/*****************************************************************************
 * Copyright (c) 2014-2026 OpenRCT2 developers
 *
 * For a complete list of all authors, please refer to contributors.md
 * Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
 *
 * OpenRCT2 is licensed under the GNU General Public License version 3.
 *****************************************************************************/

#include "../interface/Theme.h"

#include <openrct2-ui/interface/Dropdown.h>
#include <openrct2-ui/interface/Widget.h>
#include <openrct2-ui/interface/Window.h>
#include <openrct2-ui/windows/Windows.h>
#include <openrct2/Context.h>
#include <openrct2/SpriteIds.h>
#include <openrct2/drawing/ColourMap.h>
#include <openrct2/drawing/Drawing.String.h>
#include <openrct2/drawing/Drawing.h>
#include <openrct2/drawing/Rectangle.h>
#include <openrct2/drawing/RenderTarget.h>
#include <openrct2/drawing/Text.h>
#include <openrct2/interface/ColourWithFlags.h>
#include <openrct2/localisation/Formatter.h>
#include <openrct2/localisation/Formatting.h>
#include <openrct2/localisation/StringIds.h>
#include <openrct2/platform/Platform.h>
#include <openrct2/ui/WindowManager.h>

using namespace OpenRCT2::Drawing;

namespace OpenRCT2::Ui::Windows
{
    enum
    {
        WINDOW_THEMES_TAB_SETTINGS,
        WINDOW_THEMES_TAB_MAIN_UI,
        WINDOW_THEMES_TAB_PARK,
        WINDOW_THEMES_TAB_TOOLS,
        WINDOW_THEMES_TAB_RIDES_PEEPS,
        WINDOW_THEMES_TAB_EDITORS,
        WINDOW_THEMES_TAB_MISC,
        WINDOW_THEMES_TAB_PROMPTS,
        WINDOW_THEMES_TAB_FEATURES,
        WINDOW_THEMES_TAB_COUNT
    };

    enum WindowThemesWidgetIdx : WidgetIndex
    {
        WIDX_THEMES_BACKGROUND,
        WIDX_THEMES_TITLE,
        WIDX_THEMES_CLOSE,
        WIDX_THEMES_TAB_CONTENT_PANEL,
        WIDX_THEMES_SETTINGS_TAB,
        WIDX_THEMES_MAIN_UI_TAB,
        WIDX_THEMES_PARK_TAB,
        WIDX_THEMES_TOOLS_TAB,
        WIDX_THEMES_RIDE_PEEPS_TAB,
        WIDX_THEMES_EDITORS_TAB,
        WIDX_THEMES_MISC_TAB,
        WIDX_THEMES_PROMPTS_TAB,
        WIDX_THEMES_FEATURES_TAB,
        WIDX_THEMES_HEADER_WINDOW,
        WIDX_THEMES_HEADER_PALETTE,
        WIDX_THEMES_HEADER_TRANSPARENCY,
        WIDX_THEMES_PRESETS,
        WIDX_THEMES_PRESETS_DROPDOWN,
        WIDX_THEMES_DUPLICATE_BUTTON,
        WIDX_THEMES_DELETE_BUTTON,
        WIDX_THEMES_RENAME_BUTTON,
        WIDX_THEMES_COLOURBTN_MASK,
        WIDX_THEMES_LIST,
        WIDX_THEMES_RCT1_RIDE_LIGHTS,
        WIDX_THEMES_RCT1_PARK_LIGHTS,
        WIDX_THEMES_RCT1_SCENARIO_FONT,
        WIDX_THEMES_RCT1_BOTTOM_TOOLBAR,
        WIDX_THEMES_USE_3D_IMAGE_BUTTONS,
    };

    static constexpr StringId kWindowTitle = STR_THEMES_TITLE;
    static constexpr ScreenSize kWindowSize = { 320, 107 };

    const uint16_t kWindowHeaderWidth = 152;

