    // Spaces are added after the weather emoji by the server. Add a marker
    // character after it to be able to remove the spaces. See:
    // https://github.com/chubin/wttr.in/issues/345
    format = ReplaceAll(format, L"%c", L"%c\uE000");

    std::wstring weatherUrl = L"https://wttr.in/";
    weatherUrl += EscapeUrlComponent(g_settings.webContentWeatherLocation);
    weatherUrl += L'?';
    switch (g_settings.webContentWeatherUnits) {
        case WebContentWeatherUnits::autoDetect:
            break;
        case WebContentWeatherUnits::uscs:
            weatherUrl += L"u&";
            break;
        case WebContentWeatherUnits::metric:
            weatherUrl += L"m&";
            break;
        case WebContentWeatherUnits::metricMsWind:
            weatherUrl += L"M&";
            break;
    }
    weatherUrl += L"format=";
    weatherUrl += EscapeUrlComponent(format.c_str());
    std::optional<std::wstring> urlContent = GetUrlContent(weatherUrl.c_str());
    if (!urlContent) {
        return false;
    }

    // Remove spaces after the %c emoji.
    std::wstring weatherContent;

    size_t lastPos = 0;
    size_t findPos;

    while ((findPos = urlContent->find(L'\uE000', lastPos)) !=
           urlContent->npos) {
        size_t lastPosCount = findPos - lastPos;
        while (lastPosCount > 0 &&
               urlContent->at(lastPos + lastPosCount - 1) == L' ') {
            lastPosCount--;
        }

        weatherContent.append(*urlContent, lastPos, lastPosCount);
        lastPos = findPos + 1;
    }

    // Care for the rest after last occurrence.
    weatherContent += urlContent->substr(lastPos);

    std::lock_guard<std::mutex> guard(g_webContentMutex);
    g_webContentWeather = weatherContent;

    return true;
}

void UpdateWebContent() {
    int failed = 0;

    std::wstring lastUrl;
    std::optional<std::wstring> urlContent;

    // Kept for compatibility with old settings:
    if (g_settings.webContentsUrl && g_settings.webContentsBlockStart &&
        g_settings.webContentsStart && g_settings.webContentsEnd) {
        lastUrl = g_settings.webContentsUrl;
        urlContent =
            GetUrlContent(g_settings.webContentsUrl, /*failIfNot200=*/false);

        std::wstring extracted;
        if (urlContent) {
            extracted = ExtractWebContent(
                *urlContent, g_settings.webContentsBlockStart,
                g_settings.webContentsStart, g_settings.webContentsEnd);

            std::lock_guard<std::mutex> guard(g_webContentMutex);

            int maxLen = ARRAYSIZE(g_webContent) - 1;
            if (g_settings.webContentsMaxLength > 0 &&
                g_settings.webContentsMaxLength < maxLen) {
                maxLen = g_settings.webContentsMaxLength;
            }

            bool truncated;
            StringCopyTruncated(g_webContent, maxLen + 1, extracted.c_str(),
                                &truncated);
            if (truncated && maxLen >= 3) {
                g_webContent[maxLen - 1] = L'.';
                g_webContent[maxLen - 2] = L'.';
                g_webContent[maxLen - 3] = L'.';
            }

            maxLen = ARRAYSIZE(g_webContentFull) - 1;
            StringCopyTruncated(g_webContentFull, maxLen + 1, extracted.c_str(),
                                &truncated);
            if (truncated && maxLen >= 3) {
                g_webContentFull[maxLen - 1] = L'.';
                g_webContentFull[maxLen - 2] = L'.';
                g_webContentFull[maxLen - 3] = L'.';
            }
        } else {
            failed++;
        }
    }

    for (size_t i = 0; i < g_settings.webContentsItems.size(); i++) {
        WCHAR patternSubstring[32];
        swprintf_s(patternSubstring, L"%%web%i%%", i + 1);

        WCHAR patternSubstringFull[32];
        swprintf_s(patternSubstringFull, L"%%web%i_full%%", i + 1);

        if (!IsStrInDateTimePatternSettings(patternSubstring) &&
            !IsStrInDateTimePatternSettings(patternSubstringFull)) {
            continue;
        }

        const auto& item = g_settings.webContentsItems[i];

        if (item.url.get() != lastUrl) {
            lastUrl = item.url;
            urlContent = GetUrlContent(item.url, /*failIfNot200=*/false);
        }

        if (!urlContent) {
            failed++;
            continue;
        }

        std::wstring extracted = ExtractWebContent(*urlContent, item.blockStart,
                                                   item.start, item.end);

        try {
            switch (item.contentMode) {
                case ContentMode::plainText:
                    break;

                case ContentMode::html:
                    extracted = ExtractTextFromHtml(extracted);
                    break;

                case ContentMode::xml:
                    extracted = ExtractTextFromXml(extracted);
                    break;

                case ContentMode::xmlHtml:
                    extracted =
                        ExtractTextFromHtml(ExtractTextFromXml(extracted));
                    break;
            }
        } catch (const winrt::hresult_error& ex) {
            WCHAR buffer[256];
            _snwprintf_s(buffer, _TRUNCATE, L"Content error %08X: %s",
                         ex.code().value, ex.message().c_str());
            extracted = buffer;
        } catch (const std::exception& ex) {
            WCHAR buffer[256];
            _snwprintf_s(buffer, _TRUNCATE, L"Content error: %S", ex.what());
            extracted = buffer;
        }

        for (const auto& [s, r] : item.searchReplace) {
            try {
                extracted = std::regex_replace(extracted, s, r);
            } catch (const std::regex_error& ex) {
                Wh_Log(L"Search/replace error %08X: %S",
                       static_cast<DWORD>(ex.code()), ex.what());
            }
        }

        std::lock_guard<std::mutex> guard(g_webContentMutex);

        if (item.maxLength <= 0 ||
            extracted.length() <= (size_t)item.maxLength) {
            g_webContentStrings[i] = extracted;
        } else {
            std::wstring truncated(extracted.begin(),
                                   extracted.begin() + item.maxLength);
            if (truncated.length() >= 3) {
                truncated[truncated.length() - 1] = L'.';
                truncated[truncated.length() - 2] = L'.';
                truncated[truncated.length() - 3] = L'.';
            }

            g_webContentStrings[i] = std::move(truncated);
        }

        g_webContentStringsFull[i] = std::move(extracted);
    }

    if (IsStrInDateTimePatternSettings(L"%weather%") &&
        !UpdateWeatherWebContent()) {
        failed++;
    }

    if (failed == 0) {
        g_webContentLoaded = true;
    }
}

DWORD WINAPI WebContentUpdateThread(LPVOID lpThreadParameter) {
    constexpr DWORD kSecondsForQuickRetry = 30;

    HANDLE handles[] = {
        g_webContentUpdateStopEvent,
        g_webContentUpdateRefreshEvent,
    };

    while (true) {
        UpdateWebContent();

        DWORD seconds = std::max(g_settings.webContentsUpdateInterval, 1) * 60;
        if (!g_webContentLoaded && seconds > kSecondsForQuickRetry) {
            seconds = kSecondsForQuickRetry;
        }

        DWORD dwWaitResult = WaitForMultipleObjects(ARRAYSIZE(handles), handles,
                                                    FALSE, seconds * 1000);

        if (dwWaitResult == WAIT_FAILED) {
            Wh_Log(L"WAIT_FAILED");
            break;
        }

        if (dwWaitResult == WAIT_OBJECT_0) {
            break;
        }
    }

    return 0;
}

void WebContentUpdateThreadInit() {
    std::lock_guard<std::mutex> guard(g_webContentMutex);

    g_webContentStrings.resize(g_settings.webContentsItems.size());
    g_webContentStringsFull.resize(g_settings.webContentsItems.size());

    // A fuzzy check to see if any of the lines contain the web content pattern.
    // If not, no need to fire up the thread.
    if (IsStrInDateTimePatternSettings(L"%web") ||
        IsStrInDateTimePatternSettings(L"%weather%")) {
        g_webContentUpdateRefreshEvent =
            CreateEvent(nullptr, FALSE, FALSE, nullptr);
        g_webContentUpdateStopEvent =
            CreateEvent(nullptr, TRUE, FALSE, nullptr);
        g_webContentUpdateThread = CreateThread(
            nullptr, 0, WebContentUpdateThread, nullptr, 0, nullptr);
    }
}

void WebContentUpdateThreadUninit() {
    if (g_webContentUpdateThread) {
        SetEvent(g_webContentUpdateStopEvent);
        WaitForSingleObject(g_webContentUpdateThread, INFINITE);
        CloseHandle(g_webContentUpdateThread);
        g_webContentUpdateThread = nullptr;
        CloseHandle(g_webContentUpdateRefreshEvent);
        g_webContentUpdateRefreshEvent = nullptr;
        CloseHandle(g_webContentUpdateStopEvent);
        g_webContentUpdateStopEvent = nullptr;
    }

    g_webContentLoaded = false;

    *g_webContent = L'\0';
    *g_webContentFull = L'\0';

    g_webContentStrings.clear();
    g_webContentStringsFull.clear();
    g_webContentWeather.reset();
}

std::optional<DYNAMIC_TIME_ZONE_INFORMATION> GetTimeZoneInformation(
    PCWSTR timeZone) {
    if (!pEnumDynamicTimeZoneInformation) {
        return std::nullopt;
    }

    DWORD i = 0;
    DWORD dwResult;
    do {
        DYNAMIC_TIME_ZONE_INFORMATION dynamicTimezone;
        dwResult = pEnumDynamicTimeZoneInformation(i++, &dynamicTimezone);
        if (dwResult == ERROR_SUCCESS &&
            _wcsicmp(dynamicTimezone.TimeZoneKeyName, timeZone) == 0) {
            return dynamicTimezone;
        }
    } while (dwResult != ERROR_NO_MORE_ITEMS);

    return std::nullopt;
}

DWORD GetStartDayOfWeek(const SYSTEMTIME* time) {
    // https://stackoverflow.com/a/39344961
    DWORD startDayOfWeek;
    GetLocaleInfoEx(
        LOCALE_NAME_USER_DEFAULT, LOCALE_IFIRSTDAYOFWEEK | LOCALE_RETURN_NUMBER,
        (PWSTR)&startDayOfWeek, sizeof(startDayOfWeek) / sizeof(WCHAR));

    // Start from Sunday instead of Monday.
    startDayOfWeek = (startDayOfWeek + 1) % 7;

    return startDayOfWeek;
}

int CalculateWeeknum(const SYSTEMTIME* time, DWORD startDayOfWeek) {
    SYSTEMTIME secondWeek{
        .wYear = time->wYear,
        .wMonth = 1,
        .wDay = 1,
    };

    // Calculate wDayOfWeek.
    FILETIME fileTime;
    SystemTimeToFileTime(&secondWeek, &fileTime);
    FileTimeToSystemTime(&fileTime, &secondWeek);

    do {
        secondWeek.wDay++;
        secondWeek.wDayOfWeek = (secondWeek.wDayOfWeek + 1) % 7;
    } while (secondWeek.wDayOfWeek != startDayOfWeek);

    FILETIME targetFileTime;
    SystemTimeToFileTime(time, &targetFileTime);
    ULARGE_INTEGER targetFileTimeInt{
        .LowPart = targetFileTime.dwLowDateTime,
        .HighPart = targetFileTime.dwHighDateTime,
    };

    FILETIME secondWeekFileTime;
    SystemTimeToFileTime(&secondWeek, &secondWeekFileTime);
    ULARGE_INTEGER secondWeekFileTimeInt{
        .LowPart = secondWeekFileTime.dwLowDateTime,
        .HighPart = secondWeekFileTime.dwHighDateTime,
    };

    int weeknum = 1;
    if (targetFileTimeInt.QuadPart >= secondWeekFileTimeInt.QuadPart) {
        ULONGLONG diff =
            targetFileTimeInt.QuadPart - secondWeekFileTimeInt.QuadPart;
        ULONGLONG weekIn100Ns = 10000000ULL * 60 * 60 * 24 * 7;
        weeknum += 1 + diff / weekIn100Ns;
    }

    return weeknum;
}

// Adopted from VMime:
// https://github.com/kisli/vmime/blob/fc69321d5304c73be685c890f3b30528aadcfeaf/src/vmime/utility/datetimeUtils.cpp#L239
int CalculateWeeknumIso(const SYSTEMTIME* time) {
    const int year = time->wYear;
    const int month = time->wMonth;
    const int day = time->wDay;
    const bool iso = true;

    // Algorithm from http://personal.ecu.edu/mccartyr/ISOwdALG.txt

    const bool leapYear =
        ((year % 4) == 0 && (year % 100) != 0) || (year % 400) == 0;
    const bool leapYear_1 =
        (((year - 1) % 4) == 0 && ((year - 1) % 100) != 0) ||
        ((year - 1) % 400) == 0;

    // 4. Find the DayOfYearNumber for Y M D
    static const int DAY_OF_YEAR_NUMBER_MAP[12] = {
        0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};

    int DayOfYearNumber = day + DAY_OF_YEAR_NUMBER_MAP[month - 1];

    if (leapYear && month > 2) {
        DayOfYearNumber += 1;
    }

    // 5. Find the Jan1Weekday for Y (Monday=1, Sunday=7)
    const int YY = (year - 1) % 100;
    const int C = (year - 1) - YY;
    const int G = YY + YY / 4;
    const int Jan1Weekday = 1 + (((((C / 100) % 4) * 5) + G) % 7);

    // 6. Find the Weekday for Y M D
    const int H = DayOfYearNumber + (Jan1Weekday - 1);
    const int Weekday = 1 + ((H - 1) % 7);

    // 7. Find if Y M D falls in YearNumber Y-1, WeekNumber 52 or 53
    int YearNumber = 0, WeekNumber = 0;

    if (DayOfYearNumber <= (8 - Jan1Weekday) && Jan1Weekday > 4) {
        YearNumber = year - 1;

        if (Jan1Weekday == 5 || (Jan1Weekday == 6 && leapYear_1)) {
            WeekNumber = 53;
        } else {
            WeekNumber = 52;
        }

    } else {
        YearNumber = year;
    }

    // 8. Find if Y M D falls in YearNumber Y+1, WeekNumber 1
    if (YearNumber == year) {
        const int I = (leapYear ? 366 : 365);

        if ((I - DayOfYearNumber) < (4 - Weekday)) {
            YearNumber = year + 1;
            WeekNumber = 1;
        }
    }

    // 9. Find if Y M D falls in YearNumber Y, WeekNumber 1 through 53
    if (YearNumber == year) {
        const int J = DayOfYearNumber + (7 - Weekday) + (Jan1Weekday - 1);

        WeekNumber = J / 7;

        if (Jan1Weekday > 4) {
            WeekNumber -= 1;
        }
    }

    if (!iso && (WeekNumber == 1 && month == 12)) {
        WeekNumber = 53;
    }

    return WeekNumber;
}

// Adopted from VMime:
// https://github.com/kisli/vmime/blob/fc69321d5304c73be685c890f3b30528aadcfeaf/src/vmime/utility/datetimeUtils.cpp#L239
int CalculateDayOfYearNumber(const SYSTEMTIME* time) {
    const int year = time->wYear;
    const int month = time->wMonth;
    const int day = time->wDay;

    const bool leapYear =
        ((year % 4) == 0 && (year % 100) != 0) || (year % 400) == 0;

    static const int DAY_OF_YEAR_NUMBER_MAP[12] = {
        0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};

    int DayOfYearNumber = day + DAY_OF_YEAR_NUMBER_MAP[month - 1];

    if (leapYear && month > 2) {
        DayOfYearNumber += 1;
    }

    return DayOfYearNumber;
}

// Adopted from:
// https://github.com/microsoft/cpp_client_telemetry/blob/25bc0806f21ecb2587154494f073bfa581cd5089/lib/pal/desktop/WindowsEnvironmentInfo.hpp#L39
void GetTimeZone(WCHAR* buffer, size_t bufferSize) {
    long bias;

