var mesh_number = 25;
var renderer, scene, controls, cube, container, plane, mouse= {x:0, y:0};
var bigmesh;
var raycaster;
var objects = [];
var cameras = new CameraContainer();
var spheres = new Array(mesh_number);
var visible = 0;
var stats;

var loader;

var container_size = {width: 1067, height: 600};

init();
animate();

function init() {
    // on initialise le moteur de rendu
    container = document.getElementById('container');
    container.style.height = container_size.height + 'px';
    container.style.width = container_size.width + 'px';
    renderer = new THREE.WebGLRenderer({alpha:true});
    renderer.setSize(container_size.width, container_size.height);
    renderer.shadowMapEnabled = true;
    renderer.setClearColor(0x87ceeb);
    renderer.sortObjects = false

    // on initialise la scène
    scene = new THREE.Scene();
    raycaster = new THREE.Raycaster();

    // Create stats counter
    stats = new Stats();
    stats.setMode(0);

    stats.domElement.style.position = 'absolute';
    stats.domElement.style.cssFloat = "top-left";
    container.appendChild( stats.domElement );
    container.appendChild(renderer.domElement);

    // init light
    // var directional_light = new THREE.DirectionalLight(0x999999);
    // directional_light.position.set(1, 0.5, 1).normalize();
    // directional_light.castShadow = true;
    // scene.add(directional_light);

    var ambient_light = new THREE.AmbientLight(0xffffff);
    scene.add(ambient_light);

    // on initialise la camera que l’on place ensuite sur la scène
    var camera1 = new PointerCamera(50, container_size.width / container_size.height, 0.01, 100000, container);
    camera1.speed = 0.001;
    scene.add(camera1);
    cameras.push(camera1);

    var loader = new THREE.OBJMTLLoader();

    var onProgress = function ( xhr ) {
        if ( xhr.lengthComputable ) {
            var percentComplete = xhr.loaded / xhr.total * 100;
            console.log( Math.round(percentComplete, 2) + '% downloaded' );
        }
    };

    var onError = function ( xhr ) {
    };

    // THREE.Loader.Handlers.add( /\.dds$/i, new THREE.DDSLoader() );
    var loader = new THREE.OBJMTLLoader();
        loader.load( '/data/castle/princess peaches castle (outside).obj',
                 '/data/castle/princess peaches castle (outside).mtl',
    function ( object ) {
        object.up = new THREE.Vector3(0,0,1);
        scene.add(object);
        object.traverse(function (object) {
            if (object instanceof THREE.Mesh) {
                object.geometry.mergeVertices();
                object.material.side = THREE.DoubleSide;
                if (object.material.name === 'Material.103_princess_peaches_cast') {
                    console.log(object.material.name);
                    object.material.transparent = true;
                }
            }
        });
    }, onProgress, onError );

    loader.load( '/data/first/Floor 1.obj',
                 '/data/first/Floor 1.mtl',
    function ( object ) {
        object.position.z -= 10.9;
        object.position.y += 0.555;
        object.position.x += 3.23;

        var theta = 0.27;
        object.rotation.y = Math.PI - theta;

        object.up = new THREE.Vector3(0,0,1);
        scene.add(object);
        object.traverse(function (object) {
            if (object instanceof THREE.Mesh) {
                object.material.side = THREE.DoubleSide;
                console.log(object.geometry.vertices.length);
                object.geometry.mergeVertices();
                if (object.material.name === 'Material.054_777F0E0B_c.bmp' ||
                    object.material.name === 'Material.061_5C3492AB_c.bmp'   ) {
                    object.material.transparent = true;
                }
            }
        });
    }, onProgress, onError );


    // var camera3 = new FixedCamera(
    //         50,
    //         container_size.width / container_size.height,
    //         1,
    //         100000,
    //         new THREE.Vector3(500,0,500),
    //         new THREE.Vector3(0,0,0)
    // );

    // camera3.addToScene(scene);
    // cameras.push(camera3);

    window.addEventListener('resize', onWindowResize, false);

    container.addEventListener('mousedown', click, false);

    // Load the scene
    loadScene();


}

function loadScene() {

}

function animate() {
    // on appelle la fonction animate() récursivement à chaque frame
    requestAnimationFrame(animate);

    stats.begin();
    cameras.update(cameras.mainCamera().position);
    cameras.look();

    renderer.render(scene, cameras.mainCamera());
    stats.end();
}

function onWindowResize() {
    cameras.forEach(function(camera) {camera.aspect = container.offsetWidth / container.offsetHeight;});
    cameras.forEach(function(camera) {camera.updateProjectionMatrix();});

    renderer.setSize(container.offsetWidth, container.offsetHeight);
    renderer.render(scene, cameras.mainCamera());
}

function hide(object) {
    object.traverse(function(object) {object.visible = false;});
}

function show(object) {
    object.traverse(function(object) {object.visible = true;});
}

function click(event) {
    var mouse = {
        x:   ((event.clientX - renderer.domElement.offsetLeft) / renderer.domElement.width ) * 2 - 1,
        y: - ((event.clientY - renderer.domElement.offsetTop)  / renderer.domElement.height) * 2 + 1
    }

    var camera = cameras.mainCamera();
    var vector = new THREE.Vector3(mouse.x, mouse.y, 0.5);
    vector.unproject(camera);

    raycaster.set(camera.position, vector.sub(camera.position).normalize());

    var intersects = raycaster.intersectObjects(scene.children, true);

    if ( intersects.length > 0 ) {
        var minDistance;
        var bestIndex;

        // Looking for cameras
        for (i in intersects) {
            if ((intersects[i].distance > 50 && minDistance === undefined) || (intersects[i].distance < minDistance )) {
                // We will not consider a line as clickable
                if (! (intersects[i].object instanceof THREE.Line)) {
                    minDistance = intersects[i].distance;
                    bestIndex = i;
                }
            }
        }

        if (bestIndex !== undefined) {
            if (cameras.getById(intersects[bestIndex].object.id) !== undefined) {
                var new_camera = cameras.getById(intersects[bestIndex].object.id);
                cameras.get(0).move(new_camera);
            }
        }

        // Looking for objects
        for (o in objects) {
            if ( intersects[bestIndex].object.id == objects[o].id && cameras.get(objects[o].seen_by[0]) !== undefined) {
                var new_camera = cameras.get(objects[o].seen_by[0]);
                cameras.get(0).move(new_camera);
                break;
            }
        }
    }

    // var pos = cameras.mainCamera().position;
    // var target = cameras.mainCamera().target
    // console.log("Position = ", pos.x, pos.y, pos.z);
    // console.log("Target   = ", target.x, target.y, target.z);
}