import fs from 'fs'
import path from 'path'

const projectRoot = process.cwd()
const dataRoot = path.join(projectRoot, 'public', 'Data')
const outputPath = path.join(projectRoot, 'public', 'data.json')

const isDirectory = (target) => {
  try {
    return fs.statSync(target).isDirectory()
  } catch {
    return false
  }
}

const listDirectories = (target) => {
  if (!isDirectory(target)) return []
  return fs.readdirSync(target).filter((entry) => isDirectory(path.join(target, entry)))
}

const buildManifest = () => {
  const games = []
  const gameNames = listDirectories(dataRoot)
  gameNames.forEach((gameName) => {
    const gamePath = path.join(dataRoot, gameName)
    const categories = []
    const categoryNames = listDirectories(gamePath)
    categoryNames.forEach((categoryName) => {
      const songsDir = path.join(gamePath, categoryName, 'Songs')
      const answersDir = path.join(gamePath, categoryName, 'Answers')
      const clues = []
      for (let i = 1; i <= 5; i += 1) {
        const songPath = path.join('Data', gameName, categoryName, 'Songs', `${i}.mp3`)
        const answerPath = path.join('Data', gameName, categoryName, 'Answers', `${i}.mp3`)
        const songExists = fs.existsSync(path.join(dataRoot, gameName, categoryName, 'Songs', `${i}.mp3`))
        const answerExists = fs.existsSync(
          path.join(dataRoot, gameName, categoryName, 'Answers', `${i}.mp3`)
        )
        clues.push({
          number: i,
          points: i * 100,
          song: songExists ? `/${songPath.replace(/\\/g, '/')}` : null,
          answer: answerExists ? `/${answerPath.replace(/\\/g, '/')}` : null
        })
      }
      categories.push({
        name: categoryName,
        clues
      })
    })
    games.push({
      name: gameName,
      categories
    })
  })
  return games
}

const main = () => {
  if (!isDirectory(dataRoot)) {
    fs.writeFileSync(outputPath, JSON.stringify([], null, 2))
    return
  }
  const manifest = buildManifest()
  fs.writeFileSync(outputPath, JSON.stringify(manifest, null, 2))
}

main()