#pragma once

#include <XCEditor/Shell/UIEditorMenuModel.h>
#include <XCEngine/UI/DrawData.h>

#include <cstddef>
#include <cstdint>
#include <string>
#include <string_view>
#include <vector>

namespace XCEngine::UI::Editor::Widgets {

inline constexpr std::size_t UIEditorMenuPopupInvalidIndex =
    static_cast<std::size_t>(-1);

struct UIEditorMenuPopupItem {
    std::string itemId = {};
    ::XCEngine::UI::Editor::UIEditorMenuItemKind kind =
        ::XCEngine::UI::Editor::UIEditorMenuItemKind::Command;
    std::string label = {};
    std::string shortcutText = {};
    bool enabled = true;
    bool checked = false;
    bool hasSubmenu = false;
    float desiredLabelWidth = 0.0f;
    float desiredShortcutWidth = 0.0f;
};

struct UIEditorMenuPopupState {
    std::size_t hoveredIndex = UIEditorMenuPopupInvalidIndex;
    std::size_t submenuOpenIndex = UIEditorMenuPopupInvalidIndex;
    bool focused = false;
};

struct UIEditorMenuPopupMetrics {
    float contentPaddingX = 6.0f;
    float contentPaddingY = 6.0f;
    float itemHeight = 28.0f;
    float separatorHeight = 9.0f;
    float checkColumnWidth = 18.0f;
    float shortcutGap = 20.0f;
    float submenuIndicatorWidth = 14.0f;
    float rowCornerRounding = 5.0f;
    float popupCornerRounding = 8.0f;
    float labelInsetX = 14.0f;
    float labelInsetY = -1.0f;
    float labelFontSize = 13.0f;
    float shortcutInsetRight = 24.0f;
    float estimatedGlyphWidth = 7.0f;
    float glyphFontSize = 12.0f;
    float separatorThickness = 1.0f;
    float borderThickness = 1.0f;
};

struct UIEditorMenuPopupPalette {
    ::XCEngine::UI::UIColor popupColor =
        ::XCEngine::UI::UIColor(0.17f, 0.17f, 0.17f, 1.0f);
    ::XCEngine::UI::UIColor borderColor =
        ::XCEngine::UI::UIColor(0.31f, 0.31f, 0.31f, 1.0f);
    ::XCEngine::UI::UIColor itemHoverColor =
        ::XCEngine::UI::UIColor(0.28f, 0.28f, 0.28f, 1.0f);
    ::XCEngine::UI::UIColor itemOpenColor =
        ::XCEngine::UI::UIColor(0.34f, 0.34f, 0.34f, 1.0f);
    ::XCEngine::UI::UIColor separatorColor =
        ::XCEngine::UI::UIColor(0.32f, 0.32f, 0.32f, 1.0f);
    ::XCEngine::UI::UIColor textPrimary =
        ::XCEngine::UI::UIColor(0.94f, 0.94f, 0.94f, 1.0f);
    ::XCEngine::UI::UIColor textMuted =
        ::XCEngine::UI::UIColor(0.76f, 0.76f, 0.76f, 1.0f);
    ::XCEngine::UI::UIColor textDisabled =
        ::XCEngine::UI::UIColor(0.50f, 0.50f, 0.50f, 1.0f);
    ::XCEngine::UI::UIColor glyphColor =
        ::XCEngine::UI::UIColor(0.90f, 0.90f, 0.90f, 1.0f);
};

struct UIEditorMenuPopupLayout {
    ::XCEngine::UI::UIRect popupRect = {};
    ::XCEngine::UI::UIRect contentRect = {};
    std::vector<::XCEngine::UI::UIRect> itemRects = {};
};

enum class UIEditorMenuPopupHitTargetKind : std::uint8_t {
    None = 0,
    PopupSurface,
    Item
};

struct UIEditorMenuPopupHitTarget {
    UIEditorMenuPopupHitTargetKind kind = UIEditorMenuPopupHitTargetKind::None;
    std::size_t index = UIEditorMenuPopupInvalidIndex;
};

float ResolveUIEditorMenuPopupDesiredWidth(
    const std::vector<UIEditorMenuPopupItem>& items,
    const UIEditorMenuPopupMetrics& metrics = {});

float MeasureUIEditorMenuPopupHeight(
    const std::vector<UIEditorMenuPopupItem>& items,
    const UIEditorMenuPopupMetrics& metrics = {});

UIEditorMenuPopupLayout BuildUIEditorMenuPopupLayout(
    const ::XCEngine::UI::UIRect& popupRect,
    const std::vector<UIEditorMenuPopupItem>& items,
    const UIEditorMenuPopupMetrics& metrics = {});

UIEditorMenuPopupHitTarget HitTestUIEditorMenuPopup(
    const UIEditorMenuPopupLayout& layout,
    const std::vector<UIEditorMenuPopupItem>& items,
    const ::XCEngine::UI::UIPoint& point);

void AppendUIEditorMenuPopupBackground(
    ::XCEngine::UI::UIDrawList& drawList,
    const UIEditorMenuPopupLayout& layout,
    const std::vector<UIEditorMenuPopupItem>& items,
    const UIEditorMenuPopupState& state,
    const UIEditorMenuPopupPalette& palette = {},
    const UIEditorMenuPopupMetrics& metrics = {});

void AppendUIEditorMenuPopupForeground(
    ::XCEngine::UI::UIDrawList& drawList,
    const UIEditorMenuPopupLayout& layout,
    const std::vector<UIEditorMenuPopupItem>& items,
    const UIEditorMenuPopupState& state,
    const UIEditorMenuPopupPalette& palette = {},
    const UIEditorMenuPopupMetrics& metrics = {});

void AppendUIEditorMenuPopup(
    ::XCEngine::UI::UIDrawList& drawList,
    const ::XCEngine::UI::UIRect& popupRect,
    const std::vector<UIEditorMenuPopupItem>& items,
    const UIEditorMenuPopupState& state,
    const UIEditorMenuPopupPalette& palette = {},
    const UIEditorMenuPopupMetrics& metrics = {});

} // namespace XCEngine::UI::Editor::Widgets