/**
 * Shape Superset - The apiShape properties get moved into the Shape object itself, and then the instance is created
 * @param physics
 * @param apiShape GameLib.D3.API.Shape
 * @param faces
 * @param uniqueAxes
 * @param uniqueEdges
 * @param vertices
 * @constructor
 */
GameLib.D3.Shape.ConvexHull = function (
	physics,
    apiShape,
    vertices,
	faces,
    uniqueAxes,
    uniqueEdges
) {
    this.physics = physics;
    this.physics.isNotCannonThrow();

    if (GameLib.Utils.UndefinedOrNull(apiShape)) {
        apiShape = {};
    }

    if (apiShape instanceof GameLib.D3.Shape.ConvexHull) {
        return apiShape;
    }

    if (GameLib.Utils.UndefinedOrNull(vertices)) {
        vertices = [];
    }
    this.vertices = vertices;

	if (GameLib.Utils.UndefinedOrNull(faces)) {
		faces = [];
	}
	this.faces = faces;

    if (GameLib.Utils.UndefinedOrNull(uniqueAxes)) {
        uniqueAxes = [];
    }
    this.uniqueAxes = uniqueAxes;

    if (GameLib.Utils.UndefinedOrNull(uniqueEdges)) {
        uniqueEdges = [];
    }
    this.uniqueEdges = uniqueEdges;

    this.vertices = this.vertices.map(function(vertex){
        if (vertex instanceof GameLib.D3.API.Vertex){
            return new GameLib.D3.Vertex(
                this.physics,
                vertex
            )
        }
        return vertex;
    }.bind(this));

    this.faces = this.faces.map(function(face){
        if (face instanceof GameLib.D3.API.Face){
            return new GameLib.D3.Face(
                this.physics,
                face
            )
        }
        return face;
    }.bind(this));

    this.uniqueAxes = this.uniqueAxes.map(function(axis){
       if (axis instanceof GameLib.API.Vector3) {
           return new GameLib.Vector3(
               this.physics,
               axis,
               this
           )
       }
       return axis;
    }.bind(this));

    this.uniqueEdges = this.uniqueEdges.map(function(edge){
        if (edge instanceof GameLib.API.Vector3) {
            return new GameLib.Vector3(
                this.physics,
                edge,
                this
            )
        }
        return edge;
    }.bind(this));

    GameLib.D3.Shape.call(
        this,
        this.physics,
        apiShape
    );
};

GameLib.D3.Shape.ConvexHull.prototype = Object.create(GameLib.D3.Shape.prototype);
GameLib.D3.Shape.ConvexHull.prototype.constructor = GameLib.D3.Shape.ConvexHull;

/**
 * Create instance
 * @returns {GameLib.D3.Shape.ConvexHull}
 */
GameLib.D3.Shape.ConvexHull.prototype.createInstance = function() {

    var faceNormals = [];

	var instance = new CANNON.ConvexPolyhedron(
		this.vertices.map(function(vertex){
			return vertex.position.instance;
		}),
		this.faces.map(function(face){
		    faceNormals.push(face.normal.instance);
		    return [face.v0index, face.v1index, face.v2index]
        })
	);

	instance.faceNormals = faceNormals;

    return instance;
};

/**
 * Update instance
 */
GameLib.D3.Shape.ConvexHull.prototype.updateInstance = function() {
    console.log('todo: update convex hull instance');
    // this.instance.vertices = this.vertices;
    // this.instance.indices = this.indices;
    // this.instance.updateAABB();
    // this.instance.updateBoundingSphereRadius();
    // this.instance.updateEdges();
    // this.instance.updateNormals();
    // this.instance.updateTree();
};

GameLib.D3.Shape.ConvexHull.prototype.loadFromInstance = function() {
    console.log('todo: eventually load the faces and vertices from the instance faces and vertices and normals');
    console.log('todo: this way we can nicely visualize them with our gamelib classes :)');
};

GameLib.D3.Shape.ConvexHull.prototype.toApiObject = function() {

    var apiShape = GameLib.D3.Shape.prototype.toApiObject.call(this);

    apiShape.vertices = this.vertices.map(
        function(vertex) {
            if (vertex instanceof GameLib.D3.Vertex) {
                return vertex.toApiObject();
            }
            return vertex;
        }
    );

    apiShape.faces = this.faces.map(
        function(face) {
            if (face instanceof GameLib.D3.Face){
                return face.toApiObject();
            }
            return face;
        }
    );

    apiShape.uniqueAxes = this.uniqueAxes.map(
        function(axis){
            if (axis instanceof GameLib.Vector3) {
                return axis.toApiObject();
            }
            return axis;
        }
    );

    apiShape.uniqueEdges = this.uniqueEdges.map(
        function(edge) {
            if (edge instanceof GameLib.Vector3) {
                return edge.toApiObject();
            }
            return edge;
        }
    );

    return apiShape;
};

GameLib.D3.Shape.ConvexHull.prototype.setFromMesh = function() {
    console.log('todo: set convex hull from mesh');
    this.updateInstance();
};

GameLib.D3.Shape.ConvexHull.InheritableProperties = function(physics, objectShape) {
    var vertices = objectShape.vertices.map(
        function(objectVertex) {
            return GameLib.D3.Vertex.FromObject(physics, objectVertex);
        }
    );

    var faces = objectShape.faces.map(
        function(objectFace) {
            return GameLib.D3.Face.FromObject(physics, objectFace);
        }
    );

    var uniqueAxes = objectShape.uniqueAxes.map(
        function(axis) {
            return GameLib.API.Vector3.FromObject(axis);
        }
    );

    var uniqueEdges = objectShape.uniqueEdges.map(
        function(edge) {
            return GameLib.API.Vector3.FromObject(edge);
        }
    );

    return {
        vertices    : vertices,
        faces       : faces,
        uniqueAxes  : uniqueAxes,
        uniqueEdges : uniqueEdges
    };
};

GameLib.D3.Shape.ConvexHull.FromObject = function(physics, objectShape) {

    var apiShape = GameLib.D3.API.Shape.FromObject(objectShape);

    var inheritableProperties = GameLib.D3.Shape.ConvexHull.InheritableProperties(physics, objectShape);

    return new GameLib.D3.Shape.ConvexHull.call(
        this,
        physics,
        apiShape,
        inheritableProperties.vertices,
        inheritableProperties.faces,
        inheritableProperties.uniqueAxes,
        inheritableProperties.uniqueEdges
    );
};