#include "program.h"
#include "tilemap.h"
#include "camera.h"
#include "sprite.h"
#include <SDL2/SDL_video.h>
#include <SDL2/SDL_image.h>

SDL_Window* g_window;
double g_delta_time;
double g_frame_start;


#define INITFLAGS SDL_INIT_EVENTS | SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_GAMECONTROLLER

int program_run(const struct ProgramSettings* settings) {
    SDL_Init(INITFLAGS);

    g_window = SDL_CreateWindow(
        settings->title,
        SDL_WINDOWPOS_CENTERED_DISPLAY(0),
        SDL_WINDOWPOS_CENTERED_DISPLAY(0),
        settings->view_resolution.x,
        settings->view_resolution.y,
        SDL_WINDOW_FULLSCREEN | SDL_WINDOW_RESIZABLE);

    render_init(g_window, settings);
    camera_init();

    Spritesheet* sheet = spritesheet_from_texture("resources/player.png", (IVector){64, 64});
    Sprite* sprite = sprite_from_spritesheet(sheet);

    for(;;) {
        SDL_Delay(1);
        program_handle_events();
        sprite_draw(sprite, IdentityTransform);
        render_present();
    }

    return 1;
}

void program_quit() {
    render_clean();
    SDL_DestroyWindow(g_window);
    SDL_Quit();
    exit(0);
}

void program_handle_events() {
    SDL_Event event;
    while(SDL_PollEvent(&event)) {
        switch(event.type) {
            default: break;
            case SDL_WINDOWEVENT:
                if(event.window.windowID == SDL_GetWindowID(g_window)) {
                    program_handle_windowevent(&event.window);
                }
                break;
            case SDL_QUIT:
                program_quit();
                break;
        }
    }
}

void program_handle_windowevent(SDL_WindowEvent* event) {
    switch(event->type) {
        default:
            render_handle_resize();
            break;
    }
}