@mediafly/translate/src/import.js

Translate strings extracted from apps using Google Translate

var fs = require('fs')
var assert = require('assert')
var crypto = require('crypto')
var chalk = require('chalk')
var GoogleSpreadsheet = require('google-spreadsheet')
var path = require('path')
var highland = require('highland')
var flatten = require('flat')
var { getLanguageName, getTranslationsDir } = require('./util')

const TRANSLATIONS_DIRECTORY = getTranslationsDir()

async function importFunc() {
	var readFile = require('./read-file').read
	var config = require(path.join(process.cwd(), 'mediafly-translate.config'))
	assert(config.googleSheetId !== '[YOUR GOOGLE SHEET ID]', 'Configure googleSheetId in mediafly-translate.config.json to import from Google Sheets.')
	var format = config.format || 'json'
	var creds = config.googleSheetsCredentials
	var sheetId = config.googleSheetId
	var languages = config.languages
	var doc = new GoogleSpreadsheet.GoogleSpreadsheet(sheetId)
	var fileFormat = require('./format')

	try {
		await doc.useServiceAccountAuth(creds)
	} catch (error) {
		console.error(`${chalk.red('Cannot authenticate with Google Sheets')}`)
		console.error(`${chalk.red(err)}`)
	}

	try {
		await doc.getInfo()

	} catch (error) {
		console.error(`${chalk.red('Cannot access sheet')}`)
		console.error(`Verify that it is accessible to the service account being used by mediafly-translate`)
	}


	languages.map(language => {
		if (language === 'ke') {
			return
		}

		var languageName = getLanguageName(language)

		var foreignFile = (config.format === 'js')
			? flatten(readFile(`locale-${language}`).default)
			: flatten(readFile(`locale-${language}`))

		let languageSheet = doc.sheetsByIndex.find(s => s.title === languageName)

		if (!languageSheet) {
			err = new Error(`${languageName} sheet not found`)
			console.error(chalk.red(err.message))
			throw(err)
		}

		var rowsStream = highland(languageSheet.getRows())

		var writeFileOptions

		if (format === 'strings') {
			writeFileOptions = { encoding: 'ucs2' }
		}

		rowsStream
			.fork()
			.map((arr) => {
				return arr.reduce((a, b) => {
					if (b.Override) {
						return highland.set(b.Key, b.Override, a)
					} else {
						return highland.set(b.Key, b[languageName], a)
					}
				}, {})
			})
			.map(obj => Object.assign(foreignFile, obj))
			.map(fileFormat.transform)
			.doto(() => {
				console.log(chalk.green(`Imported ${languageName} from Google Sheets successfully!`))
			})
			.pipe(fs.createWriteStream(`${TRANSLATIONS_DIRECTORY}/locale-${language}.${format}`), writeFileOptions)
	})
}

module.exports = {
	handler: importFunc
}