#pragma once

#include "page.h"
#include "db/database_manager.h"
#include "text_cache.h"
#include <SDL3_ttf/SDL_ttf.h>
#include <cstdint>
#include <string>
#include <vector>

// The always-on top-level proclamation. It can neither be selected nor
// deselected, is never shown inside a category, and is always flagged as
// selected in the database. Set this to the correct proclamation ID.
constexpr const char* DEFAULT_PROPLEAMATION_ID = "f3d42354-3197-45e4-9b08-be447f14386d";

// Display name used for the always-on top-level proclamation.
constexpr const char* DEFAULT_PROPLEAMATION_NAME = "Synchronize, Harmonize & Energize";

class ProclamationOptionsPage : public Page {
public:
    void onPush(AppState& state) override;
    void onResume(AppState& state) override;
    void onPause(AppState& state) override;
    void onPop(AppState& state) override;
    void handleEvent(const SDL_Event& event) override;
    void update(float dt) override;
    void render(SDL_Renderer* renderer) override;

private:
    struct FlatItem {
        enum class Type { RootCategory, SubCategory, Proclamation };

        Type type = Type::Proclamation;
        std::string id;         // category id or proclamation id
        std::string label;      // display text
        int depth = 0;          // 0 = root category / default, 1 = sub-category, 2 = proclamation
        bool expanded = false;  // categories only
        bool selected = false;  // proclamations only
        bool isDefault = false; // the always-on top-level proclamation
    };

    void loadFromDb();
    void rebuildItems();
    void rebuildVisible();
    void toggleItem();
    void toggleSearchItem();
    void collapseCurrent();
    void expandCurrent();
    void moveToParent();
    void saveSelectionToDb();
    void clearAllSelections();
    void ensureHighlightVisible();
    void scrollTo(int target);
    void createFonts();
    void destroyFonts();
    void destroyTextures();

    // Search mode. Activates on the first typed character and filters the
    // flat proclamation pool (title + content) with word-prefix matching.
    void enterSearchMode();
    void exitSearchMode();
    void rebuildSearchResults();
    void appendSearchText(const char* utf8);
    bool searchActive() const { return searchActive_; }
    int activeListSize() const;

    AppState* state_ = nullptr;
    std::vector<radiantwave::db::ProclamationRecord> proclamations_;
    std::vector<radiantwave::db::ProclamationCategoryRecord> categories_;
    std::vector<FlatItem> items_;
    std::vector<size_t> visible_;       // indices into items_, in display order
    std::vector<size_t> searchResults_; // indices into proclamations_, search mode
    std::vector<std::string> searchPool_; // lowercase title + content per proclamation
    int highlightIndex_ = 0;            // index into the active list
    int scrollOffset_ = 0;
    int visibleCount_ = 8;              // rows that fit on screen (recomputed each frame)
    std::string statusMessage_;

    bool searchActive_ = false;
    std::string searchQuery_;

    TTF_Font* fontTitle_ = nullptr;
    TTF_Font* fontItem_ = nullptr;
    TTF_Font* fontSmall_ = nullptr;

    CachedText titleText_;
    CachedText statusText_;
    CachedText searchText_;
    CachedText emptyHintText_;
    CachedText footerText_;
    std::vector<CachedText> rowTexts_;
    std::vector<CachedText> searchRowTexts_; // indexed by proclamations_ id
};