    TIME_ZONE_INFORMATION timeZone = {};
    if (GetTimeZoneInformation(&timeZone) == TIME_ZONE_ID_DAYLIGHT) {
        bias = timeZone.Bias + timeZone.DaylightBias;
    } else {
        // TODO: [MG] - ref.
        // https://docs.microsoft.com/en-us/windows/win32/api/timezoneapi/nf-timezoneapi-gettimezoneinformation
        // Need to handle the case when API return TIME_ZONE_ID_UNKNOWN.
        // Otherwise we may be reporting invalid timeZone.Bias
        bias = timeZone.Bias + timeZone.StandardBias;
    }

    auto hours = (long long)abs(bias) / 60;
    auto minutes = (long long)abs(bias) % 60;

    // UTC = local time + bias; bias sign should be interved.
    _snwprintf_s(buffer, bufferSize, _TRUNCATE, L"%c%02d:%02d",
                 bias <= 0 ? L'+' : L'-', static_cast<int>(hours),
                 static_cast<int>(minutes));
}

std::vector<std::wstring> SplitTimeFormatString(std::wstring_view s) {
    size_t posStart = 0;
    std::wstring token;
    std::vector<std::wstring> result;

    while (true) {
        size_t posEnd = s.size();
        bool inQuote = false;
        for (size_t i = posStart; i < s.size(); i++) {
            if (s[i] == L'\'') {
                inQuote = !inQuote;
                continue;
            }

            if (!inQuote && s[i] == L';') {
                posEnd = i;
                break;
            }
        }

        if (posEnd == s.size()) {
            break;
        }

        token = s.substr(posStart, posEnd - posStart);
        posStart = posEnd + 1;
        result.push_back(std::move(token));
    }

    token = s.substr(posStart);
    result.push_back(std::move(token));
    return result;
}

PCWSTR GetTimeFormattedWithExtra(std::vector<std::wstring>** extra) {
    if (g_timeFormatted.formatIndex != g_formatIndex) {
        const SYSTEMTIME* time = &g_formatTime;

        auto timeFormatParts =
            SplitTimeFormatString(g_settings.timeFormat.get());

        GetTimeFormatEx_Original(
            nullptr, g_settings.showSeconds ? 0 : TIME_NOSECONDS, time,
            !timeFormatParts[0].empty() ? timeFormatParts[0].c_str() : nullptr,
            g_timeFormatted.buffer, ARRAYSIZE(g_timeFormatted.buffer));

        g_timeFormattedExtra.resize(timeFormatParts.size() - 1);
        for (size_t i = 1; i < timeFormatParts.size(); i++) {
            WCHAR formatted[FORMATTED_BUFFER_SIZE];
            GetTimeFormatEx_Original(
                nullptr, g_settings.showSeconds ? 0 : TIME_NOSECONDS, time,
                !timeFormatParts[i].empty() ? timeFormatParts[i].c_str()
                                            : nullptr,
                formatted, ARRAYSIZE(formatted));
            g_timeFormattedExtra[i - 1] = formatted;
        }

        g_timeFormatted.formatIndex = g_formatIndex;
    }

    if (extra) {
        *extra = &g_timeFormattedExtra;
    }

    return g_timeFormatted.buffer;
}

PCWSTR GetTimeFormatted() {
    return GetTimeFormattedWithExtra(nullptr);
}

std::vector<std::wstring>* GetTimeFormattedExtra() {
    std::vector<std::wstring>* extra;
    GetTimeFormattedWithExtra(&extra);
    return extra;
}

PCWSTR GetTimeFormattedTz(size_t index) {
    if (index >= g_settings.timeZones.size()) {
        return nullptr;
    }

    auto& timeFormattedTz = g_timeFormattedTz[index];

    if (timeFormattedTz.formatIndex != g_formatIndex) {
        const auto& timeZoneInformation = g_timeZoneInformation[index];
        if (timeZoneInformation && pSystemTimeToTzSpecificLocalTimeEx) {
            SYSTEMTIME systemTime;
            TzSpecificLocalTimeToSystemTime(nullptr, &g_formatTime,
                                            &systemTime);

            SYSTEMTIME timeTz;
            pSystemTimeToTzSpecificLocalTimeEx(&*timeZoneInformation,
                                               &systemTime, &timeTz);

            const SYSTEMTIME* time = &timeTz;

            auto timeFormatParts =
                SplitTimeFormatString(g_settings.timeFormat.get());

            GetTimeFormatEx_Original(
                nullptr, g_settings.showSeconds ? 0 : TIME_NOSECONDS, time,
                !timeFormatParts[0].empty() ? timeFormatParts[0].c_str()
                                            : nullptr,
                timeFormattedTz.buffer, ARRAYSIZE(timeFormattedTz.buffer));
        } else {
            wcscpy_s(timeFormattedTz.buffer, L"-");
        }

        timeFormattedTz.formatIndex = g_formatIndex;
    }

    return timeFormattedTz.buffer;
}

PCWSTR GetDateFormattedWithExtra(std::vector<std::wstring>** extra) {
    if (g_dateFormatted.formatIndex != g_formatIndex) {
        const SYSTEMTIME* time = &g_formatTime;

        auto dateFormatParts =
            SplitTimeFormatString(g_settings.dateFormat.get());

        GetDateFormatEx_Original(
            nullptr, DATE_AUTOLAYOUT, time,
            !dateFormatParts[0].empty() ? dateFormatParts[0].c_str() : nullptr,
            g_dateFormatted.buffer, ARRAYSIZE(g_dateFormatted.buffer), nullptr);

        g_dateFormattedExtra.resize(dateFormatParts.size() - 1);
        for (size_t i = 1; i < dateFormatParts.size(); i++) {
            WCHAR formatted[FORMATTED_BUFFER_SIZE];
            GetDateFormatEx_Original(nullptr, DATE_AUTOLAYOUT, time,
                                     !dateFormatParts[i].empty()
                                         ? dateFormatParts[i].c_str()
                                         : nullptr,
                                     formatted, ARRAYSIZE(formatted), nullptr);
            g_dateFormattedExtra[i - 1] = formatted;
        }

        g_dateFormatted.formatIndex = g_formatIndex;
    }

    if (extra) {
        *extra = &g_dateFormattedExtra;
    }

    return g_dateFormatted.buffer;
}

PCWSTR GetDateFormatted() {
    return GetDateFormattedWithExtra(nullptr);
}

std::vector<std::wstring>* GetDateFormattedExtra() {
    std::vector<std::wstring>* extra;
    GetDateFormattedWithExtra(&extra);
    return extra;
}

PCWSTR GetDateFormattedTz(size_t index) {
    if (index >= g_settings.timeZones.size()) {
        return nullptr;
    }

    auto& dateFormattedTz = g_dateFormattedTz[index];

    if (dateFormattedTz.formatIndex != g_formatIndex) {
        const auto& timeZoneInformation = g_timeZoneInformation[index];
        if (timeZoneInformation && pSystemTimeToTzSpecificLocalTimeEx) {
            SYSTEMTIME systemTime;
            TzSpecificLocalTimeToSystemTime(nullptr, &g_formatTime,
                                            &systemTime);

            SYSTEMTIME timeTz;
            pSystemTimeToTzSpecificLocalTimeEx(&*timeZoneInformation,
                                               &systemTime, &timeTz);

            const SYSTEMTIME* time = &timeTz;

            auto dateFormatParts =
                SplitTimeFormatString(g_settings.dateFormat.get());

            GetDateFormatEx_Original(
                nullptr, DATE_AUTOLAYOUT, time,
                !dateFormatParts[0].empty() ? dateFormatParts[0].c_str()
                                            : nullptr,
                dateFormattedTz.buffer, ARRAYSIZE(dateFormattedTz.buffer),
                nullptr);
        } else {
            wcscpy_s(dateFormattedTz.buffer, L"-");
        }

        dateFormattedTz.formatIndex = g_formatIndex;
    }

    return dateFormattedTz.buffer;
}

void FormatWeekday(const SYSTEMTIME* time, PWSTR buffer, size_t bufferSize) {
    if (g_settings.weekdayFormatCustom.empty()) {
        GetDateFormatEx_Original(nullptr, DATE_AUTOLAYOUT, time,
                                 *g_settings.weekdayFormat
                                     ? g_settings.weekdayFormat.get()
                                     : L"dddd",
                                 buffer, bufferSize, nullptr);
    } else if (g_settings.weekdayFormatCustom.size() > time->wDayOfWeek) {
        // Copy truncated.
        wcsncpy_s(buffer, bufferSize,
                  g_settings.weekdayFormatCustom[time->wDayOfWeek].c_str(),
                  bufferSize - 1);
    } else {
        wcscpy_s(buffer, bufferSize, L"-");
    }
}

PCWSTR GetWeekdayFormatted() {
    if (g_weekdayFormatted.formatIndex != g_formatIndex) {
        const SYSTEMTIME* time = &g_formatTime;

        FormatWeekday(time, g_weekdayFormatted.buffer,
                      ARRAYSIZE(g_weekdayFormatted.buffer));

        g_weekdayFormatted.formatIndex = g_formatIndex;
    }

    return g_weekdayFormatted.buffer;
}

PCWSTR GetWeekdayFormattedTz(size_t index) {
    if (index >= g_settings.timeZones.size()) {
        return nullptr;
    }

    auto& weekdayFormattedTz = g_weekdayFormattedTz[index];

    if (weekdayFormattedTz.formatIndex != g_formatIndex) {
        const auto& timeZoneInformation = g_timeZoneInformation[index];
        if (timeZoneInformation && pSystemTimeToTzSpecificLocalTimeEx) {
            SYSTEMTIME systemTime;
            TzSpecificLocalTimeToSystemTime(nullptr, &g_formatTime,
                                            &systemTime);

            SYSTEMTIME timeTz;
            pSystemTimeToTzSpecificLocalTimeEx(&*timeZoneInformation,
                                               &systemTime, &timeTz);

            const SYSTEMTIME* time = &timeTz;

            auto weekdayFormatParts =
                SplitTimeFormatString(g_settings.weekdayFormat.get());

            FormatWeekday(time, weekdayFormattedTz.buffer,
                          ARRAYSIZE(weekdayFormattedTz.buffer));
        } else {
            wcscpy_s(weekdayFormattedTz.buffer, L"-");
        }

        weekdayFormattedTz.formatIndex = g_formatIndex;
    }

    return weekdayFormattedTz.buffer;
}

PCWSTR GetWeekdayNumFormatted() {
    if (g_weekdayNumFormatted.formatIndex != g_formatIndex) {
        const SYSTEMTIME* time = &g_formatTime;

        DWORD startDayOfWeek = GetStartDayOfWeek(time);

        swprintf_s(g_weekdayNumFormatted.buffer, L"%d",
                   1 + (7 + time->wDayOfWeek - startDayOfWeek) % 7);

        g_weekdayNumFormatted.formatIndex = g_formatIndex;
    }

    return g_weekdayNumFormatted.buffer;
}

PCWSTR GetWeeknumFormatted() {
    if (g_weeknumFormatted.formatIndex != g_formatIndex) {
        const SYSTEMTIME* time = &g_formatTime;

        DWORD startDayOfWeek = GetStartDayOfWeek(time);

        swprintf_s(g_weeknumFormatted.buffer, L"%d",
                   CalculateWeeknum(time, startDayOfWeek));

        g_weeknumFormatted.formatIndex = g_formatIndex;
    }

    return g_weeknumFormatted.buffer;
}

PCWSTR GetWeeknumIsoFormatted() {
    if (g_weeknumIsoFormatted.formatIndex != g_formatIndex) {
        const SYSTEMTIME* time = &g_formatTime;

        swprintf_s(g_weeknumIsoFormatted.buffer, L"%d",
                   CalculateWeeknumIso(time));

        g_weeknumIsoFormatted.formatIndex = g_formatIndex;
    }

    return g_weeknumIsoFormatted.buffer;
}

PCWSTR GetDayOfYearFormatted() {
    if (g_dayOfYearFormatted.formatIndex != g_formatIndex) {
        const SYSTEMTIME* time = &g_formatTime;

        swprintf_s(g_dayOfYearFormatted.buffer, L"%d",
                   CalculateDayOfYearNumber(time));

        g_dayOfYearFormatted.formatIndex = g_formatIndex;
    }

    return g_dayOfYearFormatted.buffer;
}

PCWSTR GetTimezoneFormatted() {
    if (g_timezoneFormatted.formatIndex != g_formatIndex) {
        GetTimeZone(g_timezoneFormatted.buffer,
                    ARRAYSIZE(g_timezoneFormatted.buffer));

        g_timezoneFormatted.formatIndex = g_formatIndex;
    }

    return g_timezoneFormatted.buffer;
}

enum class MetricType {
    kUploadSpeed,
    kDownloadSpeed,
    kCpu,

    kCount,
};

class QueryDataCollectionSession {
   public:
    QueryDataCollectionSession() {
        winrt::check_hresult(PdhOpenQuery(nullptr, 0, &query_));
    }

    QueryDataCollectionSession(const QueryDataCollectionSession&) = delete;
    QueryDataCollectionSession& operator=(const QueryDataCollectionSession&) =
        delete;
    QueryDataCollectionSession(QueryDataCollectionSession&&) = delete;
    QueryDataCollectionSession& operator=(QueryDataCollectionSession&&) =
        delete;

    ~QueryDataCollectionSession() { PdhCloseQuery(query_); }

    bool AddMetric(MetricType type) {
        PCWSTR counter_path;
        bool is_wildcard = false;

        switch (type) {
            case MetricType::kDownloadSpeed:
                counter_path = L"\\Network Interface(*)\\Bytes Received/sec";
                is_wildcard = true;
                break;
            case MetricType::kUploadSpeed:
                counter_path = L"\\Network Interface(*)\\Bytes Sent/sec";
                is_wildcard = true;
                break;
            case MetricType::kCpu:
                counter_path = L"\\Processor Information(_Total)\\% Processor Utility";
                break;
            default:
                return false;
        }

        auto& metric = metrics_[static_cast<int>(type)];
        if (!metric.counters.empty()) {
            return false;
        }

        if (is_wildcard) {
            for (const auto& path : ExpandEnglishWildcard(counter_path)) {
                PDH_HCOUNTER counter;
                HRESULT hr = PdhAddCounter(query_, path.c_str(), 0, &counter);
                if (SUCCEEDED(hr)) {
                    metric.counters.push_back(counter);
                } else {
                    Wh_Log(L"PdhAddCounter error %08X", hr);
                }
            }
        } else {
            PDH_HCOUNTER counter;
            HRESULT hr =
                PdhAddEnglishCounter(query_, counter_path, 0, &counter);
            if (SUCCEEDED(hr)) {
                metric.counters.push_back(counter);
            } else {
                Wh_Log(L"PdhAddEnglishCounter error %08X", hr);
            }
        }

        return !metric.counters.empty();
    }

    bool SampleData() {
        HRESULT hr = PdhCollectQueryData(query_);
        if (FAILED(hr)) {
            Wh_Log(L"PdhCollectQueryData error %08X", hr);
            return false;
        }

        return true;
    }

    double QueryData(MetricType type) {
        const auto& metric = metrics_[static_cast<int>(type)];

        double sum = 0.0;
        for (auto counter : metric.counters) {
            PDH_FMT_COUNTERVALUE val;
            HRESULT hr = PdhGetFormattedCounterValue(counter, PDH_FMT_DOUBLE,
                                                     nullptr, &val);
            if (SUCCEEDED(hr)) {
                sum += val.doubleValue;
            } else {
                Wh_Log(L"PdhGetFormattedCounterValue error %08X", hr);
            }
        }

        return sum;
    }

   private:
    // Implemented according to the note here:
    // https://learn.microsoft.com/en-us/windows/win32/api/pdh/nf-pdh-pdhaddenglishcounterw
    std::vector<std::wstring> ExpandEnglishWildcard(PCWSTR wildcard_path) {
        // Step 1: Add English counter with wildcards to get localized path.
        PDH_HCOUNTER temp_counter;
        HRESULT hr =
            PdhAddEnglishCounter(query_, wildcard_path, 0, &temp_counter);
        if (FAILED(hr)) {
            Wh_Log(L"PdhAddEnglishCounter error %08X", hr);
            return {};
        }

