import { useEffect, useState, useMemo } from 'react'
import { useParams, Link } from 'react-router-dom'
import {
  Layout,
  Typography,
  Space,
  Input,
  Radio,
  Card,
  Tag,
  Button,
  Modal,
  Empty,
  Spin,
  Badge,
  message,
  Descriptions,
  Divider,
} from 'antd'
import {
  ShopOutlined,
  SearchOutlined,
  SafetyCertificateOutlined,
  ThunderboltOutlined,
  CustomerServiceOutlined,
  CopyOutlined,
  CheckCircleOutlined,
  RightCircleOutlined,
  RocketOutlined,
  FireOutlined,
} from '@ant-design/icons'
import {
  fetchPublicSiteListings,
  formatMoney,
  type PublicDistributionListing,
} from '../api'

function formatGameName(gameName?: string): string {
  if (!gameName) return ''
  const lower = gameName.toLowerCase().trim()
  if (
    lower === 'delta_force' ||
    lower === 'deltaforce' ||
    lower === 'delta' ||
    lower.includes('delta_force') ||
    lower.includes('delta') ||
    gameName.includes('三角洲')
  ) {
    return '三角洲'
  }
  if (lower.includes('honor') || gameName.includes('王者')) {
    return '王者荣耀'
  }
  if (lower.includes('genshin') || gameName.includes('原神')) {
    return '原神'
  }
  if (lower.includes('cs') || lower.includes('csgo')) {
    return 'CS2'
  }
  return gameName
}

function formatLoginPlatform(platform?: string): string {
  if (!platform) return ''
  const lower = platform.toLowerCase().trim()
  if (lower === 'qq') return 'QQ'
  if (lower === 'wechat' || lower === 'wx') return '微信'
  if (lower === 'steam') return 'Steam'
  if (lower === 'epic') return 'Epic'
  if (lower === 'wegame') return 'WeGame'
  if (lower === 'mobile') return '手游端'
  if (lower === 'pc') return 'PC端'
  return platform
}

export default function Storefront() {
  const { siteCode = 'demo' } = useParams<{ siteCode: string }>()
  const [loading, setLoading] = useState(true)
  const [items, setItems] = useState<PublicDistributionListing[]>([])
  const [siteName, setSiteName] = useState<string>('')
  const [keyword, setKeyword] = useState<string>('')
  const [gameFilter, setGameFilter] = useState<string>('all')
  const [sortOrder, setSortOrder] = useState<'default' | 'price_asc' | 'price_desc'>('default')
  const [selectedListing, setSelectedListing] = useState<PublicDistributionListing | null>(null)
  const [csModalVisible, setCsModalVisible] = useState(false)

  useEffect(() => {
    let active = true
    setLoading(true)
    fetchPublicSiteListings(siteCode, 1, 100)
      .then((res) => {
        if (!active) return
        setItems(res.items || [])
        if (res.items && res.items.length > 0) {
          setSiteName(res.items[0].site_name)
        }
      })
      .catch(() => {
        if (active) {
          message.error('加载分销商城商品失败，请检查站点标识')
        }
      })
      .finally(() => {
        if (active) setLoading(false)
      })

    return () => {
      active = false
    }
  }, [siteCode])

  const displayName = siteName || `${siteCode.toUpperCase()} 专属分销商城`

  const filteredItems = useMemo(() => {
    let list = [...items]
    if (gameFilter !== 'all') {
      list = list.filter((i) => (i.game_name || '').toLowerCase() === gameFilter.toLowerCase())
    }
    const kw = keyword.trim().toLowerCase()
    if (kw) {
      list = list.filter(
        (i) =>
          (i.title && i.title.toLowerCase().includes(kw)) ||
          (i.listing_no && i.listing_no.toLowerCase().includes(kw)) ||
          (i.server_region && i.server_region.toLowerCase().includes(kw)) ||
          (i.login_platform && i.login_platform.toLowerCase().includes(kw)) ||
          (i.rank_level && i.rank_level.toLowerCase().includes(kw)),
      )
    }
    if (sortOrder === 'price_asc') {
      list.sort((a, b) => a.price_cent - b.price_cent)
    } else if (sortOrder === 'price_desc') {
      list.sort((a, b) => b.price_cent - a.price_cent)
    }
    return list
  }, [items, gameFilter, keyword, sortOrder])

