const fs = require('fs')
const path = require('path')
const infile = path.join(__dirname, '..', '..', 'CH.txt')
const out = fs.readFileSync(infile, 'utf8')
const lines = out.split(/\r?\n/)
const map = new Map()
for (const line of lines) {
  if (!line || line.trim() === '') continue
  const parts = line.split('\t')
  // parts: 0=CH,1=zip,2=name,3=canton full,4=canton code...
  const zip = parts[1]
  const name = parts[2]
  const canton = parts[4] || ''
  if (!zip) continue
  if (!map.has(zip)) {
    map.set(zip, { zip, city: name, canton })
  }
}
const arr = Array.from(map.values())
function escapeStr(s){ return s.replace(/\\/g,'\\\\').replace(/'/g, "\\'") }
let ts = 'export const SWISS_CITIES = [\n'
for (const e of arr) {
  ts += `  { zip: '${escapeStr(e.zip)}', city: '${escapeStr(e.city)}', canton: '${escapeStr(e.canton)}' },\n`
}
ts += ']\n'
console.log(ts)