        // Step 2: Get counter info to obtain localized full path.
        DWORD required = 0;
        hr = PdhGetCounterInfo(temp_counter, FALSE, &required, nullptr);
        if (FAILED(hr) && hr != static_cast<HRESULT>(PDH_MORE_DATA)) {
            Wh_Log(L"PdhGetCounterInfo (size) error %08X", hr);
            PdhRemoveCounter(temp_counter);
            return {};
        }

        if (required == 0) {
            PdhRemoveCounter(temp_counter);
            return {};
        }

        std::vector<BYTE> counter_info_buffer(required);
        PDH_COUNTER_INFO* counter_info =
            reinterpret_cast<PDH_COUNTER_INFO*>(counter_info_buffer.data());

        hr = PdhGetCounterInfo(temp_counter, FALSE, &required, counter_info);
        PdhRemoveCounter(temp_counter);
        if (FAILED(hr)) {
            Wh_Log(L"PdhGetCounterInfo error %08X", hr);
            return {};
        }

        // Step 3: Expand wildcards using the localized path.
        required = 0;
        hr = PdhExpandWildCardPath(nullptr, counter_info->szFullPath, nullptr,
                                   &required, 0);
        if (FAILED(hr) && hr != static_cast<HRESULT>(PDH_MORE_DATA)) {
            Wh_Log(L"PdhExpandWildCardPath (localized, size) error %08X", hr);
            return {};
        }

        if (required == 0) {
            return {};
        }

        std::vector<WCHAR> path_buffer(required);
        hr = PdhExpandWildCardPath(nullptr, counter_info->szFullPath,
                                   path_buffer.data(), &required, 0);
        if (FAILED(hr)) {
            Wh_Log(L"PdhExpandWildCardPath (localized) error %08X", hr);
            return {};
        }

        std::vector<std::wstring> out_paths;
        WCHAR* p = path_buffer.data();
        while (*p) {
            Wh_Log(L"Expanded localized path: %s", p);
            out_paths.emplace_back(p);
            p += wcslen(p) + 1;
        }
        return out_paths;
    }

    struct MetricData {
        std::vector<PDH_HCOUNTER> counters;
    };

    PDH_HQUERY query_;
    MetricData metrics_[static_cast<int>(MetricType::kCount)];
};

std::optional<QueryDataCollectionSession> g_dataCollectionSession;
DWORD g_dataCollectionLastFormatIndex;

void DataCollectionSessionInit() {
    bool metrics[static_cast<int>(MetricType::kCount)]{};
    metrics[static_cast<int>(MetricType::kUploadSpeed)] =
        IsStrInDateTimePatternSettings(L"%upload_speed%");
    metrics[static_cast<int>(MetricType::kDownloadSpeed)] =
        IsStrInDateTimePatternSettings(L"%download_speed%");
    metrics[static_cast<int>(MetricType::kCpu)] =
        IsStrInDateTimePatternSettings(L"%cpu%");

    if (!std::any_of(std::begin(metrics), std::end(metrics),
                     [](bool x) { return x; })) {
        return;
    }

    try {
        g_dataCollectionSession.emplace();
    } catch (...) {
        HRESULT hr = winrt::to_hresult();
        Wh_Log(L"Error %08X", hr);
        return;
    }

    for (size_t i = 0; i < ARRAYSIZE(metrics); i++) {
        MetricType metric = static_cast<MetricType>(i);
        g_dataCollectionSession->AddMetric(metric);
    }

    g_dataCollectionSession->SampleData();
}

void DataCollectionSessionUninit() {
    g_dataCollectionSession.reset();
    g_dataCollectionLastFormatIndex = 0;
}

DWORD GetDataCollectionFormatIndex() {
    FILETIME formatTimeFt{};
    SystemTimeToFileTime(&g_formatTime, &formatTimeFt);
    ULARGE_INTEGER formatTimeInt{
        .LowPart = formatTimeFt.dwLowDateTime,
        .HighPart = formatTimeFt.dwHighDateTime,
    };

    constexpr ULONGLONG kSecondIn100Ns = 10000000ULL;
    ULONGLONG interval =
        kSecondIn100Ns * std::max(g_settings.dataCollection.updateInterval, 1);
    return static_cast<DWORD>(formatTimeInt.QuadPart / interval);
}

void DataCollectionSampleIfNeeded() {
    DWORD dataCollectionFormatIndex = GetDataCollectionFormatIndex();
    if (g_dataCollectionLastFormatIndex != dataCollectionFormatIndex) {
        if (g_dataCollectionSession) {
            g_dataCollectionSession->SampleData();
        }

        g_dataCollectionLastFormatIndex = dataCollectionFormatIndex;
    }
}

std::wstring FormatLocaleNum(double val, unsigned int digitsAfterDecimal) {
    int valStrLen = _scwprintf(L"%.17f", val);
    if (valStrLen < 0) {
        return std::wstring();
    }

    std::wstring valStr(valStrLen + 1, L'\0');
    if (swprintf_s(valStr.data(), valStr.size(), L"%.17f", val) < 0) {
        return std::wstring();
    }

    WCHAR decSep[4];
    if (!GetLocaleInfoEx(LOCALE_NAME_USER_DEFAULT, LOCALE_SDECIMAL, decSep,
                         ARRAYSIZE(decSep))) {
        // Fallback.
        decSep[0] = L'.';
        decSep[1] = L'\0';
    }

    NUMBERFMTW fmt{
        .NumDigits = digitsAfterDecimal,
        .LeadingZero = 1,
        .lpDecimalSep = const_cast<LPWSTR>(decSep),
        .lpThousandSep = const_cast<LPWSTR>(L""),
    };

    // Query required size.
    int needed = GetNumberFormatEx(LOCALE_NAME_USER_DEFAULT, 0, valStr.c_str(),
                                   &fmt, nullptr, 0);
    if (needed == 0) {
        return std::wstring();
    }

    // Format.
    std::wstring out(needed - 1, L'\0');
    if (GetNumberFormatEx(LOCALE_NAME_USER_DEFAULT, 0, valStr.c_str(), &fmt,
                          out.data(), needed) == 0) {
        return std::wstring();
    }

    return out;
}

void FormatTransferSpeed(double val, PWSTR buffer, size_t bufferSize) {
    constexpr int kKBInBytes = 1024;
    constexpr int kMBInBytes = 1024 * kKBInBytes;
    constexpr int kKbitInBytes = 1000 / 8;
    constexpr int kMbitInBytes = 1000 * kKbitInBytes;

    double valUnit;
    PCWSTR unit = L"";

    switch (g_settings.dataCollection.networkMetricsFormat) {
        case NetworkMetricsFormat::mbs:
            valUnit = val / kMBInBytes;
            unit = L" MB/s";
            break;

        case NetworkMetricsFormat::mbsNumberOnly:
            valUnit = val / kMBInBytes;
            break;

        case NetworkMetricsFormat::mbsDynamic:
            if (val / kKBInBytes < 1000) {
                valUnit = val / kKBInBytes;
                unit = L" KB/s";
            } else {
                valUnit = val / kMBInBytes;
                unit = L" MB/s";
            }
            break;

        case NetworkMetricsFormat::mbits:
            valUnit = val / kMbitInBytes;
            unit = L" MBit/s";
            break;

        case NetworkMetricsFormat::mbitsNumberOnly:
            valUnit = val / kMbitInBytes;
            break;

        case NetworkMetricsFormat::mbitsDynamic:
            if (val / kKbitInBytes < 1000) {
                valUnit = val / kKbitInBytes;
                unit = L" KBit/s";
            } else {
                valUnit = val / kMbitInBytes;
                unit = L" MBit/s";
            }
            break;
    }

    int digitsAfterDecimal = 0;
    PCWSTR prefix = L"";

    if (g_settings.dataCollection.networkMetricsFixedDecimals == -1) {
        // Keep identical width for <1000 values.
        if (valUnit < 10) {
            digitsAfterDecimal = 2;
        } else if (valUnit < 100) {
            digitsAfterDecimal = 1;
        } else if (valUnit < 1000) {
            // Punctuation Space.
            prefix = L"\u2008";
        }
    } else {
        digitsAfterDecimal =
            g_settings.dataCollection.networkMetricsFixedDecimals;
    }

    std::wstring valUnitFormatted =
        FormatLocaleNum(valUnit, digitsAfterDecimal);

    swprintf_s(buffer, bufferSize, L"%s%s%s", prefix, valUnitFormatted.c_str(),
               unit);
}

void FormatPercentValue(int val, PWSTR buffer, size_t bufferSize) {
    // Cap to 99 to keep identical width in all cases.
    if (val >= 100) {
        val = 99;
    }

    PCWSTR padding = L"";
    PCWSTR suffix = L"";

    switch (g_settings.dataCollection.percentageFormat) {
        case PercentageFormat::spacePaddingAndSymbol:
            padding = L"  ";
            suffix = L"%";
            break;

        case PercentageFormat::spacePadding:
            padding = L"  ";
            break;

        case PercentageFormat::zeroPadding:
            padding = L"0";
            break;

        case PercentageFormat::noPadding:
            break;
    }

    // Pad to keep identical width in all cases.
    PCWSTR prefix = val < 10 ? padding : L"";

    swprintf_s(buffer, bufferSize, L"%s%d%s", prefix, val, suffix);
}

template <size_t N>
PCWSTR GetMetricFormatted(FormattedString<N>& formattedString,
                          MetricType metricType) {
    DataCollectionSampleIfNeeded();

    DWORD dataCollectionFormatIndex = GetDataCollectionFormatIndex();
    if (formattedString.formatIndex != dataCollectionFormatIndex) {
        if (g_dataCollectionSession) {
            double val = g_dataCollectionSession->QueryData(metricType);
            if (metricType == MetricType::kUploadSpeed ||
                metricType == MetricType::kDownloadSpeed) {
                FormatTransferSpeed(val, formattedString.buffer,
                                    ARRAYSIZE(formattedString.buffer));
            } else {
                FormatPercentValue(static_cast<int>(val),
                                   formattedString.buffer,
                                   ARRAYSIZE(formattedString.buffer));
            }
        } else {
            wcscpy_s(formattedString.buffer, L"-");
        }

        formattedString.formatIndex = dataCollectionFormatIndex;
    }

    return formattedString.buffer;
}

PCWSTR GetUploadSpeedFormatted() {
    return GetMetricFormatted(g_uploadSpeedFormatted, MetricType::kUploadSpeed);
}

PCWSTR GetDownloadSpeedFormatted() {
    return GetMetricFormatted(g_downloadSpeedFormatted,
                              MetricType::kDownloadSpeed);
}

PCWSTR GetCpuFormatted() {
    return GetMetricFormatted(g_cpuFormatted, MetricType::kCpu);
}

PCWSTR GetRamFormatted() {
    DWORD dataCollectionFormatIndex = GetDataCollectionFormatIndex();
    if (g_ramFormatted.formatIndex != dataCollectionFormatIndex) {
        MEMORYSTATUSEX status{
            .dwLength = sizeof(status),
        };
        if (GlobalMemoryStatusEx(&status)) {
            FormatPercentValue(status.dwMemoryLoad, g_ramFormatted.buffer,
                               ARRAYSIZE(g_ramFormatted.buffer));
        } else {
            wcscpy_s(g_ramFormatted.buffer, L"-");
        }

        g_ramFormatted.formatIndex = dataCollectionFormatIndex;
    }

    return g_ramFormatted.buffer;
}

int ResolveFormatTokenWithDigit(std::wstring_view format,
                                std::wstring_view formatTokenPrefix,
                                std::wstring_view formatTokenSuffix) {
    if (format.size() <
        formatTokenPrefix.size() + 1 + formatTokenSuffix.size()) {
        return 0;
    }

    if (!format.starts_with(formatTokenPrefix)) {
        return 0;
    }

    char digitChar = format[formatTokenPrefix.size()];
    if (digitChar < L'1' || digitChar > L'9') {
        return 0;
    }

    if (!format.substr(formatTokenPrefix.size() + 1)
             .starts_with(formatTokenSuffix)) {
        return 0;
    }

    return digitChar - L'0';
}

size_t ResolveFormatToken(
    std::wstring_view format,
    std::function<void(PCWSTR resolvedStr)> resolvedCallback) {
    using FormattedStringValueGetter = PCWSTR (*)();

    struct {
        std::wstring_view token;
        FormattedStringValueGetter valueGetter;
    } formatTokens[] = {
        {L"%time%"sv, GetTimeFormatted},
        {L"%date%"sv, GetDateFormatted},
        {L"%weekday%"sv, GetWeekdayFormatted},
        {L"%weekday_num%"sv, GetWeekdayNumFormatted},
        {L"%weeknum%"sv, GetWeeknumFormatted},
        {L"%weeknum_iso%"sv, GetWeeknumIsoFormatted},
        {L"%dayofyear%"sv, GetDayOfYearFormatted},
        {L"%timezone%"sv, GetTimezoneFormatted},
        {L"%upload_speed%"sv, GetUploadSpeedFormatted},
        {L"%download_speed%"sv, GetDownloadSpeedFormatted},
        {L"%cpu%"sv, GetCpuFormatted},
        {L"%ram%"sv, GetRamFormatted},
        {L"%newline%"sv, []() { return L"\n"; }},
    };

    for (const auto& formatToken : formatTokens) {
        if (format.starts_with(formatToken.token)) {
            resolvedCallback(formatToken.valueGetter());
            return formatToken.token.size();
        }
    }

    using FormattedStringValueGetterTz = PCWSTR (*)(size_t index);

    struct {
        std::wstring_view prefix;
        FormattedStringValueGetterTz valueGetter;
    } formatTzTokens[] = {
        {L"%time_tz"sv, GetTimeFormattedTz},
        {L"%date_tz"sv, GetDateFormattedTz},
        {L"%weekday_tz"sv, GetWeekdayFormattedTz},
    };

    for (auto formatTzToken : formatTzTokens) {
        int digit =
            ResolveFormatTokenWithDigit(format, formatTzToken.prefix, L"%"sv);
        if (!digit) {
            continue;
        }

        PCWSTR value = formatTzToken.valueGetter(digit - 1);
        if (!value) {
            value = L"-";
        }

        resolvedCallback(value);
        return formatTzToken.prefix.size() + 2;
    }

    if (auto token = L"%web%"sv; format.starts_with(token)) {
        std::lock_guard<std::mutex> guard(g_webContentMutex);
        resolvedCallback(*g_webContent ? g_webContent : L"Loading...");
        return token.size();
    }

    if (auto token = L"%web_full%"sv; format.starts_with(token)) {
        std::lock_guard<std::mutex> guard(g_webContentMutex);
        resolvedCallback(*g_webContentFull ? g_webContentFull : L"Loading...");
        return token.size();
    }

    using FormattedStringVectorGetter = std::vector<std::wstring>* (*)();

    struct {
        std::wstring_view prefix;
        FormattedStringVectorGetter valueVectorGetter;
    } formatExtraTokens[] = {
        {L"%time"sv, GetTimeFormattedExtra},
        {L"%date"sv, GetDateFormattedExtra},
    };

    for (auto formatExtraToken : formatExtraTokens) {
        int digit = ResolveFormatTokenWithDigit(format, formatExtraToken.prefix,
                                                L"%"sv);
        if (!digit) {
            continue;
        }

        const auto& valueVector = *formatExtraToken.valueVectorGetter();

