#include <SDL3/SDL.h>
#include <SDL3/SDL_events.h>
#include <SDL3/SDL_render.h>
#include <SDL3/SDL_timer.h>
#include <cstdio>
#include <cstdlib>
#include "../include/gfx.hpp"

bool key_event(SDL_Event e) {
    if (e.type == SDL_EVENT_KEY_DOWN) {
        if (e.key.key == SDLK_Q) {
            return true;
        }
    }
    return false;
}

bool event_handling(SDL_Event e) {
    while (SDL_PollEvent(&e)) {
        if (e.type == SDL_EVENT_QUIT) {
            return true;
        }
        if (key_event(e)) {
            return true;
        }
    }
    return false;
}

int main() {
    if (!SDL_Init(SDL_INIT_VIDEO)){ 
        std::printf("SDL_INIT() failed");
        return EXIT_FAILURE;
    }

    SDL_Window *window;
    window = SDL_CreateWindow("Physics Sim", 720, 540, SDL_WINDOW_RESIZABLE);
    if (window == NULL) {
        std::printf("SDL_CreateWindow() failed");
        return EXIT_FAILURE;
    }

    SDL_Renderer *renderer = SDL_CreateRenderer(window, NULL);
    if (renderer == NULL) {
        std::printf("SDL_CreateRenderer() failed");
    }

    SDL_Event e;

    bool exit = false;
    struct {
        int x;
        int y;
    } circle_pos;
    circle_pos = {10, 10};
    while (!exit) {
        exit = event_handling(e);
        SDL_SetRenderDrawColor(renderer, 0, 0, 0, 0);
        SDL_RenderClear(renderer);
        gfx::draw_circle(renderer, circle_pos.x, circle_pos.y, 10);
        circle_pos.x++;
        SDL_RenderPresent(renderer);
        SDL_Delay(16);
    }

    SDL_Quit();
    return 0;
}