/**
 * Mesh Superset - The apiMesh properties get moved into the Mesh object itself, and then the instance is created
 * @param graphics R3.GraphicsRuntime
 * @param apiMeshPlane
 * @constructor
 */
R3.D3.Mesh.Plane = function (
    graphics,
    apiMeshPlane
) {

    this.graphics = graphics;
    this.graphics.isNotThreeThrow();

    if (R3.Utils.UndefinedOrNull(apiMeshPlane)) {
        apiMeshPlane = {
            meshType : R3.D3.API.Mesh.MESH_TYPE_PLANE
        };
    }

    R3.D3.API.Mesh.Plane.call(
        this,
        apiMeshPlane,
        apiMeshPlane.width,
        apiMeshPlane.height,
        apiMeshPlane.widthSegments,
        apiMeshPlane.heightSegments,
        apiMeshPlane.heightMapScale,
        apiMeshPlane.isHeightMap,
        apiMeshPlane.isDotMap,
        apiMeshPlane.dotMapScale,
        apiMeshPlane.dotMapOffset,
        apiMeshPlane.dotMapWeight,
        apiMeshPlane.dotObject
    );

    this.dotMapScale = new R3.Vector3(
        this.graphics,
        this.dotMapScale,
        this
    );

    this.dotMapOffset = new R3.Vector3(
        this.graphics,
        this.dotMapOffset,
        this
    );

    this.dotMapWeight = new R3.Vector3(
        this.graphics,
        this.dotMapWeight,
        this
    );

    this.dots = [];

    R3.D3.Mesh.call(
        this,
        graphics,
        apiMeshPlane
    );
    
};

R3.D3.Mesh.Plane.prototype = Object.create(R3.D3.Mesh.prototype);
R3.D3.Mesh.Plane.prototype.constructor = R3.D3.Mesh.Plane;

R3.D3.Mesh.Plane.prototype.createInstance = function() {

    var geometry = null;

    /**
     * If this geometry is not coming from the database, apply the vertex data from the instance to our runtime object
     */
    if (this.vertices.length === 0) {

		geometry = new THREE.PlaneGeometry(
			this.width,
			this.height,
			this.widthSegments,
			this.heightSegments
		);

		this.updateVerticesFromGeometryInstance(geometry);

		/**
         * If this is a heightmap - first generate the z-coordinates
         */
        if (this.isHeightMap) {
            this.generateHeightMapFromBumpMap();
        }
    }

	/**
	 * Now construct the mesh instance
	 */
    R3.D3.Mesh.prototype.createInstance.call(this);

    if (this.isDotMap && this.dotObject) {
        this.generateDotMap();
    }
};

/**
 *
 */
R3.D3.Mesh.Plane.prototype.updateInstance = function(property) {

	var geometry = null;

	if (
	    property === 'width' ||
	    property === 'height' ||
	    property === 'widthSegments' ||
	    property === 'heightSegments' ||
	    property === 'isHeightMap' ||
	    property === 'heightMapScale'
    ) {

        geometry = new THREE.PlaneGeometry(
            this.width,
            this.height,
            this.widthSegments,
            this.heightSegments
        );

        this.updateVerticesFromGeometryInstance(geometry);

        if (this.isHeightMap) {
            this.generateHeightMapFromBumpMap();
        }

        geometry = this.createInstanceGeometry();

        this.instance.geometry = geometry;
    }

    if (
        property === 'isDotMap' ||
        property === 'dotMapScale' ||
        property === 'dotMapOffset' ||
        property === 'dotMapWeight' ||
        property === 'dotObject'
    ) {
        this.dots.map(
            function(dot){
                this.parentScene.instance.remove(dot);
                dot.geometry.dispose();
                dot.material.dispose();
            }.bind(this)
        );

	    if (this.isDotMap) {
            this.generateDotMap();
        }

    }

    R3.D3.Mesh.prototype.updateInstance.call(this, property);
};

/**
 * Converts a R3.D3.Mesh.Plane to a R3.D3.API.Mesh.Plane
 * @returns {R3.D3.API.Mesh.Plane}
 */
R3.D3.Mesh.Plane.prototype.toApiObject = function() {

    var apiMesh = R3.D3.Mesh.prototype.toApiObject.call(this);

    var apiMeshPlane = new R3.D3.API.Mesh.Plane(
        apiMesh,
        this.width,
        this.height,
        this.widthSegments,
        this.heightSegments,
        this.heightMapScale,
        this.isHeightMap,
        this.isDotMap,
        this.dotMapScale.toApiObject(),
        this.dotMapOffset.toApiObject(),
        this.dotMapWeight.toApiObject(),
        R3.Utils.IdOrNull(this.dotObject)
    );

    return apiMeshPlane;
};