        PCWSTR value;
        if (digit < 2 || static_cast<size_t>(digit - 2) >= valueVector.size()) {
            value = L"-";
        } else {
            value = valueVector[digit - 2].c_str();
        }

        resolvedCallback(value);
        return formatExtraToken.prefix.size() + 2;
    }

    if (int digit = ResolveFormatTokenWithDigit(format, L"%web"sv, L"%"sv)) {
        size_t index = digit - 1;

        std::lock_guard<std::mutex> guard(g_webContentMutex);

        PCWSTR value;
        if (index >= g_webContentStrings.size()) {
            value = L"-";
        } else if (!g_webContentStrings[index]) {
            value = L"Loading...";
        } else {
            value = g_webContentStrings[index]->c_str();
        }

        resolvedCallback(value);
        return "%web1%"sv.size();
    }

    if (int digit =
            ResolveFormatTokenWithDigit(format, L"%web"sv, L"_full%"sv)) {
        size_t index = digit - 1;

        std::lock_guard<std::mutex> guard(g_webContentMutex);

        PCWSTR value;
        if (index >= g_webContentStringsFull.size()) {
            value = L"-";
        } else if (!g_webContentStringsFull[index]) {
            value = L"Loading...";
        } else {
            value = g_webContentStringsFull[index]->c_str();
        }

        resolvedCallback(value);
        return "%web1_full%"sv.size();
    }

    if (auto token = L"%weather%"sv; format.starts_with(token)) {
        std::lock_guard<std::mutex> guard(g_webContentMutex);
        resolvedCallback(g_webContentWeather ? g_webContentWeather->c_str()
                                             : L"Loading...");
        return token.size();
    }

    return 0;
}

int FormatLine(PWSTR buffer, size_t bufferSize, std::wstring_view format) {
    if (bufferSize == 0) {
        return 0;
    }

    std::wstring_view formatSuffix = format;

    PWSTR bufferStart = buffer;
    PWSTR bufferEnd = bufferStart + bufferSize;
    while (!formatSuffix.empty() && bufferEnd - buffer > 1) {
        if (formatSuffix[0] == L'%') {
            bool truncated = false;
            size_t formatTokenLen = ResolveFormatToken(
                formatSuffix,
                [&buffer, bufferEnd, &truncated](PCWSTR resolvedStr) {
                    buffer += StringCopyTruncated(buffer, bufferEnd - buffer,
                                                  resolvedStr, &truncated);
                });
            if (formatTokenLen > 0) {
                if (truncated) {
                    break;
                }

                formatSuffix = formatSuffix.substr(formatTokenLen);
                continue;
            }
        }

        *buffer++ = formatSuffix[0];
        formatSuffix = formatSuffix.substr(1);
    }

    if (!formatSuffix.empty() && bufferSize >= 4) {
        buffer[-1] = L'.';
        buffer[-2] = L'.';
        buffer[-3] = L'.';
    }

    *buffer = L'\0';

    return buffer - bufferStart;
}

#pragma region Win11Hooks

DWORD g_refreshIconThreadId;
bool g_refreshIconNeedToAdjustTimer;
bool g_inGetTimeToolTipString;

using ClockSystemTrayIconDataModel_RefreshIcon_t = void(WINAPI*)(
    LPVOID pThis,
    LPVOID  // SystemTrayTelemetry::ClockUpdate&
);
ClockSystemTrayIconDataModel_RefreshIcon_t
    ClockSystemTrayIconDataModel_RefreshIcon_Original;
ClockSystemTrayIconDataModel_RefreshIcon_t
    ClockSystemTrayIconDataModel2_RefreshIcon_Original;

using ClockSystemTrayIconDataModel_GetTimeToolTipString_t =
    LPVOID(WINAPI*)(LPVOID pThis, LPVOID, LPVOID, LPVOID, LPVOID);
ClockSystemTrayIconDataModel_GetTimeToolTipString_t
    ClockSystemTrayIconDataModel_GetTimeToolTipString_Original;
ClockSystemTrayIconDataModel_GetTimeToolTipString_t
    ClockSystemTrayIconDataModel2_GetTimeToolTipString_Original;

using ClockSystemTrayIconDataModel_GetTimeToolTipString2_t =
    LPVOID(WINAPI*)(LPVOID pThis, LPVOID, LPVOID, LPVOID, LPVOID);
ClockSystemTrayIconDataModel_GetTimeToolTipString2_t
    ClockSystemTrayIconDataModel_GetTimeToolTipString2_Original;
ClockSystemTrayIconDataModel_GetTimeToolTipString2_t
    ClockSystemTrayIconDataModel2_GetTimeToolTipString2_Original;

using DateTimeIconContent_OnApplyTemplate_t = void(WINAPI*)(LPVOID pThis);
DateTimeIconContent_OnApplyTemplate_t
    DateTimeIconContent_OnApplyTemplate_Original;

using BadgeIconContent_get_ViewModel_t = HRESULT(WINAPI*)(LPVOID pThis,
                                                          LPVOID pArgs);
BadgeIconContent_get_ViewModel_t BadgeIconContent_get_ViewModel_Original;

using ClockSystemTrayIconDataModel_GetTimeToolTipString_2_t =
    LPVOID(WINAPI*)(LPVOID pThis, LPVOID, LPVOID, LPVOID, LPVOID);
ClockSystemTrayIconDataModel_GetTimeToolTipString_2_t
    ClockSystemTrayIconDataModel_GetTimeToolTipString_2_Original;

using ICalendar_Second_t = int(WINAPI*)(LPVOID pThis);
ICalendar_Second_t ICalendar_Second_Original;

using ThreadPoolTimer_CreateTimer_t = LPVOID(WINAPI*)(LPVOID param1,
                                                      LPVOID param2,
                                                      LPVOID param3,
                                                      LPVOID param4);
ThreadPoolTimer_CreateTimer_t ThreadPoolTimer_CreateTimer_Original;

using ThreadPoolTimer_CreateTimer_lambda_t = LPVOID(WINAPI*)(DWORD_PTR** param1,
                                                             LPVOID param2,
                                                             LPVOID param3);
ThreadPoolTimer_CreateTimer_lambda_t
    ThreadPoolTimer_CreateTimer_lambda_Original;

void ClockSystemTrayIconDataModel_RefreshIcon_Hook_Impl(
    LPVOID pThis,
    LPVOID param1,
    ClockSystemTrayIconDataModel_RefreshIcon_t original) {
    g_refreshIconThreadId = GetCurrentThreadId();
    g_refreshIconNeedToAdjustTimer = g_settings.showSeconds ||
                                     g_dataCollectionSession ||
                                     !g_webContentLoaded;

    original(pThis, param1);

    g_refreshIconThreadId = 0;
    g_refreshIconNeedToAdjustTimer = false;
}

void WINAPI ClockSystemTrayIconDataModel_RefreshIcon_Hook(LPVOID pThis,
                                                          LPVOID param1) {
    Wh_Log(L">");

    ClockSystemTrayIconDataModel_RefreshIcon_Hook_Impl(
        pThis, param1, ClockSystemTrayIconDataModel_RefreshIcon_Original);
}

void WINAPI ClockSystemTrayIconDataModel2_RefreshIcon_Hook(LPVOID pThis,
                                                           LPVOID param1) {
    Wh_Log(L">");

    ClockSystemTrayIconDataModel_RefreshIcon_Hook_Impl(
        pThis, param1, ClockSystemTrayIconDataModel2_RefreshIcon_Original);
}

void UpdateToolTipString(LPVOID tooltipPtrPtr) {
    auto separator = L"\r\n\r\n"sv;

    WCHAR extraLine[256];
    size_t extraLength = FormatLine(extraLine, ARRAYSIZE(extraLine),
                                    g_settings.tooltipLine.get());
    if (extraLength == 0) {
        return;
    }

    // Reference:
    // https://github.com/microsoft/cppwinrt/blob/0a6cb062e2151cf6c8f357aa8ef735e359f8a98c/strings/base_string.h
    struct hstring_header {
        uint32_t flags;
        uint32_t length;
        uint32_t padding1;
        uint32_t padding2;
        wchar_t const* ptr;
    };

    struct shared_hstring_header : hstring_header {
        int32_t /*atomic_ref_count*/ count;
        wchar_t buffer[1];
    };

    shared_hstring_header* tooltipHeader =
        *(shared_hstring_header**)tooltipPtrPtr;

    uint64_t bytesRequired =
        sizeof(shared_hstring_header) +
        sizeof(wchar_t) *
            (tooltipHeader->length + separator.length() + extraLength);

    shared_hstring_header* tooltipHeaderNew =
        (shared_hstring_header*)HeapReAlloc(GetProcessHeap(), 0, tooltipHeader,
                                            bytesRequired);
    if (!tooltipHeaderNew) {
        return;
    }

    tooltipHeaderNew->ptr = tooltipHeaderNew->buffer;

    memcpy(tooltipHeaderNew->buffer + tooltipHeaderNew->length,
           separator.data(), sizeof(wchar_t) * separator.length());
    tooltipHeaderNew->length += separator.length();

    memcpy(tooltipHeaderNew->buffer + tooltipHeaderNew->length, extraLine,
           sizeof(wchar_t) * extraLength);
    tooltipHeaderNew->length += extraLength;

    tooltipHeaderNew->buffer[tooltipHeaderNew->length] = L'\0';

    *(shared_hstring_header**)tooltipPtrPtr = tooltipHeaderNew;
}

LPVOID ClockSystemTrayIconDataModel_GetTimeToolTipString_Hook_Impl(
    LPVOID pThis,
    LPVOID param1,
    LPVOID param2,
    LPVOID param3,
    LPVOID param4,
    ClockSystemTrayIconDataModel_GetTimeToolTipString_t original) {
    g_inGetTimeToolTipString = true;

    LPVOID ret = original(pThis, param1, param2, param3, param4);

    UpdateToolTipString(ret);

    g_inGetTimeToolTipString = false;

    return ret;
}

LPVOID WINAPI
ClockSystemTrayIconDataModel_GetTimeToolTipString_Hook(LPVOID pThis,
                                                       LPVOID param1,
                                                       LPVOID param2,
                                                       LPVOID param3,
                                                       LPVOID param4) {
    Wh_Log(L">");

    return ClockSystemTrayIconDataModel_GetTimeToolTipString_Hook_Impl(
        pThis, param1, param2, param3, param4,
        ClockSystemTrayIconDataModel_GetTimeToolTipString_Original);
}

LPVOID WINAPI
ClockSystemTrayIconDataModel2_GetTimeToolTipString_Hook(LPVOID pThis,
                                                        LPVOID param1,
                                                        LPVOID param2,
                                                        LPVOID param3,
                                                        LPVOID param4) {
    Wh_Log(L">");

    return ClockSystemTrayIconDataModel_GetTimeToolTipString_Hook_Impl(
        pThis, param1, param2, param3, param4,
        ClockSystemTrayIconDataModel2_GetTimeToolTipString_Original);
}

LPVOID
ClockSystemTrayIconDataModel_GetTimeToolTipString2_Hook_Impl(
    LPVOID pThis,
    LPVOID param1,
    LPVOID param2,
    LPVOID param3,
    LPVOID param4,
    ClockSystemTrayIconDataModel_GetTimeToolTipString2_t original) {
    g_inGetTimeToolTipString = true;

    LPVOID ret = original(pThis, param1, param2, param3, param4);

    UpdateToolTipString(ret);

    g_inGetTimeToolTipString = false;

    return ret;
}

LPVOID WINAPI
ClockSystemTrayIconDataModel_GetTimeToolTipString2_Hook(LPVOID pThis,
                                                        LPVOID param1,
                                                        LPVOID param2,
                                                        LPVOID param3,
                                                        LPVOID param4) {
    Wh_Log(L">");

    return ClockSystemTrayIconDataModel_GetTimeToolTipString2_Hook_Impl(
        pThis, param1, param2, param3, param4,
        ClockSystemTrayIconDataModel_GetTimeToolTipString2_Original);
}

LPVOID WINAPI
ClockSystemTrayIconDataModel2_GetTimeToolTipString2_Hook(LPVOID pThis,
                                                         LPVOID param1,
                                                         LPVOID param2,
                                                         LPVOID param3,
                                                         LPVOID param4) {
    Wh_Log(L">");

    return ClockSystemTrayIconDataModel_GetTimeToolTipString2_Hook_Impl(
        pThis, param1, param2, param3, param4,
        ClockSystemTrayIconDataModel2_GetTimeToolTipString2_Original);
}

FrameworkElement FindChildByName(FrameworkElement element,
                                 winrt::hstring name) {
    int childrenCount = Media::VisualTreeHelper::GetChildrenCount(element);

    for (int i = 0; i < childrenCount; i++) {
        auto child = Media::VisualTreeHelper::GetChild(element, i)
                         .try_as<FrameworkElement>();
        if (!child) {
            Wh_Log(L"Failed to get child %d of %d", i + 1, childrenCount);
            continue;
        }

        if (child.Name() == name) {
            return child;
        }
    }

    return nullptr;
}

void ApplyStackPanelStyles(Controls::StackPanel stackPanel,
                           int maxWidth,
                           int textSpacing) {
    if (maxWidth) {
        stackPanel.MaxWidth(maxWidth);
    } else {
        stackPanel.as<DependencyObject>().ClearValue(
            FrameworkElement::MaxWidthProperty());
    }

    if (textSpacing) {
        stackPanel.Spacing(textSpacing);
    } else {
        stackPanel.as<DependencyObject>().ClearValue(
            Controls::StackPanel::SpacingProperty());
    }
}

void ApplyTextBlockStyles(
    Controls::TextBlock textBlock,
    const TextStyleSettings* textStyleSettings,
    bool noWrap,
    std::optional<int64_t>* visibilityPropertyChangedToken) {
    if (visibilityPropertyChangedToken->has_value()) {
        textBlock.UnregisterPropertyChangedCallback(
            UIElement::VisibilityProperty(),
            visibilityPropertyChangedToken->value());
    }

    if (textStyleSettings && textStyleSettings->hidden) {
        textBlock.Visibility(Visibility::Collapsed);
        *visibilityPropertyChangedToken =
            textBlock.RegisterPropertyChangedCallback(
                UIElement::VisibilityProperty(),
                [](DependencyObject sender, DependencyProperty property) {
                    auto textBlock = sender.try_as<Controls::TextBlock>();
                    if (!textBlock) {
                        return;
                    }

                    textBlock.Visibility(Visibility::Collapsed);
                });
        return;
    }

    visibilityPropertyChangedToken->reset();

    textBlock.Visibility(Visibility::Visible);

    if (noWrap) {
        textBlock.TextWrapping(TextWrapping::NoWrap);
    } else {
        textBlock.as<DependencyObject>().ClearValue(
            Controls::TextBlock::TextWrappingProperty());
    }

    if (textStyleSettings && *textStyleSettings->textColor) {
        auto textColor =
            Markup::XamlBindingHelper::ConvertValue(
                winrt::xaml_typename<winrt::Windows::UI::Color>(),
                winrt::box_value(textStyleSettings->textColor.get()))
                .as<winrt::Windows::UI::Color>();
        textBlock.Foreground(Media::SolidColorBrush{textColor});
    } else {
        textBlock.as<DependencyObject>().ClearValue(
            Controls::TextBlock::ForegroundProperty());
    }

    if (textStyleSettings && *textStyleSettings->textAlignment) {
        auto textAlignment =
            Markup::XamlBindingHelper::ConvertValue(
                winrt::xaml_typename<TextAlignment>(),
                winrt::box_value(textStyleSettings->textAlignment.get()))
                .as<TextAlignment>();
        textBlock.TextAlignment(textAlignment);
    } else {
        textBlock.TextAlignment(TextAlignment::End);
    }

