add service to find real estate - search request matches

app/services/searchMatchService.js

@@ -0,0 +1,45 @@
+"use strict";
+
+const {
+  findSearchRequestsForRealEstate
+} = require("../helpers/db/searchRequest");
+const { addMatches } = require("../helpers/db/searchRequestMatch");
+
+const matchRealEstates = async realEstates => {
+  if (Array.isArray(realEstates)) {
+    const asyncMatchActions = [];
+    const matches = {};
+    const matchingRecords = [];
+    for (const realEstate of realEstates) {
+      const searchRequestsPromise = findSearchRequestsForRealEstate(realEstate);
+      asyncMatchActions.push(searchRequestsPromise);
+
+      searchRequestsPromise.then(searchRequests => {
+        for (const searchRequest of searchRequests) {
+          const { id } = searchRequest;
+          if (!matches[id]) {
+            matches[id] = {
+              searchRequest,
+              realEstates: []
+            };
+          }
+          matches[id].realEstates.push(realEstate);
+          matchingRecords.push({
+            searchRequestId: searchRequest.id,
+            realEstateId: realEstate.id,
+            notified: false
+          });
+        }
+      });
+    }
+
+    await Promise.all(asyncMatchActions);
+
+    await addMatches(matchingRecords);
+    return matches;
+  }
+};
+
+module.exports = {
+  matchRealEstates
+};