"use client"

import { useState, useEffect } from 'react'
import { Card } from '@/components/ui/card'
import { Button } from '@/components/ui/button'
import { Badge } from '@/components/ui/badge'
import { Sidebar } from '@/components/dashboard/sidebar'
import { useSidebar } from '@/hooks/useSidebar'
import { StatsCard } from '@/components/supplies/ui/stats-card'
import { StatsGrid } from '@/components/supplies/ui/stats-grid'
import {
  Package,
  TrendingUp,
  AlertTriangle,
  RotateCcw,
  Wrench,
  Users,
  ShoppingBag,
  ChevronDown,
  ChevronUp,
  Box,
  Zap,
  Target,
  Activity,
  BarChart3,
  Eye,
  EyeOff,
  Warehouse
} from 'lucide-react'

export function FulfillmentWarehouseDashboard() {
  const { getSidebarMargin } = useSidebar()
  
  // Состояния для свёртывания блоков
  const [expandedSections, setExpandedSections] = useState({
    warehouse: true
  })

  // Состояние для живых изменений продуктов
  const [liveChange, setLiveChange] = useState({ 
    value: 12, 
    isPositive: true,
    timestamp: Date.now()
  })

  // Состояние для модуля товары с дополнительными значениями
  const [goodsData, setGoodsData] = useState({
    processing: 245,  // В обработке (положительное)
    rejected: 18,     // Отклонено (отрицательное)
    efficiency: 87,   // Эффективность обработки
    isActive: true,   // Активность процесса
    pulse: 0          // Для анимации пульса
  })

  // Симуляция живых изменений для продуктов
  useEffect(() => {
    const interval = setInterval(() => {
      const change = Math.floor(Math.random() * 20) - 10 // от -10 до +10
      setLiveChange({
        value: Math.abs(change),
        isPositive: change >= 0,
        timestamp: Date.now()
      })
    }, 3000) // каждые 3 секунды

    return () => clearInterval(interval)
  }, [])

  // Симуляция изменений для товаров
  useEffect(() => {
    const interval = setInterval(() => {
      setGoodsData(prev => ({
        ...prev,
        processing: prev.processing + Math.floor(Math.random() * 10) - 5,
        rejected: Math.max(0, prev.rejected + Math.floor(Math.random() * 6) - 3),
        efficiency: Math.min(100, Math.max(70, prev.efficiency + Math.floor(Math.random() * 6) - 3)),
        pulse: prev.pulse + 1
      }))
    }, 2500) // каждые 2.5 секунды

    return () => clearInterval(interval)
  }, [])

  // Мок данные для статистики склада фулфилмента
  const warehouseStats = {
    // Текущие данные
    currentProducts: 856,  // Готовые продукты
    currentGoods: 391,     // Товары в процессе
    currentDefects: 23,
    currentReturns: 156,
    currentFulfillmentSupplies: 89,
    currentSellerSupplies: 234,
    

    
    // Тренды (в процентах)
    productsTrend: 12,
    goodsTrend: 8,
    defectsTrend: -5,
    returnsTrend: 8,
    suppliesTrend: 15,
    
    // Дополнительная аналитика
    efficiency: 94.5,
    turnover: 2.3,
    utilizationRate: 87
  }

  const formatNumber = (num: number) => {
    return num.toLocaleString('ru-RU')
  }

  const toggleSection = (section: keyof typeof expandedSections) => {
    setExpandedSections(prev => ({
      ...prev,
      [section]: !prev[section]
    }))
  }

  // Компонент заголовка секции с кнопкой свёртывания
  const SectionHeader = ({ title, section, badge, color = "text-white" }: {
    title: string
    section: keyof typeof expandedSections
    badge?: number
    color?: string
  }) => (
    <div className="flex items-center justify-between mb-4">
      <div className="flex items-center space-x-3">
        <h2 className={`text-lg font-semibold ${color}`}>{title}</h2>
        {badge && (
          <span className="px-2 py-1 bg-blue-500/20 text-blue-300 text-xs rounded-full font-medium">
            {badge}
          </span>
        )}
      </div>
      <Button
        variant="ghost"
        size="sm"
        onClick={() => toggleSection(section)}
        className="text-white/60 hover:text-white hover:bg-white/10 p-1 h-8 w-8"
      >
        {expandedSections[section] ? (
          <ChevronUp className="h-4 w-4" />
        ) : (
          <ChevronDown className="h-4 w-4" />
        )}
      </Button>
    </div>
  )

