/**
 * R3.Quaternion
 * @param apiComponent
 * @constructor
 */
R3.Quaternion = function(
    apiComponent
) {

    __RUNTIME_COMPONENT__;

    Object.defineProperty(
        this,
        'angle',
        R3.Utils.LimitToPI('angle', this.angle)
    );

    __UPGRADE_TO_RUNTIME__;
};

R3.Quaternion.prototype = Object.create(R3.Component.prototype);
R3.Quaternion.prototype.constructor = R3.Quaternion;

/**
 * Creates an instance quaternion
 * @returns {*}
 */
R3.Quaternion.prototype.createInstance = function() {

    var runtime = R3.Component.GetComponentRuntime(this.parent);

    switch (runtime) {
        case R3.Runtime.GRAPHICS :
            this.instance = new this.graphics.Quaternion(
                this.x,
                this.y,
                this.z,
                this.w
            );
            break;
        case R3.Runtime.PHYSICS :
            this.instance = new this.physics.Quaternion(
                this.x,
                this.y,
                this.z,
                this.w
            );
            break;
        default:
            throw new Error('unhandled component runtime: ' + runtime);
    }

    __CREATE_INSTANCE__;

};

/**
 * Updates the instance vector, calls updateInstance on the parent object
 */
R3.Quaternion.prototype.updateInstance = function(property) {

    if (property === 'x') {
        this.instance.x = this.x;
        return;
    }

    if (property === 'y') {
        this.instance.y = this.y;
        return;
    }

    if (property === 'z') {
        this.instance.z = this.z;
        return;
    }

    if (property === 'w') {
        this.instance.w = this.w;
        return;
    }

    if (property === 'axis') {
        console.warn('todo: axis update');
        return;
    }

    if (property === 'angle') {
        console.warn('todo: angle update');
        return;
    }

    __UPDATE_INSTANCE__;

};


/**
 * Checks if quaternion is equal to another quaternion
 * @param quaternion
 * @returns {boolean}
 */
R3.Quaternion.prototype.equals = function(quaternion) {

    return (
        this.x === quaternion.x &&
        this.y === quaternion.y &&
        this.z === quaternion.z &&
        this.w === quaternion.w &&
        this.axis.equals(quaternion.axis) &&
        this.angle === quaternion.angle
    );

};

R3.Quaternion.prototype.setFrom = function(quaternion) {

    this.x = quaternion.x;
    this.y = quaternion.y;
    this.z = quaternion.z;
    this.w = quaternion.w;
    this.axis.setFrom(quaternion.axis);
    this.angle = quaternion.angle;

};

R3.Quaternion.prototype.copy = function() {
    R3.API.Quaternion.prototype.copy.call(this);
};