R3.D3.Mesh.Plane.prototype.generateDotMap = function() {

    this.dots = [];

    var data = this.getHeightData();

    var width = Math.sqrt(data.length);
    var height = width;

    for (var x = 0; x < width; x++) {
        for (var y = 0; y < height; y++ ) {

            var z = data[(y * width) + x];

            if (z < 0.1) {
                continue;
            }

            var geometry;
            var material;

            if (this.dotObject) {
                geometry = this.dotObject.instance.geometry.clone();
                material = this.dotObject.materials[0].instance;
            } else {
                geometry = new THREE.BoxBufferGeometry(0.5, 0.5, 0.5);
                material = this.materials[0].instance;
            }

            var dot = new THREE.Mesh(geometry, material);
            dot.name = 'dot ' + this.dots.length;
            dot.position.x = x * this.dotMapWeight.x + this.dotMapOffset.x;
            dot.position.y = height - (y * this.dotMapWeight.y + this.dotMapOffset.y);
            dot.position.z = z * this.dotMapWeight.z + this.dotMapOffset.z;

            dot.scale.x = z * this.dotMapScale.x + 0.00001;
            dot.scale.y = z * this.dotMapScale.y + 0.00001;
            dot.scale.z = z * this.dotMapScale.z + 0.00001;

            this.parentScene.instance.add(dot);

            this.dots.push(dot);
        }
    }

};

/**
 *
 * @returns {THREE.PlaneGeometry}
 */
R3.D3.Mesh.Plane.prototype.generateHeightMapFromBumpMap = function() {

    var data = this.getHeightData();

    this.vertices.map(
        function(vertex, index) {
            vertex.position.z = data[index];
        }
    );

    // var geometry = this.createInstanceGeometry();
	//
    // this.instance.geometry = geometry;

    //
    // var vertices = this.instance.geometry.attributes.position.array;
	//
    // for ( var i = 0; i < vertices.length; i += 3 ) {
		// vertices[i+2] = data[i];
    // }
	//
    // this.instance.geometry.attributes.position.needsUpdate = true;

    //this.updateVerticesFromGeometryInstance(this.instance.geometry);

    // this.updateInstance();
};

R3.D3.Mesh.Plane.prototype.createPhysicsObjects = function() {

    R3.Event.Emit(
        R3.Event.GET_PHYSICS_RUNTIME,
        null,
        function(physics){

            /**
             * Create the plane shape
             * @type {R3.D3.API.Shape}
             */
            var apiShapePlane = new R3.D3.API.Shape(
                null,
                'Shape Plane (' + this.name + ')'
            );

            apiShapePlane.parentMesh = this;

            var shapePlane = new R3.D3.Shape.Plane(
                physics,
                apiShapePlane
            );

            var apiRigidBody = new R3.D3.API.RigidBody(
                null,
                'Rigid Body (' + this.name + ')',
                0,
                null,
                new R3.API.Vector3(
                    this.position.x,
                    this.position.y,
                    this.position.z
                ),
                new R3.API.Quaternion(
                    this.quaternion.x,
                    this.quaternion.y,
                    this.quaternion.z,
                    this.quaternion.w,
                    new R3.API.Vector3(
                        this.quaternion.axis.x,
                        this.quaternion.axis.y,
                        this.quaternion.axis.z
                    ),
                    this.quaternion.angle
                )
            );

            apiRigidBody.shapes.push(shapePlane);

            apiRigidBody.parentMesh = this;

            /**
             * Construct the rigid body
             * @type {R3.D3.RigidBody}
             */
            var rigidBody = new R3.D3.RigidBody(
                physics,
                apiRigidBody
            );

            if (this.parentEntity instanceof R3.Entity) {
                this.parentEntity.addComponent(shapePlane);
                this.parentEntity.addComponent(rigidBody);
            }

        }.bind(this),
        function(error){
            console.log(error.message);
            throw new Error(error.message);
        }
    );



};