  return (
    <div className="h-screen flex overflow-hidden">
      <Sidebar />
      <main className={`flex-1 ${getSidebarMargin()} px-6 py-4 overflow-y-auto transition-all duration-300`}>
        <div className="w-full">
                    {/* Объединенный блок склада - ПЕРВЫЙ СВЕРХУ */}
          <div className="mb-6">
            <SectionHeader 
              title="Состояние склада" 
              section="warehouse" 
              badge={warehouseStats.currentProducts + warehouseStats.currentGoods + warehouseStats.currentFulfillmentSupplies + warehouseStats.currentSellerSupplies}
              color="text-blue-400"
            />
            {expandedSections.warehouse && (
              <div className="grid grid-cols-6 gap-4">
                {/* Уникальный модуль "Продукты" */}
                <div className="min-w-0 relative group">
                  <div className="bg-gradient-to-br from-blue-500/10 via-blue-400/5 to-cyan-500/10 backdrop-blur border border-blue-400/30 rounded-2xl p-4 hover:from-blue-500/20 hover:to-cyan-500/20 transition-all duration-500 hover:scale-[1.02] hover:shadow-2xl hover:shadow-blue-500/20">
                    {/* Живой индикатор изменений */}
                    <div className="absolute -top-1 -right-1 flex items-center space-x-1">
                      <div className="relative">
                        <div className={`w-3 h-3 rounded-full animate-pulse shadow-lg ${
                          liveChange.isPositive 
                            ? 'bg-green-500 shadow-green-500/50' 
                            : 'bg-red-500 shadow-red-500/50'
                        }`}></div>
                        <div className={`absolute inset-0 w-3 h-3 rounded-full animate-ping opacity-75 ${
                          liveChange.isPositive ? 'bg-green-500' : 'bg-red-500'
                        }`}></div>
                      </div>
                      <div className={`backdrop-blur text-white text-[10px] font-bold px-2 py-0.5 rounded-full animate-bounce ${
                        liveChange.isPositive 
                          ? 'bg-green-500/90' 
                          : 'bg-red-500/90'
                      }`}>
                        {liveChange.isPositive ? '+' : '-'}{liveChange.value}
                      </div>
                    </div>

                    {/* Заголовок с иконкой */}
                    <div className="flex items-center justify-between mb-3">
                      <div className="flex items-center space-x-2">
                        <div className="relative">
                          <div className="p-2 bg-blue-500/20 rounded-xl border border-blue-400/30">
                            <Box className="h-4 w-4 text-blue-400" />
                          </div>
                          <div className={`absolute -top-1 -right-1 w-2 h-2 rounded-full animate-pulse ${
                            liveChange.isPositive ? 'bg-green-400' : 'bg-red-400'
                          }`}></div>
                        </div>
                        <span className="text-blue-100 text-sm font-semibold tracking-wide">ПРОДУКТЫ</span>
                      </div>
                      
                      {/* Мини-график тренда */}
                      <div className="flex items-center space-x-1">
                        <div className="flex items-end space-x-0.5 h-4">
                          <div className={`w-1 rounded-full ${liveChange.isPositive ? 'bg-green-400/60' : 'bg-red-400/60'}`} style={{height: '60%'}}></div>
                          <div className={`w-1 rounded-full ${liveChange.isPositive ? 'bg-green-400/70' : 'bg-red-400/70'}`} style={{height: '80%'}}></div>
                          <div className={`w-1 rounded-full ${liveChange.isPositive ? 'bg-green-400/80' : 'bg-red-400/80'}`} style={{height: '70%'}}></div>
                          <div className={`w-1 rounded-full animate-pulse ${liveChange.isPositive ? 'bg-green-400' : 'bg-red-400'}`} style={{height: '100%'}}></div>
                        </div>
                      </div>
                    </div>

