consumable-htb.js

'use strict';

////////////////////////////////////////////////////////////////////////////////
// Dependencies ////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////

var Browser = require('browser.js');
var Classify = require('classify.js');
var Constants = require('constants.js');
var Partner = require('partner.js');
var Size = require('size.js');
var SpaceCamp = require('space-camp.js');
var System = require('system.js');
var Network = require('network.js');

var RenderService;

//? if (DEBUG) {
var ConfigValidators = require('config-validators.js');
var PartnerSpecificValidator = require('consumable-htb-validator.js');
var Scribe = require('scribe.js');
var Whoopsie = require('whoopsie.js');
//? }

////////////////////////////////////////////////////////////////////////////////
// Main ////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////

/**
 * Partner module template
 *
 * @class
 */
function ConsumableHtb(configs) {
    /* =====================================
     * Data
     * ---------------------------------- */

    /* Private
     * ---------------------------------- */

    /**
     * Reference to the partner base class.
     *
     * @private {object}
     */
    var __baseClass;

    /**
     * Profile for this partner.
     *
     * @private {object}
     */
    var __profile;

    /* =====================================
     * Functions
     * ---------------------------------- */

    /* Utilities
     * ---------------------------------- */

    var adTypesBySize = {
        '120x90': 1,
        '468x60': 3,
        '728x90': 4,
        '300x250': 5,
        '160x600': 6,
        '120x600': 7,
        '300x100': 8,
        '180x150': 9,
        '336x280': 10,
        '240x400': 11,
        '234x60': 12,
        '88x31': 13,
        '120x60': 14,
        '120x240': 15,
        '125x125': 16,
        '220x250': 17,
        '250x250': 18,
        '250x90': 19,
        '0x0': 20,
        '200x90': 21,
        '300x50': 22,
        '320x50': 23,
        '320x480': 24,
        '185x185': 25,
        '620x45': 26,
        '300x125': 27,
        '800x250': 28,
        '300x600': 43,
        '970x90': 77,
        '970x250': 123,
        '970x66': 286,
        '320x250': 331,
        '700x500': 374,
        '486x60': 429,
        '300x1050': 934,
        '320x100': 1578,
        '728x250': 2730,
        '970x280': 3230,
        '320x267': 3301
    };

    function sizeToAdType(size) {
        return adTypesBySize[Size.arrayToString(size)];
    }

    /**
     * Generates the request URL and query data to the endpoint for the xSlots
     * in the given returnParcels.
     *
     * @param  {object[]} returnParcels
     *
     * @return {object}
     */
    function __generateRequestObj(returnParcels) {
        /* =============================================================================
         * STEP 2  | Generate Request URL
         * -----------------------------------------------------------------------------
         *
         * Generate the URL to request demand from the partner endpoint using the provided
         * returnParcels. The returnParcels is an array of objects each object containing
         * an .xSlotRef which is a reference to the xSlot object from the partner configuration.
         * Use this to retrieve the placements/xSlots you need to request for.
         *
         * If your partner is MRA, returnParcels will be an array of length one. If your
         * partner is SRA, it will contain any number of entities. In any event, the full
         * contents of the array should be able to fit into a single request and the
         * return value of this function should similarly represent a single request to the
         * endpoint.
         *
         * Return an object containing:
         * queryUrl: the url for the request
         * data: the query object containing a map of the query string paramaters
         *
         * callbackId:
         *
         * arbitrary id to match the request with the response in the callback function. If
         * your endpoint supports passing in an arbitrary ID and returning it as part of the response
         * please use the callbackType: Partner.CallbackTypes.ID and fill out the adResponseCallback.
         * Also please provide this adResponseCallback to your bid request here so that the JSONP
         * response calls it once it has completed.
         *
         * If your endpoint does not support passing in an ID, simply use
         * Partner.CallbackTypes.CALLBACK_NAME and the wrapper will take care of handling request
         * matching by generating unique callbacks for each request using the callbackId.
         *
         * If your endpoint is ajax only, please set the appropriate values in your profile for this,
         * i.e. Partner.CallbackTypes.NONE and Partner.Requesttypes.AJAX. You also do not need to provide
         * a callbackId in this case because there is no callback.
         *
         * The return object should look something like this:
         * {
         *     url: 'http://bidserver.com/api/bids' // base request url for a GET/POST request
         *     data: { // query string object that will be attached to the base url
         *        slots: [
         *             {
         *                 placementId: 54321,
         *                 sizes: [[300, 250]]
         *             },{
         *                 placementId: 12345,
         *                 sizes: [[300, 600]]
         *             },{
         *                 placementId: 654321,
         *                 sizes: [[728, 90]]
         *             }
         *         ],
         *         site: 'http://google.com'
         *     },
         *     callbackId: '_23sd2ij4i1' //unique id used for pairing requests and responses
         * }
         */

