'use client';

import { use } from 'react';
import { useRouter } from 'next/navigation';
import { trpc } from '@/lib/trpc/client';
import { Button } from '@/components/ui/button';
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs';
import { Badge } from '@/components/ui/badge';
import { ArrowLeft } from 'lucide-react';
import type { Route } from 'next';

export default function AwardDetailPage({
  params: paramsPromise
}: {
  params: Promise<{ competitionId: string; awardId: string }>;
}) {
  const params = use(paramsPromise);
  const router = useRouter();
  const { data: award, isLoading } = trpc.specialAward.get.useQuery({
    id: params.awardId
  });

  if (isLoading) {
    return (
      <div className="space-y-6">
        <div className="flex items-center gap-4">
          <Button variant="ghost" size="icon" onClick={() => router.back()}>
            <ArrowLeft className="h-4 w-4" />
          </Button>
          <div>
            <h1 className="text-3xl font-bold">Loading...</h1>
          </div>
        </div>
      </div>
    );
  }

  if (!award) {
    return (
      <div className="space-y-6">
        <div className="flex items-center gap-4">
          <Button variant="ghost" size="icon" onClick={() => router.back()}>
            <ArrowLeft className="h-4 w-4" />
          </Button>
          <div>
            <h1 className="text-3xl font-bold">Award Not Found</h1>
          </div>
        </div>
      </div>
    );
  }

  return (
    <div className="space-y-6">
      <div className="flex items-center gap-4">
        <Button
          variant="ghost"
          size="icon"
          onClick={() =>
            router.push(`/admin/competitions/${params.competitionId}/awards` as Route)
          }
        >
          <ArrowLeft className="h-4 w-4" />
        </Button>
        <div className="flex-1">
          <h1 className="text-3xl font-bold">{award.name}</h1>
          <p className="text-muted-foreground">{award.description || 'No description'}</p>
        </div>
      </div>

      <Tabs defaultValue="overview" className="w-full">
        <TabsList className="grid w-full grid-cols-3">
          <TabsTrigger value="overview">Overview</TabsTrigger>
          <TabsTrigger value="eligible">Eligible Projects</TabsTrigger>
          <TabsTrigger value="winners">Winners</TabsTrigger>
        </TabsList>

        <TabsContent value="overview" className="space-y-4">
          <Card>
            <CardHeader>
              <CardTitle>Award Information</CardTitle>
              <CardDescription>Configuration and settings</CardDescription>
            </CardHeader>
            <CardContent className="space-y-4">
              <div className="grid grid-cols-1 gap-4 sm:grid-cols-2">
                <div>
                  <p className="text-sm font-medium text-muted-foreground">Scoring Mode</p>
                  <Badge variant="outline" className="mt-1">
                    {award.scoringMode}
                  </Badge>
                </div>
                <div>
                  <p className="text-sm font-medium text-muted-foreground">AI Eligibility</p>
                  <Badge variant="outline" className="mt-1">
                    {award.useAiEligibility ? 'Enabled' : 'Disabled'}
                  </Badge>
                </div>
                <div>
                  <p className="text-sm font-medium text-muted-foreground">Status</p>
                  <Badge variant={award.status === 'DRAFT' ? 'secondary' : 'default'} className="mt-1">
                    {award.status}
                  </Badge>
                </div>
                <div>
                  <p className="text-sm font-medium text-muted-foreground">Program</p>
                  <p className="mt-1 text-sm">{award.program?.name}</p>
                </div>
              </div>
            </CardContent>
          </Card>
        </TabsContent>

        <TabsContent value="eligible" className="space-y-4">
          <Card>
            <CardHeader>
              <CardTitle>Eligible Projects</CardTitle>
              <CardDescription>
                Projects that qualify for this award ({award?.eligibleCount || 0})
              </CardDescription>
            </CardHeader>
            <CardContent>
              <p className="text-center text-muted-foreground">
                {award?.eligibleCount || 0} eligible projects
              </p>
            </CardContent>
          </Card>
        </TabsContent>

        <TabsContent value="winners" className="space-y-4">
          <Card>
            <CardHeader>
              <CardTitle>Award Winners</CardTitle>
              <CardDescription>Selected winners for this award</CardDescription>
            </CardHeader>
            <CardContent>
              {award?.winnerProject ? (
                <div className="rounded-lg border p-4">
                  <div>
                    <p className="font-medium">{award.winnerProject.title}</p>
                    <p className="text-sm text-muted-foreground">{award.winnerProject.teamName}</p>
                  </div>
                  <Badge className="mt-2">Winner</Badge>
                </div>
              ) : (
                <p className="text-center text-muted-foreground">No winner selected yet</p>
              )}
            </CardContent>
          </Card>
        </TabsContent>
      </Tabs>
    </div>
  );
}