Merge pull request #24468 from overleaf/mj-client-side-references

[web] Perform ARS on client-side

GitOrigin-RevId: 19703c82758cae450fe52463ad9612d3a2383ba0

services/web/frontend/js/features/ide-react/references/references.worker.ts

@@ -0,0 +1,47 @@
+import BasicReferenceIndex from './basic-reference-index'
+import { ReferenceIndex } from './reference-index'
+import { AdvancedReferenceSearchResult, Changes } from './types'
+import importOverleafModules from '../../../../macros/import-overleaf-module.macro'
+
+interface IndexConstructor {
+  new (): ReferenceIndex
+}
+
+const indices = importOverleafModules('referenceIndices') as {
+  import: { default: IndexConstructor }
+  path: string
+}[]
+
+export type ReferenceWorkerRequest =
+  | { type: 'update'; changes: Changes }
+  | { type: 'search'; query: string }
+
+export type ReferenceWorkerResponse =
+  | { type: 'updateKeys'; keys: Set<string> }
+  | { type: 'searchResult'; result: AdvancedReferenceSearchResult }
+
+function createIndex(): ReferenceIndex {
+  const Klass = indices[0]?.import.default ?? BasicReferenceIndex
+  return new Klass()
+}
+
+const indexer: ReferenceIndex = createIndex()
+
+self.addEventListener('message', async (event: MessageEvent) => {
+  const message = event.data as ReferenceWorkerRequest
+  switch (message.type) {
+    case 'update':
+      indexer.updateIndex(message.changes)
+      self.postMessage({ type: 'updateKeys', keys: indexer.getKeys() })
+      break
+
+    case 'search': {
+      const result = await indexer.search(message.query)
+      self.postMessage({ type: 'searchResult', result })
+      break
+    }
+
+    default:
+      console.error('Unknown message type:', message)
+  }
+})