'use client'

import { useState } from 'react'
import { useRouter } from 'next/navigation'
import { ArrowLeft, Check, X, CheckSquare, Video, Clock } from 'lucide-react'
import { cn } from '@/lib/utils'
import { getPlatformInfo } from '@/lib/platforms'
import { useToast } from '@/components/ui/Toast'

// 模拟待审核内容列表
const mockReviewItems = [
  {
    id: 'review-001',
    title: '春季护肤新品体验分享',
    creator: '小美',
    agency: '代理商A',
    platform: 'douyin',
    reviewer: '张三',
    reviewTime: '2小时前',
    agencyOpinion: '内容符合Brief要求，卖点覆盖完整，建议通过。',
    agencyStatus: 'passed',
    aiScore: 12,
    aiChecks: [
      { label: '合规检测', status: 'passed', description: '未检测到违禁词、竞品Logo等违规内容' },
      { label: '卖点覆盖', status: 'passed', description: '核心卖点覆盖率 95%' },
      { label: '品牌调性', status: 'passed', description: '视觉风格符合品牌调性' },
    ],
    currentStep: 4, // 1-已提交, 2-AI审核, 3-代理商审核, 4-品牌终审
  },
  {
    id: 'review-002',
    title: '夏日清爽护肤推荐',
    creator: '小红',
    agency: '代理商B',
    platform: 'xiaohongshu',
    reviewer: '李四',
    reviewTime: '5小时前',
    agencyOpinion: '内容质量良好，但部分镜头略暗，建议后期调整后通过。',
    agencyStatus: 'passed',
    aiScore: 28,
    aiChecks: [
      { label: '合规检测', status: 'passed', description: '未检测到违规内容' },
      { label: '卖点覆盖', status: 'warning', description: '核心卖点覆盖率 78%，建议增加产品特写' },
      { label: '品牌调性', status: 'passed', description: '视觉风格符合品牌调性' },
    ],
    currentStep: 4,
  },
]

// 审核流程进度组件
function ReviewProgressBar({ currentStep }: { currentStep: number }) {
  const steps = [
    { label: '已提交', step: 1 },
    { label: 'AI审核', step: 2 },
    { label: '代理商审核', step: 3 },
    { label: '品牌终审', step: 4 },
  ]

  return (
    <div className="flex items-center w-full">
      {steps.map((s, index) => {
        const isCompleted = s.step < currentStep
        const isCurrent = s.step === currentStep

        return (
          <div key={s.step} className="flex items-center flex-1">
            <div className="flex flex-col items-center gap-1">
              <div className={cn(
                'flex items-center justify-center rounded-[10px]',
                isCurrent ? 'w-6 h-6 bg-accent-indigo' :
                isCompleted ? 'w-5 h-5 bg-accent-green' :
                'w-5 h-5 bg-bg-elevated border border-border-subtle'
              )}>
                {isCompleted && <Check className="w-3 h-3 text-white" />}
                {isCurrent && <Clock className="w-3 h-3 text-white" />}
              </div>
              <span className={cn(
                'text-[10px]',
                isCurrent ? 'text-accent-indigo font-semibold' :
                isCompleted ? 'text-text-secondary' :
                'text-text-tertiary'
              )}>
                {s.label}
              </span>
            </div>
            {index < steps.length - 1 && (
              <div className={cn(
                'h-0.5 flex-1 rounded',
                s.step < currentStep ? 'bg-accent-green' :
                s.step === currentStep ? 'bg-accent-indigo' :
                'bg-border-subtle'
              )} />
            )}
          </div>
        )
      })}
    </div>
  )
}

export default function FinalReviewPage() {
  const router = useRouter()
  const toast = useToast()
  const [selectedItem, setSelectedItem] = useState(mockReviewItems[0])
  const [feedback, setFeedback] = useState('')
  const [isSubmitting, setIsSubmitting] = useState(false)
  const platform = getPlatformInfo(selectedItem.platform)

  const handleApprove = async () => {
    setIsSubmitting(true)
    // 模拟提交
    await new Promise(resolve => setTimeout(resolve, 1000))
    toast.success('已通过审核')
    setIsSubmitting(false)
  }

  const handleReject = async () => {
    if (!feedback.trim()) {
      toast.error('请填写驳回原因')
      return
    }
    setIsSubmitting(true)
    // 模拟提交
    await new Promise(resolve => setTimeout(resolve, 1000))
    toast.success('已驳回')
    setIsSubmitting(false)
    setFeedback('')
  }

  return (
    <div className="flex flex-col gap-6 h-full min-h-0">
      {/* 顶部栏 */}
      <div className="flex items-center justify-between">
        <div className="flex flex-col gap-1">
          <div className="flex items-center gap-3">
            <h1 className="text-2xl font-bold text-text-primary">终审台</h1>
            {platform && (
              <span className={`inline-flex items-center gap-1.5 px-3 py-1 rounded-lg text-sm font-medium ${platform.bgColor} ${platform.textColor} border ${platform.borderColor}`}>
                <span>{platform.icon}</span>
                {platform.name}
              </span>
            )}
          </div>
          <p className="text-sm text-text-secondary">
            {selectedItem.title} · 达人: {selectedItem.creator}
          </p>
        </div>
        <button
          type="button"
          onClick={() => router.back()}
          className="flex items-center gap-2 px-4 py-2 rounded-lg bg-bg-elevated text-text-secondary text-sm font-medium"
        >
          <ArrowLeft className="w-4 h-4" />
          返回列表
        </button>
      </div>

