#include "theme_factory.h"

#include "icon_utils.h"

struct ToolbarParams {
    ToolbarThemeTemplates t;

    QColor iconColor;
    QColor iconDisabledColor;
    QColor iconCheckedColor;
    QColor backgroundColor;
    QColor separatorColor;
    QColor checkedButtonColor;
    QColor menuIndicatorColor;
};

struct ViewerParams {
    ViewerThemeTemplates t;

    QColor defaultBackgroundColor;
    QColor defaultTextColor;
    QColor infoBackgroundColor;
    QColor infoTextColor;
};

struct ThemeParams {
    QString themeName;

    ToolbarParams toolbarParams;
    ViewerParams viewerParams;
};

void setToolbarIconPair(QIcon &icon,
                        QIcon &icon18,
                        const QString &basePath,
                        const QColor &iconColor,
                        const QColor &disabledColor,
                        const QColor &checkedColor,
                        const QString &themeName)
{
    QString path18 = basePath;
    if (path18.endsWith(".svg"))
        path18.insert(path18.size() - 4, "_18x18");
    else
        path18.append("_18x18");

    // Normal
    const QString normalPath = recoloredSvgToThemeFile(basePath, iconColor, themeName);
    const QString normalPath18 = recoloredSvgToThemeFile(path18, iconColor, themeName);
    // Disabled
    const QString disabledPath = recoloredSvgToThemeFile(basePath, disabledColor, themeName, "_disabled");
    const QString disabledPath18 = recoloredSvgToThemeFile(path18, disabledColor, themeName, "_disabled");
    // Checked (On state)
    const QString checkedPath = recoloredSvgToThemeFile(basePath, checkedColor, themeName, "_checked");
    const QString checkedPath18 = recoloredSvgToThemeFile(path18, checkedColor, themeName, "_checked");

    icon.addFile(normalPath, QSize(), QIcon::Normal, QIcon::Off);
    icon.addFile(disabledPath, QSize(), QIcon::Disabled, QIcon::Off);
    icon.addFile(checkedPath, QSize(), QIcon::Normal, QIcon::On);
    icon.addFile(disabledPath, QSize(), QIcon::Disabled, QIcon::On);

    icon18.addFile(normalPath18, QSize(), QIcon::Normal, QIcon::Off);
    icon18.addFile(disabledPath18, QSize(), QIcon::Disabled, QIcon::Off);
    icon18.addFile(checkedPath18, QSize(), QIcon::Normal, QIcon::On);
    icon18.addFile(disabledPath18, QSize(), QIcon::Disabled, QIcon::On);
}

Theme makeTheme(const ThemeParams &params)
{
    Theme theme;

    // Toolbar & actions
    theme.toolbar.toolbarQSS = params.toolbarParams.t.toolbarQSS.arg(params.toolbarParams.backgroundColor.name(), params.toolbarParams.separatorColor.name(), params.toolbarParams.checkedButtonColor.name(), recoloredSvgToThemeFile(params.toolbarParams.t.menuArrowPath, params.toolbarParams.menuIndicatorColor, params.themeName));

    auto setToolbarIconPairT = [&](QIcon &icon, QIcon &icon18, const QString &basePath) {
        setToolbarIconPair(icon, icon18, basePath, params.toolbarParams.iconColor, params.toolbarParams.iconDisabledColor, params.toolbarParams.iconCheckedColor, params.themeName);
    };

