#include <stdio.h>
#include <stdlib.h>
#include <sysexits.h>
#include <signal.h>

#include <string>

#include "configuration.h"
#include "miniwebcam.h"

int running = 1;

static void sig_int(int);   
int SetupSignals();
VideoFrame inputimage;
VideoFrame currentimage;

void ErrorExit(std::string text, int errorcode) {
    printf ("Error: %s\n", text.c_str());
    exit (errorcode);
};


int main(int argc, char **argv) {
    printf ("MiniWebCam:\n");
    if (SetupSignals() == 0) return 0;

    config.LoadArgs (argc, argv);
    config.LoadFile (config.GetFilename());
    if (config.GetInitFlags() & CONF_INITFLAGS_PRINT) {
        config.PrintConfig();
        return 0;
    }

    if (config.GetInitFlags() & CONF_INITFLAGS_HELP) {
        config.Help();
        return 0;
    }

    VideoDevice_V4L2 vdev;
    WebCamServer webserver;
    currentimage.TestScreen(1920, 1080);

    webserver.SetupPorts(config.http_port, config.https_port);
    webserver.SetupSSL(config.ssl_key, config.ssl_cert);
    webserver.Start();

    if (vdev.SetDevice (config.vdev_device, config.vdev_width, config.vdev_height, convert_to_pixelformat(config.vdev_format)) == 0) {
        debug ("could not setup device.\n");
        return 0;
    }

    if (vdev.SetIOMode (config.vdev_iomode) == 0) {
        debug ("could not setup iomode.\n");
        return 0;
    }

    if (vdev.Start() == 0) {
        debug ("Error: could not start video.\n");
        return 0;
    }

    currentimage.SetSize (config.web_width, config.web_height);

    while (running) {
        if (vdev.GetFrame(&inputimage) == 0) {
            vdev.Stop();
            vdev.Start();
        }
        inputimage.CopyTo(&currentimage, config.web_width, config.web_height);
        
        webserver.Loop();
        usleep (1000);
    }

    vdev.Stop();
    webserver.Stop();

	return 0;
};


int SetupSignals() {
    if (signal(SIGINT, sig_int) == SIG_ERR) {
        errorexit ("%s:%d could not set signal for SIGINT\n", __FILE__, __LINE__);
        return 0;
    }
    if (signal(SIGTERM, sig_int) == SIG_ERR) {
        errorexit ("%s:%d could not set signal for SIGTERM\n", __FILE__, __LINE__);
        return 0;
    }
    if (signal(SIGHUP, sig_int) == SIG_ERR) {
        errorexit ("%s:%d could not set signal for SIGHUB\n", __FILE__, __LINE__);
        return 0;
    }
    if (signal(SIGUSR1, sig_int) == SIG_ERR) {
        errorexit ("%s:%d could not set signal for SIGHUB\n", __FILE__, __LINE__);
        return 0;
    }
    return 1;
};

static void sig_int(int sig) {
    if (signal (SIGINT, sig_int) == SIG_ERR) errorexit ("could not set up signal SIGINT\n");

    printf ("\n\nSignal Int\n\n");

    running = 0;
}