feat: search in progress

api/lib/utils/reduceHits.js

@@ -0,0 +1,26 @@
+const mergeSort = require('./mergeSort');
+
+function reduceHits(hits) {
+  const counts = {};
+  
+  for (const hit of hits) {
+    if (!counts[hit.conversationId]) {
+      counts[hit.conversationId] = 1;
+    } else {
+      counts[hit.conversationId]++;
+    }
+  }
+  
+  const result = [];
+  
+  for (const [conversationId, count] of Object.entries(counts)) {
+    result.push({
+      conversationId,
+      count
+    });
+  }
+  
+  return mergeSort(result, (a, b) => b.count - a.count);
+}
+
+module.exports = reduceHits;