import { ref } from 'vue'
import { useLocale } from '~/utils/locale'

interface ToastMessage {
  id: number
  message: string
  type: 'success' | 'error' | 'info' | 'warning'
  duration: number
}

const toasts = ref<ToastMessage[]>([])
let toastId = 0

const exactToastTranslations = new Map<string, string>([
  ['需要登录才能点歌', 'Please sign in to request songs'],
  ['需要登录才能投票', 'Please sign in to vote'],
  ['您已经为这首歌投过票了', 'You have already voted for this song'],
  ['需要登录才能撤回歌曲', 'Please sign in to withdraw songs'],
  ['需要登录才能删除歌曲', 'Please sign in to delete songs'],
  ['歌曲已成功删除', 'Song deleted successfully'],
  ['歌曲已成功删除！', 'Song deleted successfully'],
  ['需要登录才能标记歌曲', 'Please sign in to mark songs'],
  ['歌曲已成功标记为已播放！', 'Song marked as played successfully'],
  ['需要登录才能撤回歌曲已播放状态', 'Please sign in to revert played status'],
  ['歌曲已成功撤回已播放状态！', 'Song played status reverted successfully'],
  ['需要登录才能申请重播', 'Please sign in to request replay'],
  ['申请重播成功', 'Replay request submitted'],
  ['您已经申请过重播这首歌了', 'You have already requested replay for this song'],
  ['需要登录才能取消重播申请', 'Please sign in to cancel replay request'],
  ['已取消重播申请', 'Replay request canceled'],
  ['没有上一首歌曲', 'No previous song'],
  ['没有下一首歌曲', 'No next song'],
  ['播放上一首歌曲失败', 'Failed to play previous song'],
  ['播放下一首歌曲失败', 'Failed to play next song'],
  [
    '浏览器限制了自动播放，请点击播放器中的播放按钮继续播放',
    'The browser blocked autoplay. Click the play button in the player to continue.'
  ],
  [
    '浏览器拦截了新标签页，请允许弹窗后重试',
    'The browser blocked the new tab. Allow pop-ups and try again.'
  ],
  ['已为你打开原始链接', 'Opened the original link for you'],
  ['当前播放链接无效，已切换备用音源', 'Current playback link is invalid. Switched to a backup source.'],
  [
    '连续多首歌曲播放失败，已停止自动播放',
    'Multiple songs failed to play consecutively. Autoplay has been stopped.'
  ],
  ['哔哩哔哩视频播放失败，自动跳过', 'Bilibili video playback failed. Skipping automatically.'],
  ['已切换为单曲循环', 'Switched to single-track loop'],
  ['已切换为单曲播放', 'Switched to single-track playback'],
  ['已切换为列表循环', 'Switched to playlist loop'],
  ['请先登录网易云账号后再点赞评论', 'Please sign in to NetEase Cloud Music before liking comments'],
  ['评论点赞失败', 'Failed to like comment'],
  ['导入失败', 'Import failed'],
  ['预览已刷新', 'Preview refreshed'],
  ['正在准备打印', 'Preparing print...'],
  ['正在准备打印...', 'Preparing print...'],
  ['PDF导出成功', 'PDF exported successfully'],
  ['正在准备PDF', 'Preparing PDF...'],
  ['正在准备PDF...', 'Preparing PDF...'],
  ['预览内容未找到', 'Preview content not found'],
  ['排期内容过长，将自动分段导出', 'Schedule content is too long. It will be exported in sections.'],
  ['图片导出成功', 'Image exported successfully'],
  ['当前没有排期数据，请先在排期管理中添加排期', 'No schedule data yet. Add schedules in Schedule Management first.'],
  ['快速合并内存不足，已切换兼容模式重试', 'Not enough memory for quick merge. Retrying in compatibility mode.'],
  ['导入环境配置失败', 'Failed to import environment configuration'],
  ['批量更新状态成功', 'Batch status updated successfully'],
  ['用户更新成功', 'User updated successfully'],
  ['用户创建成功', 'User created successfully'],
  ['用户删除成功', 'User deleted successfully'],
  ['禁止在用户管理中修改自己的账户', 'You cannot modify your own account in User Management'],
  ['禁止在用户管理中重置自己的密码', 'You cannot reset your own password in User Management'],
  ['不能删除自己的账户', 'You cannot delete your own account'],
  ['密码重置成功', 'Password reset successfully'],
  [
    'Excel处理库加载失败，请刷新页面后重试',
    'Failed to load the Excel processing library. Refresh the page and try again.'
  ],
  ['歌曲已成功上传到网易云音乐云盘', 'Song uploaded to NetEase Cloud Music Drive successfully'],
  [
    '数据库恢复完成，3秒后将返回首页重新登录',
    'Database restore completed. Returning home to sign in again in 3 seconds.'
  ],
  ['无法解析备份文件，请检查文件格式是否正确', 'Unable to parse backup file. Please check the file format.'],
  ['无法解析备份文件，请检查文件格式是否正确。', 'Unable to parse backup file. Please check the file format.'],
  ['备份创建失败：无效的响应格式', 'Backup creation failed: invalid response format'],
  ['备份创建失败：服务器响应格式错误', 'Backup creation failed: invalid server response format'],
  ['文件下载失败', 'File download failed'],
  ['未知错误', 'Unknown error']
])