    if (textStyleSettings && textStyleSettings->fontSize) {
        textBlock.FontSize(textStyleSettings->fontSize);
    } else {
        textBlock.as<DependencyObject>().ClearValue(
            Controls::TextBlock::FontSizeProperty());
    }

    if (textStyleSettings && *textStyleSettings->fontFamily) {
        auto fontFamily =
            Markup::XamlBindingHelper::ConvertValue(
                winrt::xaml_typename<Media::FontFamily>(),
                winrt::box_value(textStyleSettings->fontFamily.get()))
                .as<Media::FontFamily>();
        textBlock.FontFamily(fontFamily);
    } else {
        textBlock.as<DependencyObject>().ClearValue(
            Controls::TextBlock::FontFamilyProperty());
    }

    if (textStyleSettings && *textStyleSettings->fontWeight) {
        auto fontWeight =
            Markup::XamlBindingHelper::ConvertValue(
                winrt::xaml_typename<winrt::Windows::UI::Text::FontWeight>(),
                winrt::box_value(textStyleSettings->fontWeight.get()))
                .as<winrt::Windows::UI::Text::FontWeight>();
        textBlock.FontWeight(fontWeight);
    } else {
        textBlock.as<DependencyObject>().ClearValue(
            Controls::TextBlock::FontWeightProperty());
    }

    if (textStyleSettings && *textStyleSettings->fontStyle) {
        auto fontStyle =
            Markup::XamlBindingHelper::ConvertValue(
                winrt::xaml_typename<winrt::Windows::UI::Text::FontStyle>(),
                winrt::box_value(textStyleSettings->fontStyle.get()))
                .as<winrt::Windows::UI::Text::FontStyle>();
        textBlock.FontStyle(fontStyle);
    } else {
        textBlock.as<DependencyObject>().ClearValue(
            Controls::TextBlock::FontStyleProperty());
    }

    if (textStyleSettings && *textStyleSettings->fontStretch) {
        auto fontStretch =
            Markup::XamlBindingHelper::ConvertValue(
                winrt::xaml_typename<winrt::Windows::UI::Text::FontStretch>(),
                winrt::box_value(textStyleSettings->fontStretch.get()))
                .as<winrt::Windows::UI::Text::FontStretch>();
        textBlock.FontStretch(fontStretch);
    } else {
        textBlock.as<DependencyObject>().ClearValue(
            Controls::TextBlock::FontStretchProperty());
    }

    if (textStyleSettings && textStyleSettings->characterSpacing) {
        textBlock.CharacterSpacing(textStyleSettings->characterSpacing);
    } else {
        textBlock.as<DependencyObject>().ClearValue(
            Controls::TextBlock::CharacterSpacingProperty());
    }
}

void ApplyDateTimeIconContentStyles(
    FrameworkElement dateTimeIconContentElement) {
    ClockElementStyleData* clockElementStyleData = nullptr;

    for (auto it = g_clockElementStyleData.begin();
         it != g_clockElementStyleData.end();) {
        auto& data = *it;
        auto element = data.dateTimeIconContentElement.get();
        if (!element) {
            it = g_clockElementStyleData.erase(it);
            continue;
        }

        if (element == dateTimeIconContentElement) {
            clockElementStyleData = &data;
            break;
        }

        ++it;
    }

    bool clockElementStyleEnabled = g_clockElementStyleEnabled;
    DWORD clockElementStyleIndex = g_clockElementStyleIndex;

    if (!clockElementStyleData && !clockElementStyleEnabled) {
        return;
    }

    if (clockElementStyleData &&
        clockElementStyleData->styleIndex == clockElementStyleIndex) {
        return;
    }

    auto containerGridElement =
        FindChildByName(dateTimeIconContentElement, L"ContainerGrid")
            .as<Controls::Grid>();
    if (!containerGridElement) {
        return;
    }

    auto stackPanel =
        containerGridElement.Children().GetAt(0).as<Controls::StackPanel>();

    Controls::TextBlock dateInnerTextBlock = nullptr;
    Controls::TextBlock timeInnerTextBlock = nullptr;

    for (const auto& child : stackPanel.Children()) {
        auto childTextBlock = child.try_as<Controls::TextBlock>();
        if (!childTextBlock) {
            continue;
        }

        if (childTextBlock.Name() == L"DateInnerTextBlock") {
            dateInnerTextBlock = childTextBlock;
            continue;
        }

        if (childTextBlock.Name() == L"TimeInnerTextBlock") {
            timeInnerTextBlock = childTextBlock;
            continue;
        }
    }

    if (!dateInnerTextBlock || !timeInnerTextBlock) {
        return;
    }

    if (!clockElementStyleData) {
        g_clockElementStyleData.push_back(ClockElementStyleData{
            .dateTimeIconContentElement = dateTimeIconContentElement,
        });
        clockElementStyleData = &g_clockElementStyleData.back();
    }

    int maxWidth = clockElementStyleEnabled ? g_settings.maxWidth : 0;
    int textSpacing = clockElementStyleEnabled ? g_settings.textSpacing : 0;
    bool noWrap = maxWidth;

    ApplyStackPanelStyles(stackPanel, maxWidth, textSpacing);
    ApplyTextBlockStyles(
        dateInnerTextBlock,
        clockElementStyleEnabled ? &g_settings.dateStyle : nullptr, noWrap,
        &clockElementStyleData->dateVisibilityPropertyChangedToken);
    ApplyTextBlockStyles(
        timeInnerTextBlock,
        clockElementStyleEnabled ? &g_settings.timeStyle : nullptr, noWrap,
        &clockElementStyleData->timeVisibilityPropertyChangedToken);

    clockElementStyleData->styleIndex = clockElementStyleIndex;
}

void WINAPI DateTimeIconContent_OnApplyTemplate_Hook(LPVOID pThis) {
    Wh_Log(L">");

    DateTimeIconContent_OnApplyTemplate_Original(pThis);

    IUnknown* dateTimeIconContentElementIUnknownPtr = *((IUnknown**)pThis + 1);
    if (!dateTimeIconContentElementIUnknownPtr) {
        return;
    }

    FrameworkElement dateTimeIconContentElement = nullptr;
    dateTimeIconContentElementIUnknownPtr->QueryInterface(
        winrt::guid_of<FrameworkElement>(),
        winrt::put_abi(dateTimeIconContentElement));
    if (!dateTimeIconContentElement) {
        return;
    }

    try {
        ApplyDateTimeIconContentStyles(dateTimeIconContentElement);
    } catch (...) {
        HRESULT hr = winrt::to_hresult();
        Wh_Log(L"Error %08X", hr);
    }
}

HRESULT WINAPI BadgeIconContent_get_ViewModel_Hook(LPVOID pThis, LPVOID pArgs) {
    // Wh_Log(L">");

    HRESULT ret = BadgeIconContent_get_ViewModel_Original(pThis, pArgs);

    try {
        winrt::Windows::Foundation::IInspectable obj = nullptr;
        winrt::check_hresult(
            ((IUnknown*)pThis)
                ->QueryInterface(
                    winrt::guid_of<winrt::Windows::Foundation::IInspectable>(),
                    winrt::put_abi(obj)));

        if (winrt::get_class_name(obj) == L"SystemTray.DateTimeIconContent") {
            auto dateTimeIconContentElement = obj.as<FrameworkElement>();
            if (dateTimeIconContentElement.IsLoaded()) {
                ApplyDateTimeIconContentStyles(dateTimeIconContentElement);
            }
        }
    } catch (...) {
        HRESULT hr = winrt::to_hresult();
        Wh_Log(L"Error %08X", hr);
    }

    return ret;
}

LPVOID WINAPI
ClockSystemTrayIconDataModel_GetTimeToolTipString_2_Hook(LPVOID pThis,
                                                         LPVOID param1,
                                                         LPVOID param2,
                                                         LPVOID param3,
                                                         LPVOID param4) {
    Wh_Log(L">");

    g_inGetTimeToolTipString = true;

    LPVOID ret = ClockSystemTrayIconDataModel_GetTimeToolTipString_2_Original(
        pThis, param1, param2, param3, param4);

    UpdateToolTipString(ret);

    g_inGetTimeToolTipString = false;

    return ret;
}

int WINAPI ICalendar_Second_Hook(LPVOID pThis) {
    Wh_Log(L">");

    if (g_refreshIconThreadId == GetCurrentThreadId() &&
        !g_inGetTimeToolTipString && g_refreshIconNeedToAdjustTimer) {
        g_refreshIconNeedToAdjustTimer = false;

        // Make the next refresh happen in a second.
        return 59;
    }

    int ret = ICalendar_Second_Original(pThis);

    return ret;
}

// Similar to ThreadPoolTimer_CreateTimer_lambda_Hook. Only one of them is
// called in some Windows versions due to function inlining.
LPVOID WINAPI ThreadPoolTimer_CreateTimer_Hook(LPVOID param1,
                                               LPVOID param2,
                                               LPVOID param3,
                                               LPVOID param4) {
    // In newer Windows 11 versions, there are only 3 arguments, but that's OK
    // because argument 4 is just ignored (register d9).
    ULONGLONG** elapse =
        (ULONGLONG**)(g_winVersion >= WinVersion::Win11_22H2 ? &param3
                                                             : &param4);

    Wh_Log(L"> %zu", **elapse);

    ULONGLONG elapseNew;

    if (g_refreshIconThreadId == GetCurrentThreadId() &&
        !g_inGetTimeToolTipString && **elapse == 10000000) {
        // Make the next refresh happen next second. Without this hook, the
        // timer was always set one second forward, and so the clock was
        // accumulating a delay, finally caused one second to be skipped.
        SYSTEMTIME time;
        if (GetLocalTime_Original) {
            GetLocalTime_Original(&time);
        } else {
            GetLocalTime(&time);
        }
        elapseNew = 10000ULL * (1000 - time.wMilliseconds);
        *elapse = &elapseNew;
    }

    return ThreadPoolTimer_CreateTimer_Original(param1, param2, param3, param4);
}

// Similar to ThreadPoolTimer_CreateTimer_Hook. Only one of them is called in
// some Windows versions due to function inlining.
LPVOID WINAPI ThreadPoolTimer_CreateTimer_lambda_Hook(DWORD_PTR** param1,
                                                      LPVOID param2,
                                                      LPVOID param3) {
    DWORD_PTR* elapse = param1[1];

    Wh_Log(L"> %zu", *elapse);

    if (g_refreshIconThreadId == GetCurrentThreadId() &&
        !g_inGetTimeToolTipString && *elapse == 10000000) {
        // Make the next refresh happen next second. Without this hook, the
        // timer was always set one second forward, and so the clock was
        // accumulating a delay, finally caused one second to be skipped.
        SYSTEMTIME time;
        if (GetLocalTime_Original) {
            GetLocalTime_Original(&time);
        } else {
            GetLocalTime(&time);
        }
        *elapse = 10000ULL * (1000 - time.wMilliseconds);
    }

    return ThreadPoolTimer_CreateTimer_lambda_Original(param1, param2, param3);
}

VOID WINAPI GetLocalTime_Hook_Win11(LPSYSTEMTIME lpSystemTime) {
    Wh_Log(L">");

    if (g_refreshIconThreadId == GetCurrentThreadId() &&
        !g_inGetTimeToolTipString && g_refreshIconNeedToAdjustTimer) {
        g_refreshIconNeedToAdjustTimer = false;

        // Make the next refresh happen in a second.
        memset(lpSystemTime, 0, sizeof(*lpSystemTime));
        lpSystemTime->wSecond = 59;
        return;
    }

    GetLocalTime_Original(lpSystemTime);
}

int WINAPI GetTimeFormatEx_Hook_Win11(LPCWSTR lpLocaleName,
                                      DWORD dwFlags,
                                      CONST SYSTEMTIME* lpTime,
                                      LPCWSTR lpFormat,
                                      LPWSTR lpTimeStr,
                                      int cchTime) {
    if (g_refreshIconThreadId == GetCurrentThreadId() &&
        !g_inGetTimeToolTipString) {
        if (wcscmp(g_settings.topLine, L"-") != 0) {
            if (!cchTime) {
                // Hopefully a large enough buffer size.
                return FORMATTED_BUFFER_SIZE;
            }

            return FormatLine(lpTimeStr, cchTime, g_settings.topLine.get()) + 1;
        }
    }

    int ret = GetTimeFormatEx_Original(lpLocaleName, dwFlags, lpTime, lpFormat,
                                       lpTimeStr, cchTime);

    return ret;
}

int WINAPI GetDateFormatEx_Hook_Win11(LPCWSTR lpLocaleName,
                                      DWORD dwFlags,
                                      CONST SYSTEMTIME* lpDate,
                                      LPCWSTR lpFormat,
                                      LPWSTR lpDateStr,
                                      int cchDate,
                                      LPCWSTR lpCalendar) {
    if (g_refreshIconThreadId == GetCurrentThreadId() &&
        !g_inGetTimeToolTipString) {
        // Below is a fix for the following situation. The code inside
        // winrt::SystemTray::implementation::ClockSystemTrayIconDataModel::RefreshIcon
        // looks similar to the following (pseudo code):
        //
        // ----------------------------------------
        // if (someFlag) {
        //     SYSTEMTIME t1;
        //     GetLocalTime(&t1);
        //     setTimeout(nextUpdate, calcNextUpdate(t1.wSecond));
        // }
        // SYSTEMTIME t2;
        // GetLocalTime(&t2);
        // GetDateFormatEx(..., &t2, ...);
        // ----------------------------------------
        //
        // We hook GetLocalTime and change wSecond to update the clock every
        // second, which works if someFlag is set. But in case someFlag isn't
        // set, we end up changing the result of the second GetLocalTime call.
        // To handle this, we check whether the time we get here is the time we
        // set in the hook, and if so, we call GetLocalTime explicitly to pass
        // the correct date to GetDateFormatEx.
        //
        // I'm not sure what someFlag means, but it becomes false when the
        // monitor turns off.