                    {/* Основное значение */}
                    <div className="mb-2">
                      <div className="flex items-baseline space-x-2">
                        <span className="text-2xl font-black text-white tracking-tight">
                          {formatNumber(warehouseStats.currentProducts)}
                        </span>
                        <div className={`flex items-center space-x-1 px-2 py-1 rounded-full ${
                          liveChange.isPositive ? 'bg-green-500/20' : 'bg-red-500/20'
                        }`}>
                          <svg className={`w-3 h-3 ${liveChange.isPositive ? 'text-green-400' : 'text-red-400'}`} fill="currentColor" viewBox="0 0 20 20">
                            <path fillRule="evenodd" d={liveChange.isPositive 
                              ? "M5.293 7.707a1 1 0 010-1.414l4-4a1 1 0 011.414 0l4 4a1 1 0 01-1.414 1.414L11 5.414V17a1 1 0 11-2 0V5.414L6.707 7.707a1 1 0 01-1.414 0z" 
                              : "M14.707 12.293a1 1 0 010 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 111.414-1.414L9 14.586V3a1 1 0 012 0v11.586l2.293-2.293a1 1 0 011.414 0z"
                            } clipRule="evenodd" />
                          </svg>
                          <span className={`text-xs font-bold ${liveChange.isPositive ? 'text-green-400' : 'text-red-400'}`}>
                            {liveChange.value}%
                          </span>
                        </div>
                      </div>
                    </div>

                    {/* Подпись */}
                    <div className="text-blue-200/70 text-xs">
                      Готовые к отправке
                    </div>

                    {/* Прогресс-бар */}
                    <div className="mt-3 relative">
                      <div className="h-1.5 bg-blue-900/30 rounded-full overflow-hidden">
                        <div 
                          className="h-full bg-gradient-to-r from-blue-400 to-cyan-400 rounded-full transition-all duration-1000 ease-out relative"
                          style={{width: '78%'}}
                        >
                          <div className="absolute right-0 top-0 h-full w-4 bg-gradient-to-r from-transparent to-white/30 animate-pulse"></div>
                        </div>
                      </div>
                      <div className="flex justify-between text-[10px] text-blue-300/60 mt-1">
                        <span>0</span>
                        <span>1.2К</span>
                      </div>
                    </div>

                    {/* Живое изменение значения */}
                    <div className="absolute bottom-2 left-2 opacity-0 group-hover:opacity-100 transition-opacity duration-300">
                      <div className={`flex items-center space-x-1 backdrop-blur px-2 py-1 rounded-lg ${
                        liveChange.isPositive ? 'bg-green-500/90' : 'bg-red-500/90'
                      }`}>
                        <div className="w-2 h-2 bg-white rounded-full animate-pulse"></div>
                        <span className="text-white text-[10px] font-bold">
                          LIVE {liveChange.isPositive ? '+' : '-'}{liveChange.value}
                        </span>
                      </div>
                    </div>

                    {/* Декоративные элементы */}
                    <div className="absolute top-1 left-1 w-8 h-8 bg-gradient-to-br from-blue-400/10 to-transparent rounded-full"></div>
                    <div className="absolute bottom-1 right-1 w-6 h-6 bg-gradient-to-tl from-cyan-400/10 to-transparent rounded-full"></div>
                  </div>
                </div>

                {/* Уникальный модуль "Товары" */}
                <div className="min-w-0 relative group">
                  <div className="bg-gradient-to-br from-cyan-500/10 via-teal-400/5 to-emerald-500/10 backdrop-blur border border-cyan-400/30 rounded-2xl p-4 hover:from-cyan-500/20 hover:to-emerald-500/20 transition-all duration-700 hover:scale-[1.03] hover:shadow-2xl hover:shadow-cyan-500/20 relative overflow-hidden">
                    
                    {/* Анимированный фон */}
                    <div className="absolute inset-0 opacity-10">
                      <div className={`absolute top-0 left-0 w-full h-1 bg-gradient-to-r from-transparent via-cyan-400 to-transparent transform transition-transform duration-2000 ${
                        goodsData.pulse % 2 === 0 ? 'translate-x-full' : '-translate-x-full'
                      }`}></div>
                    </div>

