/**
 * toast 弹窗组件
 * 支持 success/error/warning/info 四种状态
 * 可配置 duration, position 等参数
 */

type ToastType = 'success' | 'error' | 'warning' | 'info'

interface ToastOptions {
  type?: ToastType
  duration?: number
  position?: 'top' | 'middle' | 'bottom'
  icon?: 'success' | 'error' | 'none' | 'loading' | 'fail' | 'exception'
  message: string
}

export function showToast(options: ToastOptions | string) {
  const defaultOptions: ToastOptions = {
    type: 'info',
    duration: 2000,
    position: 'middle',
    message: '',
  }
  const mergedOptions
    = typeof options === 'string'
      ? { ...defaultOptions, message: options }
      : { ...defaultOptions, ...options }

  // #ifdef APP-PLUS

  // 关闭上一次的提示
  plus.nativeUI.closeToast()

  // 使用 plus.nativeUI.toast 实现
  // 映射 position 到 plus.nativeUI.toast 支持的格式
  const positionMap: Record<ToastOptions['position'], { vertical: string, horizontal: string }> = {
    top: { vertical: 'top', horizontal: 'center' },
    middle: { vertical: 'center', horizontal: 'center' },
    bottom: { vertical: 'bottom', horizontal: 'center' },
  }

  // 映射图标类型
  const plusIconMap: Record<
    ToastType,
    'success' | 'error' | 'none' | 'loading' | 'fail' | 'exception'
  > = {
    success: 'success',
    error: 'error',
    warning: 'fail',
    info: 'none',
  }
  // 安卓平台添加适当偏移，iOS保持默认
  const platform = plus.os.name
  const verticalOffset = platform === 'Android' ? '50%' : 'center'
  // 构造 ToastStyles 配置项
  const toastOptions: any = {
    duration: mergedOptions.duration >= 3000 ? 'long' : 'short',
    ...positionMap[mergedOptions.position],
    align: 'center', // 文字居中对齐
    verticalAlign: verticalOffset, // 垂直位置补偿
    background: 'rgba(0,0,0,0.7)',
    type: 'richtext',
  }

  // 如果有图标配置，则添加图标
  if (mergedOptions.icon || plusIconMap[mergedOptions.type]) {
    toastOptions.icon = mergedOptions.icon || plusIconMap[mergedOptions.type]
  }

  plus.nativeUI.toast(`<font style=\"color:#fff;font-size:16px;\">${mergedOptions.message}</font>`, toastOptions)
  return
  // #endif

  // #ifndef APP-PLUS
  // 映射position到uniapp支持的格式
  const uniPositionMap: Record<ToastOptions['position'], 'top' | 'bottom' | 'center'> = {
    top: 'top',
    middle: 'center',
    bottom: 'bottom',
  }

  // 映射图标类型
  const uniIconMap: Record<
    ToastType,
    'success' | 'error' | 'none' | 'loading' | 'fail' | 'exception'
  > = {
    success: 'success',
    error: 'error',
    warning: 'fail',
    info: 'none',
  }

  // 调用uni.showToast显示提示
  uni.showToast({
    title: mergedOptions.message,
    duration: mergedOptions.duration,
    position: uniPositionMap[mergedOptions.position],
    icon: mergedOptions.icon || uniIconMap[mergedOptions.type],
    mask: true,
  })
  // #endif
}

export const toast = {
  success: (message: string, options?: Omit<ToastOptions, 'type'>) =>
    showToast({ ...options, type: 'success', message }),
  error: (message: string, options?: Omit<ToastOptions, 'type'>) =>
    showToast({ ...options, type: 'error', message }),
  warning: (message: string, options?: Omit<ToastOptions, 'type'>) =>
    showToast({ ...options, type: 'warning', message }),
  info: (message: string, options?: Omit<ToastOptions, 'type'>) =>
    showToast({ ...options, type: 'info', message }),
}