Function listRemoteDeviceFiles

packages/core/src/sync/simple-sync.ts:578–615

(
  backend: ISyncBackend,
)

}

async function listRemoteDeviceFiles(
  backend: ISyncBackend,
): Promise<{ deviceId: string; path: string }[]> {
  const deviceFilesById = new Map<string, { deviceId: string; path: string }>();
  const index = await loadDeviceSyncIndex(backend);
  if (index) {
    for (const [deviceId, entry] of Object.entries(index.devices)) {
      if (!entry?.path) continue;
      deviceFilesById.set(deviceId, { deviceId, path: entry.path });
    }
    console.log(
      `[SimpleSync] Remote device index listed ${deviceFilesById.size} device snapshot candidate(s)`,
    );
  }

  try {
    const files = await backend.listDir(SYNC_DIR);
    const deviceFiles = files
      .filter((f) => !f.isDirectory && f.name.startsWith("device-") && f.name.endsWith(".json"))
      .map((f) => ({
        deviceId: f.name.replace(/^device-/, "").replace(/\.json$/, ""),
        path: f.path || `${SYNC_DIR}/${f.name}`,
      }));
    for (const file of deviceFiles) {
      deviceFilesById.set(file.deviceId, file);
    }

    console.log(
      `[SimpleSync] Remote sync dir listed ${files.length} item(s), ${deviceFiles.length} device snapshot candidate(s)`,
    );
  } catch (error) {
    console.warn(
      `[SimpleSync] Failed to list remote device snapshots: ${error instanceof Error ? error.message : String(error)}`,
    );
  }

  return [...deviceFilesById.values()];
}

async function saveDeviceSnapshot(
  backend: ISyncBackend,