      {/* 审核流程进度 */}
      <div className="bg-bg-card rounded-2xl p-5 card-shadow">
        <div className="flex items-center justify-between mb-3">
          <span className="text-sm font-semibold text-text-primary">审核流程</span>
          <span className="text-xs text-accent-indigo font-medium">当前：品牌终审</span>
        </div>
        <ReviewProgressBar currentStep={selectedItem.currentStep} />
      </div>

      {/* 主内容区 - 两栏布局 */}
      <div className="flex gap-6 flex-1 min-h-0">
        {/* 左侧 - 视频播放器 */}
        <div className="flex-1 flex flex-col gap-4">
          <div className="flex-1 bg-bg-card rounded-2xl card-shadow flex items-center justify-center">
            <div className="w-[640px] h-[360px] rounded-xl bg-black flex items-center justify-center">
              <div className="flex flex-col items-center gap-4">
                <div className="w-20 h-20 rounded-full bg-[#1A1A1E] flex items-center justify-center">
                  <Video className="w-10 h-10 text-text-tertiary" />
                </div>
                <p className="text-sm text-text-tertiary">视频播放器</p>
              </div>
            </div>
          </div>
        </div>

        {/* 右侧 - 分析面板 */}
        <div className="w-[380px] flex flex-col gap-4 overflow-y-auto overflow-x-hidden">
          {/* 代理商初审意见 */}
          <div className="bg-bg-card rounded-2xl p-5 card-shadow">
            <div className="flex items-center justify-between mb-3">
              <span className="text-base font-semibold text-text-primary">代理商初审意见</span>
              <span className={cn(
                'px-3 py-1.5 rounded-lg text-[13px] font-semibold',
                selectedItem.agencyStatus === 'passed' ? 'bg-accent-green/15 text-accent-green' : 'bg-accent-coral/15 text-accent-coral'
              )}>
                {selectedItem.agencyStatus === 'passed' ? '已通过' : '需修改'}
              </span>
            </div>
            <div className="bg-bg-elevated rounded-[10px] p-3 flex flex-col gap-2">
              <span className="text-xs text-text-tertiary">
                审核人：{selectedItem.agency} - {selectedItem.reviewer} · {selectedItem.reviewTime}
              </span>
              <p className="text-[13px] text-text-secondary">{selectedItem.agencyOpinion}</p>
            </div>
          </div>

          {/* AI 分析结果 */}
          <div className="bg-bg-card rounded-2xl p-5 card-shadow">
            <div className="flex items-center justify-between mb-4">
              <span className="text-base font-semibold text-text-primary">AI 分析结果</span>
              <span className={cn(
                'px-3 py-1.5 rounded-lg text-[13px] font-semibold',
                selectedItem.aiScore < 30 ? 'bg-accent-green/15 text-accent-green' : 'bg-accent-amber/15 text-accent-amber'
              )}>
                风险评分: {selectedItem.aiScore}
              </span>
            </div>
            <div className="flex flex-col gap-3">
              {selectedItem.aiChecks.map((check, index) => (
                <div key={index} className="bg-bg-elevated rounded-[10px] p-3 flex flex-col gap-2">
                  <div className="flex items-center gap-2">
                    <CheckSquare className={cn(
                      'w-4 h-4',
                      check.status === 'passed' ? 'text-accent-green' : 'text-accent-amber'
                    )} />
                    <span className={cn(
                      'text-sm font-semibold',
                      check.status === 'passed' ? 'text-accent-green' : 'text-accent-amber'
                    )}>
                      {check.label} · {check.status === 'passed' ? '通过' : '警告'}
                    </span>
                  </div>
                  <p className="text-[13px] text-text-secondary">{check.description}</p>
                </div>
              ))}
            </div>
          </div>

          {/* 终审决策 */}
          <div className="bg-bg-card rounded-2xl p-5 card-shadow">
            <h3 className="text-base font-semibold text-text-primary mb-4">终审决策</h3>

            {/* 决策按钮 */}
            <div className="flex gap-3 mb-4">
              <button
                type="button"
                onClick={handleApprove}
                disabled={isSubmitting}
                className="flex-1 flex items-center justify-center gap-2 py-3.5 rounded-xl bg-accent-green text-white font-semibold disabled:opacity-50"
              >
                <Check className="w-[18px] h-[18px]" />
                通过
              </button>
              <button
                type="button"
                onClick={handleReject}
                disabled={isSubmitting}
                className="flex-1 flex items-center justify-center gap-2 py-3.5 rounded-xl bg-accent-coral text-white font-semibold disabled:opacity-50"
              >
                <X className="w-[18px] h-[18px]" />
                驳回
              </button>
            </div>

            {/* 终审意见 */}
            <div className="flex flex-col gap-2">
              <label className="text-[13px] font-medium text-text-secondary">
                终审意见（可选）
              </label>
              <textarea
                value={feedback}
                onChange={(e) => setFeedback(e.target.value)}
                placeholder="输入终审意见或修改建议..."
                className="w-full h-20 p-3.5 rounded-xl bg-bg-elevated border border-border-subtle text-sm text-text-primary placeholder-text-tertiary resize-none focus:outline-none focus:ring-2 focus:ring-accent-indigo"
              />
            </div>
          </div>
        </div>
      </div>
    </div>
  )
}