//
// Created by Palindromic Bread Loaf on 7/21/25.
//

#include <SDL2/SDL.h>
#include <iostream>
#include <fstream>
#include "system.h"

class CPU;
class PPU;
class APU;
class Bus;

int main(int argc, char* argv[]) {
    if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0) {
        std::cout << "SDL could not initialize! SDL_Error: " << SDL_GetError() << std::endl;
        return -1;
    }

    SDL_Window* window = SDL_CreateWindow(
        "BreadedSNES",
        SDL_WINDOWPOS_UNDEFINED,
        SDL_WINDOWPOS_UNDEFINED,
        256, 224,  // SNES output resolution
        SDL_WINDOW_SHOWN
    );

    if (!window) {
        std::cout << "Window could not be created! SDL_Error: " << SDL_GetError() << std::endl;
        SDL_Quit();
        return -1;
    }

    SDL_Renderer* renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
    if (!renderer) {
        std::cout << "Renderer could not be created! SDL_Error: " << SDL_GetError() << std::endl;
        SDL_DestroyWindow(window);
        SDL_Quit();
        return -1;
    }

    System snes;

    if (argc > 1) {
        if (!snes.LoadROM(argv[1])) {
            SDL_DestroyRenderer(renderer);
            SDL_DestroyWindow(window);
            SDL_Quit();
            return -1;
        }
    }

    snes.Reset();

    bool quit = false;
    SDL_Event e;

    while (!quit) {
        while (SDL_PollEvent(&e)) {
            if (e.type == SDL_QUIT) {
                quit = true;
            }
        }

        // Run emulation step
        snes.Step();

        // Clear screen
        SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
        SDL_RenderClear(renderer);

        // TODO: Render frame

        SDL_RenderPresent(renderer);
    }

    SDL_DestroyRenderer(renderer);
    SDL_DestroyWindow(window);
    SDL_Quit();

    return 0;
}