/**
 * Stats component for displaying some render statistics (framerate, memory consumption, etc)
 * @param statisticsRuntime
 * @param apiStats
 * @constructor
 */
GameLib.Stats = function(
    statisticsRuntime,
    apiStats
) {
    this.stats = statisticsRuntime;
    this.stats.isNotStatsThrow();

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

    GameLib.API.Stats.call(
        this,
        apiStats.id,
        apiStats.name,
        apiStats.domElement,
        apiStats.parentEntity
    );

    GameLib.Component.call(
        this,
        {
            'domElement': GameLib.DomElement
        }
    );
};

GameLib.Stats.prototype = Object.create(GameLib.Component.prototype);
GameLib.Stats.prototype.constructor = GameLib.Stats;

/**
 * Creates a helper instance
 */
GameLib.Stats.prototype.createInstance = function() {

    this.instance = this.stats.instance();

    this.resize();

    this.domElement.instance.parentElement.appendChild(this.instance.dom);

    GameLib.Component.prototype.createInstance.call(this);
};

/**
 * Updates the instance with the current state
 */
GameLib.Stats.prototype.updateInstance = function() {
    this.instance = new this.stats();
};


/**
 * Converts a GameLib.Stats to a new GameLib.API.Stats
 * @returns {GameLib.API.Stats}
 */
GameLib.Stats.prototype.toApiObject = function() {

    return new GameLib.API.Stats(
        this.id,
        this.name,
        GameLib.Utils.IdOrNull(this.domElement),
        GameLib.Utils.IdOrNull(this.parentEntity)
    );

};

/**
 * Converts from an Object Stats to a GameLib.Stats
 * @param statisticsRuntime GameLib.StatisticsRuntime
 * @param objectStats Object
 * @returns {GameLib.Stats}
 * @constructor
 */
GameLib.Stats.FromObject = function(statisticsRuntime, objectStats) {

    var apiStats = GameLib.API.Stats.FromObject(objectStats);

    return new GameLib.Stats(
        statisticsRuntime,
        apiStats
    );

};

GameLib.Stats.prototype.resize = function() {
    console.log('override stats resize per implementation');
};


GameLib.Stats.prototype.start = function() {
	this.instance.begin();
};

GameLib.Stats.prototype.end = function() {
	this.instance.end();
};