    setToolbarIconPairT(theme.toolbar.openAction, theme.toolbar.openAction18x18, ":/images/viewer_toolbar/open.svg");
    setToolbarIconPairT(theme.toolbar.openFolderAction, theme.toolbar.openFolderAction18x18, ":/images/viewer_toolbar/openFolder.svg");
    setToolbarIconPairT(theme.toolbar.openLatestComicAction, theme.toolbar.openLatestComicAction18x18, ":/images/viewer_toolbar/openNext.svg");
    setToolbarIconPairT(theme.toolbar.saveImageAction, theme.toolbar.saveImageAction18x18, ":/images/viewer_toolbar/save.svg");
    setToolbarIconPairT(theme.toolbar.openComicOnTheLeftAction, theme.toolbar.openComicOnTheLeftAction18x18, ":/images/viewer_toolbar/openPrevious.svg");
    setToolbarIconPairT(theme.toolbar.openComicOnTheRightAction, theme.toolbar.openComicOnTheRightAction18x18, ":/images/viewer_toolbar/openNext.svg");
    setToolbarIconPairT(theme.toolbar.goToPageOnTheLeftAction, theme.toolbar.goToPageOnTheLeftAction18x18, ":/images/viewer_toolbar/previous.svg");
    setToolbarIconPairT(theme.toolbar.goToPageOnTheRightAction, theme.toolbar.goToPageOnTheRightAction18x18, ":/images/viewer_toolbar/next.svg");
    setToolbarIconPairT(theme.toolbar.adjustHeightAction, theme.toolbar.adjustHeightAction18x18, ":/images/viewer_toolbar/toHeight.svg");
    setToolbarIconPairT(theme.toolbar.adjustWidthAction, theme.toolbar.adjustWidthAction18x18, ":/images/viewer_toolbar/toWidth.svg");
    setToolbarIconPairT(theme.toolbar.leftRotationAction, theme.toolbar.leftRotationAction18x18, ":/images/viewer_toolbar/rotateL.svg");
    setToolbarIconPairT(theme.toolbar.rightRotationAction, theme.toolbar.rightRotationAction18x18, ":/images/viewer_toolbar/rotateR.svg");
    setToolbarIconPairT(theme.toolbar.doublePageAction, theme.toolbar.doublePageAction18x18, ":/images/viewer_toolbar/doublePage.svg");
    setToolbarIconPairT(theme.toolbar.doubleMangaPageAction, theme.toolbar.doubleMangaPageAction18x18, ":/images/viewer_toolbar/doubleMangaPage.svg");
    setToolbarIconPairT(theme.toolbar.showZoomSliderlAction, theme.toolbar.showZoomSliderlAction18x18, ":/images/viewer_toolbar/zoom.svg");
    setToolbarIconPairT(theme.toolbar.goToPageAction, theme.toolbar.goToPageAction18x18, ":/images/viewer_toolbar/goto.svg");
    setToolbarIconPairT(theme.toolbar.optionsAction, theme.toolbar.optionsAction18x18, ":/images/viewer_toolbar/options.svg");
    setToolbarIconPairT(theme.toolbar.helpAboutAction, theme.toolbar.helpAboutAction18x18, ":/images/viewer_toolbar/help.svg");
    setToolbarIconPairT(theme.toolbar.showMagnifyingGlassAction, theme.toolbar.showMagnifyingGlassAction18x18, ":/images/viewer_toolbar/magnifyingGlass.svg");
    setToolbarIconPairT(theme.toolbar.setBookmarkAction, theme.toolbar.setBookmarkAction18x18, ":/images/viewer_toolbar/bookmark.svg");
    setToolbarIconPairT(theme.toolbar.showBookmarksAction, theme.toolbar.showBookmarksAction18x18, ":/images/viewer_toolbar/showBookmarks.svg");
    setToolbarIconPairT(theme.toolbar.showShorcutsAction, theme.toolbar.showShorcutsAction18x18, ":/images/viewer_toolbar/shortcuts.svg");
    setToolbarIconPairT(theme.toolbar.showInfoAction, theme.toolbar.showInfoAction18x18, ":/images/viewer_toolbar/info.svg");
    setToolbarIconPairT(theme.toolbar.closeAction, theme.toolbar.closeAction18x18, ":/images/viewer_toolbar/close.svg");
    setToolbarIconPairT(theme.toolbar.showDictionaryAction, theme.toolbar.showDictionaryAction18x18, ":/images/viewer_toolbar/translator.svg");
    setToolbarIconPairT(theme.toolbar.adjustToFullSizeAction, theme.toolbar.adjustToFullSizeAction18x18, ":/images/viewer_toolbar/full.svg");
    setToolbarIconPairT(theme.toolbar.fitToPageAction, theme.toolbar.fitToPageAction18x18, ":/images/viewer_toolbar/fitToPage.svg");
    setToolbarIconPairT(theme.toolbar.showFlowAction, theme.toolbar.showFlowAction18x18, ":/images/viewer_toolbar/flow.svg");
    // end Toolbar & actions

