#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include "../src/ax.h"
#include "../src/ctxt.h"
#include "../src/backend.h"

#include "../src/util/region.h"
#include "../src/concurrent/msg.h"
#include "../src/concurrent/pubsub.h"

struct rgn* rgn = NULL;
struct ax_ctxt* ax = NULL;

static void cleanup()
{
    if (rgn != NULL) {
        rgn_cleanup(rgn);
        rgn = NULL;
    }

    ax_free(ax);
    ax = NULL;
}

static void sigint_handler(int signum)
{
    printf("\nCaught interrupt.\n");
    // cleanup();
    exit(0);
}

static struct ax_window* make_window()
{
    ax_begin_window(ax);
    ax_set_window_title(ax, "Test App");
    ax_set_window_size(ax, 1000, 400, false);
    return ax_end_window(ax);
}

static struct ax_theme* make_example_theme()
{
    ax_begin_theme(ax);
    ax_set_theme_color(ax, "primary", 0x00ff00);
    ax_set_theme_font(ax, "default", "/usr/share/fonts/TTF/DejaVuSans.ttf", 0);
    ax_set_theme_font(ax, "h1", NULL, 95);
    return ax_end_theme(ax);
}

int main(void)
{
    signal(SIGINT, sigint_handler);

    ax = ax_new();
    ax_set_logger(ax, fileno(stdout), false);

    rgn = rgn_bootstrap_new(SMALL);

    int rv = 0;
#define GUARD(f) if ((rv = f) != 0) goto ax_fail;

    struct ax_window* win = make_window();
    struct ax_theme* thm = make_example_theme();

    ax_theme_wait_until_loaded(ax, thm);
    printf("it loaded!\n");

    GUARD(ax_select_theme(ax, thm));
    GUARD(ax_select_window(ax, win));

    struct sub* ev_sub = ax__backend_sub_events(ax->bac, rgn);
    for (bool quit = false; !quit; ) {
        sub_begin_recv_and_wait(ev_sub);
        SUB_RECV_ALL(ev_sub) {

            ON(ax_msg_window_closed,
               {
                   if (m.win == win) {
                       quit = true;
                   }
                   break;
               });

            default:
                printf("got a message: %s\n", ax__msg_name(m_type));
                break;
        }
        sub_end_recv(ev_sub);
    }

    cleanup();
    return 0;

ax_fail:
    printf("ERROR: %s\n", ax_get_error(ax));
    cleanup();
    return rv;
}