fix-scaling.js

const fs = require('fs')

async function main () {
  const files = await fs.promises.readdir('.')
  for (const file of files) {
    if (!file.endsWith('.ass')) continue
    const data = await fs.promises.readFile(file, 'utf-8')
    const lines = data.split(/\r?\n/g)
    
    const timeCounts = {}
    for (let i = 0; i < lines.length; i++) {
      const line = lines[i]
      if (!line.startsWith('Dialogue:')) continue
      const parts = line.split(',')
      const count = timeCounts[parts[1]] = (timeCounts[parts[1]] || 0) + 1
      parts[0] = 'Dialogue: ' + (timeCounts[parts[1]] - 1)
      lines[i] = parts.join(',').replace(/\\pos\(640,[^)]+\)/g, '')
    }
    
    await fs.promises.writeFile(file, lines.join('\r\n'))
  }
}

main().catch(e => {
  console.error(e)
  process.exit(1)
})