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

const projectRoot = path.resolve(__dirname, '..')
const repoRoot = path.resolve(projectRoot, '..')
const sourceDir = path.join(repoRoot, 'sgs-map-sdk-release', 'engine')
const targetDir = path.join(projectRoot, 'public', 'engine')

if (!fs.existsSync(sourceDir)) {
  throw new Error(`SDK Engine source not found: ${sourceDir}`)
}

const publicDir = path.join(projectRoot, 'public')
const resolvedTarget = path.resolve(targetDir)
if (!resolvedTarget.startsWith(path.resolve(publicDir) + path.sep)) {
  throw new Error(`Refusing to write outside public directory: ${resolvedTarget}`)
}

const rewriteTextFiles = (dir) => {
  const replacements = [
    ['http://1.92.206.90:9000/museum-assets', '/museum-assets'],
    ['http://1.92.206.90:9000/tts-audio', '/tts-audio'],
    ['http://1.92.206.90:9000', 'http://legacy-minio.local:9000'],
    ['https://1.92.206.90:9000', 'https://legacy-minio.local:9000'],
    ['https://guide.whaoyue.com/museum-assets', '/museum-assets'],
    ['https://guide.whaoyue.com/tts-audio', '/tts-audio'],
    ['https://guide.whaoyue.com/app-api', '/app-api']
  ]

  for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
    const filePath = path.join(dir, entry.name)
    if (entry.isDirectory()) {
      rewriteTextFiles(filePath)
      continue
    }
    if (!entry.isFile() || !/\.(?:html|js|mjs|json|css|map)$/i.test(entry.name)) continue

    let text = fs.readFileSync(filePath, 'utf8')
    const original = text
    for (const [from, to] of replacements) {
      text = text.split(from).join(to)
    }
    if (text !== original) fs.writeFileSync(filePath, text, 'utf8')
  }
}

fs.rmSync(targetDir, { recursive: true, force: true })
fs.mkdirSync(path.dirname(targetDir), { recursive: true })
fs.cpSync(sourceDir, targetDir, { recursive: true })
rewriteTextFiles(targetDir)

console.log(`Synced SDK Engine: ${sourceDir} -> ${targetDir}`)