Method loadConfigOrDefault

src/node/config.ts:702–1126

()

  }

  loadConfigOrDefault(): ProjectsConfig {
    try {
      if (fs.existsSync(this.configFile)) {
        const data = fs.readFileSync(this.configFile, "utf-8");
        const parsed = JSON.parse(data) as Partial<AppConfigOnDisk> & Record<string, unknown>;
        let configModified = false;
        let shouldInvalidateSessionUsageCaches = false;

        const normalizeNestedModelStrings = (value: unknown): boolean => {
          if (!value || typeof value !== "object" || Array.isArray(value)) {
            return false;
          }

          let modified = false;
          for (const entry of Object.values(value as Record<string, unknown>)) {
            if (!entry || typeof entry !== "object" || Array.isArray(entry)) {
              continue;
            }

            const modelString = (entry as { modelString?: unknown }).modelString;
            if (typeof modelString !== "string") {
              continue;
            }

            const normalized = normalizeSelectedModel(modelString.trim());
            if (normalized !== modelString) {
              (entry as { modelString?: string }).modelString = normalized;
              modified = true;
            }
          }

          return modified;
        };

        const normalizeLegacyGatewayModel = (value: string): string | undefined => {
          const trimmed = value.trim();
          if (!trimmed) {
            return undefined;
          }

          const legacyModelString = trimmed.includes(":") ? trimmed : trimmed.replace("/", ":");
          const canonicalModel = normalizeToCanonical(legacyModelString);
          return isValidModelFormat(canonicalModel) ? canonicalModel : undefined;
        };

        // Migrate legacy gateway settings to the new route-based system.
        // Legacy keys are intentionally preserved on disk for downgrade compatibility —
        // older versions still read muxGatewayEnabled / muxGatewayModels directly.
        if (
          (parsed.muxGatewayModels != null || parsed.muxGatewayEnabled != null) &&
          !Array.isArray(parsed.routePriority)
        ) {
          let nextPriority = this.seedRoutePriorityFromProviders() ?? ["direct"];
          if (parsed.muxGatewayEnabled === false) {
            nextPriority = nextPriority.filter((route) => route !== "mux-gateway");
            if (nextPriority.length === 0) {
              nextPriority = ["direct"];
            }