#include "../include/app.h"
#include <GL/gl.h>
#include <stdlib.h>
#include <time.h>
#include <GL/glu.h>

#define SHADOWMAP_SIZE 2048
int main()
{
    struct timespec start;
    struct timespec end;
    App app;
    ChunkManager cm;
    app.cm = &cm;
    init_app(&app, 1600, 900);

    /////
	while(app.is_running) {
        clock_gettime(CLOCK_MONOTONIC_RAW, &start);
        
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        handle_events(&app);
        update_app(&app);

        set_view(&app.camera);
        reshape(1600, 900);


        glMatrixMode(GL_MODELVIEW);
        for (int i = 0; i < app.cm->chunk_count; i++) {
            chunk_render(&app.cm->chunks[i]);
            //printf("c sp: %f\n", app.chunks[i].start_pos.x);
        }


        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        glOrtho(0, 1600, 900, 0, -1, 1);
        glMatrixMode(GL_MODELVIEW);
        glLoadIdentity();

        glColor3f(1, 0, 0);//white
        glLineWidth(2.0);
        glBegin(GL_LINES);
        //horizontal line
        glVertex2i(1600 / 2 - 7, 900 / 2);
        glVertex2i(1600 / 2 + 7, 900 / 2);
        glEnd();
        //vertical line
        glBegin(GL_LINES);
        glVertex2i(1600 / 2, 900 / 2 + 7);
        glVertex2i(1600 / 2, 900 / 2 - 7);
        glEnd();


        vec3f pos = app.camera.position; 
        vec3f dir = get_camera_dir_vec3f(&app.camera);

        draw_cube(app.cm, 0, pos.x + dir.x * 2, pos.y + dir.y * 2, pos.z + dir.z * 2, 1.0); 

        SDL_GL_SwapWindow(app.window);

        clock_gettime(CLOCK_MONOTONIC_RAW, &end);
        app.frame_time = calc_frame_time(&start, &end);

        //printf("fps: %f\n", 1000/app.frame_time);
        //printf("lkat pos x: %f y: %f z: %f\n", pos.x+5*dir.x, pos.y+5*dir.y, pos.z+5*dir.z);
        //printf("camera x: %f y: %f z: %f\n", pos.x, pos.y, pos.z);
        //printf("dir x: %f y: %f z: %f\n", dir.x, dir.y, dir.z);
        //printf("dird x: %f y: %f z: %f\n", app.camera.rotation.x, app.camera.rotation.y, app.camera.rotation.z);
    }

    return 0;
}