/**
 * Image
 * @constructor
 * @param apiImage
 */
GameLib.Image = function(
    apiImage
) {

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

    if (apiImage instanceof GameLib.Image) {
        return apiImage;
    }

    GameLib.API.Image.call(
        this,
        apiImage.id,
        apiImage.name,
        apiImage.fileName,
        apiImage.extension,
        apiImage.path,
        apiImage.contentType,
        apiImage.size,
        apiImage.parentEntity
    );

	GameLib.Component.call(this);
};

GameLib.Image.prototype = Object.create(GameLib.API.Image.prototype);
GameLib.Image.prototype.constructor = GameLib.Image;

/**
 * Creates an image instance
 * @returns {*}
 */
GameLib.Image.prototype.createInstance = function() {

    GameLib.Event.Emit(
        GameLib.Event.LOAD_IMAGE,
        {
            image : this
        },
        function(imageInstance) {
            this.instance = imageInstance;
            GameLib.Component.prototype.createInstance.call(this);
        }.bind(this),
        function(error) {
            console.error(error);
            this.instance = null;
            GameLib.Component.prototype.createInstance.call(this);
        }.bind(this)
    );

};

/**
 * Updates the instance with the current state
 */
GameLib.Image.prototype.updateInstance = function(property) {

    if (GameLib.Utils.UndefinedOrNull(property)) {
        console.warn('unknown property update for Image: ' + property);
    }

    if (
        property === 'fileName' ||
        property === 'extension' ||
        property === 'path'
    ) {
        this.createInstance();
    }
};

/**
 *
 * @returns {GameLib.API.Image}
 */
GameLib.Image.prototype.toApiObject = function() {

    var apiImage = new GameLib.API.Image(
        this.id,
        this.name,
        this.fileName,
        this.extension,
        this.path,
        this.contentType,
        this.size,
        GameLib.Utils.IdOrNull(this.parentEntity)
    );

    return apiImage;
};

/**
 * @param objectImage
 * @returns {GameLib.Image}
 * @constructor
 */
GameLib.Image.FromObject = function(objectImage) {
    return new GameLib.Image(
        GameLib.API.Image.FromObject(objectImage)
    );
};