import React, { useState } from 'react'
import { View, Text } from '@tarojs/components'
import { Button, Popup, Radio, RadioGroup, Divider } from '@nutui/nutui-react-taro'
import { Filter, Close } from '@nutui/icons-react-taro'

export interface CouponFilterProps {
  /** 是否显示筛选器 */
  visible: boolean
  /** 当前筛选条件 */
  filters: {
    type?: number[]
    minAmount?: number
    sortBy?: 'createTime' | 'amount' | 'expireTime'
    sortOrder?: 'asc' | 'desc'
  }
  /** 筛选条件变更回调 */
  onFiltersChange: (filters: any) => void
  /** 关闭回调 */
  onClose: () => void
}

const CouponFilter: React.FC<CouponFilterProps> = ({
  visible,
  filters,
  onFiltersChange,
  onClose
}) => {
  const [tempFilters, setTempFilters] = useState(filters)

  // 优惠券类型选项
  const typeOptions = [
    { label: '全部类型', value: '' },
    { label: '满减券', value: '10' },
    { label: '折扣券', value: '20' },
    { label: '免费券', value: '30' }
  ]

  // 最低金额选项
  const minAmountOptions = [
    { label: '不限', value: '' },
    { label: '10元以上', value: '10' },
    { label: '50元以上', value: '50' },
    { label: '100元以上', value: '100' },
    { label: '200元以上', value: '200' }
  ]

  // 排序选项
  const sortOptions = [
    { label: '创建时间', value: 'createTime' },
    { label: '优惠金额', value: 'amount' },
    { label: '到期时间', value: 'expireTime' }
  ]

  // 排序方向选项
  const sortOrderOptions = [
    { label: '升序', value: 'asc' },
    { label: '降序', value: 'desc' }
  ]

  // 重置筛选条件
  const handleReset = () => {
    const resetFilters = {
      type: [],
      minAmount: undefined,
      sortBy: 'createTime' as const,
      sortOrder: 'desc' as const
    }
    setTempFilters(resetFilters)
  }

  // 应用筛选条件
  const handleApply = () => {
    onFiltersChange(tempFilters)
    onClose()
  }

  // 更新临时筛选条件
  const updateTempFilters = (key: string, value: any) => {
    setTempFilters(prev => ({
      ...prev,
      [key]: value
    }))
  }

  return (
    <Popup
      visible={visible}
      position="right"
      style={{ width: '80%', height: '100%' }}
    >
      <View className="h-full flex flex-col">
        {/* 头部 */}
        <View className="flex items-center justify-between p-4 border-b border-gray-100">
          <View className="flex items-center">
            <Filter size="20" className="text-gray-600 mr-2" />
            <Text className="text-lg font-semibold">筛选条件</Text>
          </View>
          <View onClick={onClose}>
            <Close size="20" className="text-gray-600" />
          </View>
        </View>

        {/* 筛选内容 */}
        <View className="flex-1 overflow-y-auto p-4">
          {/* 优惠券类型 */}
          <View className="mb-6">
            <Text className="text-base font-semibold mb-3 text-gray-900">
              优惠券类型
            </Text>
            <RadioGroup
              value={tempFilters.type?.[0]?.toString() || ''}
              onChange={(value) => {
                updateTempFilters('type', value ? [parseInt(value)] : [])
              }}
            >
              {typeOptions.map(option => (
                <Radio key={option.value} value={option.value} className="mb-2">
                  {option.label}
                </Radio>
              ))}
            </RadioGroup>
          </View>

          <Divider />

          {/* 最低消费金额 */}
          <View className="mb-6">
            <Text className="text-base font-semibold mb-3 text-gray-900">
              最低消费金额
            </Text>
            <RadioGroup
              value={tempFilters.minAmount?.toString() || ''}
              onChange={(value) => {
                updateTempFilters('minAmount', value ? parseInt(value) : undefined)
              }}
            >
              {minAmountOptions.map(option => (
                <Radio key={option.value} value={option.value} className="mb-2">
                  {option.label}
                </Radio>
              ))}
            </RadioGroup>
          </View>

          <Divider />

          {/* 排序方式 */}
          <View className="mb-6">
            <Text className="text-base font-semibold mb-3 text-gray-900">
              排序方式
            </Text>
            <RadioGroup
              value={tempFilters.sortBy || 'createTime'}
              onChange={(value) => updateTempFilters('sortBy', value)}
            >
              {sortOptions.map(option => (
                <Radio key={option.value} value={option.value} className="mb-2">
                  {option.label}
                </Radio>
              ))}
            </RadioGroup>
          </View>

          <Divider />

          {/* 排序方向 */}
          <View className="mb-6">
            <Text className="text-base font-semibold mb-3 text-gray-900">
              排序方向
            </Text>
            <RadioGroup
              value={tempFilters.sortOrder || 'desc'}
              onChange={(value) => updateTempFilters('sortOrder', value)}
            >
              {sortOrderOptions.map(option => (
                <Radio key={option.value} value={option.value} className="mb-2">
                  {option.label}
                </Radio>
              ))}
            </RadioGroup>
          </View>
        </View>

        {/* 底部按钮 */}
        <View className="p-4 border-t border-gray-100">
          <View className="flex gap-3">
            <Button
              fill="outline"
              size="large"
              className="flex-1"
              onClick={handleReset}
            >
              重置
            </Button>
            <Button
              type="primary"
              size="large"
              className="flex-1"
              onClick={handleApply}
            >
              应用
            </Button>
          </View>
        </View>
      </View>
    </Popup>
  )
}

export default CouponFilter
