Fixes the incorrect latin-1 encoding for Thai JSON files. Put in ~/bin/fix-json-encoding

fix-encoding.js

#!/usr/bin/env node

const fs = require('fs')
const path = require('path')

function traverse(o, func) {
  for (let i in o) {
    o[i] = func(i, o[i])

    if (o[i] && typeof o[i] == 'object') {
      //going one step down in the object tree!!
      traverse(o[i], func)
    }
  }
}

// argv[0] and [1] is used for ['node', 'fix-encoding']
let [_, __, inputPath, outputPath] = process.argv

if (!inputPath) {
  console.error('Usage: fix-encoding <input-file> <output-file?>')

  process.exit(1)
}

if (!outputPath) {
  outputPath = inputPath

  console.log('> Overwriting the input file...')
}

const file = fs.readFileSync(path.resolve(inputPath))
const object = JSON.parse(file.toString())

console.log('> Fixing Encoding of', inputPath)

traverse(object, (key, value) => {
  if (typeof value === 'string') {
    const txt = Buffer.from(value, 'latin1').toString()
    // console.log(txt)
    return txt
  }

  return value
})

fs.writeFileSync(path.resolve(outputPath), JSON.stringify(object, null, 2))

console.log('> Files with correct encoding is written to', outputPath)