  function handleCopyListingNo(no: string) {
    navigator.clipboard?.writeText(no)
    message.success(`已复制商品编号：${no}`)
  }

  function handleRentNow(listing: PublicDistributionListing) {
    setSelectedListing(listing)
  }

  function openMainCheckout(listing: PublicDistributionListing) {
    const mainHost = window.location.hostname
    // 默认主站前台运行在 5189 端口，生产环境通过域名反代
    const mainUrl = window.location.port
      ? `http://${mainHost}:5189/orders/create?listing_id=${listing.listing_id}&site_code=${listing.site_code}`
      : `/orders/create?listing_id=${listing.listing_id}&site_code=${listing.site_code}`
    window.open(mainUrl, '_blank')
  }

  return (
    <Layout style={{ minHeight: '100vh', background: '#0f172a' }}>
      {/* 顶部导航栏 */}
      <Layout.Header
        style={{
          background: 'rgba(15, 23, 42, 0.95)',
          backdropFilter: 'blur(8px)',
          borderBottom: '1px solid rgba(255, 255, 255, 0.1)',
          display: 'flex',
          justifyContent: 'space-between',
          alignItems: 'center',
          padding: '0 24px',
          position: 'sticky',
          top: 0,
          zIndex: 100,
        }}
      >
        <Space size="middle" align="center">
          <div
            style={{
              width: 38,
              height: 38,
              borderRadius: 8,
              background: 'linear-gradient(135deg, #2563eb, #3b82f6)',
              display: 'flex',
              alignItems: 'center',
              justifyContent: 'center',
              color: '#fff',
              boxShadow: '0 0 16px rgba(59, 130, 246, 0.5)',
            }}
          >
            <ShopOutlined style={{ fontSize: 20 }} />
          </div>
          <div>
            <div style={{ display: 'flex', alignItems: 'center', gap: 8 }}>
              <Typography.Text strong style={{ color: '#fff', fontSize: 16 }}>
                {displayName}
              </Typography.Text>
              <Tag color="gold" style={{ margin: 0, fontSize: 11 }}>
                官方合作分销
              </Tag>
            </div>
            <Typography.Text style={{ color: '#94a3b8', fontSize: 11, display: 'block' }}>
              站点标识：{siteCode} · 主站直营货源保障
            </Typography.Text>
          </div>
        </Space>

        <Space size="middle">
          <Button
            type="text"
            icon={<CustomerServiceOutlined />}
            style={{ color: '#e2e8f0' }}
            onClick={() => setCsModalVisible(true)}
          >
            联系专属客服
          </Button>
          <Link to="/">
            <Button size="small" style={{ background: 'rgba(255,255,255,0.08)', color: '#94a3b8', borderColor: 'rgba(255,255,255,0.15)' }}>
              分销商后台
            </Button>
          </Link>
        </Space>
      </Layout.Header>

      {/* Hero Banner */}
      <div
        style={{
          background: 'linear-gradient(180deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 1) 100%)',
          padding: '36px 24px 24px',
          textAlign: 'center',
          borderBottom: '1px solid rgba(255, 255, 255, 0.05)',
        }}
      >
        <div style={{ maxWidth: 840, margin: '0 auto' }}>
          <Space direction="vertical" size={12}>
            <Tag color="blue" icon={<FireOutlined />} style={{ padding: '2px 10px', fontSize: 12 }}>
              实时同步主站精品号源 · 一键租号
            </Tag>
            <Typography.Title
              level={2}
              style={{
                color: '#fff',
                margin: 0,
                fontWeight: 700,
                letterSpacing: 1,
              }}
            >
              【{displayName}】精选游戏账号商城
            </Typography.Title>
            <Typography.Paragraph style={{ color: '#94a3b8', fontSize: 14, margin: '0 0 12px' }}>
              高阶战备 · 王者段位 · 百万哈夫币 · 极速自动交接 · 押金秒退担保
            </Typography.Paragraph>

