/**************************************************************************
 *
 * Copyright 2010, 2011 BMW Car IT GmbH
 * Copyright (C) 2011 DENSO CORPORATION and Robert Bosch Car Multimedia Gmbh
 *
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 ****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <unistd.h>
#include <getopt.h>
#include "WLContext.h"
#include "WLEGLSurface.h"
#include "WLEyes.h"
#include "WLEyesRenderer.h"

int gRunLoop = 0;
int gNeedRedraw = 0;
int gPointerX = 0;
int gPointerY = 0;


static void SigFunc(int)
{
    printf("Caught signal\n");
    gRunLoop = 0;
}

int main(int argc, char **argv)
{
    WLContext* wlContext;
    WLEGLSurface* eglSurface;
    WLEyes* eyes;
    int surfaceId = 5100;
    int ret = -1;

    argc = argc; // avoid warning
    argv = argv;


    // Get command-line options
    while (true){
        int c;
        static struct option opts[] = {
            {"surface", required_argument, NULL, 's'},
            {0, 0, 0, 0}
        };

        c = getopt_long(argc, argv, "s:", opts, NULL);

        if (c == -1)
            break;

        switch(c){
        case 's':
            surfaceId = strtol(optarg, NULL, 0);
            break;
        default:
            fprintf(stderr, "Unrecognized option '%s'\n", optarg);
        }
    }

    // signal handling
    signal(SIGINT,SigFunc);

    wlContext = new WLContext();
    wlContext->InitWLContext(&PointerListener, &KeyboardListener, &TouchListener);

    int const fd = wl_display_get_fd(wlContext->GetWLDisplay());

    eglSurface = new WLEGLSurface(wlContext);
    eglSurface->CreateSurface(400, 240, surfaceId);

    eyes = new WLEyes(400, 240);

    // initialize eyes renderer
    if (!InitRenderer()){
        fprintf(stderr, "Failed to init renderer\n");
        goto Error;
    }

    // draw eyes once
    DrawEyes(eglSurface, eyes);

    // wait for input event
    gRunLoop = 1;
    gNeedRedraw = 0;
    while (gRunLoop){
        if ((WaitForEvent(wlContext->GetWLDisplay(), fd) < 0)){
            gRunLoop = 0;
        }

        if (gNeedRedraw && gRunLoop){
            DrawEyes(eglSurface, eyes);
            gNeedRedraw = 0;
        }
    }

    TerminateRenderer();
    ret = 0;

Error:
    delete eyes;
    delete eglSurface;
    delete wlContext;

    return ret;
}