add bidderDefaultFunction (#7628)

Author: eknis

modules/imRtdProvider.js

@@ -37,6 +37,34 @@ function setImDataInCookie(value) {
   );
 }
 
+/**
+* @param {string} bidderName
+*/
+export function getBidderFunction(bidderName) {
+  const biddersFunction = {
+    ix: function (bid, data) {
+      if (data.im_segments && data.im_segments.length) {
+        config.setConfig({
+          ix: {firstPartyData: {im_segments: data.im_segments}},
+        });
+      }
+      return bid
+    },
+    pubmatic: function (bid, data) {
+      if (data.im_segments && data.im_segments.length) {
+        const dctr = deepAccess(bid, 'params.dctr');
+        deepSetValue(
+          bid,
+          'params.dctr',
+          `${dctr ? dctr + '|' : ''}im_segments=${data.im_segments.join(',')}`
+        );
+      }
+      return bid
+    }
+  }
+  return biddersFunction[bidderName] || null;
+}
+
 export function getCustomBidderFunction(config, bidder) {
   const overwriteFn = deepAccess(config, `params.overwrites.${bidder}`)
 
@@ -73,9 +101,12 @@ export function setRealTimeData(bidConfig, moduleConfig, data) {
 
   adUnits.forEach(adUnit => {
     adUnit.bids.forEach(bid => {
+      const bidderFunction = getBidderFunction(bid.bidder);
       const overwriteFunction = getCustomBidderFunction(moduleConfig, bid.bidder);
       if (overwriteFunction) {
         overwriteFunction(bid, data, utils, config);
+      } else if (bidderFunction) {
+        bidderFunction(bid, data);
       }
     })
   });

test/spec/modules/imRtdProvider_spec.js

@@ -1,6 +1,7 @@
 import {
   imRtdSubmodule,
   storage,
+  getBidderFunction,
   getCustomBidderFunction,
   setRealTimeData,
   getRealTimeData,
@@ -47,6 +48,30 @@ describe('imRtdProvider', function () {
     })
   })
 
+  describe('getBidderFunction', function () {
+    const assumedBidder = [
+      'ix',
+      'pubmatic'
+    ];
+    assumedBidder.forEach(bidderName => {
+      it(`should return bidderFunction with assumed bidder: ${bidderName}`, function () {
+        expect(getBidderFunction(bidderName)).to.exist.and.to.be.a('function');
+      });
+
+      it(`should return bid with correct key data: ${bidderName}`, function () {
+        const bid = {bidder: bidderName};
+        expect(getBidderFunction(bidderName)(bid, {'im_segments': ['12345', '67890']})).to.equal(bid);
+      });
+      it(`should return bid without data: ${bidderName}`, function () {
+        const bid = {bidder: bidderName};
+        expect(getBidderFunction(bidderName)(bid, '')).to.equal(bid);
+      });
+    });
+    it(`should return null with unexpected bidder`, function () {
+      expect(getBidderFunction('test')).to.equal(null);
+    });
+  })
+
   describe('getCustomBidderFunction', function () {
     it('should return config function', function () {
       const config = {