        var callbackId = System.generateUniqueId();

        /* ------------------------ Get consent information -------------------------
         * If you want to implement GDPR consent in your adapter, use the function
         * ComplianceService.gdpr.getConsent() which will return an object.
         *
         * Here is what the values in that object mean:
         *      - applies: the boolean value indicating if the request is subject to
         *      GDPR regulations
         *      - consentString: the consent string developed by GDPR Consent Working
         *      Group under the auspices of IAB Europe
         *
         * The return object should look something like this:
         * {
         *      applies: true,
         *      consentString: "BOQ7WlgOQ7WlgABABwAAABJOACgACAAQABA"
         * }
         *
         * You can also determine whether or not the publisher has enabled privacy
         * features in their wrapper by querying ComplianceService.isPrivacyEnabled().
         *
         * This function will return a boolean, which indicates whether the wrapper's
         * privacy features are on (true) or off (false). If they are off, the values
         * returned from gdpr.getConsent() are safe defaults and no attempt has been
         * made by the wrapper to contact a Consent Management Platform.
         */

        return {
            url: Browser.getProtocol() + '//e.serverbid.com/api/v2',
            data: {
                placements: returnParcels.map(function (parcel) {
                    return {
                        networkId: parcel.xSlotRef.networkId,
                        siteId: parcel.xSlotRef.siteId,
                        zoneIds: parcel.xSlotRef.zoneIds,
                        divName: parcel.xSlotName,
                        adTypes: parcel.xSlotRef.sizes
                            .map(sizeToAdType)
                            .filter(function (adType) {
                                return typeof adType === 'number';
                            })
                    };
                }),
                time: System.now(),
                user: {},
                url: Browser.getPageUrl(),
                referrer: Browser.getReferrer(),
                enableBotFiltering: true,
                includePricingData: true,
                parallel: true
            },
            callbackId: callbackId,
            networkParamOverrides: {
                method: 'POST',
                contentType: 'application/json'
            }
        };
    }

    /* Helpers
     * ---------------------------------- */

    /* =============================================================================
     * STEP 5  | Rendering Pixel
     * -----------------------------------------------------------------------------
     *
    */

    /**
     * This function will render the pixel given.
     * @param  {string} pixelUrl Tracking pixel img url.
     */
    function __renderPixel(pixelUrl) {
        if (pixelUrl) {
            Network.img({
                url: pixelUrl,
                method: 'GET'
            });
        }
    }

    /**
     * Parses and extracts demand from adResponse according to the adapter and then attaches it
     * to the corresponding bid's returnParcel in the correct format using targeting keys.
     *
     * @param {string} sessionId The sessionId, used for stats and other events.
     *
     * @param {any} adResponse This is the bid response as returned from the bid request, that was either
     * passed to a JSONP callback or simply sent back via AJAX.
     *
     * @param {object[]} returnParcels The array of original parcels, SAME array that was passed to
     * generateRequestObj to signal which slots need demand. In this funciton, the demand needs to be
     * attached to each one of the objects for which the demand was originally requested for.
     */
    function __parseResponse(sessionId, adResponse, returnParcels) {
        /* =============================================================================
         * STEP 4  | Parse & store demand response
         * -----------------------------------------------------------------------------
         *
         * Fill the below variables with information about the bid from the partner, using
         * the adResponse variable that contains your module adResponse.
         */