                    {/* Статус активности */}
                    <div className="absolute -top-1 -left-1 flex items-center space-x-1">
                      <div className="relative">
                        <div className="w-4 h-4 bg-cyan-500 rounded-full animate-spin shadow-lg shadow-cyan-500/50" style={{
                          animation: 'spin 2s linear infinite'
                        }}></div>
                        <div className="absolute inset-1 w-2 h-2 bg-white rounded-full"></div>
                      </div>
                      <div className="bg-cyan-500/90 backdrop-blur text-white text-[9px] font-bold px-2 py-0.5 rounded-full">
                        ACTIVE
                      </div>
                    </div>

                    {/* Заголовок с двойной иконкой */}
                    <div className="flex items-center justify-between mb-3">
                      <div className="flex items-center space-x-2">
                        <div className="relative">
                          <div className="p-2 bg-cyan-500/20 rounded-xl border border-cyan-400/30 relative">
                            <Package className="h-4 w-4 text-cyan-400" />
                            {/* Мини-индикатор обработки */}
                            <div className="absolute -bottom-1 -right-1 w-3 h-3 bg-gradient-to-br from-green-400 to-emerald-500 rounded-full flex items-center justify-center">
                              <div className="w-1 h-1 bg-white rounded-full animate-pulse"></div>
                            </div>
                          </div>
                        </div>
                        <span className="text-cyan-100 text-sm font-semibold tracking-wide">ТОВАРЫ</span>
                      </div>
                      
                      {/* Круговой прогресс эффективности */}
                      <div className="relative w-8 h-8">
                        <svg className="w-8 h-8 transform -rotate-90" viewBox="0 0 32 32">
                          <circle cx="16" cy="16" r="14" stroke="currentColor" strokeWidth="2" fill="none" className="text-cyan-900/30" />
                          <circle 
                            cx="16" cy="16" r="14" 
                            stroke="currentColor" 
                            strokeWidth="2" 
                            fill="none" 
                            strokeDasharray={`${goodsData.efficiency * 0.88} 88`}
                            className="text-cyan-400 transition-all duration-1000"
                          />
                        </svg>
                        <div className="absolute inset-0 flex items-center justify-center">
                          <span className="text-[8px] font-bold text-cyan-300">{goodsData.efficiency}%</span>
                        </div>
                      </div>
                    </div>

                    {/* Основное значение */}
                    <div className="mb-3">
                      <div className="flex items-baseline space-x-2">
                        <span className="text-2xl font-black text-white tracking-tight">
                          {formatNumber(warehouseStats.currentGoods)}
                        </span>
                        <div className="flex items-center space-x-1 bg-cyan-500/20 px-2 py-1 rounded-full">
                          <div className="w-2 h-2 bg-cyan-400 rounded-full animate-bounce"></div>
                          <span className="text-cyan-400 text-xs font-bold">
                            LIVE
                          </span>
                        </div>
                      </div>
                    </div>

                    {/* Дополнительные значения */}
                    <div className="grid grid-cols-2 gap-2 mb-3">
                      {/* Положительное значение */}
                      <div className="bg-green-500/10 border border-green-400/30 rounded-lg p-2">
                        <div className="flex items-center space-x-1 mb-1">
                          <div className="w-2 h-2 bg-green-400 rounded-full animate-pulse"></div>
                          <span className="text-green-400 text-[10px] font-semibold">ОБРАБОТКА</span>
                        </div>
                        <div className="text-green-300 text-sm font-bold">
                          +{formatNumber(goodsData.processing)}
                        </div>
                      </div>

                      {/* Отрицательное значение */}
                      <div className="bg-red-500/10 border border-red-400/30 rounded-lg p-2">
                        <div className="flex items-center space-x-1 mb-1">
                          <div className="w-2 h-2 bg-red-400 rounded-full animate-pulse"></div>
                          <span className="text-red-400 text-[10px] font-semibold">ОТКЛОНЕНО</span>
                        </div>
                        <div className="text-red-300 text-sm font-bold">
                          -{formatNumber(goodsData.rejected)}
                        </div>
                      </div>
                    </div>