            <Space wrap size="large" style={{ justifyContent: 'center', marginTop: 8 }}>
              <div style={{ color: '#cbd5e1', fontSize: 13 }}>
                <ThunderboltOutlined style={{ color: '#38bdf8', marginRight: 6 }} />
                秒级自动交接上号
              </div>
              <div style={{ color: '#cbd5e1', fontSize: 13 }}>
                <SafetyCertificateOutlined style={{ color: '#34d399', marginRight: 6 }} />
                主站资金与资产存管
              </div>
              <div style={{ color: '#cbd5e1', fontSize: 13 }}>
                <CheckCircleOutlined style={{ color: '#fbbf24', marginRight: 6 }} />
                租期结束秒退押金
              </div>
            </Space>
          </Space>
        </div>
      </div>

      {/* 筛选与内容主体 */}
      <Layout.Content style={{ maxWidth: 1280, width: '100%', margin: '0 auto', padding: '24px 20px 60px' }}>
        {/* 筛选栏 */}
        <Card
          style={{
            background: '#1e293b',
            border: '1px solid rgba(255, 255, 255, 0.08)',
            marginBottom: 24,
          }}
          bodyStyle={{ padding: '16px 20px' }}
        >
          <Space direction="vertical" style={{ width: '100%' }} size={14}>
            <div style={{ display: 'flex', justifyContent: 'space-between', flexWrap: 'wrap', gap: 12 }}>
              <Space wrap>
                <Radio.Group
                  value={gameFilter}
                  onChange={(e) => setGameFilter(e.target.value)}
                  buttonStyle="solid"
                >
                  <Radio.Button value="all">全部游戏</Radio.Button>
                  <Radio.Button value="delta_force">三角洲</Radio.Button>
                  <Radio.Button value="honor_of_kings">王者荣耀</Radio.Button>
                </Radio.Group>

                <Radio.Group
                  value={sortOrder}
                  onChange={(e) => setSortOrder(e.target.value)}
                  size="middle"
                >
                  <Radio.Button value="default">默认推荐</Radio.Button>
                  <Radio.Button value="price_asc">租金从低到高</Radio.Button>
                  <Radio.Button value="price_desc">租金从高到低</Radio.Button>
                </Radio.Group>
              </Space>

              <Input
                placeholder="搜索账号标题 / 区服 / 段位"
                prefix={<SearchOutlined style={{ color: '#94a3b8' }} />}
                allowClear
                value={keyword}
                onChange={(e) => setKeyword(e.target.value)}
                style={{ width: 260, background: '#0f172a', borderColor: 'rgba(255,255,255,0.1)', color: '#fff' }}
              />
            </div>
          </Space>
        </Card>

        {/* 列表区域 */}
        {loading ? (
          <div style={{ textAlign: 'center', padding: '80px 0' }}>
            <Spin size="large" tip="正在载入在售商品..." />
          </div>
        ) : filteredItems.length === 0 ? (
          <Card style={{ background: '#1e293b', border: '1px solid rgba(255, 255, 255, 0.08)', padding: '60px 0' }}>
            <Empty
              description={
                <span style={{ color: '#94a3b8' }}>
                  {items.length === 0
                    ? '当前分销站点暂无在售商品。全网新审核通过的商品会自动上架到本站货架。'
                    : '未找到符合条件的账号商品，请更换搜索词重试。'}
                </span>
              }
            />
          </Card>
        ) : (
          <div
            style={{
              display: 'grid',
              gridTemplateColumns: 'repeat(auto-fill, minmax(280px, 1fr))',
              gap: 20,
            }}
          >
            {filteredItems.map((item) => (
              <Card
                key={item.listing_id}
                hoverable
                style={{
                  background: '#1e293b',
                  borderColor: 'rgba(255, 255, 255, 0.08)',
                  borderRadius: 10,
                  overflow: 'hidden',
                  display: 'flex',
                  flexDirection: 'column',
                  transition: 'all 0.25s ease',
                }}
                bodyStyle={{ padding: 16, display: 'flex', flexDirection: 'column', flex: 1 }}
                onClick={() => handleRentNow(item)}
              >
                {/* 卡片头部 */}
                <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: 8 }}>
                  <Typography.Text style={{ color: '#64748b', fontSize: 12 }}>
                    #{item.listing_no}
                  </Typography.Text>
                  {item.in_transaction ? (
                    <Badge status="warning" text={<span style={{ color: '#fbbf24', fontSize: 12 }}>出租中</span>} />
                  ) : (
                    <Badge status="success" text={<span style={{ color: '#34d399', fontSize: 12 }}>可租用</span>} />
                  )}
                </div>