        SYSTEMTIME sentinelSystemTime;
        memset(&sentinelSystemTime, 0, sizeof(sentinelSystemTime));
        sentinelSystemTime.wSecond = 59;
        if (memcmp(lpDate, &sentinelSystemTime, sizeof(sentinelSystemTime)) ==
            0) {
            if (GetLocalTime_Original) {
                GetLocalTime_Original(const_cast<SYSTEMTIME*>(lpDate));
            } else {
                GetLocalTime(const_cast<SYSTEMTIME*>(lpDate));
            }
        }

        if (!(dwFlags & DATE_LONGDATE)) {
            if (!cchDate || g_winVersion >= WinVersion::Win11_22H2) {
                // First call, save date for formatting.
                g_formatTime = *lpDate;
                g_formatIndex++;
            }

            if (wcscmp(g_settings.bottomLine, L"-") != 0) {
                if (!cchDate) {
                    // Hopefully a large enough buffer size.
                    return FORMATTED_BUFFER_SIZE;
                }

                return FormatLine(lpDateStr, cchDate,
                                  g_settings.bottomLine.get()) +
                       1;
            }
        }
    }

    int ret = GetDateFormatEx_Original(lpLocaleName, dwFlags, lpDate, lpFormat,
                                       lpDateStr, cchDate, lpCalendar);

    return ret;
}

LRESULT WINAPI SendMessageW_Hook(HWND hWnd,
                                 UINT Msg,
                                 WPARAM wParam,
                                 LPARAM lParam) {
    LRESULT ret = SendMessageW_Original(hWnd, Msg, wParam, lParam);

    if (Msg != WM_POWERBROADCAST || wParam != PBT_APMQUERYSUSPEND) {
        return ret;
    }

    switch (lParam) {
        case PBT_APMRESUMECRITICAL:
        case PBT_APMRESUMESUSPEND:
        case PBT_APMRESUMEAUTOMATIC:
            break;

        default:
            return ret;
    }

    WCHAR szClassName[64];
    if (GetClassName(hWnd, szClassName, ARRAYSIZE(szClassName)) == 0) {
        return ret;
    }

    if (_wcsicmp(szClassName, L"MSTaskSwWClass") != 0) {
        return ret;
    }

    Wh_Log(L"Resumed, refreshing web contents");

    std::lock_guard<std::mutex> guard(g_webContentMutex);

    HANDLE event = g_webContentUpdateRefreshEvent;
    if (event) {
        g_webContentLoaded = false;
        SetEvent(event);
    }

    return ret;
}

#pragma endregion Win11Hooks

#pragma region Win10Hooks

DWORD g_updateTextStringThreadId;
int g_getDateFormatExCounter;
DWORD g_getTooltipTextThreadId;
WCHAR* g_getTooltipTextBuffer;
int g_getTooltipTextBufferSize;

using ClockButton_UpdateTextStringsIfNecessary_t =
    unsigned int(WINAPI*)(LPVOID pThis, bool*);
ClockButton_UpdateTextStringsIfNecessary_t
    ClockButton_UpdateTextStringsIfNecessary_Original;

using ClockButton_CalculateMinimumSize_t = LPSIZE(WINAPI*)(LPVOID pThis,
                                                           LPSIZE,
                                                           SIZE);
ClockButton_CalculateMinimumSize_t ClockButton_CalculateMinimumSize_Original;

using ClockButton_GetTextSpacingForOrientation_t =
    int(WINAPI*)(LPVOID pThis, bool, DWORD, DWORD, DWORD, DWORD);
ClockButton_GetTextSpacingForOrientation_t
    ClockButton_GetTextSpacingForOrientation_Original;

using ClockButton_v_GetTooltipText_t =
    HRESULT(WINAPI*)(LPVOID pThis, LPVOID, LPVOID, LPVOID, LPVOID);
ClockButton_v_GetTooltipText_t ClockButton_v_GetTooltipText_Original;

using ClockButton_v_OnDisplayStateChange_t = void(WINAPI*)(LPVOID pThis, bool);
ClockButton_v_OnDisplayStateChange_t
    ClockButton_v_OnDisplayStateChange_Original;

HRESULT WINAPI ClockButton_v_GetTooltipText_Hook(LPVOID pThis,
                                                 LPVOID param1,
                                                 LPVOID param2,
                                                 LPVOID param3,
                                                 LPVOID param4) {
    Wh_Log(L">");

    g_getTooltipTextThreadId = GetCurrentThreadId();

    HRESULT ret = ClockButton_v_GetTooltipText_Original(pThis, param1, param2,
                                                        param3, param4);

    if (g_getTooltipTextBuffer) {
        size_t stringLen = wcslen(g_getTooltipTextBuffer);
        WCHAR* p = g_getTooltipTextBuffer + stringLen;
        size_t size = g_getTooltipTextBufferSize + stringLen;
        if (size > 4) {
            wcscpy(p, L"\r\n\r\n");
            FormatLine(p + 4, size - 4, g_settings.tooltipLine.get());
        }
    }

    g_getTooltipTextBuffer = nullptr;
    g_getTooltipTextBufferSize = 0;

    g_getTooltipTextThreadId = 0;

    return ret;
}

unsigned int WINAPI
ClockButton_UpdateTextStringsIfNecessary_Hook(LPVOID pThis, bool* param1) {
    Wh_Log(L">");

    g_updateTextStringThreadId = GetCurrentThreadId();
    g_getDateFormatExCounter = 0;

    unsigned int ret =
        ClockButton_UpdateTextStringsIfNecessary_Original(pThis, param1);

    g_updateTextStringThreadId = 0;

    if (g_settings.showSeconds || g_dataCollectionSession ||
        !g_webContentLoaded) {
        // Return the time-out value for the time of the next update.
        SYSTEMTIME time;
        GetLocalTime(&time);
        return 1000 - time.wMilliseconds;
    }

    return ret;
}

LPSIZE WINAPI ClockButton_CalculateMinimumSize_Hook(LPVOID pThis,
                                                    LPSIZE param1,
                                                    SIZE param2) {
    Wh_Log(L">");

    LPSIZE ret =
        ClockButton_CalculateMinimumSize_Original(pThis, param1, param2);

    HWND hWnd = *((HWND*)pThis + 1);
    UINT windowDpi = pGetDpiForWindow ? pGetDpiForWindow(hWnd) : 0;

    if (g_settings.width > 0) {
        ret->cx = g_settings.width;
        if (windowDpi) {
            ret->cx = MulDiv(ret->cx, windowDpi, 96);
        }
    }

    if (g_settings.height > 0) {
        ret->cy = g_settings.height;
        if (windowDpi) {
            ret->cy = MulDiv(ret->cy, windowDpi, 96);
        }
    }

    return ret;
}

int WINAPI ClockButton_GetTextSpacingForOrientation_Hook(LPVOID pThis,
                                                         bool horizontal,
                                                         DWORD dwSiteHeight,
                                                         DWORD dwLine1Height,
                                                         DWORD dwLine2Height,
                                                         DWORD dwLine3Height) {
    Wh_Log(L">");

    int textSpacing = g_settings.textSpacing;
    if (textSpacing == 0) {
        return ClockButton_GetTextSpacingForOrientation_Original(
            pThis, horizontal, dwSiteHeight, dwLine1Height, dwLine2Height,
            dwLine3Height);
    }

    // 1 line.
    if (dwLine3Height == 0 && dwLine2Height == 0) {
        return 0;
    }

    // Since 0 is reserved, shift negative values so that any spacing value can
    // be used.
    if (textSpacing < 0) {
        textSpacing++;
    }

    HWND hWnd = *((HWND*)pThis + 1);
    UINT windowDpi = pGetDpiForWindow ? pGetDpiForWindow(hWnd) : 0;

    if (windowDpi) {
        return MulDiv(textSpacing, windowDpi, 96);
    }

    return textSpacing;
}

int WINAPI GetTimeFormatEx_Hook_Win10(LPCWSTR lpLocaleName,
                                      DWORD dwFlags,
                                      CONST SYSTEMTIME* lpTime,
                                      LPCWSTR lpFormat,
                                      LPWSTR lpTimeStr,
                                      int cchTime) {
    if (g_updateTextStringThreadId == GetCurrentThreadId()) {
        g_formatTime = *lpTime;
        g_formatIndex++;

        if (wcscmp(g_settings.topLine, L"-") != 0) {
            return FormatLine(lpTimeStr, cchTime, g_settings.topLine.get()) + 1;
        }
    }

    int ret = GetTimeFormatEx_Original(lpLocaleName, dwFlags, lpTime, lpFormat,
                                       lpTimeStr, cchTime);

    return ret;
}

int WINAPI GetDateFormatEx_Hook_Win10(LPCWSTR lpLocaleName,
                                      DWORD dwFlags,
                                      CONST SYSTEMTIME* lpDate,
                                      LPCWSTR lpFormat,
                                      LPWSTR lpDateStr,
                                      int cchDate,
                                      LPCWSTR lpCalendar) {
    if (g_updateTextStringThreadId == GetCurrentThreadId()) {
        g_getDateFormatExCounter++;
        PCWSTR format = g_getDateFormatExCounter > 1 ? g_settings.middleLine
                                                     : g_settings.bottomLine;
        if (wcscmp(format, L"-") != 0) {
            return FormatLine(lpDateStr, cchDate, format) + 1;
        }
    }

    int ret = GetDateFormatEx_Original(lpLocaleName, dwFlags, lpDate, lpFormat,
                                       lpDateStr, cchDate, lpCalendar);

    return ret;
}

int WINAPI GetDateFormatW_Hook_Win10(LCID Locale,
                                     DWORD dwFlags,
                                     CONST SYSTEMTIME* lpDate,
                                     LPCWSTR lpFormat,
                                     LPWSTR lpDateStr,
                                     int cchDate) {
    if (g_getTooltipTextThreadId == GetCurrentThreadId() &&
        !g_getTooltipTextBuffer) {
        g_getTooltipTextBuffer = lpDateStr;
        g_getTooltipTextBufferSize = cchDate;
    }

    int ret = GetDateFormatW_Original(Locale, dwFlags, lpDate, lpFormat,
                                      lpDateStr, cchDate);

    return ret;
}

#pragma endregion Win10Hooks

VS_FIXEDFILEINFO* GetModuleVersionInfo(HMODULE hModule, UINT* puPtrLen) {
    void* pFixedFileInfo = nullptr;
    UINT uPtrLen = 0;

    HRSRC hResource =
        FindResource(hModule, MAKEINTRESOURCE(VS_VERSION_INFO), RT_VERSION);
    if (hResource) {
        HGLOBAL hGlobal = LoadResource(hModule, hResource);
        if (hGlobal) {
            void* pData = LockResource(hGlobal);
            if (pData) {
                if (!VerQueryValue(pData, L"\\", &pFixedFileInfo, &uPtrLen) ||
                    uPtrLen == 0) {
                    pFixedFileInfo = nullptr;
                    uPtrLen = 0;
                }
            }
        }
    }

    if (puPtrLen) {
        *puPtrLen = uPtrLen;
    }

    return (VS_FIXEDFILEINFO*)pFixedFileInfo;
}

WinVersion GetExplorerVersion() {
    VS_FIXEDFILEINFO* fixedFileInfo = GetModuleVersionInfo(nullptr, nullptr);
    if (!fixedFileInfo) {
        return WinVersion::Unsupported;
    }

    WORD major = HIWORD(fixedFileInfo->dwFileVersionMS);
    WORD minor = LOWORD(fixedFileInfo->dwFileVersionMS);
    WORD build = HIWORD(fixedFileInfo->dwFileVersionLS);
    WORD qfe = LOWORD(fixedFileInfo->dwFileVersionLS);

    Wh_Log(L"Version: %u.%u.%u.%u", major, minor, build, qfe);

    switch (major) {
        case 10:
            if (build < 22000) {
                return WinVersion::Win10;
            } else if (build <= 22000) {
                return WinVersion::Win11;
            } else if (build < 26100) {
                return WinVersion::Win11_22H2;
            } else {
                return WinVersion::Win11_24H2;
            }
            break;
    }

    return WinVersion::Unsupported;
}

struct EXPLORER_PATCHER_HOOK {
    PCSTR symbol;
    void** pOriginalFunction;
    void* hookFunction = nullptr;
    bool optional = false;

    template <typename Prototype>
    EXPLORER_PATCHER_HOOK(
        PCSTR symbol,
        Prototype** originalFunction,
        std::type_identity_t<Prototype*> hookFunction = nullptr,
        bool optional = false)
        : symbol(symbol),
          pOriginalFunction(reinterpret_cast<void**>(originalFunction)),
          hookFunction(reinterpret_cast<void*>(hookFunction)),
          optional(optional) {}
};

bool HookExplorerPatcherSymbols(HMODULE explorerPatcherModule) {
    if (g_explorerPatcherInitialized.exchange(true)) {
        return true;
    }

    if (g_winVersion >= WinVersion::Win11) {
        g_winVersion = WinVersion::Win10;
    }

    EXPLORER_PATCHER_HOOK hooks[] = {
        {R"(?UpdateTextStringsIfNecessary@ClockButton@@AEAAIPEA_N@Z)",
         &ClockButton_UpdateTextStringsIfNecessary_Original,
         ClockButton_UpdateTextStringsIfNecessary_Hook},
        {R"(?CalculateMinimumSize@ClockButton@@QEAA?AUtagSIZE@@U2@@Z)",
         &ClockButton_CalculateMinimumSize_Original,
         ClockButton_CalculateMinimumSize_Hook},
        {R"(?GetTextSpacingForOrientation@ClockButton@@AEAAH_NHHHH@Z)",
         &ClockButton_GetTextSpacingForOrientation_Original,
         ClockButton_GetTextSpacingForOrientation_Hook},
        {R"(?v_GetTooltipText@ClockButton@@MEAAJPEAPEAUHINSTANCE__@@PEAPEAGPEAG_K@Z)",
         &ClockButton_v_GetTooltipText_Original,
         ClockButton_v_GetTooltipText_Hook, true},
        {R"(?v_OnDisplayStateChange@ClockButton@@MEAAX_N@Z)",
         &ClockButton_v_OnDisplayStateChange_Original},
    };

    bool succeeded = true;

    for (const auto& hook : hooks) {
        void* ptr = (void*)GetProcAddress(explorerPatcherModule, hook.symbol);
        if (!ptr) {
            Wh_Log(L"ExplorerPatcher symbol%s doesn't exist: %S",
                   hook.optional ? L" (optional)" : L"", hook.symbol);
            if (!hook.optional) {
                succeeded = false;
            }
            continue;
        }

        if (hook.hookFunction) {
            Wh_SetFunctionHook(ptr, hook.hookFunction, hook.pOriginalFunction);
        } else {
            *hook.pOriginalFunction = ptr;
        }
    }

    if (!succeeded) {
        Wh_Log(L"HookExplorerPatcherSymbols failed");
    } else if (g_initialized) {
        Wh_ApplyHookOperations();
    }

    return succeeded;
}

bool IsExplorerPatcherModule(HMODULE module) {
    WCHAR moduleFilePath[MAX_PATH];
    switch (
        GetModuleFileName(module, moduleFilePath, ARRAYSIZE(moduleFilePath))) {
        case 0:
        case ARRAYSIZE(moduleFilePath):
            return false;
    }

