Function importAllMetaEdits

src/back/MetaEdit.ts:90–349

(fullMetaEditsFolderPath: string, openDialog: ShowMessageBoxFunc, state: BackState)

 * @param state Back State
 */
export async function importAllMetaEdits(fullMetaEditsFolderPath: string, openDialog: ShowMessageBoxFunc, state: BackState): Promise<ImportMetaEditResult> {
  const errors: Error[] = [];

  // Load all meta edit files
  const files: LoadedMetaEditFile[] = [];
  try {
    const filenames = await fs.promises.readdir(fullMetaEditsFolderPath);

    for (const filename of filenames) {
      try {
        const fullFilename = path.join(fullMetaEditsFolderPath, filename);

        const stats = await fs.promises.stat(fullFilename);

        const raw = await readJsonFile(fullFilename);
        const parsed = parseMetaEdit(raw);

        files.push({
          filename: filename,
          mtime: stats.mtimeMs,
          content: parsed,
        });
      } catch (error: any) { errors.push(error); }
    }
  } catch (error: any) { errors.push(error); }

  // Abort if any file failed to load
  if (errors.length > 0) {
    return {
      aborted: true,
      errors: errors,
    };
  }

  // Order meta edits
  files.sort((a, b) => a.mtime - b.mtime); // Oldest first

  // Combine edits from all meta edits
  const combinedMetas: CombinedMetaRecord = {};
  for (const file of files) {
    for (const meta of file.content.metas) {
      let combined = combinedMetas[meta.id];
      if (!combined) {
        combined = combinedMetas[meta.id] = {};
      }

      const keys = Object.keys(meta) as (keyof typeof meta)[];
      for (const key of keys) {
        if (key !== 'id') { // (ID is for identification, not to be modified)
          // TODO: Fix values typing later
          let values: any = combined[key];
          if (!values) {
            values = combined[key] = [];
          }

          const metaValue = meta[key];
          const isDuplicate = values.some((val: MetaChangeBase<keyof MetaEditMetaMap>) => (
            (val.value === metaValue) ||