import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
import { Skeleton } from "@/components/ui/skeleton";
import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
import { MetricsCardSkeleton } from './SkeletonLoaders';
import { 
  TrendingUp, 
  Package, 
  Users, 
  BarChart3,
  Activity
} from "lucide-react";

export default function AnalyticsDashboardSkeleton() {
  return (
    <div className="space-y-6">
      {/* Key Metrics Cards */}
      <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-4 lg:gap-6">
        {[...Array(4)].map((_, i) => (
          <MetricsCardSkeleton key={i} />
        ))}
      </div>

      {/* Completion Rate Card */}
      <Card>
        <CardHeader>
          <CardTitle className="flex items-center gap-2">
            <Activity className="h-5 w-5" />
            Order Completion Rate
          </CardTitle>
          <CardDescription>
            Percentage of orders that have been successfully completed
          </CardDescription>
        </CardHeader>
        <CardContent>
          <div className="flex items-center gap-4">
            <Skeleton className="h-12 w-16" />
            <div className="flex-1">
              <Skeleton className="w-full h-2 rounded-full" />
            </div>
            <Skeleton className="h-6 w-16" />
          </div>
        </CardContent>
      </Card>



      {/* Analytics Tabs */}
      <div className="space-y-6">
        <Tabs defaultValue="revenue" className="space-y-6">
          <TabsList className="grid w-full grid-cols-4">
            <TabsTrigger value="revenue" className="flex items-center gap-2">
              <TrendingUp className="h-4 w-4" />
              Revenue
            </TabsTrigger>
            <TabsTrigger value="products" className="flex items-center gap-2">
              <Package className="h-4 w-4" />
              Products
            </TabsTrigger>
            <TabsTrigger value="customers" className="flex items-center gap-2">
              <Users className="h-4 w-4" />
              Customers
            </TabsTrigger>
            <TabsTrigger value="orders" className="flex items-center gap-2">
              <BarChart3 className="h-4 w-4" />
              Orders
            </TabsTrigger>
          </TabsList>

          <TabsContent value="revenue" className="space-y-6">
            <Card>
              <CardHeader>
                <CardTitle className="flex items-center gap-2">
                  <TrendingUp className="h-5 w-5" />
                  Revenue Trends
                </CardTitle>
                <CardDescription>
                  Revenue performance over the selected time period
                </CardDescription>
              </CardHeader>
              <CardContent>
                <div className="space-y-6">
                  {/* Chart area */}
                  <div className="h-64 bg-muted/20 rounded-md animate-pulse" />
                  
                  {/* Summary stats */}
                  <div className="grid grid-cols-3 gap-4 pt-4 border-t">
                    {[...Array(3)].map((_, i) => (
                      <div key={i} className="text-center space-y-2">
                        <Skeleton className="h-8 w-20 mx-auto" />
                        <Skeleton className="h-4 w-24 mx-auto" />
                      </div>
                    ))}
                  </div>
                </div>
              </CardContent>
            </Card>
          </TabsContent>

          <TabsContent value="products" className="space-y-6">
            <Card>
              <CardHeader>
                <CardTitle className="flex items-center gap-2">
                  <Package className="h-5 w-5" />
                  Product Performance
                </CardTitle>
                <CardDescription>
                  Top performing products by revenue and sales
                </CardDescription>
              </CardHeader>
              <CardContent>
                <div className="space-y-4">
                  {/* Table header */}
                  <div className="grid grid-cols-5 gap-4">
                    {[...Array(5)].map((_, i) => (
                      <Skeleton key={i} className="h-4 w-full" />
                    ))}
                  </div>
                  
                  {/* Table rows */}
                  {[...Array(8)].map((_, rowIndex) => (
                    <div key={rowIndex} className="grid grid-cols-5 gap-4">
                      {[...Array(5)].map((_, colIndex) => (
                        <div key={colIndex} className="flex items-center gap-3">
                          {colIndex === 0 && (
                            <Skeleton className="h-10 w-10 rounded" />
                          )}
                          <Skeleton className="h-4 flex-1" />
                        </div>
                      ))}
                    </div>
                  ))}
                </div>
              </CardContent>
            </Card>
          </TabsContent>

          <TabsContent value="customers" className="space-y-6">
            <Card>
              <CardHeader>
                <CardTitle className="flex items-center gap-2">
                  <Users className="h-5 w-5" />
                  Customer Insights
                </CardTitle>
                <CardDescription>
                  Customer segmentation and behavior analysis
                </CardDescription>
              </CardHeader>
              <CardContent>
                <div className="space-y-6">
                  {/* Customer segments */}
                  <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
                    {[...Array(4)].map((_, i) => (
                      <div key={i} className="text-center space-y-2">
                        <Skeleton className="h-8 w-16 mx-auto" />
                        <Skeleton className="h-4 w-20 mx-auto" />
                      </div>
                    ))}
                  </div>
                  
                  {/* Top customers table */}
                  <div className="space-y-4">
                    <Skeleton className="h-6 w-32" />
                    {[...Array(5)].map((_, i) => (
                      <div key={i} className="flex items-center justify-between p-4 border rounded-lg">
                        <div className="space-y-2">
                          <Skeleton className="h-4 w-24" />
                          <Skeleton className="h-3 w-16" />
                        </div>
                        <div className="text-right space-y-2">
                          <Skeleton className="h-4 w-16" />
                          <Skeleton className="h-3 w-12" />
                        </div>
                      </div>
                    ))}
                  </div>
                </div>
              </CardContent>
            </Card>
          </TabsContent>

          <TabsContent value="orders" className="space-y-6">
            <Card>
              <CardHeader>
                <CardTitle className="flex items-center gap-2">
                  <BarChart3 className="h-5 w-5" />
                  Order Analytics
                </CardTitle>
                <CardDescription>
                  Order status distribution and trends
                </CardDescription>
              </CardHeader>
              <CardContent>
                <div className="space-y-6">
                  {/* Chart area */}
                  <div className="h-64 bg-muted/20 rounded-md animate-pulse" />
                </div>
              </CardContent>
            </Card>
          </TabsContent>
        </Tabs>
      </div>
    </div>
  );
}