    // Viewer
    theme.viewer.defaultBackgroundColor = params.viewerParams.defaultBackgroundColor;
    theme.viewer.defaultTextColor = params.viewerParams.defaultTextColor;
    theme.viewer.infoBackgroundColor = params.viewerParams.infoBackgroundColor;
    theme.viewer.infoLabelQSS = params.viewerParams.t.infoLabelQSS.arg(params.viewerParams.infoTextColor.name());
    // end Viewer

    return theme;
}

ThemeParams classicThemeParams();
ThemeParams lightThemeParams();
ThemeParams darkThemeParams();

Theme makeTheme(ThemeId themeId)
{
    switch (themeId) {
    case ThemeId::Classic:
        return makeTheme(classicThemeParams());
    case ThemeId::Light:
        return makeTheme(lightThemeParams());
    case ThemeId::Dark:
        return makeTheme(darkThemeParams());
    }
}

ThemeParams classicThemeParams()
{
    ThemeParams params;
    params.themeName = "classic";

    ToolbarParams toolbarParams;
    toolbarParams.iconColor = QColor(0x404040);
    toolbarParams.iconDisabledColor = QColor(0x858585);
    toolbarParams.iconCheckedColor = QColor(0x5A5A5A);
    toolbarParams.backgroundColor = QColor(0xF3F3F3);
    toolbarParams.separatorColor = QColor(0xCCCCCC);
    toolbarParams.checkedButtonColor = QColor(0xCCCCCC);
    toolbarParams.menuIndicatorColor = QColor(0x404040);

    params.toolbarParams = toolbarParams;

    ViewerParams viewerParams;
    viewerParams.defaultBackgroundColor = QColor(0x282828);
    viewerParams.defaultTextColor = Qt::white;
    viewerParams.infoBackgroundColor = QColor::fromRgba(0xBB000000);
    viewerParams.infoTextColor = Qt::white;
    viewerParams.t = ViewerThemeTemplates();

    params.viewerParams = viewerParams;

    return params;
}

ThemeParams lightThemeParams()
{
    ThemeParams params;
    params.themeName = "light";

    ToolbarParams toolbarParams;
    toolbarParams.iconColor = QColor(0x404040);
    toolbarParams.iconDisabledColor = QColor(0xB0B0B0);
    toolbarParams.iconCheckedColor = QColor(0x5A5A5A);
    toolbarParams.backgroundColor = QColor(0xF3F3F3);
    toolbarParams.separatorColor = QColor(0xCCCCCC);
    toolbarParams.checkedButtonColor = QColor(0xCCCCCC);
    toolbarParams.menuIndicatorColor = QColor(0x404040);

    params.toolbarParams = toolbarParams;

    ViewerParams viewerParams;
    viewerParams.defaultBackgroundColor = QColor(0xF6F6F6);
    viewerParams.defaultTextColor = QColor(0x202020);
    viewerParams.infoBackgroundColor = QColor::fromRgba(0xBBFFFFFF);
    viewerParams.infoTextColor = QColor(0x404040);
    viewerParams.t = ViewerThemeTemplates();

    params.viewerParams = viewerParams;

    return params;
}

ThemeParams darkThemeParams()
{
    ThemeParams params;
    params.themeName = "dark";

    ToolbarParams toolbarParams;
    toolbarParams.iconColor = QColor(0xCCCCCC);
    toolbarParams.iconDisabledColor = QColor(0x444444);
    toolbarParams.iconCheckedColor = QColor(0xDADADA);
    toolbarParams.backgroundColor = QColor(0x202020);
    toolbarParams.separatorColor = QColor(0x444444);
    toolbarParams.checkedButtonColor = QColor(0x3A3A3A);
    toolbarParams.menuIndicatorColor = QColor(0xCCCCCC);

    params.toolbarParams = toolbarParams;

    ViewerParams viewerParams;
    viewerParams.defaultBackgroundColor = QColor(40, 40, 40);
    viewerParams.defaultTextColor = Qt::white;
    viewerParams.infoBackgroundColor = QColor::fromRgba(0xBB000000);
    viewerParams.infoTextColor = QColor(0xB0B0B0);
    viewerParams.t = ViewerThemeTemplates();

    params.viewerParams = viewerParams;

    return params;
}

// TODO
ThemeParams paramsFromFile(const QString &filePath)
{
    return {};
}