#!/usr/bin/env node

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

const ROOT = path.join(__dirname, '..', 'miniprogram')
const TARGET_EXTENSIONS = new Set(['.js', '.json', '.wxml', '.wxss'])

function walk(dir, files = []) {
  const entries = fs.readdirSync(dir, { withFileTypes: true })
  for (const entry of entries) {
    const fullPath = path.join(dir, entry.name)
    if (fullPath.includes(`${path.sep}workers${path.sep}svg-generator${path.sep}vendor${path.sep}`)) {
      continue
    }
    if (fullPath.includes(`${path.sep}i18n${path.sep}`)) {
      continue
    }
    if (fullPath.endsWith('.miniapp.json')) {
      continue
    }
    if (entry.isDirectory()) {
      walk(fullPath, files)
      continue
    }
    const ext = path.extname(entry.name)
    if (TARGET_EXTENSIONS.has(ext)) {
      files.push(fullPath)
    }
  }
  return files
}

function main() {
  console.log('开始执行小程序代码规范检查...')

  const files = walk(ROOT)
  const violations = []

  for (const file of files) {
    const content = fs.readFileSync(file, 'utf8')
    const lines = content.split(/\r?\n/)
    for (let i = 0; i < lines.length; i += 1) {
      const line = lines[i]
      if (/\t/.test(line)) {
        violations.push(`${file}:${i + 1} 使用了 Tab 缩进`)
      }
      if (/\s+$/.test(line)) {
        violations.push(`${file}:${i + 1} 存在行尾空格`)
      }
    }
  }

  if (violations.length > 0) {
    console.error('发现代码规范问题：')
    for (const violation of violations) {
      console.error(`- ${violation}`)
    }
    process.exit(1)
  }

  console.log('小程序代码规范检查通过。')
}

main()