'use client'

import { useState } from 'react'
import { Plus, FileText, Upload, Trash2, Edit } from 'lucide-react'
import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/Card'
import { Button } from '@/components/ui/Button'
import { Input } from '@/components/ui/Input'
import { Modal } from '@/components/ui/Modal'
import { SuccessTag, PendingTag } from '@/components/ui/Tag'

// 模拟 Brief 列表
const mockBriefs = [
  {
    id: 'brief-001',
    name: '2024 夏日护肤活动',
    description: '夏日护肤系列产品推广规范',
    status: 'active',
    rulesCount: 12,
    creatorsCount: 45,
    createdAt: '2024-01-15',
    updatedAt: '2024-02-01',
  },
  {
    id: 'brief-002',
    name: '新品口红上市',
    description: '春季新品口红营销 Brief',
    status: 'active',
    rulesCount: 8,
    creatorsCount: 32,
    createdAt: '2024-02-01',
    updatedAt: '2024-02-03',
  },
  {
    id: 'brief-003',
    name: '年货节活动',
    description: '春节年货促销活动规范',
    status: 'archived',
    rulesCount: 15,
    creatorsCount: 78,
    createdAt: '2024-01-01',
    updatedAt: '2024-01-20',
  },
]

export default function BriefsPage() {
  const [briefs] = useState(mockBriefs)
  const [showCreateModal, setShowCreateModal] = useState(false)
  const [searchQuery, setSearchQuery] = useState('')

  const filteredBriefs = briefs.filter((brief) =>
    brief.name.toLowerCase().includes(searchQuery.toLowerCase())
  )

  return (
    <div className="space-y-6">
      <div className="flex items-center justify-between">
        <h1 className="text-2xl font-bold text-gray-900">Brief 管理</h1>
        <Button icon={Plus} onClick={() => setShowCreateModal(true)}>
          新建 Brief
        </Button>
      </div>

      {/* 搜索 */}
      <div className="max-w-md">
        <Input
          placeholder="搜索 Brief..."
          value={searchQuery}
          onChange={(e) => setSearchQuery(e.target.value)}
        />
      </div>

      {/* Brief 列表 */}
      <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
        {filteredBriefs.map((brief) => (
          <Card key={brief.id} className="hover:shadow-md transition-shadow">
            <CardContent className="p-5">
              <div className="flex items-start justify-between mb-3">
                <div className="p-2 bg-blue-50 rounded-lg">
                  <FileText size={24} className="text-blue-600" />
                </div>
                {brief.status === 'active' ? (
                  <SuccessTag>使用中</SuccessTag>
                ) : (
                  <PendingTag>已归档</PendingTag>
                )}
              </div>

              <h3 className="font-semibold text-gray-900 mb-1">{brief.name}</h3>
              <p className="text-sm text-gray-500 mb-4">{brief.description}</p>

              <div className="flex gap-4 text-sm text-gray-500 mb-4">
                <span>{brief.rulesCount} 条规则</span>
                <span>{brief.creatorsCount} 位达人</span>
              </div>

              <div className="flex items-center justify-between pt-3 border-t">
                <span className="text-xs text-gray-400">
                  更新于 {brief.updatedAt}
                </span>
                <div className="flex gap-2">
                  <button type="button" className="p-1 hover:bg-gray-100 rounded">
                    <Edit size={16} className="text-gray-500" />
                  </button>
                  <button type="button" className="p-1 hover:bg-gray-100 rounded">
                    <Trash2 size={16} className="text-gray-500" />
                  </button>
                </div>
              </div>
            </CardContent>
          </Card>
        ))}

        {/* 新建卡片 */}
        <Card
          className="border-dashed cursor-pointer hover:border-blue-400 hover:bg-blue-50/50 transition-colors"
          onClick={() => setShowCreateModal(true)}
        >
          <CardContent className="p-5 flex flex-col items-center justify-center h-full min-h-[200px]">
            <div className="p-3 bg-gray-100 rounded-full mb-3">
              <Plus size={24} className="text-gray-500" />
            </div>
            <span className="text-gray-500">新建 Brief</span>
          </CardContent>
        </Card>
      </div>

      {/* 新建 Brief 弹窗 */}
      <Modal
        isOpen={showCreateModal}
        onClose={() => setShowCreateModal(false)}
        title="新建 Brief"
        size="md"
      >
        <div className="space-y-4">
          <Input label="Brief 名称" placeholder="输入 Brief 名称" />
          <div>
            <label className="block text-sm font-medium text-gray-700 mb-1">描述</label>
            <textarea
              className="w-full h-20 p-3 border rounded-lg resize-none focus:outline-none focus:ring-2 focus:ring-blue-500"
              placeholder="输入 Brief 描述..."
            />
          </div>

          {/* 上传 PDF */}
          <div>
            <label className="block text-sm font-medium text-gray-700 mb-2">
              上传 Brief 文档（可选）
            </label>
            <div className="border-2 border-dashed rounded-lg p-6 text-center hover:border-blue-400 transition-colors cursor-pointer">
              <Upload size={32} className="mx-auto text-gray-400 mb-2" />
              <p className="text-sm text-gray-600">点击或拖拽上传 PDF 文件</p>
              <p className="text-xs text-gray-400 mt-1">AI 将自动提取规则</p>
            </div>
          </div>

          <div className="flex gap-3 justify-end pt-4">
            <Button variant="ghost" onClick={() => setShowCreateModal(false)}>
              取消
            </Button>
            <Button onClick={() => setShowCreateModal(false)}>
              创建
            </Button>
          </div>
        </div>
      </Modal>
    </div>
  )
}