    // clang-format off
    static constexpr auto _themesWidgets = makeWidgets(
        makeWindowShim(kWindowTitle, kWindowSize),
        makeWidget({  0, 43}, {320,  64},               WidgetType::resize,       WindowColour::secondary                                                                                ), // tab content panel
        makeTab   ({  3, 17},                                                                              STR_THEMES_TAB_SETTINGS_TIP                                                   ), // settings tab
        makeTab   ({ 34, 17},                                                                              STR_THEMES_TAB_MAIN_TIP                                                       ), // main ui tab
        makeTab   ({ 65, 17},                                                                              STR_THEMES_TAB_PARK_TIP                                                       ), // park tab
        makeTab   ({ 96, 17},                                                                              STR_THEMES_TAB_TOOLS_TIP                                                      ), // tools tab
        makeTab   ({127, 17},                                                                              STR_THEMES_TAB_RIDES_AND_GUESTS_TIP                                           ), // rides and peeps tab
        makeTab   ({158, 17},                                                                              STR_THEMES_TAB_EDITORS_TIP                                                    ), // editors tab
        makeTab   ({189, 17},                                                                              STR_THEMES_TAB_MISC_TIP                                                       ), // misc tab
        makeTab   ({220, 17},                                                                              STR_THEMES_TAB_PROMPTS_TIP                                                    ), // prompts tab
        makeTab   ({251, 17},                                                                              STR_THEMES_TAB_FEATURES_TIP                                                   ), // features tab
        makeWidget({  5, 46}, {kWindowHeaderWidth, 15}, WidgetType::tableHeader,  WindowColour::secondary, STR_THEMES_HEADER_WINDOW                                                      ), // Window header
        makeWidget({157, 46}, { 79,                15}, WidgetType::tableHeader,  WindowColour::secondary, STR_THEMES_HEADER_PALETTE                                                     ), // Palette header
        makeWidget({236, 46}, { 80,                15}, WidgetType::tableHeader,  WindowColour::secondary, STR_THEMES_HEADER_TRANSPARENCY                                                ), // Transparency header
        makeWidget({125, 60}, {175,                12}, WidgetType::dropdownMenu, WindowColour::secondary                                                                                ), // Preset colour schemes
        makeWidget({288, 61}, { 11,                10}, WidgetType::button,       WindowColour::secondary, STR_DROPDOWN_GLYPH                                                            ),
        makeWidget({ 10, 82}, { 91,                12}, WidgetType::button,       WindowColour::secondary, STR_THEMES_ACTION_DUPLICATE,                   STR_THEMES_ACTION_DUPLICATE_TIP), // Duplicate button
        makeWidget({110, 82}, { 91,                12}, WidgetType::button,       WindowColour::secondary, STR_TRACK_MANAGE_DELETE,                       STR_THEMES_ACTION_DELETE_TIP   ), // Delete button
        makeWidget({210, 82}, { 91,                12}, WidgetType::button,       WindowColour::secondary, STR_TRACK_MANAGE_RENAME,                       STR_THEMES_ACTION_RENAME_TIP   ), // Rename button
        makeWidget({  0,  0}, {  1,                 1}, WidgetType::colourBtn,    WindowColour::secondary                                                                                ), // colour button mask
        makeWidget({  3, 60}, {314,                44}, WidgetType::scroll,       WindowColour::secondary, SCROLL_VERTICAL                                                               ), // staff list
        makeWidget({ 10, 54}, {290,                12}, WidgetType::checkbox,     WindowColour::secondary, STR_THEMES_OPTION_RCT1_RIDE_CONTROLS                                          ), // rct1 ride lights
        makeWidget({ 10, 69}, {290,                12}, WidgetType::checkbox,     WindowColour::secondary, STR_THEMES_OPTION_RCT1_PARK_CONTROLS                                          ), // rct1 park lights
        makeWidget({ 10, 84}, {290,                12}, WidgetType::checkbox,     WindowColour::secondary, STR_THEMES_OPTION_RCT1_SCENARIO_SELECTION_FONT                                ), // rct1 scenario font
        makeWidget({ 10, 99}, {290,                12}, WidgetType::checkbox,     WindowColour::secondary, STR_THEMES_OPTION_RCT1_BOTTOM_TOOLBAR                                         ), // rct1 bottom toolbar
        makeWidget({ 10,114}, {290,                12}, WidgetType::checkbox,     WindowColour::secondary, STR_THEMES_OPTION_USE_3D_IMAGE_BUTTONS                                        )  // use 3D image buttons
    );
    // clang-format on

#pragma region Tabs

    // clang-format off
    static int32_t window_themes_tab_animation_loops[] = {
        32,
        32,
        1,
        1,
        64,
        32,
        8,
        14,
        38,
    };
    static int32_t window_themes_tab_animation_divisor[] = {
        4,
        4,
        1,
        1,
        4,
        2,
        2,
        2,
        2,
    };
    static int32_t window_themes_tab_sprites[] = {
        SPR_TAB_PAINT_0,
        SPR_TAB_KIOSKS_AND_FACILITIES_0,
        SPR_TAB_PARK_ENTRANCE,
        SPR_G2_TAB_LAND,
        SPR_TAB_RIDE_0,
        SPR_TAB_WRENCH_0,
        SPR_TAB_GEARS_0,
        SPR_TAB_STAFF_OPTIONS_0,
        SPR_TAB_FINANCES_MARKETING_0,
    };

    static WindowClass window_themes_tab_1_classes[] = {
        WindowClass::topToolbar,
        WindowClass::bottomToolbar,
        WindowClass::parkInfoPanel,
        WindowClass::dateInfoPanel,
        WindowClass::editorScenarioBottomToolbar,
        WindowClass::editorTrackBottomToolbar,
        WindowClass::titleMenu,
        WindowClass::titleExit,
        WindowClass::titleOptions,
        WindowClass::scenarioSelect,
    };

