Function writeFiles

src/modules/OPFS.ts:19–60

(
  newFiles: File[]
)

}

export async function writeFiles(
  newFiles: File[]
): Promise<{ [key: string]: string }> {
  console.log('save file to OPFS', newFiles);
  if (!newFiles.length) return {};

  const storageRoot = await getRoot();
  const filenameMapping: { [key: string]: string } = {};

  if (storageRoot) {
    for (const file of newFiles) {
      const originalFileName = file.name;
      const newSubDir = await storageRoot.getDirectoryHandle('fileuploads', {
        create: true,
      });

      let newFileName = file.name;
      let fileExists = await checkFileExists(newSubDir, newFileName);
      let counter = 1;

      while (fileExists) {
        newFileName = addSuffixToFile(file.name, counter);
        fileExists = await checkFileExists(newSubDir, newFileName);
        counter++;
      }

      const newFile = await newSubDir.getFileHandle(newFileName, {
        create: true,
      });

      const wtr = await newFile.createWritable();
      try {
        await wtr.write(await file.arrayBuffer());
        filenameMapping[originalFileName] = newFileName; // Map the original filename to the new filename
      } finally {
        await wtr.close();
      }
    }
  }

  return filenameMapping; // Return the mapping object
}

async function checkFileExists(
  directoryHandle: FileSystemDirectoryHandle,