                {/* 账号标题 */}
                <Typography.Paragraph
                  ellipsis={{ rows: 2 }}
                  strong
                  style={{
                    color: '#f8fafc',
                    fontSize: 15,
                    lineHeight: 1.4,
                    minHeight: 42,
                    marginBottom: 10,
                  }}
                >
                  {item.title}
                </Typography.Paragraph>

                {/* 标签属性 */}
                <Space wrap size={4} style={{ marginBottom: 12 }}>
                  <Tag color="blue" style={{ margin: 0 }}>
                    {formatGameName(item.game_name)}
                  </Tag>
                  {item.server_region && (
                    <Tag style={{ margin: 0, background: 'rgba(255,255,255,0.06)', color: '#cbd5e1', border: 'none' }}>
                      {item.server_region}
                    </Tag>
                  )}
                  {item.login_platform && (
                    <Tag style={{ margin: 0, background: 'rgba(255,255,255,0.06)', color: '#cbd5e1', border: 'none' }}>
                      {formatLoginPlatform(item.login_platform)}
                    </Tag>
                  )}
                  {item.rank_level && (
                    <Tag color="purple" style={{ margin: 0 }}>
                      {item.rank_level}
                    </Tag>
                  )}
                </Space>

                {/* 资产特色 */}
                {item.haf_coin_amount > 0 && (
                  <div
                    style={{
                      background: 'rgba(245, 158, 11, 0.1)',
                      border: '1px solid rgba(245, 158, 11, 0.25)',
                      borderRadius: 6,
                      padding: '4px 8px',
                      marginBottom: 12,
                      display: 'flex',
                      alignItems: 'center',
                      gap: 6,
                    }}
                  >
                    <span style={{ fontSize: 12 }}>🪙</span>
                    <Typography.Text style={{ color: '#fbbf24', fontSize: 12 }}>
                      哈夫币：{item.haf_coin_amount.toLocaleString()}
                    </Typography.Text>
                  </div>
                )}

                <div style={{ marginTop: 'auto', paddingTop: 10, borderTop: '1px solid rgba(255,255,255,0.06)' }}>
                  <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'flex-end' }}>
                    <div>
                      <div style={{ color: '#ef4444', fontSize: 18, fontWeight: 700, lineHeight: 1 }}>
                        {formatMoney(item.price_cent)}

                      </div>
                      <div style={{ color: '#64748b', fontSize: 11, marginTop: 4 }}>
                        押金：{formatMoney(item.deposit_amount_cent)}
                      </div>
                    </div>
                    <Button
                      type="primary"
                      size="middle"
                      icon={<RocketOutlined />}
                      disabled={item.in_transaction}
                      style={{
                        background: item.in_transaction ? undefined : 'linear-gradient(135deg, #2563eb, #3b82f6)',
                        border: 'none',
                        borderRadius: 6,
                      }}
                      onClick={(e) => {
                        e.stopPropagation()
                        handleRentNow(item)
                      }}
                    >
                      {item.in_transaction ? '出租中' : '立即租用'}
                    </Button>
                  </div>
                </div>
              </Card>
            ))}
          </div>
        )}
      </Layout.Content>

      {/* 商品详情 & 租号下单弹窗 */}
      <Modal
        title={
          <Space>
            <ShopOutlined style={{ color: '#3b82f6' }} />
            <span>账号租赁详情</span>
          </Space>
        }
        open={Boolean(selectedListing)}
        onCancel={() => setSelectedListing(null)}
        footer={null}
        width={620}
        destroyOnClose
      >
        {selectedListing && (
          <div style={{ paddingTop: 8 }}>
            <Typography.Title level={4} style={{ marginBottom: 8 }}>
              {selectedListing.title}
            </Typography.Title>
            <Typography.Text type="secondary" style={{ fontSize: 12, display: 'block', marginBottom: 16 }}>
              商品唯一编号：{selectedListing.listing_no} · 所属分销商：{selectedListing.site_name}
            </Typography.Text>