    static WindowClass window_themes_tab_2_classes[] = {
        WindowClass::parkInformation,
        WindowClass::editorParkEntrance,
        WindowClass::finances,
        WindowClass::newCampaign,
        WindowClass::research,
        WindowClass::map,
        WindowClass::viewport,
        WindowClass::recentNews,
    };

    static WindowClass window_themes_tab_3_classes[] = {
        WindowClass::land,
        WindowClass::water,
        WindowClass::clearScenery,
        WindowClass::landRights,
        WindowClass::scenery,
        WindowClass::sceneryScatter,
        WindowClass::footpath,
        WindowClass::rideConstruction,
        WindowClass::trackDesignPlace,
        WindowClass::constructRide,
        WindowClass::trackDesignList,
        WindowClass::patrolArea,
    };

    static WindowClass window_themes_tab_4_classes[] = {
        WindowClass::ride,
        WindowClass::rideList,
        WindowClass::peep,
        WindowClass::guestList,
        WindowClass::staff,
        WindowClass::staffList,
        WindowClass::banner,
    };

    static WindowClass window_themes_tab_5_classes[] = {
        WindowClass::editorObjectSelection,
        WindowClass::editorInventionList,
        WindowClass::editorScenarioOptions,
        WindowClass::mapgen,
        WindowClass::manageTrackDesign,
        WindowClass::installTrack,
    };

    static WindowClass window_themes_tab_6_classes[] = {
        WindowClass::cheats,
        WindowClass::tileInspector,
        WindowClass::viewClipping,
        WindowClass::transparency,
        WindowClass::themes,
        WindowClass::options,
        WindowClass::keyboardShortcutList,
        WindowClass::changeKeyboardShortcut,
        WindowClass::assetPacks,
        WindowClass::loadsave,
        WindowClass::about,
        WindowClass::changelog,
        WindowClass::serverList,
        WindowClass::multiplayer,
        WindowClass::player,
        WindowClass::chat,
        WindowClass::console,
    };

    static WindowClass window_themes_tab_7_classes[] = {
        WindowClass::error,
        WindowClass::savePrompt,
        WindowClass::demolishRidePrompt,
        WindowClass::firePrompt,
        WindowClass::trackDeletePrompt,
        WindowClass::loadsaveOverwritePrompt,
        WindowClass::progressWindow,
        WindowClass::networkStatus,
    };

    static WindowClass* window_themes_tab_classes[] = {
        nullptr,
        window_themes_tab_1_classes,
        window_themes_tab_2_classes,
        window_themes_tab_3_classes,
        window_themes_tab_4_classes,
        window_themes_tab_5_classes,
        window_themes_tab_6_classes,
        window_themes_tab_7_classes,
    };
    // clang-format on

#pragma endregion

    class ThemesWindow final : public Window
    {
    private:
        uint8_t _selectedTab = 0;
        int16_t _classIndex = -1;
        int8_t _buttonIndex = -1;
        const uint8_t _max_row_height = 56;
        const uint8_t _button_offset_x = 185;
        const uint8_t _button_offset_y = 3;
        const uint8_t _check_offset_y = 3;
        const uint16_t _check_offset_x = 265;
        const uint8_t _button_size = 12;

    public:
#pragma region Window Override Events

        void onOpen() override
        {
            setWidgets(_themesWidgets);

            WindowThemesInitVars();
            WindowInitScrollWidgets(*this);
            WindowSetResize(*this, kWindowSize, kWindowSize);
            updatePressedTab();

            listInformationType = 0;
            _classIndex = -1;
            _buttonIndex = -1;
        }

        void updatePressedTab()
        {
            widgetSetPressedExclusive(
                *this,
                { WIDX_THEMES_SETTINGS_TAB, WIDX_THEMES_MAIN_UI_TAB, WIDX_THEMES_PARK_TAB, WIDX_THEMES_TOOLS_TAB,
                  WIDX_THEMES_RIDE_PEEPS_TAB, WIDX_THEMES_EDITORS_TAB, WIDX_THEMES_MISC_TAB, WIDX_THEMES_PROMPTS_TAB,
                  WIDX_THEMES_FEATURES_TAB },
                _selectedTab + WIDX_THEMES_SETTINGS_TAB);
        }

        void onResize() override
        {
            if (_selectedTab == WINDOW_THEMES_TAB_SETTINGS)
            {
                if (WindowSetResize(*this, kWindowSize, kWindowSize))
                    GfxInvalidateScreen();
            }
            else if (_selectedTab == WINDOW_THEMES_TAB_FEATURES)
            {
                if (WindowSetResize(*this, { 320, 137 }, { 320, 137 }))
                    GfxInvalidateScreen();
            }
            else
            {
                WindowSetResize(*this, { 320, 270 }, { 320, 450 });
            }
        }

        void onUpdate() override
        {
            currentFrame++;
            if (currentFrame >= window_themes_tab_animation_loops[_selectedTab])
                currentFrame = 0;

