#define SDL_MAIN_USE_CALLBACKS 1 /* use the callbacks instead of main() */

#include <SDL3/SDL.h>
#include <SDL3/SDL_events.h>
#include <SDL3/SDL_init.h>
#include <SDL3/SDL_keyboard.h>
#include <SDL3/SDL_keycode.h>
#include <SDL3/SDL_log.h>
#include <SDL3/SDL_main.h>
#include <SDL3/SDL_render.h>
#include <SDL3/SDL_video.h>
#include <SDL3_ttf/SDL_ttf.h>
#include "fileCommon.h"
#include "game.h"
#include "window.h"

Game game;
Window window;
TTF_Font *font = nullptr;
SDL_Texture *font_texture = nullptr;

fs::path fontPath("Resources/Pixelzone-E4MV4.ttf");


void EditRooms() {

    fs::path path("Resources/rooms.json");

    std::vector<std::vector<Room>> roomDat = {
            {
                    {
                            0,
                            "Test Room 1",
                            "First Test Room",
                            {{0, S, false}, {1, E, false}},
                            {
                                    {0, "Rock", "A Grey Rock", {"Rock"}, ObjectType::SCENERY, false, 0},
                            },
                    },
                    {1,
                     "Test Room 2",
                     "A court yard",
                     {{2, W, false}, {3, E, false}, {4, S, false}},
                     {{1,
                       "Tree",
                       "A fine looking Tree stands in the courtyard",
                       {"Tree"},
                       ObjectType::SCENERY,
                       false,
                       1}}},

            },
            {{3,
              "Test Room 3",
              "You can hear the sound of a waterfall nearby",
              {{5, N, false}, {6, E, false}},
              {{3, "Waterfall", "A fine waterfall on a cliff", {"Waterfall"}, ObjectType::SCENERY, false, 3}}}}};

    nlohmann::json j(roomDat);
    SaveJsonFile(path, j);
}


SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[]) {
    SDL_Surface *text;
    SDL_Color color = {255, 255, 255, SDL_ALPHA_OPAQUE};

    if (SDL_Init(SDL_INIT_VIDEO) == false) {
        SDL_Log("SDL could not initialize! SDL error: %s\n", SDL_GetError());
    }

    SDL_AppResult result = window.CreateWindow(600, 800);

    if (result != SDL_APP_CONTINUE) {
        return result;
    }

    if (!TTF_Init()) {
        SDL_Log("Couldn't initialize SDL_ttf: %s\n", SDL_GetError());
        return SDL_APP_FAILURE;
    }

    font = TTF_OpenFont(fs::absolute(fontPath).c_str(), 12.0f);
    text = TTF_RenderText_Blended(font, "Hello World!", 0, color);
    if (text) {
        font_texture = SDL_CreateTextureFromSurface(window.GetRenderer(), text);
        SDL_DestroySurface(text);
    }
    if (!font_texture) {
        SDL_Log("Couldn't create text: %s\n", SDL_GetError());
        return SDL_APP_FAILURE;
    }

    if (!game) {
        game.Init();
        Game::SetGameInstance(&game);
        game.SetIsActive(true);
        SDL_StartTextInput(window.GetWindow());
    } else {
        printf("Game Initalization failed! \n");
        return SDL_APP_FAILURE;
    }

    return SDL_APP_CONTINUE;
}

SDL_AppResult SDL_AppEvent(void *appstate, SDL_Event *event) {
    if (event->type == SDL_EVENT_QUIT || !game.GetIsActive()) {
        return SDL_APP_SUCCESS; /* end the program, reporting success to the OS. */
    }

    if (event->type == SDL_EVENT_KEY_DOWN) {
        if (event->key.key == SDLK_ESCAPE) {
            SDL_StopTextInput(window.GetWindow());
            game.SetIsActive(false);
        }

        if (event->key.key == SDLK_RETURN) {
            SDL_StopTextInput(window.GetWindow());
        }
    }

    if (event->type == SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED) {
        window.Resize(event->window.data1, event->window.data2);
    }

    return SDL_APP_CONTINUE;
}

SDL_AppResult SDL_AppIterate(void *appstate) {
    if (game.GetIsActive()) {

        SDL_SetRenderDrawColor(window.GetRenderer(), 0, 0, 0, 255); // Set render draw color to black
        SDL_RenderClear(window.GetRenderer()); // Clear the renderer
        int w = 0, h = 0;
        SDL_FRect dst;
        const float scale = 4.0f;

        /* Center the text and scale it up */
        SDL_GetRenderOutputSize(window.GetRenderer(), &w, &h);
        SDL_SetRenderScale(window.GetRenderer(), scale, scale);
        SDL_GetTextureSize(font_texture, &dst.w, &dst.h);
        SDL_RenderTexture(window.GetRenderer(), font_texture, NULL, &dst);
        SDL_RenderPresent(window.GetRenderer()); // Render the screen

        // game.Run();
    }

    return SDL_APP_CONTINUE;
}

void SDL_AppQuit(void *appstate, SDL_AppResult result) {
    if (result == SDL_APP_SUCCESS) {
        window.Close();
        TTF_CloseFont(font);
        SDL_Quit();
    }
}