        /* This an array of all the bids in your response that will be iterated over below. Each of
         * these will be mapped back to a returnParcel object using some criteria explained below.
         * The following variables will also be parsed and attached to that returnParcel object as
         * returned demand.
         *
         * Use the adResponse variable to extract your bid information and insert it into the
         * bids array. Each element in the bids array should represent a single bid and should
         * match up to a single element from the returnParcel array.
         *
         */

        for (var j = 0; j < returnParcels.length; j++) {
            var curReturnParcel = returnParcels[j];

            var headerStatsInfo = {};
            var htSlotId = curReturnParcel.htSlot.getId();
            headerStatsInfo[htSlotId] = {};
            headerStatsInfo[htSlotId][curReturnParcel.requestId] = [curReturnParcel.xSlotName];

            var decision = adResponse.decisions && adResponse.decisions[curReturnParcel.xSlotName];

            if (!decision) {
                /* No matching bid found so its a pass */
                if (__profile.enabledAnalytics.requestTime) {
                    __baseClass._emitStatsEvent(sessionId, 'hs_slot_pass', headerStatsInfo);
                }
                curReturnParcel.pass = true;

                continue;
            }

            /* The bid price for the given slot */
            var bidPrice = (decision.pricing && Number(decision.pricing.clearPrice)) || 0;

            /* The size of the given slot */
            var bidSize = [decision.width, decision.height];

            /* The creative/adm for the given slot that will be rendered if is the winner.
             * Please make sure the URL is decoded and ready to be document.written.
             */
            var wrappedCreative = (decision.contents && decision.contents[0] && decision.contents[0].body) || '';
            var cb = System.now();
            var bidCreative = '<script src="https://sync.serverbid.com/ss/' + curReturnParcel.xSlotRef.siteId + '.js">'
                + '</script>'
                + '<div id="' + curReturnParcel.xSlotRef.unitName + '-'
                + curReturnParcel.xSlotRef.unitId + '">'
                + wrappedCreative
                + '</div>'
                + '<div class="' + curReturnParcel.xSlotRef.unitName + '"></div>'
                + '<script src="https://yummy.consumable.com/' + curReturnParcel.xSlotRef.unitId
                + '/' + curReturnParcel.xSlotRef.unitName + '/widget/unit.js?cb=' + cb + '" async></script>';

            /* The dealId if applicable for this slot. */
            var bidDealId = '';

            /* Explicitly pass */
            var bidIsPass = bidPrice <= 0;

            /* OPTIONAL: tracking pixel url to be fired AFTER rendering a winning creative.
            * If firing a tracking pixel is not required or the pixel url is part of the adm,
            * leave empty;
            */
            var pixelUrl = decision.impressionUrl || '';

            /* --------------------------------------------------------------------------------------- */

            if (bidIsPass) {
                //? if (DEBUG) {
                Scribe.info(__profile.partnerId + ' returned pass for { id: ' + adResponse.id + ' }.');
                //? }
                if (__profile.enabledAnalytics.requestTime) {
                    __baseClass._emitStatsEvent(sessionId, 'hs_slot_pass', headerStatsInfo);
                }
                curReturnParcel.pass = true;

                continue;
            }

            if (__profile.enabledAnalytics.requestTime) {
                __baseClass._emitStatsEvent(sessionId, 'hs_slot_bid', headerStatsInfo);
            }

            curReturnParcel.size = bidSize;
            curReturnParcel.targetingType = 'slot';
            curReturnParcel.targeting = {};

            var targetingCpm = '';

            //? if (FEATURES.GPT_LINE_ITEMS) {
            targetingCpm = __baseClass._bidTransformers.targeting.apply(bidPrice);
            var sizeKey = Size.arrayToString(curReturnParcel.size);

            if (bidDealId) {
                curReturnParcel.targeting[__baseClass._configs.targetingKeys.pmid] = [sizeKey + '_' + bidDealId];
                curReturnParcel.targeting[__baseClass._configs.targetingKeys.pm] = [sizeKey + '_' + targetingCpm];
            } else {
                curReturnParcel.targeting[__baseClass._configs.targetingKeys.om] = [sizeKey + '_' + targetingCpm];
            }
            curReturnParcel.targeting[__baseClass._configs.targetingKeys.id] = [curReturnParcel.requestId];
            //? }