            invalidateWidget(WIDX_THEMES_SETTINGS_TAB + _selectedTab);
        }

        void onPrepareDraw() override
        {
            auto* windowMgr = GetWindowManager();
            if (windowMgr->FindByClass(WindowClass::dropdown) == nullptr)
            {
                _classIndex = -1;
                _buttonIndex = -1;
            }

            widgets[WIDX_THEMES_LIST].right = width - 4;
            widgets[WIDX_THEMES_LIST].bottom = height - 0x0F;

            const bool isSettings = _selectedTab == WINDOW_THEMES_TAB_SETTINGS;
            const bool isFeatures = _selectedTab == WINDOW_THEMES_TAB_FEATURES;
            const bool isOther = !(isSettings || isFeatures);

            widgets[WIDX_THEMES_HEADER_WINDOW].setVisible(isOther);
            widgets[WIDX_THEMES_HEADER_PALETTE].setVisible(isOther);
            widgets[WIDX_THEMES_HEADER_TRANSPARENCY].setVisible(isOther);
            widgets[WIDX_THEMES_LIST].setVisible(isOther);

            widgets[WIDX_THEMES_RCT1_RIDE_LIGHTS].setVisible(isFeatures);
            widgets[WIDX_THEMES_RCT1_PARK_LIGHTS].setVisible(isFeatures);
            widgets[WIDX_THEMES_RCT1_SCENARIO_FONT].setVisible(isFeatures);
            widgets[WIDX_THEMES_RCT1_BOTTOM_TOOLBAR].setVisible(isFeatures);
            widgets[WIDX_THEMES_USE_3D_IMAGE_BUTTONS].setVisible(isFeatures);

            widgets[WIDX_THEMES_DUPLICATE_BUTTON].setVisible(isSettings);
            widgets[WIDX_THEMES_DELETE_BUTTON].setVisible(isSettings);
            widgets[WIDX_THEMES_RENAME_BUTTON].setVisible(isSettings);
            widgets[WIDX_THEMES_PRESETS].setVisible(isSettings);
            widgets[WIDX_THEMES_PRESETS_DROPDOWN].setVisible(isSettings);

            widgets[WIDX_THEMES_COLOURBTN_MASK].setHidden();

            if (isFeatures)
            {
                setCheckboxValue(WIDX_THEMES_RCT1_RIDE_LIGHTS, ThemeGetFlags() & UITHEME_FLAG_USE_LIGHTS_RIDE);
                setCheckboxValue(WIDX_THEMES_RCT1_PARK_LIGHTS, ThemeGetFlags() & UITHEME_FLAG_USE_LIGHTS_PARK);
                setCheckboxValue(
                    WIDX_THEMES_RCT1_SCENARIO_FONT, ThemeGetFlags() & UITHEME_FLAG_USE_ALTERNATIVE_SCENARIO_SELECT_FONT);
                setCheckboxValue(WIDX_THEMES_RCT1_BOTTOM_TOOLBAR, ThemeGetFlags() & UITHEME_FLAG_USE_FULL_BOTTOM_TOOLBAR);
                setCheckboxValue(WIDX_THEMES_USE_3D_IMAGE_BUTTONS, ThemeGetFlags() & UITHEME_FLAG_USE_3D_IMAGE_BUTTONS);
            }
        }

        void onDraw(RenderTarget& rt) override
        {
            // Widgets
            WindowDrawWidgets(*this, rt);
            WindowThemesDrawTabImages(rt);

            if (_selectedTab == WINDOW_THEMES_TAB_SETTINGS)
            {
                drawText(
                    rt, windowPos + ScreenCoordsXY{ 10, widgets[WIDX_THEMES_PRESETS].top + 1 }, STR_THEMES_LABEL_CURRENT_THEME,
                    {}, { colours[1] });

                size_t activeAvailableThemeIndex = ThemeManagerGetAvailableThemeIndex();
                const utf8* activeThemeName = ThemeManagerGetAvailableThemeName(activeAvailableThemeIndex);

                auto screenPos = windowPos
                    + ScreenCoordsXY{ widgets[WIDX_THEMES_PRESETS].left + 1, widgets[WIDX_THEMES_PRESETS].top };
                auto newWidth = windowPos.x + widgets[WIDX_THEMES_PRESETS_DROPDOWN].left - widgets[WIDX_THEMES_PRESETS].left
                    - 4;

                drawTextEllipsised(rt, screenPos, newWidth, activeThemeName, { colours[1] });
            }
        }

        void onMouseDown(WidgetIndex widgetIndex) override
        {
            auto widget = &widgets[widgetIndex];
            auto* windowMgr = GetWindowManager();

