import fs from 'node:fs/promises'
import path from 'node:path'
import readline from 'node:readline/promises'
import { stdin as input, stdout as output } from 'node:process'

import {
  CLEAN_DEV_TARGETS,
  ROUTE_MODULES_TO_REMOVE,
  buildMinimalRouteModuleFiles,
  createMinimalChangeLogContent,
  createMinimalFastEnterContent,
  createMinimalRoutesAliasContent,
  pruneLocaleMessages,
  rewriteMenuApiContent
} from './clean-dev.helpers.mjs'

const projectRoot = process.cwd()

async function pathExists(relativePath) {
  try {
    await fs.access(path.resolve(projectRoot, relativePath))
    return true
  } catch {
    return false
  }
}

async function countTargetEntries(targets) {
  let count = 0

  for (const target of targets) {
    if (await pathExists(target)) {
      count += 1
    }
  }

  return count
}

async function removeTarget(relativePath) {
  await fs.rm(path.resolve(projectRoot, relativePath), {
    recursive: true,
    force: true
  })
}

async function writeText(relativePath, content) {
  await fs.writeFile(path.resolve(projectRoot, relativePath), content, 'utf8')
}

async function rewriteLocale(relativePath) {
  const fullPath = path.resolve(projectRoot, relativePath)
  const locale = JSON.parse(await fs.readFile(fullPath, 'utf8'))
  const nextLocale = pruneLocaleMessages(locale)

  await fs.writeFile(fullPath, `${JSON.stringify(nextLocale, null, 2)}\n`, 'utf8')
}

async function rewriteMenuApi() {
  const relativePath = 'src/api/system-manage.js'
  const fullPath = path.resolve(projectRoot, relativePath)
  const currentContent = await fs.readFile(fullPath, 'utf8')
  const nextContent = rewriteMenuApiContent(currentContent)

  await fs.writeFile(fullPath, nextContent, 'utf8')
}

function printSummary(existingTargetCount) {
  console.log('Art Design Pro clean:dev')
  console.log()
  console.log('将执行最小开发版裁剪：')
  console.log('- 删除演示页面、演示资源和多余 mock 数据')
  console.log('- 重写路由模块，只保留 dashboard/system/result/exception')
  console.log('- 清理语言包中的演示菜单项')
  console.log('- 重写快速入口、路由别名、更新日志数据和菜单接口')
  console.log()
  console.log(`检测到 ${existingTargetCount} 个待清理目标存在于当前仓库中。`)
  console.log('输入 yes 继续，按 Enter 取消。')
  console.log()
}

async function confirmExecution() {
  const rl = readline.createInterface({ input, output })

  try {
    const answer = await rl.question('> ')
    return answer.trim().toLowerCase() === 'yes'
  } finally {
    rl.close()
  }
}

async function runCleanup() {
  const existingTargetCount = await countTargetEntries(CLEAN_DEV_TARGETS)
  printSummary(existingTargetCount)

  const confirmed = await confirmExecution()
  if (!confirmed) {
    console.log('已取消 clean:dev。')
    return
  }

  for (const target of CLEAN_DEV_TARGETS) {
    await removeTarget(target)
  }

  const routeFiles = buildMinimalRouteModuleFiles()
  for (const moduleName of ROUTE_MODULES_TO_REMOVE) {
    await removeTarget(path.posix.join('src/router/modules', moduleName))
  }

  await writeText('src/router/modules/dashboard.js', routeFiles.dashboard)
  await writeText('src/router/modules/system.js', routeFiles.system)
  await writeText('src/router/modules/index.js', routeFiles.index)
  await writeText('src/router/routesAlias.js', createMinimalRoutesAliasContent())
  await writeText('src/mock/upgrade/changeLog.js', createMinimalChangeLogContent())
  await writeText('src/config/modules/fastEnter.js', createMinimalFastEnterContent())

  await rewriteLocale('src/locales/langs/zh.json')
  await rewriteLocale('src/locales/langs/en.json')
  await rewriteMenuApi()

  console.log()
  console.log('clean:dev 执行完成。')
  console.log('当前仓库已切换为最小开发版结构。')
}

runCleanup().catch((error) => {
  console.error()
  console.error('clean:dev 执行失败。')
  console.error(error)
  process.exit(1)
})