Toggle External API

src/system-settings/system-settings.service.ts

@@ -0,0 +1,79 @@
+import { Injectable, Logger } from "@nestjs/common";
+import {
+  SystemSettingsResponseDto,
+  UpdateSystemSettingsDto,
+} from "./dto/system-settings.dto";
+import { SystemSettingsDbService } from "./entities/db-service/system-settings.db.service";
+
+@Injectable()
+export class SystemSettingsService {
+  private readonly logger = new Logger(SystemSettingsService.name);
+  private cache: Record<string, unknown> | null = null;
+  private cacheAt = 0;
+  private readonly cacheTtlMs = 15_000;
+
+  constructor(private readonly db: SystemSettingsDbService) {}
+
+  private async loadGlobal(): Promise<Record<string, unknown>> {
+    const now = Date.now();
+    if (this.cache && now - this.cacheAt < this.cacheTtlMs) {
+      return this.cache;
+    }
+    let doc = await this.db.findGlobal();
+    if (!doc) {
+      doc = await this.db.upsertGlobal({
+        $set: { externalApis: { sandHubUseLiveApi: false } },
+      });
+      this.logger.log(
+        "Created default system_settings document (sandHubUseLiveApi=false)",
+      );
+    }
+    this.cache = doc;
+    this.cacheAt = now;
+    return doc;
+  }
+
+  private invalidateCache(): void {
+    this.cache = null;
+    this.cacheAt = 0;
+  }
+
+  /**
+   * Whether SandHub/Tejarat live HTTP should run (`system_settings` collection).
+   */
+  async isSandHubLiveEnabled(): Promise<boolean> {
+    const doc = await this.loadGlobal();
+    const externalApis = doc.externalApis as
+      | { sandHubUseLiveApi?: boolean }
+      | undefined;
+    return externalApis?.sandHubUseLiveApi === true;
+  }
+
+  async getSettingsView(): Promise<SystemSettingsResponseDto> {
+    const doc = await this.loadGlobal();
+    const externalApis = doc.externalApis as
+      | { sandHubUseLiveApi?: boolean }
+      | undefined;
+    const sandHubUseLiveApi = externalApis?.sandHubUseLiveApi === true;
+    return {
+      key: String(doc.key ?? "global"),
+      externalApis: { sandHubUseLiveApi },
+      sandHubMode: sandHubUseLiveApi ? "live" : "mock",
+    };
+  }
+
+  async updateSettings(
+    body: UpdateSystemSettingsDto,
+  ): Promise<SystemSettingsResponseDto> {
+    const $set: Record<string, unknown> = {};
+    if (body.externalApis?.sandHubUseLiveApi !== undefined) {
+      $set["externalApis.sandHubUseLiveApi"] = body.externalApis.sandHubUseLiveApi;
+    }
+    if (Object.keys($set).length > 0) {
+      await this.db.upsertGlobal({ $set });
+      this.invalidateCache();
+      this.logger.log(`System settings updated: ${JSON.stringify($set)}`);
+    }
+    return this.getSettingsView();
+  }
+}