            switch (widgetIndex)
            {
                case WIDX_THEMES_SETTINGS_TAB:
                case WIDX_THEMES_MAIN_UI_TAB:
                case WIDX_THEMES_PARK_TAB:
                case WIDX_THEMES_TOOLS_TAB:
                case WIDX_THEMES_RIDE_PEEPS_TAB:
                case WIDX_THEMES_EDITORS_TAB:
                case WIDX_THEMES_MISC_TAB:
                case WIDX_THEMES_PROMPTS_TAB:
                case WIDX_THEMES_FEATURES_TAB:
                {
                    auto newSelectedTab = widgetIndex - WIDX_THEMES_SETTINGS_TAB;
                    if (_selectedTab == newSelectedTab)
                        break;
                    _selectedTab = static_cast<uint8_t>(newSelectedTab);
                    scrolls[0].contentOffsetY = 0;
                    currentFrame = 0;
                    updatePressedTab();
                    onResize();
                    invalidate();
                    break;
                }
                case WIDX_THEMES_PRESETS_DROPDOWN:
                {
                    ThemeManagerLoadAvailableThemes();
                    auto num_items = static_cast<int32_t>(ThemeManagerGetNumAvailableThemes());

                    widget--;
                    for (int32_t i = 0; i < num_items; i++)
                    {
                        gDropdown.items[i] = Dropdown::MenuLabel(ThemeManagerGetAvailableThemeName(i));
                    }

                    WindowDropdownShowTextCustomWidth(
                        { windowPos.x + widget->left, windowPos.y + widget->top }, widget->height(), colours[1], 0, {},
                        num_items, widget->width() - 4);

                    gDropdown.items[static_cast<int32_t>(ThemeManagerGetAvailableThemeIndex())].setChecked(true);
                    break;
                }
                case WIDX_THEMES_RCT1_RIDE_LIGHTS:
                    if (ThemeGetFlags() & UITHEME_FLAG_PREDEFINED)
                    {
                        ContextShowError(STR_THEMES_ERR_CANT_CHANGE_THIS_THEME, kStringIdNone, {});
                    }
                    else
                    {
                        ThemeSetFlags(ThemeGetFlags() ^ UITHEME_FLAG_USE_LIGHTS_RIDE);
                        ThemeSave();
                        windowMgr->InvalidateAll();
                    }
                    break;
                case WIDX_THEMES_RCT1_PARK_LIGHTS:
                    if (ThemeGetFlags() & UITHEME_FLAG_PREDEFINED)
                    {
                        ContextShowError(STR_THEMES_ERR_CANT_CHANGE_THIS_THEME, kStringIdNone, {});
                    }
                    else
                    {
                        ThemeSetFlags(ThemeGetFlags() ^ static_cast<uint8_t>(UITHEME_FLAG_USE_LIGHTS_PARK));
                        ThemeSave();
                        windowMgr->InvalidateAll();
                    }
                    break;
                case WIDX_THEMES_RCT1_SCENARIO_FONT:
                    if (ThemeGetFlags() & UITHEME_FLAG_PREDEFINED)
                    {
                        ContextShowError(STR_THEMES_ERR_CANT_CHANGE_THIS_THEME, kStringIdNone, {});
                    }
                    else
                    {
                        ThemeSetFlags(
                            ThemeGetFlags() ^ static_cast<uint8_t>(UITHEME_FLAG_USE_ALTERNATIVE_SCENARIO_SELECT_FONT));
                        ThemeSave();
                        windowMgr->InvalidateAll();
                    }
                    break;
                case WIDX_THEMES_RCT1_BOTTOM_TOOLBAR:
                    if (ThemeGetFlags() & UITHEME_FLAG_PREDEFINED)
                    {
                        ContextShowError(STR_THEMES_ERR_CANT_CHANGE_THIS_THEME, kStringIdNone, {});
                    }
                    else
                    {
                        ThemeSetFlags(ThemeGetFlags() ^ static_cast<uint8_t>(UITHEME_FLAG_USE_FULL_BOTTOM_TOOLBAR));
                        ThemeSave();
                        windowMgr->InvalidateAll();
                    }
                    break;
                case WIDX_THEMES_USE_3D_IMAGE_BUTTONS:
                    if (ThemeGetFlags() & UITHEME_FLAG_PREDEFINED)
                    {
                        ContextShowError(STR_THEMES_ERR_CANT_CHANGE_THIS_THEME, kStringIdNone, {});
                    }
                    else
                    {
                        ThemeSetFlags(ThemeGetFlags() ^ static_cast<uint8_t>(UITHEME_FLAG_USE_3D_IMAGE_BUTTONS));
                        ThemeSave();
                        windowMgr->InvalidateAll();
                    }
                    break;
            }
        }

        void onMouseUp(WidgetIndex widgetIndex) override
        {
            size_t activeAvailableThemeIndex;
            const utf8* activeThemeName;

