MailOnline/VPAIDHTML5Client

'use strict';

var METHODS = [
    'handshakeVersion',
    'initAd',
    'startAd',
    'stopAd',
    'skipAd', // VPAID 2.0 new method
    'resizeAd',
    'pauseAd',
    'resumeAd',
    'expandAd',
    'collapseAd',
    'subscribe',
    'unsubscribe'
];

var EVENTS = [
    'AdLoaded',
    'AdStarted',
    'AdStopped',
    'AdSkipped',
    'AdSkippableStateChange', // VPAID 2.0 new event
    'AdSizeChange', // VPAID 2.0 new event
    'AdLinearChange',
    'AdDurationChange', // VPAID 2.0 new event
    'AdExpandedChange',
    'AdRemainingTimeChange', // [Deprecated in 2.0] but will be still fired for backwards compatibility
    'AdVolumeChange',
    'AdImpression',
    'AdVideoStart',
    'AdVideoFirstQuartile',
    'AdVideoMidpoint',
    'AdVideoThirdQuartile',
    'AdVideoComplete',
    'AdClickThru',
    'AdInteraction', // VPAID 2.0 new event
    'AdUserAcceptInvitation',
    'AdUserMinimize',
    'AdUserClose',
    'AdPaused',
    'AdPlaying',
    'AdLog',
    'AdError'
];

var GETTERS = [
    'getAdLinear',
    'getAdWidth', // VPAID 2.0 new getter
    'getAdHeight', // VPAID 2.0 new getter
    'getAdExpanded',
    'getAdSkippableState', // VPAID 2.0 new getter
    'getAdRemainingTime',
    'getAdDuration', // VPAID 2.0 new getter
    'getAdVolume',
    'getAdCompanions', // VPAID 2.0 new getter
    'getAdIcons' // VPAID 2.0 new getter
];

var SETTERS = [
    'setAdVolume'
];


/**
 * This callback is displayed as global member. The callback use nodejs error-first callback style
 * @callback NodeStyleCallback
 * @param {string|null}
 * @param {undefined|object}
 */


/**
 * IVPAIDAdUnit
 *
 * @class
 *
 * @param {object} creative
 * @param {HTMLElement} el
 * @param {HTMLVideoElement} video
 */
function IVPAIDAdUnit(creative, el, video) {}


/**
 * handshakeVersion
 *
 * @param {string} VPAIDVersion
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.handshakeVersion = function (VPAIDVersion, callback) {};

/**
 * initAd
 *
 * @param {number} width
 * @param {number} height
 * @param {string} viewMode can be 'normal', 'thumbnail' or 'fullscreen'
 * @param {number} desiredBitrate indicates the desired bitrate in kbps
 * @param {object} [creativeData] used for additional initialization data
 * @param {object} [environmentVars] used for passing implementation-specific of js version
 * @param {NodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.initAd = function(width, height, viewMode, desiredBitrate, creativeData, environmentVars, callback) {};

/**
 * startAd
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.startAd = function(callback) {};

/**
 * stopAd
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.stopAd = function(callback) {};

/**
 * skipAd
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.skipAd = function(callback) {};

/**
 * resizeAd
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.resizeAd = function(width, height, viewMode, callback) {};

/**
 * pauseAd
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.pauseAd = function(callback) {};

/**
 * resumeAd
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.resumeAd = function(callback) {};

/**
 * expandAd
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.expandAd = function(callback) {};

/**
 * collapseAd
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.collapseAd = function(callback) {};

/**
 * subscribe
 *
 * @param {string} event
 * @param {nodeStyleCallback} handler
 * @param {object} context
 */
IVPAIDAdUnit.prototype.subscribe = function(event, handler, context) {};

/**
 * startAd
 *
 * @param {string} event
 * @param {function} handler
 */
IVPAIDAdUnit.prototype.unsubscribe = function(event, handler) {};



/**
 * getAdLinear
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.getAdLinear = function(callback) {};

/**
 * getAdWidth
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.getAdWidth = function(callback) {};

/**
 * getAdHeight
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.getAdHeight = function(callback) {};

/**
 * getAdExpanded
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.getAdExpanded = function(callback) {};

/**
 * getAdSkippableState
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.getAdSkippableState = function(callback) {};

/**
 * getAdRemainingTime
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.getAdRemainingTime = function(callback) {};

/**
 * getAdDuration
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.getAdDuration = function(callback) {};

/**
 * getAdVolume
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.getAdVolume = function(callback) {};

/**
 * getAdCompanions
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.getAdCompanions = function(callback) {};

/**
 * getAdIcons
 *
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.getAdIcons = function(callback) {};

/**
 * setAdVolume
 *
 * @param {number} volume
 * @param {nodeStyleCallback} callback
 */
IVPAIDAdUnit.prototype.setAdVolume = function(volume, callback) {};

addStaticToInterface(IVPAIDAdUnit, 'METHODS', METHODS);
addStaticToInterface(IVPAIDAdUnit, 'GETTERS', GETTERS);
addStaticToInterface(IVPAIDAdUnit, 'SETTERS', SETTERS);
addStaticToInterface(IVPAIDAdUnit, 'EVENTS',  EVENTS);


var VPAID1_METHODS = METHODS.filter(function(method) {
    return ['skipAd'].indexOf(method) === -1;
});

addStaticToInterface(IVPAIDAdUnit, 'checkVPAIDInterface', function checkVPAIDInterface (creative) {
    var result = VPAID1_METHODS.every(function(key) {
        return typeof creative[key] === 'function';
    });
    return result;
});

module.exports = IVPAIDAdUnit;

function addStaticToInterface(Interface, name, value) {
    Object.defineProperty(Interface, name, {
        writable: false,
        configurable: false,
        value: value
    });
}