                    {/* Подпись */}
                    <div className="text-cyan-200/70 text-xs mb-2">
                      В обработке
                    </div>

                    {/* Волновой прогресс */}
                    <div className="relative h-2 bg-cyan-900/30 rounded-full overflow-hidden">
                      <div className="absolute inset-0 bg-gradient-to-r from-cyan-400 to-emerald-400 rounded-full" style={{
                        width: `${(goodsData.processing / (goodsData.processing + goodsData.rejected)) * 100}%`
                      }}></div>
                      {/* Волновая анимация */}
                      <div className="absolute inset-0 opacity-50">
                        <div className={`h-full w-full bg-gradient-to-r from-transparent via-white/30 to-transparent transform transition-transform duration-2000 ${
                          goodsData.pulse % 3 === 0 ? 'translate-x-full' : goodsData.pulse % 3 === 1 ? 'translate-x-0' : '-translate-x-full'
                        }`}></div>
                      </div>
                    </div>

                    {/* Hover эффект с детальной информацией */}
                    <div className="absolute inset-0 bg-gradient-to-br from-cyan-500/20 to-emerald-500/20 rounded-2xl opacity-0 group-hover:opacity-100 transition-opacity duration-300 flex items-center justify-center">
                      <div className="text-center">
                        <div className="text-white text-xs font-bold mb-1">ДЕТАЛИ</div>
                        <div className="flex space-x-4 text-[10px]">
                          <div className="text-green-300">
                            <div className="font-bold">+{goodsData.processing}</div>
                            <div className="opacity-70">Активных</div>
                          </div>
                          <div className="text-red-300">
                            <div className="font-bold">-{goodsData.rejected}</div>
                            <div className="opacity-70">Проблем</div>
                          </div>
                          <div className="text-cyan-300">
                            <div className="font-bold">{goodsData.efficiency}%</div>
                            <div className="opacity-70">Успех</div>
                          </div>
                        </div>
                      </div>
                    </div>

                    {/* Декоративные частицы */}
                    <div className="absolute top-2 right-2 w-1 h-1 bg-cyan-400 rounded-full animate-ping"></div>
                    <div className="absolute bottom-3 left-3 w-1 h-1 bg-emerald-400 rounded-full animate-ping" style={{animationDelay: '1s'}}></div>
                    <div className="absolute top-1/2 left-1 w-1 h-1 bg-teal-400 rounded-full animate-ping" style={{animationDelay: '2s'}}></div>
                  </div>
                </div>

                <StatsCard
                  title="Брак"
                  value={formatNumber(warehouseStats.currentDefects)}
                  icon={AlertTriangle}
                  iconColor="text-red-400"
                  iconBg="bg-red-500/20"
                  trend={{ value: Math.abs(warehouseStats.defectsTrend), isPositive: warehouseStats.defectsTrend < 0 }}
                  subtitle="Требует утилизации"
                  className="min-w-0"
                />

                <StatsCard
                  title="Возвраты с ПВЗ"
                  value={formatNumber(warehouseStats.currentReturns)}
                  icon={RotateCcw}
                  iconColor="text-yellow-400"
                  iconBg="bg-yellow-500/20"
                  trend={{ value: warehouseStats.returnsTrend, isPositive: false }}
                  subtitle="К обработке"
                  className="min-w-0"
                />

                <StatsCard
                  title="Расходники ФФ"
                  value={formatNumber(warehouseStats.currentFulfillmentSupplies)}
                  icon={Wrench}
                  iconColor="text-purple-400"
                  iconBg="bg-purple-500/20"
                  subtitle="Упаковка, этикетки, пленка"
                  className="min-w-0"
                />

                <StatsCard
                  title="Расходники селлеров"
                  value={formatNumber(warehouseStats.currentSellerSupplies)}
                  icon={Users}
                  iconColor="text-green-400"
                  iconBg="bg-green-500/20"
                  subtitle="Материалы клиентов"
                  className="min-w-0"
                />
              </div>
            )}
          </div>