    PCWSTR moduleFileName = wcsrchr(moduleFilePath, L'\\');
    if (!moduleFileName) {
        return false;
    }

    moduleFileName++;

    if (_wcsnicmp(L"ep_taskbar.", moduleFileName, sizeof("ep_taskbar.") - 1) ==
        0) {
        Wh_Log(L"ExplorerPatcher taskbar module: %s", moduleFileName);
        return true;
    }

    return false;
}

bool HandleLoadedExplorerPatcher() {
    HMODULE hMods[1024];
    DWORD cbNeeded;
    if (EnumProcessModules(GetCurrentProcess(), hMods, sizeof(hMods),
                           &cbNeeded)) {
        for (size_t i = 0; i < cbNeeded / sizeof(HMODULE); i++) {
            if (IsExplorerPatcherModule(hMods[i])) {
                return HookExplorerPatcherSymbols(hMods[i]);
            }
        }
    }

    return true;
}

void HandleLoadedModuleIfExplorerPatcher(HMODULE module) {
    if (module && !((ULONG_PTR)module & 3) && !g_explorerPatcherInitialized) {
        if (IsExplorerPatcherModule(module)) {
            HookExplorerPatcherSymbols(module);
        }
    }
}

bool HookWin10TaskbarSymbols() {
    WindhawkUtils::SYMBOL_HOOK explorerExeHooks[] = {
        {
            {LR"(private: unsigned int __cdecl ClockButton::UpdateTextStringsIfNecessary(bool *))"},
            &ClockButton_UpdateTextStringsIfNecessary_Original,
            ClockButton_UpdateTextStringsIfNecessary_Hook,
        },
        {
            {LR"(public: struct tagSIZE __cdecl ClockButton::CalculateMinimumSize(struct tagSIZE))"},
            &ClockButton_CalculateMinimumSize_Original,
            ClockButton_CalculateMinimumSize_Hook,
        },
        {
            {LR"(private: int __cdecl ClockButton::GetTextSpacingForOrientation(bool,int,int,int,int))"},
            &ClockButton_GetTextSpacingForOrientation_Original,
            ClockButton_GetTextSpacingForOrientation_Hook,
        },
        {
            {LR"(protected: virtual long __cdecl ClockButton::v_GetTooltipText(struct HINSTANCE__ * *,unsigned short * *,unsigned short *,unsigned __int64))"},
            &ClockButton_v_GetTooltipText_Original,
            ClockButton_v_GetTooltipText_Hook,
            true,
        },
        {
            {LR"(protected: virtual void __cdecl ClockButton::v_OnDisplayStateChange(bool))"},
            &ClockButton_v_OnDisplayStateChange_Original,
        },
    };

    if (!HookSymbols(GetModuleHandle(nullptr), explorerExeHooks,
                     ARRAYSIZE(explorerExeHooks))) {
        Wh_Log(L"HookSymbols failed");
        return false;
    }

    return true;
}

bool HookTaskbarViewDllSymbols(HMODULE module) {
    // Taskbar.View.dll, ExplorerExtensions.dll
    WindhawkUtils::SYMBOL_HOOK symbolHooks[] =  //
        {
            {
                {LR"(private: void __cdecl winrt::SystemTray::implementation::ClockSystemTrayIconDataModel::RefreshIcon(class SystemTrayTelemetry::ClockUpdate &))"},
                &ClockSystemTrayIconDataModel_RefreshIcon_Original,
                ClockSystemTrayIconDataModel_RefreshIcon_Hook,
            },
            {
                {LR"(private: void __cdecl winrt::SystemTray::implementation::ClockSystemTrayIconDataModel2::RefreshIcon(class SystemTrayTelemetry::ClockUpdate &))"},
                &ClockSystemTrayIconDataModel2_RefreshIcon_Original,
                ClockSystemTrayIconDataModel2_RefreshIcon_Hook,
                true,  // Added with feature flag 38762814
            },
            {
                {LR"(private: struct winrt::hstring __cdecl winrt::SystemTray::implementation::ClockSystemTrayIconDataModel::GetTimeToolTipString(struct _SYSTEMTIME const &,struct _SYSTEMTIME const &,class SystemTrayTelemetry::ClockUpdate &))"},
                &ClockSystemTrayIconDataModel_GetTimeToolTipString_Original,
                ClockSystemTrayIconDataModel_GetTimeToolTipString_Hook,
                true,
            },
            {
                {LR"(private: struct winrt::hstring __cdecl winrt::SystemTray::implementation::ClockSystemTrayIconDataModel2::GetTimeToolTipString(struct _SYSTEMTIME const &,struct _SYSTEMTIME const &,class SystemTrayTelemetry::ClockUpdate &))"},
                &ClockSystemTrayIconDataModel2_GetTimeToolTipString_Original,
                ClockSystemTrayIconDataModel2_GetTimeToolTipString_Hook,
                true,  // Added with feature flag 38762814
            },
            {
                {LR"(private: struct winrt::hstring __cdecl winrt::SystemTray::implementation::ClockSystemTrayIconDataModel::GetTimeToolTipString2(struct _SYSTEMTIME const &,struct _SYSTEMTIME const &,class SystemTrayTelemetry::ClockUpdate &))"},
                &ClockSystemTrayIconDataModel_GetTimeToolTipString2_Original,
                ClockSystemTrayIconDataModel_GetTimeToolTipString2_Hook,
                true,
            },
            {
                {LR"(private: struct winrt::hstring __cdecl winrt::SystemTray::implementation::ClockSystemTrayIconDataModel2::GetTimeToolTipString2(struct _SYSTEMTIME const &,struct _SYSTEMTIME const &,class SystemTrayTelemetry::ClockUpdate &))"},
                &ClockSystemTrayIconDataModel2_GetTimeToolTipString2_Original,
                ClockSystemTrayIconDataModel2_GetTimeToolTipString2_Hook,
                true,  // Added with feature flag 38762814
            },
            {
                {LR"(public: void __cdecl winrt::SystemTray::implementation::DateTimeIconContent::OnApplyTemplate(void))"},
                &DateTimeIconContent_OnApplyTemplate_Original,
                DateTimeIconContent_OnApplyTemplate_Hook,
                true,
            },
            {
                {LR"(public: virtual int __cdecl winrt::impl::produce<struct winrt::SystemTray::implementation::BadgeIconContent,struct winrt::SystemTray::IBadgeIconContent>::get_ViewModel(void * *))"},
                &BadgeIconContent_get_ViewModel_Original,
                BadgeIconContent_get_ViewModel_Hook,
                true,
            },
            {
                {LR"(private: struct winrt::hstring __cdecl winrt::SystemTray::implementation::ClockSystemTrayIconDataModel::GetTimeToolTipString(struct _SYSTEMTIME *,struct _TIME_DYNAMIC_ZONE_INFORMATION *,class SystemTrayTelemetry::ClockUpdate &))"},
                &ClockSystemTrayIconDataModel_GetTimeToolTipString_2_Original,
                ClockSystemTrayIconDataModel_GetTimeToolTipString_2_Hook,
                true,  // Until Windows 11 version 21H2.
            },
            {
                {LR"(public: int __cdecl winrt::impl::consume_Windows_Globalization_ICalendar<struct winrt::Windows::Globalization::ICalendar>::Second(void)const )"},
                &ICalendar_Second_Original,
                ICalendar_Second_Hook,
                true,  // Until Windows 11 version 21H2.
            },
            {
                {
                    LR"(public: static __cdecl winrt::Windows::System::Threading::ThreadPoolTimer::CreateTimer(struct winrt::Windows::System::Threading::TimerElapsedHandler const &,class std::chrono::duration<__int64,struct std::ratio<1,10000000> > const &))",
                    // Windows 11 21H2:
                    LR"(public: struct winrt::Windows::System::Threading::ThreadPoolTimer __cdecl winrt::impl::consume_Windows_System_Threading_IThreadPoolTimerStatics<struct winrt::Windows::System::Threading::IThreadPoolTimerStatics>::CreateTimer(struct winrt::Windows::System::Threading::TimerElapsedHandler const &,class std::chrono::duration<__int64,struct std::ratio<1,10000000> > const &)const )",
                },
                &ThreadPoolTimer_CreateTimer_Original,
                ThreadPoolTimer_CreateTimer_Hook,
                true,  // Only for more precise clock, see comment in the hook.
            },
            {
                {
                    LR"(public: __cdecl <lambda_b19cf72fe9674443383aa89d5c22450b>::operator()(struct winrt::Windows::System::Threading::IThreadPoolTimerStatics const &)const )",
                    // Windows 11 21H2:
                    LR"(public: struct winrt::Windows::System::Threading::ThreadPoolTimer __cdecl <lambda_b19cf72fe9674443383aa89d5c22450b>::operator()(struct winrt::Windows::System::Threading::IThreadPoolTimerStatics const &)const )",
                },
                &ThreadPoolTimer_CreateTimer_lambda_Original,
                ThreadPoolTimer_CreateTimer_lambda_Hook,
                true,  // Only for more precise clock, see comment in the hook.
            },
        };

    if (!HookSymbols(module, symbolHooks, ARRAYSIZE(symbolHooks))) {
        Wh_Log(L"HookSymbols failed");
        return false;
    }

    return true;
}

HMODULE GetTaskbarViewModuleHandle() {
    HMODULE module = GetModuleHandle(L"Taskbar.View.dll");
    if (!module) {
        module = GetModuleHandle(L"ExplorerExtensions.dll");
    }

    return module;
}

void HandleLoadedModuleIfTaskbarView(HMODULE module, LPCWSTR lpLibFileName) {
    if (g_winVersion >= WinVersion::Win11 && !g_taskbarViewDllLoaded &&
        GetTaskbarViewModuleHandle() == module &&
        !g_taskbarViewDllLoaded.exchange(true)) {
        Wh_Log(L"Loaded %s", lpLibFileName);

        if (HookTaskbarViewDllSymbols(module)) {
            Wh_ApplyHookOperations();
        }
    }
}

using LoadLibraryExW_t = decltype(&LoadLibraryExW);
LoadLibraryExW_t LoadLibraryExW_Original;
HMODULE WINAPI LoadLibraryExW_Hook(LPCWSTR lpLibFileName,
                                   HANDLE hFile,
                                   DWORD dwFlags) {
    HMODULE module = LoadLibraryExW_Original(lpLibFileName, hFile, dwFlags);
    if (module) {
        HandleLoadedModuleIfExplorerPatcher(module);
        HandleLoadedModuleIfTaskbarView(module, lpLibFileName);
    }

    return module;
}

void LoadSettings() {
    g_settings.showSeconds = Wh_GetIntSetting(L"ShowSeconds");
    g_settings.timeFormat = StringSetting::make(L"TimeFormat");
    g_settings.dateFormat = StringSetting::make(L"DateFormat");
    g_settings.weekdayFormat = StringSetting::make(L"WeekdayFormat");

    g_settings.weekdayFormatCustom.clear();
    if (wcscmp(g_settings.weekdayFormat, L"custom") == 0) {
        StringSetting weekdayFormatCustom =
            StringSetting::make(L"WeekdayFormatCustom");
        for (const auto weekdayName :
             SplitStringView(weekdayFormatCustom.get(), L",")) {
            g_settings.weekdayFormatCustom.emplace_back(
                TrimStringView(weekdayName));
        }
        g_settings.weekdayFormatCustom.resize(7);
    }

    g_settings.topLine = StringSetting::make(L"TopLine");
    g_settings.bottomLine = StringSetting::make(L"BottomLine");
    g_settings.middleLine = StringSetting::make(L"MiddleLine");
    g_settings.tooltipLine = StringSetting::make(L"TooltipLine");
    g_settings.width = Wh_GetIntSetting(L"Width");
    g_settings.height = Wh_GetIntSetting(L"Height");
    g_settings.maxWidth = Wh_GetIntSetting(L"MaxWidth");
    g_settings.textSpacing = Wh_GetIntSetting(L"TextSpacing");

    g_settings.dataCollection.networkMetricsFormat = NetworkMetricsFormat::mbs;
    StringSetting networkMetricsFormat =
        StringSetting::make(L"DataCollection.NetworkMetricsFormat");
    if (wcscmp(networkMetricsFormat, L"mbsNumberOnly") == 0) {
        g_settings.dataCollection.networkMetricsFormat =
            NetworkMetricsFormat::mbsNumberOnly;
    } else if (wcscmp(networkMetricsFormat, L"mbsDynamic") == 0) {
        g_settings.dataCollection.networkMetricsFormat =
            NetworkMetricsFormat::mbsDynamic;
    } else if (wcscmp(networkMetricsFormat, L"mbits") == 0) {
        g_settings.dataCollection.networkMetricsFormat =
            NetworkMetricsFormat::mbits;
    } else if (wcscmp(networkMetricsFormat, L"mbitsNumberOnly") == 0) {
        g_settings.dataCollection.networkMetricsFormat =
            NetworkMetricsFormat::mbitsNumberOnly;
    } else if (wcscmp(networkMetricsFormat, L"mbitsDynamic") == 0) {
        g_settings.dataCollection.networkMetricsFormat =
            NetworkMetricsFormat::mbitsDynamic;
    }

    g_settings.dataCollection.networkMetricsFixedDecimals =
        Wh_GetIntSetting(L"DataCollection.NetworkMetricsFixedDecimals");

    g_settings.dataCollection.percentageFormat =
        PercentageFormat::spacePaddingAndSymbol;
    StringSetting percentageFormat =
        StringSetting::make(L"DataCollection.PercentageFormat");
    if (wcscmp(percentageFormat, L"spacePadding") == 0) {
        g_settings.dataCollection.percentageFormat =
            PercentageFormat::spacePadding;
    } else if (wcscmp(percentageFormat, L"zeroPadding") == 0) {
        g_settings.dataCollection.percentageFormat =
            PercentageFormat::zeroPadding;
    } else if (wcscmp(percentageFormat, L"noPadding") == 0) {
        g_settings.dataCollection.percentageFormat =
            PercentageFormat::noPadding;
    }

    g_settings.dataCollection.updateInterval =
        Wh_GetIntSetting(L"DataCollection.UpdateInterval");

    g_settings.webContentWeatherLocation =
        StringSetting::make(L"WebContentWeatherLocation");
    g_settings.webContentWeatherFormat =
        StringSetting::make(L"WebContentWeatherFormat");

    g_settings.webContentWeatherUnits = WebContentWeatherUnits::autoDetect;
    StringSetting webContentWeatherUnits =
        StringSetting::make(L"WebContentWeatherUnits");
    if (wcscmp(webContentWeatherUnits, L"uscs") == 0) {
        g_settings.webContentWeatherUnits = WebContentWeatherUnits::uscs;
    } else if (wcscmp(webContentWeatherUnits, L"metric") == 0) {
        g_settings.webContentWeatherUnits = WebContentWeatherUnits::metric;
    } else if (wcscmp(webContentWeatherUnits, L"metricMsWind") == 0) {
        g_settings.webContentWeatherUnits =
            WebContentWeatherUnits::metricMsWind;
    }

    g_settings.webContentsItems.clear();
    for (int i = 0;; i++) {
        WebContentsSettings item;
        item.url = StringSetting::make(L"WebContentsItems[%d].Url", i);
        if (*item.url == '\0') {
            break;
        }

        item.blockStart =
            StringSetting::make(L"WebContentsItems[%d].BlockStart", i);
        item.start = StringSetting::make(L"WebContentsItems[%d].Start", i);
        item.end = StringSetting::make(L"WebContentsItems[%d].End", i);

        item.contentMode = ContentMode::plainText;
        StringSetting contentMode =
            StringSetting::make(L"WebContentsItems[%d].ContentMode", i);
        if (wcscmp(contentMode, L"xml") == 0) {
            item.contentMode = ContentMode::xml;
        } else if (wcscmp(contentMode, L"html") == 0) {
            item.contentMode = ContentMode::html;
        } else if (wcscmp(contentMode, L"xmlHtml") == 0) {
            item.contentMode = ContentMode::xmlHtml;
        }

        for (int j = 0;; j++) {
            StringSetting search = StringSetting::make(
                L"WebContentsItems[%d].SearchReplace[%d].Search", i, j);
            if (*search == '\0') {
                break;
            }