            //? if (FEATURES.RETURN_CREATIVE) {
            curReturnParcel.adm = bidCreative;
            if (pixelUrl) {
                curReturnParcel.winNotice = __renderPixel.bind(null, pixelUrl);
            }
            //? }

            //? if (FEATURES.RETURN_PRICE) {
            curReturnParcel.price = Number(__baseClass._bidTransformers.price.apply(bidPrice));
            //? }

            var expiry = 0;
            if (__profile.features.demandExpiry.enabled) {
                expiry = __profile.features.demandExpiry.value + System.now();
            }

            var pubKitAdId = RenderService.registerAd({
                sessionId: sessionId,
                partnerId: __profile.partnerId,
                adm: bidCreative,
                requestId: curReturnParcel.requestId,
                size: curReturnParcel.size,
                price: targetingCpm,
                dealId: bidDealId || null,
                timeOfExpiry: expiry,
                auxFn: __renderPixel,
                auxArgs: [pixelUrl]
            });

            //? if (FEATURES.INTERNAL_RENDER) {
            curReturnParcel.targeting.pubKitAdId = pubKitAdId;
            //? }
        }
    }

    /* =====================================
     * Constructors
     * ---------------------------------- */

    (function __constructor() {
        RenderService = SpaceCamp.services.RenderService;

        /* =============================================================================
         * STEP 1  | Partner Configuration
         * -----------------------------------------------------------------------------
         *
         * Please fill out the below partner profile according to the steps in the README doc.
         */

        /* ---------- Please fill out this partner profile according to your module ------------ */
        __profile = {
            partnerId: 'ConsumableHtb',
            namespace: 'ConsumableHtb',
            statsId: 'CNSM',
            version: '2.0.0',
            targetingType: 'slot',
            enabledAnalytics: {
                requestTime: true
            },
            features: {
                demandExpiry: {
                    enabled: false,
                    value: 0
                },
                rateLimiting: {
                    enabled: false,
                    value: 0
                }
            },

            /* Targeting keys for demand, should follow format ix_{statsId}_id */
            targetingKeys: {
                id: 'ix_cnsm_id',
                om: 'ix_cnsm_cpm',
                pm: 'ix_cnsm_cpm',
                pmid: 'ix_cnsm_dealid'
            },

            bidUnitInCents: 100,
            lineItemType: Constants.LineItemTypes.ID_AND_SIZE,
            callbackType: Partner.CallbackTypes.NONE,
            architecture: Partner.Architectures.SRA,
            requestType: Partner.RequestTypes.AJAX
        };

        /* --------------------------------------------------------------------------------------- */

        //? if (DEBUG) {
        var results = ConfigValidators.partnerBaseConfig(configs) || PartnerSpecificValidator(configs);

        if (results) {
            throw Whoopsie('INVALID_CONFIG', results);
        }
        //? }

        __baseClass = Partner(__profile, configs, null, {
            parseResponse: __parseResponse,
            generateRequestObj: __generateRequestObj
        });
    })();

    /* =====================================
     * Public Interface
     * ---------------------------------- */

    var derivedClass = {
        /* Class Information
         * ---------------------------------- */

        //? if (DEBUG) {
        __type__: 'ConsumableHtb',
        //? }

        //? if (TEST) {
        __baseClass: __baseClass,
        //? }

        /* Data
         * ---------------------------------- */

        //? if (TEST) {
        profile: __profile,
        //? }

        /* Functions
         * ---------------------------------- */

        //? if (TEST) {
        parseResponse: __parseResponse,
        generateRequestObj: __generateRequestObj
        //? }
    };

    return Classify.derive(__baseClass, derivedClass);
}

////////////////////////////////////////////////////////////////////////////////
// Exports /////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////

module.exports = ConsumableHtb;