          {/* Компактный заголовок с ключевыми метриками */}
          <div className="mb-6 flex-shrink-0">
            <div className="flex items-center justify-between mb-4">
              <div className="flex items-center space-x-4">
                <div className="p-2 bg-gradient-to-r from-blue-500/20 to-purple-500/20 rounded-xl">
                  <Warehouse className="h-6 w-6 text-blue-400" />
                </div>
                <div>
                  <div className="flex items-center space-x-3">
                    <span className="text-sm text-white/60">Эффективность</span>
                    <span className="text-lg font-bold text-green-400">{warehouseStats.efficiency}%</span>
                  </div>
                  <div className="flex items-center space-x-3">
                    <span className="text-sm text-white/60">Оборачиваемость</span>
                    <span className="text-lg font-bold text-blue-400">{warehouseStats.turnover}x</span>
                  </div>
                </div>
              </div>
              <div className="text-right">
                <div className="text-sm text-white/60">Загрузка склада</div>
                <div className="text-2xl font-bold text-white">{warehouseStats.utilizationRate}%</div>
              </div>
            </div>
          </div>

          {/* Нестандартные решения */}
          <div className="mt-8 space-y-6">
            {/* Интеллектуальные инсайты */}
            <Card className="glass-card p-6">
              <div className="flex items-center justify-between mb-4">
                <div className="flex items-center space-x-3">
                  <div className="p-2 bg-gradient-to-r from-green-500/20 to-blue-500/20 rounded-xl">
                    <Zap className="h-5 w-5 text-green-400" />
                  </div>
                  <h3 className="text-lg font-semibold text-white">Умные рекомендации</h3>
                </div>
                <Badge variant="secondary" className="bg-green-500/20 text-green-300">
                  AI-анализ
                </Badge>
              </div>
              
              <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
                <div className="p-4 bg-white/5 rounded-xl border border-white/10">
                  <div className="flex items-center space-x-2 mb-2">
                    <Target className="h-4 w-4 text-yellow-400" />
                    <span className="text-sm font-medium text-yellow-400">Оптимизация</span>
                  </div>
                  <p className="text-xs text-white/70">
                    Рекомендуется увеличить запас расходников на 15% для покрытия пикового спроса
                  </p>
                </div>
                
                <div className="p-4 bg-white/5 rounded-xl border border-white/10">
                  <div className="flex items-center space-x-2 mb-2">
                    <Activity className="h-4 w-4 text-blue-400" />
                    <span className="text-sm font-medium text-blue-400">Прогноз</span>
                  </div>
                  <p className="text-xs text-white/70">
                    Ожидается рост возвратов на 12% в следующем месяце. Подготовьте дополнительные места
                  </p>
                </div>
                
                <div className="p-4 bg-white/5 rounded-xl border border-white/10">
                  <div className="flex items-center space-x-2 mb-2">
                    <BarChart3 className="h-4 w-4 text-purple-400" />
                    <span className="text-sm font-medium text-purple-400">Тренд</span>
                  </div>
                  <p className="text-xs text-white/70">
                    Эффективность обработки товаров выросла на 8% за последний месяц
                  </p>
                </div>
              </div>
            </Card>

            {/* Быстрые действия */}
            <Card className="glass-card p-6">
              <div className="flex items-center justify-between mb-4">
                <h3 className="text-lg font-semibold text-white">Быстрые действия</h3>
                <div className="flex space-x-2">
                  <Button size="sm" variant="outline" className="border-white/20 text-white/70 hover:bg-white/10">
                    <Eye className="h-4 w-4 mr-2" />
                    Обзор
                  </Button>
                  <Button size="sm" variant="outline" className="border-white/20 text-white/70 hover:bg-white/10">
                    <Activity className="h-4 w-4 mr-2" />
                    Отчеты
                  </Button>
                </div>
              </div>
              
              <div className="text-center py-8">
                <Package className="h-12 w-12 text-white/40 mx-auto mb-4" />
                <p className="text-white/60 text-sm">
                  Основная функциональность склада будет добавлена на следующем этапе
                </p>
              </div>
            </Card>
          </div>
        </div>
      </main>
    </div>
  )
}