            StringSetting replace = StringSetting::make(
                L"WebContentsItems[%d].SearchReplace[%d].Replace", i, j);

            try {
                item.searchReplace.push_back(
                    {std::wregex(search), std::wstring(replace)});
            } catch (const std::exception& ex) {
                Wh_Log(L"Invalid search pattern \"%s\": %hs", search.get(),
                       ex.what());
            }
        }

        item.maxLength = Wh_GetIntSetting(L"WebContentsItems[%d].MaxLength", i);

        g_settings.webContentsItems.push_back(std::move(item));
    }

    g_settings.webContentsUpdateInterval =
        Wh_GetIntSetting(L"WebContentsUpdateInterval");

    g_timeZoneInformation.clear();
    g_timeFormattedTz.clear();
    g_dateFormattedTz.clear();
    g_weekdayFormattedTz.clear();

    g_settings.timeZones.clear();
    for (int i = 0;; i++) {
        StringSetting timeZone = StringSetting::make(L"TimeZones[%d]", i);
        if (*timeZone == '\0') {
            break;
        }

        g_timeZoneInformation.emplace_back(GetTimeZoneInformation(timeZone));
        g_timeFormattedTz.emplace_back();
        g_dateFormattedTz.emplace_back();
        g_weekdayFormattedTz.emplace_back();

        g_settings.timeZones.push_back(std::move(timeZone));
    }

    g_settings.timeStyle.hidden = Wh_GetIntSetting(L"TimeStyle.Hidden");
    g_settings.timeStyle.textColor =
        StringSetting::make(L"TimeStyle.TextColor");
    g_settings.timeStyle.textAlignment =
        StringSetting::make(L"TimeStyle.TextAlignment");
    g_settings.timeStyle.fontSize = Wh_GetIntSetting(L"TimeStyle.FontSize");
    g_settings.timeStyle.fontFamily =
        StringSetting::make(L"TimeStyle.FontFamily");
    g_settings.timeStyle.fontWeight =
        StringSetting::make(L"TimeStyle.FontWeight");
    g_settings.timeStyle.fontStyle =
        StringSetting::make(L"TimeStyle.FontStyle");
    g_settings.timeStyle.fontStretch =
        StringSetting::make(L"TimeStyle.FontStretch");
    g_settings.timeStyle.characterSpacing =
        Wh_GetIntSetting(L"TimeStyle.CharacterSpacing");

    g_settings.dateStyle.hidden = Wh_GetIntSetting(L"DateStyle.Hidden");
    g_settings.dateStyle.textColor =
        StringSetting::make(L"DateStyle.TextColor");
    g_settings.dateStyle.textAlignment =
        StringSetting::make(L"DateStyle.TextAlignment");
    g_settings.dateStyle.fontSize = Wh_GetIntSetting(L"DateStyle.FontSize");
    g_settings.dateStyle.fontFamily =
        StringSetting::make(L"DateStyle.FontFamily");
    g_settings.dateStyle.fontWeight =
        StringSetting::make(L"DateStyle.FontWeight");
    g_settings.dateStyle.fontStyle =
        StringSetting::make(L"DateStyle.FontStyle");
    g_settings.dateStyle.fontStretch =
        StringSetting::make(L"DateStyle.FontStretch");
    g_settings.dateStyle.characterSpacing =
        Wh_GetIntSetting(L"DateStyle.CharacterSpacing");

    g_clockElementStyleEnabled =
        (g_settings.maxWidth || g_settings.textSpacing ||
         g_settings.timeStyle.hidden || *g_settings.timeStyle.textColor ||
         *g_settings.timeStyle.textAlignment || g_settings.timeStyle.fontSize ||
         *g_settings.timeStyle.fontFamily || *g_settings.timeStyle.fontWeight ||
         *g_settings.timeStyle.fontStyle || *g_settings.timeStyle.fontStretch ||
         g_settings.timeStyle.characterSpacing || g_settings.dateStyle.hidden ||
         *g_settings.dateStyle.textColor ||
         *g_settings.dateStyle.textAlignment || g_settings.dateStyle.fontSize ||
         *g_settings.dateStyle.fontFamily || *g_settings.dateStyle.fontWeight ||
         *g_settings.dateStyle.fontStyle || *g_settings.dateStyle.fontStretch ||
         g_settings.dateStyle.characterSpacing);
    g_clockElementStyleIndex++;

    g_settings.oldTaskbarOnWin11 = Wh_GetIntSetting(L"oldTaskbarOnWin11");

    // Kept for compatibility with old settings:
    if (IsStrInDateTimePatternSettings(L"%web%") ||
        IsStrInDateTimePatternSettings(L"%web_full%")) {
        g_settings.webContentsUrl = StringSetting::make(L"WebContentsUrl");
        g_settings.webContentsBlockStart =
            StringSetting::make(L"WebContentsBlockStart");
        g_settings.webContentsStart = StringSetting::make(L"WebContentsStart");
        g_settings.webContentsEnd = StringSetting::make(L"WebContentsEnd");
        g_settings.webContentsMaxLength =
            Wh_GetIntSetting(L"WebContentsMaxLength");
    }
}

HWND FindCurrentProcessTaskbarWnd() {
    HWND hTaskbarWnd = nullptr;

    EnumWindows(
        [](HWND hWnd, LPARAM lParam) -> BOOL {
            DWORD dwProcessId;
            WCHAR className[32];
            if (GetWindowThreadProcessId(hWnd, &dwProcessId) &&
                dwProcessId == GetCurrentProcessId() &&
                GetClassName(hWnd, className, ARRAYSIZE(className)) &&
                _wcsicmp(className, L"Shell_TrayWnd") == 0) {
                *reinterpret_cast<HWND*>(lParam) = hWnd;
                return FALSE;
            }
            return TRUE;
        },
        reinterpret_cast<LPARAM>(&hTaskbarWnd));

    return hTaskbarWnd;
}

void ApplySettingsWin11() {
    HWND hTaskbarWnd = FindCurrentProcessTaskbarWnd();
    if (!hTaskbarWnd) {
        return;
    }

    // Touch a registry value to trigger a watcher for a clock update. Do so
    // only if the current explorer.exe instance owns the taskbar.
    constexpr WCHAR kTempValueName[] =
        L"_temp_windhawk_taskbar-taskbar-clock-customization";
    HKEY hSubKey;
    LONG result = RegOpenKeyEx(HKEY_CURRENT_USER,
                               L"Control Panel\\TimeDate\\AdditionalClocks", 0,
                               KEY_WRITE, &hSubKey);
    if (result == ERROR_SUCCESS) {
        if (RegSetValueEx(hSubKey, kTempValueName, 0, REG_SZ, (const BYTE*)L"",
                          sizeof(WCHAR)) != ERROR_SUCCESS) {
            Wh_Log(L"Failed to create temp value");
        } else if (RegDeleteValue(hSubKey, kTempValueName) != ERROR_SUCCESS) {
            Wh_Log(L"Failed to remove temp value");
        }

        RegCloseKey(hSubKey);
    } else {
        Wh_Log(L"Failed to open subkey: %d", result);
    }
}

void ApplySettingsWin10() {
    HWND hTaskbarWnd = FindCurrentProcessTaskbarWnd();
    if (!hTaskbarWnd) {
        return;
    }

    // Apply size.
    RECT rc;
    if (GetClientRect(hTaskbarWnd, &rc)) {
        SendMessage(hTaskbarWnd, WM_SIZE, SIZE_RESTORED,
                    MAKELPARAM(rc.right - rc.left, rc.bottom - rc.top));
    }

    // Apply text.
    HWND hTrayNotifyWnd =
        FindWindowEx(hTaskbarWnd, nullptr, L"TrayNotifyWnd", nullptr);
    if (hTrayNotifyWnd) {
        HWND hTrayClockWWnd =
            FindWindowEx(hTrayNotifyWnd, nullptr, L"TrayClockWClass", nullptr);
        if (hTrayClockWWnd) {
            LONG_PTR lpTrayClockWClassLongPtr =
                GetWindowLongPtr(hTrayClockWWnd, 0);
            if (lpTrayClockWClassLongPtr) {
                ClockButton_v_OnDisplayStateChange_Original(
                    (LPVOID)lpTrayClockWClassLongPtr, true);
            }
        }
    }

    DWORD taskbarThreadId = GetWindowThreadProcessId(hTaskbarWnd, nullptr);
    if (!taskbarThreadId) {
        return;
    }

    auto enumWindowsProc = [](HWND hWnd) {
        WCHAR szClassName[32];
        if (!GetClassName(hWnd, szClassName, ARRAYSIZE(szClassName)) ||
            _wcsicmp(szClassName, L"Shell_SecondaryTrayWnd") != 0) {
            return;
        }

        // Apply size.
        RECT rc;
        if (GetClientRect(hWnd, &rc)) {
            WINDOWPOS windowpos;
            windowpos.hwnd = hWnd;
            windowpos.hwndInsertAfter = nullptr;
            windowpos.x = 0;
            windowpos.y = 0;
            windowpos.cx = rc.right - rc.left;
            windowpos.cy = rc.bottom - rc.top;
            windowpos.flags = SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE;

            SendMessage(hWnd, WM_WINDOWPOSCHANGED, 0, (LPARAM)&windowpos);
        }

        // Apply text.
        HWND hClockButtonWnd =
            FindWindowEx(hWnd, nullptr, L"ClockButton", nullptr);
        if (hClockButtonWnd) {
            LONG_PTR lpClockButtonLongPtr =
                GetWindowLongPtr(hClockButtonWnd, 0);
            if (lpClockButtonLongPtr) {
                ClockButton_v_OnDisplayStateChange_Original(
                    (LPVOID)lpClockButtonLongPtr, true);
            }
        }
    };

    EnumThreadWindows(
        taskbarThreadId,
        [](HWND hWnd, LPARAM lParam) -> BOOL {
            auto& proc = *reinterpret_cast<decltype(enumWindowsProc)*>(lParam);
            proc(hWnd);
            return TRUE;
        },
        reinterpret_cast<LPARAM>(&enumWindowsProc));
}

void ApplySettings() {
    if (g_winVersion >= WinVersion::Win11) {
        ApplySettingsWin11();
    } else {
        ApplySettingsWin10();
    }
}

BOOL Wh_ModInit() {
    Wh_Log(L">");

    if (HMODULE hUser32 = LoadLibraryEx(L"user32.dll", nullptr,
                                        LOAD_LIBRARY_SEARCH_SYSTEM32)) {
        pGetDpiForWindow =
            (GetDpiForWindow_t)GetProcAddress(hUser32, "GetDpiForWindow");
    }

    if (HMODULE hKernel32 = LoadLibraryEx(L"kernel32.dll", nullptr,
                                          LOAD_LIBRARY_SEARCH_SYSTEM32)) {
        pSystemTimeToTzSpecificLocalTimeEx =
            (SystemTimeToTzSpecificLocalTimeEx_t)GetProcAddress(
                hKernel32, "SystemTimeToTzSpecificLocalTimeEx");
    }

    if (HMODULE hAdvapi32 = LoadLibraryEx(L"advapi32.dll", nullptr,
                                          LOAD_LIBRARY_SEARCH_SYSTEM32)) {
        pEnumDynamicTimeZoneInformation =
            (EnumDynamicTimeZoneInformation_t)GetProcAddress(
                hAdvapi32, "EnumDynamicTimeZoneInformation");
    }

    LoadSettings();

    g_winVersion = GetExplorerVersion();
    if (g_winVersion == WinVersion::Unsupported) {
        Wh_Log(L"Unsupported Windows version");
        return FALSE;
    }

    if (g_settings.oldTaskbarOnWin11) {
        bool hasWin10Taskbar = g_winVersion < WinVersion::Win11_24H2;

        if (g_winVersion >= WinVersion::Win11) {
            g_winVersion = WinVersion::Win10;
        }

        if (hasWin10Taskbar && !HookWin10TaskbarSymbols()) {
            return FALSE;
        }
    } else if (g_winVersion >= WinVersion::Win11) {
        if (HMODULE taskbarViewModule = GetTaskbarViewModuleHandle()) {
            g_taskbarViewDllLoaded = true;
            if (!HookTaskbarViewDllSymbols(taskbarViewModule)) {
                return FALSE;
            }
        } else {
            Wh_Log(L"Taskbar view module not loaded yet");
        }
    } else {
        if (!HookWin10TaskbarSymbols()) {
            return FALSE;
        }
    }

    if (!HandleLoadedExplorerPatcher()) {
        Wh_Log(L"HandleLoadedExplorerPatcher failed");
        return FALSE;
    }

    HMODULE kernelBaseModule = GetModuleHandle(L"kernelbase.dll");
    auto pKernelBaseLoadLibraryExW = (decltype(&LoadLibraryExW))GetProcAddress(
        kernelBaseModule, "LoadLibraryExW");
    WindhawkUtils::Wh_SetFunctionHookT(pKernelBaseLoadLibraryExW,
                                       LoadLibraryExW_Hook,
                                       &LoadLibraryExW_Original);

    // Must use GetProcAddress for the functions below, otherwise the stubs in
    // kernel32.dll are being hooked.
    auto pGetTimeFormatEx = (decltype(&GetTimeFormatEx))GetProcAddress(
        kernelBaseModule, "GetTimeFormatEx");
    if (!pGetTimeFormatEx) {
        return FALSE;
    }

    auto pGetDateFormatEx = (decltype(&GetDateFormatEx))GetProcAddress(
        kernelBaseModule, "GetDateFormatEx");
    if (!pGetDateFormatEx) {
        return FALSE;
    }

    if (g_winVersion <= WinVersion::Win10) {
        WindhawkUtils::Wh_SetFunctionHookT(pGetTimeFormatEx,
                                           GetTimeFormatEx_Hook_Win10,
                                           &GetTimeFormatEx_Original);
        WindhawkUtils::Wh_SetFunctionHookT(pGetDateFormatEx,
                                           GetDateFormatEx_Hook_Win10,
                                           &GetDateFormatEx_Original);

        auto pGetDateFormatW = (decltype(&GetDateFormatW))GetProcAddress(
            kernelBaseModule, "GetDateFormatW");
        if (pGetDateFormatW) {
            WindhawkUtils::Wh_SetFunctionHookT(pGetDateFormatW,
                                               GetDateFormatW_Hook_Win10,
                                               &GetDateFormatW_Original);
        }
    } else {
        if (g_winVersion >= WinVersion::Win11_22H2) {
            auto pGetLocalTime = (decltype(&GetLocalTime))GetProcAddress(
                kernelBaseModule, "GetLocalTime");
            if (!pGetLocalTime) {
                return FALSE;
            }

            WindhawkUtils::Wh_SetFunctionHookT(
                pGetLocalTime, GetLocalTime_Hook_Win11, &GetLocalTime_Original);
        }

        WindhawkUtils::Wh_SetFunctionHookT(pGetTimeFormatEx,
                                           GetTimeFormatEx_Hook_Win11,
                                           &GetTimeFormatEx_Original);
        WindhawkUtils::Wh_SetFunctionHookT(pGetDateFormatEx,
                                           GetDateFormatEx_Hook_Win11,
                                           &GetDateFormatEx_Original);
        WindhawkUtils::Wh_SetFunctionHookT(SendMessageW, SendMessageW_Hook,
                                           &SendMessageW_Original);
    }

    g_initialized = true;

    return TRUE;
}

void Wh_ModAfterInit() {
    Wh_Log(L">");

    if (g_winVersion >= WinVersion::Win11 && !g_taskbarViewDllLoaded) {
        if (HMODULE taskbarViewModule = GetTaskbarViewModuleHandle()) {
            if (!g_taskbarViewDllLoaded.exchange(true)) {
                Wh_Log(L"Got Taskbar.View.dll");

                if (HookTaskbarViewDllSymbols(taskbarViewModule)) {
                    Wh_ApplyHookOperations();
                }
            }
        }
    }

    // Try again in case there's a race between the previous attempt and the
    // LoadLibraryExW hook.
    if (!g_explorerPatcherInitialized) {
        HandleLoadedExplorerPatcher();
    }

    WebContentUpdateThreadInit();
    DataCollectionSessionInit();

    ApplySettings();
}

void Wh_ModBeforeUninit() {
    Wh_Log(L">");

    if (g_winVersion >= WinVersion::Win11 &&
        g_clockElementStyleEnabled.exchange(false)) {
        DWORD styleIndex = ++g_clockElementStyleIndex;

        ApplySettings();

        // Wait for styles to be restored.
        for (int i = 0; i < 20; i++) {
            bool allRestored = true;
            for (const auto& data : g_clockElementStyleData) {
                if (data.styleIndex < styleIndex) {
                    allRestored = false;
                    break;
                }
            }

            if (allRestored) {
                break;
            }

            Sleep(100);
        }
    }
}

void Wh_ModUninit() {
    Wh_Log(L">");

    WebContentUpdateThreadUninit();
    DataCollectionSessionUninit();

    ApplySettings();
}

BOOL Wh_ModSettingsChanged(BOOL* bReload) {
    Wh_Log(L">");

    WebContentUpdateThreadUninit();
    DataCollectionSessionUninit();

    bool prevOldTaskbarOnWin11 = g_settings.oldTaskbarOnWin11;

    LoadSettings();

    *bReload = g_settings.oldTaskbarOnWin11 != prevOldTaskbarOnWin11;
    if (*bReload) {
        return TRUE;
    }

    WebContentUpdateThreadInit();
    DataCollectionSessionInit();

    ApplySettings();

    return TRUE;
}