            switch (widgetIndex)
            {
                case WIDX_THEMES_CLOSE:
                    close();
                    break;
                case WIDX_THEMES_DUPLICATE_BUTTON:;
                    activeAvailableThemeIndex = ThemeManagerGetAvailableThemeIndex();
                    activeThemeName = ThemeManagerGetAvailableThemeName(activeAvailableThemeIndex);
                    WindowTextInputOpen(
                        this, widgetIndex, STR_THEMES_ACTION_DUPLICATE, STR_THEMES_PROMPT_ENTER_THEME_NAME, {}, STR_STRING,
                        reinterpret_cast<uintptr_t>(activeThemeName), 64);
                    break;
                case WIDX_THEMES_DELETE_BUTTON:
                    if (ThemeGetFlags() & UITHEME_FLAG_PREDEFINED)
                    {
                        ContextShowError(STR_THEMES_ERR_CANT_CHANGE_THIS_THEME, kStringIdNone, {});
                    }
                    else
                    {
                        ThemeDelete();
                    }
                    break;
                case WIDX_THEMES_RENAME_BUTTON:
                    if (ThemeGetFlags() & UITHEME_FLAG_PREDEFINED)
                    {
                        ContextShowError(STR_THEMES_ERR_CANT_CHANGE_THIS_THEME, kStringIdNone, {});
                    }
                    else
                    {
                        activeAvailableThemeIndex = ThemeManagerGetAvailableThemeIndex();
                        activeThemeName = ThemeManagerGetAvailableThemeName(activeAvailableThemeIndex);
                        WindowTextInputOpen(
                            this, widgetIndex, STR_TRACK_MANAGE_RENAME, STR_THEMES_PROMPT_ENTER_THEME_NAME, {}, STR_STRING,
                            reinterpret_cast<uintptr_t>(activeThemeName), 64);
                    }
                    break;
            }
        }

        void onDropdown(WidgetIndex widgetIndex, int32_t selectedIndex) override
        {
            switch (widgetIndex)
            {
                case WIDX_THEMES_LIST:
                    if (selectedIndex != -1)
                    {
                        ColourWithFlags newColour = { ColourDropDownIndexToColour(selectedIndex) };
                        WindowClass wc = GetWindowClassTabIndex(_classIndex);
                        auto oldColour = ThemeGetColour(wc, _buttonIndex);
                        newColour.flags = oldColour.flags;
                        ThemeSetColour(wc, _buttonIndex, newColour);
                        ColourSchemeUpdateAll();

                        auto* windowMgr = GetWindowManager();
                        windowMgr->InvalidateAll();

                        _classIndex = -1;
                        _buttonIndex = -1;
                    }
                    break;
                case WIDX_THEMES_PRESETS_DROPDOWN:
                    if (selectedIndex != -1)
                    {
                        ThemeManagerSetActiveAvailableTheme(selectedIndex);
                    }
                    break;
            }
        }

        void onTextInput(WidgetIndex widgetIndex, std::string_view text) override
        {
            if (text.empty())
                return;

            switch (widgetIndex)
            {
                case WIDX_THEMES_DUPLICATE_BUTTON:
                case WIDX_THEMES_RENAME_BUTTON:
                    if (Platform::IsFilenameValid(text))
                    {
                        if (ThemeGetIndexForName(std::string(text).c_str()) == SIZE_MAX)
                        {
                            if (widgetIndex == WIDX_THEMES_DUPLICATE_BUTTON)
                            {
                                ThemeDuplicate(std::string(text).c_str());
                            }
                            else
                            {
                                ThemeRename(std::string(text).c_str());
                            }
                            invalidate();
                        }
                        else
                        {
                            ContextShowError(STR_THEMES_ERR_NAME_ALREADY_EXISTS, kStringIdNone, {});
                        }
                    }
                    else
                    {
                        ContextShowError(STR_ERROR_INVALID_CHARACTERS, kStringIdNone, {});
                    }
                    break;
            }
        }

        ScreenSize onScrollGetSize(int32_t scrollIndex) override
        {
            if (_selectedTab == WINDOW_THEMES_TAB_SETTINGS || _selectedTab == WINDOW_THEMES_TAB_FEATURES)
                return {};

            int32_t scrollHeight = GetTotalColoursUpTo(GetColourSchemeTabCount()) * (_button_size + 2);
            int32_t i = scrollHeight - widgets[WIDX_THEMES_LIST].bottom + widgets[WIDX_THEMES_LIST].top + 21;
            if (i < 0)
                i = 0;
            if (i < scrolls[0].contentOffsetY)
            {
                scrolls[0].contentOffsetY = i;
                invalidate();
            }

            return { 420, scrollHeight };
        }

        void onScrollMouseDown(int32_t scrollIndex, const ScreenCoordsXY& screenCoords) override
        {
            if (screenCoords.y / _max_row_height < GetColourSchemeTabCount())
            {
                _classIndex = GetClassIndex(screenCoords.y);

                WindowClass wc = GetWindowClassTabIndex(_classIndex);
                int32_t numColours = ThemeDescGetNumColours(wc);

                numColours = AddGap(numColours, _classIndex);

