import React, { useState, useEffect } from 'react'
import { View, Text } from '@tarojs/components'
import Price from '@/components/common/Price'

interface PayModalProps {
  visible: boolean
  amount: string
  onClose: () => void
  onConfirm: (payType: number) => void
}

const PAY_TYPES = [
  { id: 0, name: '货到付款', desc: '送达时支付', icon: 'pay-cod' },
]

const PayModal: React.FC<PayModalProps> = ({ visible, amount, onClose, onConfirm }) => {
  const [selected, setSelected] = useState<number>(0)
  const [showOverlay, setShowOverlay] = useState(false)
  const [slideUp, setSlideUp] = useState(false)

  // 控制动画
  useEffect(() => {
    if (visible) {
      setShowOverlay(true)
      setTimeout(() => setSlideUp(true), 10)
    } else {
      setSlideUp(false)
      setTimeout(() => setShowOverlay(false), 300)
    }
  }, [visible])

  const handleClose = () => {
    setSlideUp(false)
    setTimeout(() => {
      setShowOverlay(false)
      onClose()
    }, 300)
  }

  const handleConfirm = () => {
    handleClose()
    onConfirm(selected)
  }

  if (!showOverlay) return null

  return (
    <View className='pay-modal-overlay'>
      {/* 遮罩层 */}
      <View
        className={`absolute inset-0 bg-black/50 z-50 ${slideUp ? 'opacity-100' : 'opacity-0'}`}
        onClick={handleClose}
      />

      {/* 弹窗内容 */}
      <View
        className={`absolute bottom-0 left-0 right-0 bg-white rounded-t-2xl z-50 ${slideUp ? '' : 'hidden'}`}
      >
        <View className='p-4'>
          {/* 关闭按钮 */}
          <View className='flex justify-end mb-2'>
            <View 
              className='w-6 h-6 rounded-full bg-gray-100 flex items-center justify-center'
              onClick={handleClose}
            >
              <Text className='text-gray-400 text-sm'>×</Text>
            </View>
          </View>

          <View className='text-center py-3 border-b border-gray-100'>
            <Text className='text-base font-medium'>选择支付方式</Text>
            <View className='mt-2'>
              <Price price={amount} size='large' />
            </View>
          </View>

          <View className='py-3'>
            {PAY_TYPES.map((item) => (
              <View
                key={item.id}
                className='flex items-center justify-between py-3 px-2 rounded-lg mb-1'
                style={{ backgroundColor: selected === item.id ? '#f0fdf4' : 'transparent' }}
                onClick={() => setSelected(item.id)}
              >
                <View className='flex items-center gap-3'>
                  <View className='w-8 h-8 rounded-full bg-green-50 flex items-center justify-center'>
                    <Text className='text-sm'>
                      {item.id === 0 ? '货' : (item.id === 1 ? '微' : '余')}
                    </Text>
                  </View>
                  <View>
                    <Text className='text-sm text-gray-800'>{item.name}</Text>
                    <Text className='text-xs text-gray-400'>{item.desc}</Text>
                  </View>
                </View>
                <View
                  className={`w-5 h-5 rounded-full border-2 flex items-center justify-center ${
                    selected === item.id ? 'border-green-500' : 'border-gray-300'
                  }`}
                >
                  {selected === item.id && (
                    <View className='w-2 h-2 rounded-full bg-green-500' />
                  )}
                </View>
              </View>
            ))}
          </View>

          <View
            className='w-full py-3 rounded-full text-center text-white text-sm font-medium mt-2'
            style={{ backgroundColor: '#0e932e' }}
            onClick={handleConfirm}
          >
            <Text className='text-white'>确认支付</Text>
          </View>
        </View>
      </View>
    </View>
  )
}

export default PayModal
