export async function readDatabases()

in src/Common/dataAccess/readDatabases.ts [14:89]
67 lines of code
14 McCabe index (conditional complexity)

export async function readDatabases(): Promise<DataModels.Database[]> {
  let databases: DataModels.Database[];
  const clearMessage = logConsoleProgress(`Querying databases`);

  if (
    isFabricMirroredKey() &&
    (userContext.fabricContext?.artifactInfo as FabricArtifactInfo[CosmosDbArtifactType.MIRRORED_KEY]).resourceTokenInfo
      .resourceTokens
  ) {
    const tokensData = (userContext.fabricContext.artifactInfo as FabricArtifactInfo[CosmosDbArtifactType.MIRRORED_KEY])
      .resourceTokenInfo;

    const databaseIdsSet = new Set<string>(); // databaseId

    for (const collectionResourceId in tokensData.resourceTokens) {
      // Dictionary key looks like this: dbs/SampleDB/colls/Container
      const resourceIdObj = collectionResourceId.split("/");

      if (resourceIdObj.length !== 4) {
        handleError(`Resource key not recognized: ${resourceIdObj}`, "ReadDatabases", `Error while querying databases`);
        clearMessage();
        return [];
      }

      const databaseId = resourceIdObj[1];

      databaseIdsSet.add(databaseId);
    }

    const databases: DataModels.Database[] = Array.from(databaseIdsSet.values())
      .sort((a, b) => a.localeCompare(b))
      .map((databaseId) => ({
        _rid: "",
        _self: "",
        _etag: "",
        _ts: 0,
        id: databaseId,
        collections: [],
      }));
    clearMessage();
    return databases;
  } else if (isFabricNative() && userContext.fabricContext?.databaseName) {
    const databaseId = userContext.fabricContext.databaseName;
    databases = [
      {
        _rid: "",
        _self: "",
        _etag: "",
        _ts: 0,
        id: databaseId,
        collections: [],
      },
    ];
    clearMessage();
    return databases;
  }

  try {
    if (
      userContext.authType === AuthType.AAD &&
      !userContext.features.enableSDKoperations &&
      userContext.apiType !== "Tables" &&
      !isFabric()
    ) {
      databases = await readDatabasesWithARM();
    } else {
      const sdkResponse = await client().databases.readAll().fetchAll();
      databases = sdkResponse.resources as DataModels.Database[];
    }
  } catch (error) {
    handleError(error, "ReadDatabases", `Error while querying databases`);
    throw error;
  }
  clearMessage();
  return databases;
}