                // position of y relative to the current class
                int32_t y2 = screenCoords.y - (GetTotalColoursUpTo(_classIndex + 1) - numColours) * (_button_size + 2);
                _buttonIndex = (y2 / _button_size);

                if (_buttonIndex < numColours)
                {
                    if (screenCoords.x >= _button_offset_x && screenCoords.x < _button_offset_x + (_button_size + 2)
                        && y2 >= _button_offset_y && y2 < _button_offset_y + (_button_size + 2) * 6)
                    {
                        if (ThemeGetFlags() & UITHEME_FLAG_PREDEFINED)
                        {
                            ContextShowError(STR_THEMES_ERR_CANT_CHANGE_THIS_THEME, STR_THEMES_DESC_CANT_CHANGE_THIS_THEME, {});
                        }
                        else
                        {
                            auto& colourButton = widgets[WIDX_THEMES_COLOURBTN_MASK];
                            colourButton.setVisible();
                            colourButton.left = _button_offset_x + widgets[WIDX_THEMES_LIST].left + _button_size;
                            colourButton.top = GetTotalColoursUpTo(_classIndex) * (_button_size + 2) - _button_offset_y - 4
                                + _button_size * _buttonIndex - scrolls[0].contentOffsetY + widgets[WIDX_THEMES_LIST].top;
                            colourButton.right = colourButton.left + 12;
                            colourButton.bottom = colourButton.top + 12;

                            auto colour = ThemeGetColour(wc, _buttonIndex);
                            WindowDropdownShowColour(
                                this, &(widgets[WIDX_THEMES_COLOURBTN_MASK]), colours[1], colour.colour, true);
                            invalidateWidget(WIDX_THEMES_LIST);
                        }
                    }
                    else if (
                        screenCoords.x >= _check_offset_x && screenCoords.x < _check_offset_x + _button_size
                        && y2 >= _check_offset_y && y2 < _check_offset_y + _button_size * 6 - 1)
                    {
                        if (ThemeGetFlags() & UITHEME_FLAG_PREDEFINED)
                        {
                            ContextShowError(STR_THEMES_ERR_CANT_CHANGE_THIS_THEME, STR_THEMES_DESC_CANT_CHANGE_THIS_THEME, {});
                        }
                        else
                        {
                            auto colour = ThemeGetColour(wc, _buttonIndex);
                            colour.flags.flip(ColourFlag::translucent);
                            ThemeSetColour(wc, _buttonIndex, colour);
                            ColourSchemeUpdateAll();

                            auto* windowMgr = GetWindowManager();
                            windowMgr->InvalidateAll();
                        }
                    }
                }
            }
        }

        void onScrollDraw(int32_t scrollIndex, RenderTarget& rt) override
        {
            ScreenCoordsXY screenCoords;

            if (_selectedTab == WINDOW_THEMES_TAB_SETTINGS || _selectedTab == WINDOW_THEMES_TAB_FEATURES)
                return;

            if (!colours[1].flags.has(ColourFlag::translucent))
                GfxClear(rt, getColourMap(colours[1].colour).midLight);

            screenCoords.y = 0;
            for (int32_t i = 0; i < GetColourSchemeTabCount(); i++)
            {
                WindowClass wc = GetWindowClassTabIndex(i);
                int32_t numColours = ThemeDescGetNumColours(wc);

                // If the window description wraps, make sure the row is high enough.
                bool emptyRow = false;

                int32_t newNumColours = AddGap(numColours, i);

                if (newNumColours != numColours)
                {
                    numColours = newNumColours;
                    emptyRow = true;
                }

                if (screenCoords.y > rt.y + rt.height)
                {
                    break;
                }
                if (screenCoords.y + _max_row_height >= rt.y)
                {
                    if (i + 1 < GetColourSchemeTabCount())
                    {
                        auto colour = colours[1];

                        int8_t colorOffset = (_button_size + 2) * (4 - numColours);

                        auto leftTop = ScreenCoordsXY{ 0, screenCoords.y + _max_row_height - colorOffset + 1 };
                        auto rightBottom = ScreenCoordsXY{ widgets[WIDX_THEMES_LIST].right,
                                                           screenCoords.y + _max_row_height - colorOffset + 1 };
                        auto yPixelOffset = ScreenCoordsXY{ 0, 1 };

                        if (colour.flags.has(ColourFlag::translucent))
                        {
                            TranslucentWindowPalette windowPalette = kTranslucentWindowPalettes[EnumValue(colour.colour)];

                            Rectangle::filter(rt, { leftTop, rightBottom }, windowPalette.highlight);
                            Rectangle::filter(rt, { leftTop + yPixelOffset, rightBottom + yPixelOffset }, windowPalette.shadow);
                        }
                        else
                        {
                            auto fillColour = getColourMap(colours[1].colour).midDark;
                            Rectangle::fill(rt, { leftTop, rightBottom }, fillColour);

                            fillColour = getColourMap(colours[1].colour).lightest;
                            Rectangle::fill(rt, { leftTop + yPixelOffset, rightBottom + yPixelOffset }, fillColour);
                        }
                    }

                    for (uint8_t j = 0; j < numColours; j++)
                    {
                        drawTextWrapped(
                            rt, { 2, screenCoords.y + 4 }, kWindowHeaderWidth, ThemeDescGetName(wc), { colours[1] });

