#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <time.h> 
#include <stdint.h>
#include <wayland-client.h>
#include <wayland-util.h>
#include <pthread.h>
#include <sys/mman.h>
#include "renderer.h"
#include "wayland.h"
#include <string.h>

struct timespec program_start;

void init_timer() {
    clock_gettime(CLOCK_MONOTONIC, &program_start);
}

double time_since_start() {
    struct timespec now;
    clock_gettime(CLOCK_MONOTONIC, &now);

    return (now.tv_sec - program_start.tv_sec) +
           (now.tv_nsec - program_start.tv_nsec) / 1e9;
}

int main(int argc, char *argv[]) {
    char *shader_path = NULL;
    int output_type = OUTPUT_WINDOW;
    if (argc >= 2) {
        shader_path = argv[1];
    } else {
        printf("need to supply path to shader\n");
        exit(1);
    }
    if (argc >= 3) {
        // xdg toplevel window (window) or wlr_layer_shell window (layer)
        if (strcmp(argv[2], "window")) {
            output_type = OUTPUT_WINDOW;
        } else if (strcmp(argv[2], "layer")) {
            output_type = OUTPUT_LAYER;
        }
    }

    struct client_state state;
    wayland_init(&state, output_type);

    Renderer renderer = new_renderer();

    while (state.running) {
        double time = time_since_start();
        render(&renderer, state.width, state.height, time, shader_path, 0);
        commit(&state);
    }

    return 0;
}