Function showFilePickerAndReadFile

blue_modules/fs.ts:139–181

()

};

export const showFilePickerAndReadFile = async function (): Promise<{ data: string | false; uri: string | false }> {
  try {
    const [pickedFile] = await pick({
      type: [types.allFiles],
    });

    const [localCopy] = await keepLocalCopy({
      files: [
        {
          uri: pickedFile.uri,
          fileName: pickedFile.name ?? 'unnamed',
        },
      ],
      destination: 'cachesDirectory',
    });

    if (localCopy.status !== 'success') {
      // to make ts happy, should not need this check here
      presentAlert({ message: 'Picking and caching a file failed: ' + localCopy.copyError });
      return { data: false, uri: false };
    }

    const fileCopyUri = decodeURI(localCopy.localUri);

    if (localCopy.localUri.toLowerCase().endsWith('.psbt')) {
      // this is either binary file from ElectrumDesktop OR string file with base64 string in there
      const file = await _readPsbtFileIntoBase64(fileCopyUri);
      return { data: file, uri: fileCopyUri };
    }

    if (localCopy.localUri.endsWith('.png') || localCopy.localUri.endsWith('.jpg') || localCopy.localUri.endsWith('.jpeg')) {
      return await handleImageFile(fileCopyUri);
    }

    const file = await RNFS.readFile(fileCopyUri);
    return { data: file, uri: fileCopyUri };
  } catch (err: any) {
    if (!isCancel(err)) {
      presentAlert({ message: err.message });
    }
    return { data: false, uri: false };
  }
};

const readFileAsBase64 = async (uri: string): Promise<string> => {
  try {