Massive/write.ts

import { PermissionsAndroid, Platform } from 'react-native'
import { Dirs, FileSystem } from 'react-native-file-access'
import { toast } from './toast'

export const write = async (name: string, data: string) => {
  const filePath = `${Dirs.DocumentDir}/${name}`
  const permission = async () => {
    if (Platform.OS !== 'android') return true
    const granted = await PermissionsAndroid.request(
      PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE,
    )
    return granted === PermissionsAndroid.RESULTS.GRANTED
  }
  const granted = await permission()
  if (!granted) return
  await FileSystem.writeFile(filePath, data)
  if (Platform.OS === 'android') {
    await FileSystem.cpExternal(filePath, name, 'downloads')
  }
  toast(`Downloaded ${name}`)
}