                        // Don't draw the empty row
                        if (emptyRow && j == 1)
                        {
                            break;
                        }

                        auto colour = ThemeGetColour(wc, j);
                        const bool isPressed = (i == _classIndex && j == _buttonIndex);
                        auto image = ImageId(isPressed ? SPR_PALETTE_BTN_PRESSED : SPR_PALETTE_BTN, colour.colour);
                        GfxDrawSprite(
                            rt, image, { _button_offset_x, screenCoords.y + _button_offset_y + _button_size * j + 1 });

                        ScreenCoordsXY topLeft{ _check_offset_x, screenCoords.y + _check_offset_y + _button_size * j };
                        ScreenCoordsXY bottomRight{ _check_offset_x + 10,
                                                    screenCoords.y + _check_offset_y + 11 + _button_size * j };
                        Rectangle::fillInset(
                            rt, { topLeft, bottomRight }, colours[1], Rectangle::BorderStyle::inset,
                            Rectangle::FillBrightness::dark, Rectangle::FillMode::dontLightenWhenInset);
                        if (colour.flags.has(ColourFlag::translucent))
                        {
                            drawText(
                                rt, topLeft, kCheckMarkString, { colours[1].colour, FontStyle::medium, TextDarkness::dark });
                        }
                    }
                }

                screenCoords.y += ((_button_size + 2) * numColours);
            }
        }

#pragma endregion

        void WindowThemesInitVars()
        {
            _selectedTab = WINDOW_THEMES_TAB_SETTINGS;
        }

        WindowClass GetWindowClassTabIndex(int32_t index)
        {
            WindowClass* classes = window_themes_tab_classes[_selectedTab];
            return classes[index];
        }

        // If the window description wraps, make sure the row is high enough.
        int32_t AddGap(int32_t numColours, int8_t index)
        {
            if (numColours == 1 && GetTextWidth(index) >= kWindowHeaderWidth)
            {
                numColours++;
            }
            return numColours;
        }

        int8_t GetClassIndex(int32_t y)
        {
            int8_t numRows = 0;
            for (int32_t i = 0; i < GetColourSchemeTabCount(); ++i)
            {
                int32_t numColours = ThemeDescGetNumColours(GetWindowClassTabIndex(i));

                numColours = AddGap(numColours, i);

                numRows += numColours;

                if ((numRows * (_button_size + 2)) >= y)
                {
                    return i;
                }
            }
            return -1;
        }

        int32_t GetTextWidth(int8_t index)
        {
            WindowClass wc = GetWindowClassTabIndex(index);
            Formatter ft{};

            const void* args{};
            StringId format = ThemeDescGetName(wc);

            std::string str = FormatStringIDLegacy(format, args);

            return getStringWidth(str, FontStyle::medium);
        }

        int8_t GetTotalColoursUpTo(int8_t index)
        {
            int8_t numRows = 0;
            for (int32_t i = 0; i < index; ++i)
            {
                uint8_t numColours = ThemeDescGetNumColours(GetWindowClassTabIndex(i));

                if (numColours == 1 && GetTextWidth(i) >= kWindowHeaderWidth)
                {
                    numColours++;
                }

                numRows += numColours;
            }
            return numRows;
        }

        int32_t GetColourSchemeTabCount()
        {
            switch (_selectedTab)
            {
                case 1:
                    return sizeof(window_themes_tab_1_classes);
                case 2:
                    return sizeof(window_themes_tab_2_classes);
                case 3:
                    return sizeof(window_themes_tab_3_classes);
                case 4:
                    return sizeof(window_themes_tab_4_classes);
                case 5:
                    return sizeof(window_themes_tab_5_classes);
                case 6:
                    return sizeof(window_themes_tab_6_classes);
                case 7:
                    return sizeof(window_themes_tab_7_classes);
            }
            return 0;
        }

        void WindowThemesDrawTabImages(RenderTarget& rt)
        {
            for (int32_t i = 0; i < WINDOW_THEMES_TAB_COUNT; i++)
            {
                int32_t sprite_idx = window_themes_tab_sprites[i];
                if (_selectedTab == i)
                    sprite_idx += currentFrame / window_themes_tab_animation_divisor[_selectedTab];
                GfxDrawSprite(
                    rt, ImageId(sprite_idx),
                    windowPos
                        + ScreenCoordsXY{ widgets[WIDX_THEMES_SETTINGS_TAB + i].left,
                                          widgets[WIDX_THEMES_SETTINGS_TAB + i].top });
            }
        }
    };

    WindowBase* ThemesOpen()
    {
        // Check if window is already open
        auto* windowMgr = GetWindowManager();
        auto* window = windowMgr->BringToFrontByClass(WindowClass::themes);
        if (window != nullptr)
            return window;

        window = windowMgr->Create<ThemesWindow>(
            WindowClass::themes, kWindowSize, { WindowFlag::higherContrastOnPress, WindowFlag::resizable });

        return window;
    }
} // namespace OpenRCT2::Ui::Windows