const toastOperationTranslations = new Map<string, string>([
  ['播放', 'Playback'],
  ['上传', 'Upload'],
  ['预下载', 'Pre-download'],
  ['合并', 'Merge'],
  ['加载排期', 'Loading schedule'],
  ['打印', 'Print'],
  ['导出PDF', 'PDF export'],
  ['导出长图', 'Long image export'],
  ['文件下载', 'File download'],
  ['删除用户', 'Deleting user'],
  ['加载用户', 'Loading users'],
  ['导入备份', 'Backup import'],
  ['备份导入', 'Backup import'],
  ['创建备份', 'Backup creation'],
  ['保存用户', 'Saving user'],
  ['重置密码', 'Password reset'],
  ['批量更新', 'Batch update'],
  ['添加歌曲', 'Adding song'],
  ['更新歌曲', 'Updating song'],
  ['删除歌曲', 'Deleting song'],
  ['批量删除', 'Batch deletion'],
  ['驳回歌曲', 'Rejecting song'],
  ['刷新歌曲', 'Refreshing songs'],
  ['标记已播放', 'Marking as played'],
  ['标记未播放', 'Marking as unplayed'],
  ['导入', 'Import']
])

const translateToastDetail = (detail: string) => exactToastTranslations.get(detail.trim()) || detail

const normalizeToastMessage = (message: unknown): string => {
  if (typeof message === 'string') return message
  return String(message ?? '')
}

const translateToastMessage = (message: unknown, locale: string) => {
  const normalizedMessage = normalizeToastMessage(message)
  if (locale === 'zh-CN') return normalizedMessage

  const normalized = normalizedMessage.trim()
  const withoutPunctuation = normalized.replace(/[。！]$/, '')

  const exactMatch = exactToastTranslations.get(normalized)
  if (exactMatch) return exactMatch

  const punctuationlessMatch = exactToastTranslations.get(withoutPunctuation)
  if (punctuationlessMatch) return punctuationlessMatch

  const dynamicRules: Array<[RegExp, (match: RegExpMatchArray) => string]> = [
    [/^已取消对歌曲《(.+)》的投票$/, (match) => `Vote for "${match[1]}" canceled`],
    [/^为歌曲《(.+)》投票成功！?$/, (match) => `Voted for "${match[1]}" successfully`],
    [/^备份文件已下载[:：]\s*(.+)$/, (match) => `Backup file downloaded: ${match[1]}`],
    [/^文件下载失败[:：]\s*(.+)$/, (match) => `File download failed: ${translateToastDetail(match[1])}`],
    [/^成功下载\s*(\d+)\s*首歌曲$/, (match) => `Downloaded ${match[1]} songs successfully`],
    [/^已完成分段导出，共\s*(\d+)\s*张图片$/, (match) => `Sectioned export completed with ${match[1]} images`],
    [/^部分更新成功，(\d+)\s*个用户因权限或状态等原因跳过$/, (match) => `Partially updated successfully. ${match[1]} users were skipped due to permissions or status.`],
    [/^成功更新\s*(\d+)\s*个用户的年级$/, (match) => `Updated grades for ${match[1]} users successfully`],
    [/^(.+?)失败[:：]\s*(.+)$/, (match) => {
      const operation = toastOperationTranslations.get(match[1]) || match[1]
      return `${operation} failed: ${translateToastDetail(match[2])}`
    }]
  ]

  for (const [pattern, translate] of dynamicRules) {
    const match = normalized.match(pattern)
    if (match) return translate(match)
  }

  return normalizedMessage
}

export const useToast = () => {
  const { currentLocale } = useLocale()

  const showToast = (
    message: unknown,
    type: 'success' | 'error' | 'info' | 'warning' = 'info',
    duration = 3000
  ) => {
    const id = ++toastId
    const toast: ToastMessage = {
      id,
      message: translateToastMessage(message, currentLocale.value),
      type,
      duration
    }

    toasts.value.push(toast)

    // 自动移除toast
    setTimeout(() => {
      removeToast(id)
    }, duration)

    return id
  }

  const removeToast = (id: number) => {
    const index = toasts.value.findIndex((toast) => toast.id === id)
    if (index > -1) {
      toasts.value.splice(index, 1)
    }
  }

  const success = (message: unknown, duration?: number) => showToast(message, 'success', duration)
  const error = (message: unknown, duration?: number) => showToast(message, 'error', duration)
  const info = (message: unknown, duration?: number) => showToast(message, 'info', duration)
  const warning = (message: unknown, duration?: number) => showToast(message, 'warning', duration)

  return {
    toasts,
    showToast,
    removeToast,
    success,
    error,
    info,
    warning
  }
}