            <Descriptions column={2} bordered size="small">
              <Descriptions.Item label="所属游戏">
                {formatGameName(selectedListing.game_name)}
              </Descriptions.Item>
              <Descriptions.Item label="游戏大区">{selectedListing.server_region || '全区通用'}</Descriptions.Item>
              <Descriptions.Item label="登录平台">{formatLoginPlatform(selectedListing.login_platform) || 'PC端'}</Descriptions.Item>
              <Descriptions.Item label="段位天梯">{selectedListing.rank_level || '暂未定级'}</Descriptions.Item>
              <Descriptions.Item label="哈夫币资产">
                {selectedListing.haf_coin_amount > 0
                  ? `${selectedListing.haf_coin_amount.toLocaleString()} 币`
                  : '无'}
              </Descriptions.Item>
              <Descriptions.Item label="交接模式">自动快速交接</Descriptions.Item>
              <Descriptions.Item label="租金标准">
                <span style={{ color: '#cf1322', fontWeight: 700, fontSize: 16 }}>
                  {formatMoney(selectedListing.price_cent)}
                </span>{' '}
                / 小时
              </Descriptions.Item>
              <Descriptions.Item label="安全押金">
                <span style={{ fontWeight: 600 }}>{formatMoney(selectedListing.deposit_amount_cent)}</span>
              </Descriptions.Item>
            </Descriptions>

            <Divider style={{ margin: '16px 0' }} />

            <div
              style={{
                background: '#f8fafc',
                padding: '12px 16px',
                borderRadius: 8,
                border: '1px solid #e2e8f0',
                marginBottom: 20,
              }}
            >
              <Typography.Text strong style={{ display: 'block', marginBottom: 6, color: '#334155' }}>
                <SafetyCertificateOutlined style={{ color: '#16a34a', marginRight: 6 }} />
                租号官方保障须知
              </Typography.Text>
              <ul style={{ paddingLeft: 18, margin: 0, fontSize: 12, color: '#64748b', lineHeight: 1.8 }}>
                <li>本账号经平台安全审核，支持密码自动交接或专属上号器直连。</li>
                <li>严禁在游戏内使用任何作弊辅助、脚本外挂，违规将扣除全部押金并封停账户。</li>
                <li>租期结束并安全下线后，系统将自动结算并全额退还押金。</li>
              </ul>
            </div>

            <div style={{ display: 'flex', gap: 12 }}>
              <Button
                icon={<CopyOutlined />}
                onClick={() => handleCopyListingNo(selectedListing.listing_no)}
                style={{ flex: 1 }}
              >
                复制商品编号
              </Button>
              <Button
                type="primary"
                icon={<RightCircleOutlined />}
                onClick={() => openMainCheckout(selectedListing)}
                style={{ flex: 2, background: 'linear-gradient(135deg, #2563eb, #3b82f6)', border: 'none' }}
              >
                前往主站极速上号
              </Button>
            </div>
          </div>
        )}
      </Modal>

      {/* 专属客服弹窗 */}
      <Modal
        title="联系分销站点专属客服"
        open={csModalVisible}
        onCancel={() => setCsModalVisible(false)}
        footer={[
          <Button key="ok" type="primary" onClick={() => setCsModalVisible(false)}>
            我知道了
          </Button>,
        ]}
      >
        <div style={{ textAlign: 'center', padding: '16px 0' }}>
          <CustomerServiceOutlined style={{ fontSize: 48, color: '#3b82f6', marginBottom: 16 }} />
          <Typography.Title level={4} style={{ margin: '0 0 8px' }}>
            【{displayName}】专属客服通道
          </Typography.Title>
          <Typography.Paragraph type="secondary" style={{ fontSize: 13, marginBottom: 16 }}>
            如有换号、上号异常、咨询租号或批量合作需求，请联系本站值班客服。
          </Typography.Paragraph>
          <div style={{ background: '#f1f5f9', padding: '12px', borderRadius: 8 }}>
            <Typography.Text strong>分销站点标识：</Typography.Text>
            <Tag color="blue">{siteCode}</Tag>
            <div style={{ marginTop: 8, fontSize: 12, color: '#64748b' }}>
              主站 7x24 小时技术保障支持
            </div>
          </div>
        </div>
      </Modal>
    </Layout>
  )
}