feat: MeilisearchにIndexするノートの範囲を設定できるように (#101)

.config/example.yml

@@ -104,6 +104,7 @@ redis:
 #  apiKey: ''
 #  ssl: true
 #  index: ''
+#  scope: local
 
 #   ┌───────────────┐
 #───┘ ID generation └───────────────────────────────────────────

packages/backend/src/config.ts

@@ -63,6 +63,7 @@ export type Source = {
 		apiKey: string;
 		ssl?: boolean;
 		index: string;
+		scope?: 'local' | 'global' | string[];
 	};
 
 	proxy?: string;

packages/backend/src/core/SearchService.ts

@@ -52,6 +52,7 @@ function compileQuery(q: Q): string {
 
 @Injectable()
 export class SearchService {
+	private readonly meilisearchIndexScope: 'local' | 'global' | string[] = 'local';
 	private meilisearchNoteIndex: Index | null = null;
 
 	constructor(
@@ -92,6 +93,10 @@ export class SearchService {
 				},
 			});
 		}
+
+		if (config.meilisearch?.scope) {
+			this.meilisearchIndexScope = config.meilisearch.scope;
+		}
 	}
 
 	@bindThis
@@ -100,7 +105,22 @@ export class SearchService {
 		if (!['home', 'public'].includes(note.visibility)) return;
 
 		if (this.meilisearch) {
-			this.meilisearchNoteIndex!.addDocuments([{
+			switch (this.meilisearchIndexScope) {
+				case 'global':
+					break;
+
+				case 'local':
+					if (note.userHost == null) break;
+					return;
+
+				default: {
+					if (note.userHost == null) break;
+					if (this.meilisearchIndexScope.includes(note.userHost)) break;
+					return;
+				}
+			}
+
+			await this.meilisearchNoteIndex?.addDocuments([{
 				id: note.id,
 				createdAt: note.createdAt.getTime(),
 				userId: note.userId,