import Link from 'next/link';

import { ArrowLeft, FileDown } from 'lucide-react';

import { getSupabaseServerClient } from '@kit/supabase/server-client';
import { Button } from '@kit/ui/button';
import {
  Card,
  CardContent,
  CardDescription,
  CardFooter,
  CardHeader,
  CardTitle,
} from '@kit/ui/card';
import { Input } from '@kit/ui/input';
import { Label } from '@kit/ui/label';

import { CmsPageShell } from '~/components/cms-page-shell';

interface PageProps {
  params: Promise<{ account: string }>;
  searchParams: Promise<{ type?: string }>;
}

const DOCUMENT_LABELS: Record<string, string> = {
  'member-card': 'Mitgliedsausweis',
  invoice: 'Rechnung',
  labels: 'Etiketten',
  report: 'Bericht',
  letter: 'Brief',
  certificate: 'Zertifikat',
};

export default async function GenerateDocumentPage({
  params,
  searchParams,
}: PageProps) {
  const { account } = await params;
  const { type } = await searchParams;
  const client = getSupabaseServerClient();

  const { data: acct } = await client
    .from('accounts')
    .select('id')
    .eq('slug', account)
    .single();

  if (!acct) return <div>Konto nicht gefunden</div>;

  const selectedType = type ?? 'member-card';
  const selectedLabel = DOCUMENT_LABELS[selectedType] ?? 'Dokument';

  return (
    <CmsPageShell account={account} title="Dokument generieren">
      <div className="flex w-full flex-col gap-6">
        {/* Back link */}
        <div>
          <Link
            href={`/home/${account}/documents`}
            className="text-muted-foreground hover:text-foreground inline-flex items-center text-sm"
          >
            <ArrowLeft className="mr-1 h-4 w-4" />
            Zurück zu Dokumente
          </Link>
        </div>

        <Card className="max-w-2xl">
          <CardHeader>
            <CardTitle>{selectedLabel} generieren</CardTitle>
            <CardDescription>
              Wählen Sie den Dokumenttyp und die gewünschten Optionen.
            </CardDescription>
          </CardHeader>

          <CardContent>
            <form className="flex flex-col gap-5">
              {/* Document Type */}
              <div className="flex flex-col gap-2">
                <Label htmlFor="documentType">Dokumenttyp</Label>
                <select
                  id="documentType"
                  name="documentType"
                  defaultValue={selectedType}
                  className="border-input bg-background ring-offset-background placeholder:text-muted-foreground focus-visible:ring-ring flex h-10 w-full rounded-md border px-3 py-2 text-sm focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-offset-2"
                >
                  <option value="member-card">Mitgliedsausweis</option>
                  <option value="invoice">Rechnung</option>
                  <option value="labels">Etiketten</option>
                  <option value="report">Bericht</option>
                  <option value="letter">Brief</option>
                  <option value="certificate">Zertifikat</option>
                </select>
              </div>

              {/* Title */}
              <div className="flex flex-col gap-2">
                <Label htmlFor="title">Titel / Bezeichnung</Label>
                <Input
                  id="title"
                  name="title"
                  placeholder={`z.B. ${selectedLabel} für Max Mustermann`}
                  required
                />
              </div>

              {/* Format */}
              <div className="grid grid-cols-1 gap-4 sm:grid-cols-2">
                <div className="flex flex-col gap-2">
                  <Label htmlFor="format">Format</Label>
                  <select
                    id="format"
                    name="format"
                    className="border-input bg-background ring-offset-background placeholder:text-muted-foreground focus-visible:ring-ring flex h-10 w-full rounded-md border px-3 py-2 text-sm focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-offset-2"
                  >
                    <option value="A4">A4</option>
                    <option value="A5">A5</option>
                    <option value="letter">Letter</option>
                  </select>
                </div>
                <div className="flex flex-col gap-2">
                  <Label htmlFor="orientation">Ausrichtung</Label>
                  <select
                    id="orientation"
                    name="orientation"
                    className="border-input bg-background ring-offset-background placeholder:text-muted-foreground focus-visible:ring-ring flex h-10 w-full rounded-md border px-3 py-2 text-sm focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-offset-2"
                  >
                    <option value="portrait">Hochformat</option>
                    <option value="landscape">Querformat</option>
                  </select>
                </div>
              </div>

              {/* Info */}
              <div className="rounded-md bg-muted/50 p-4 text-sm text-muted-foreground">
                <p>
                  <strong>Hinweis:</strong> Die Dokumentgenerierung verwendet
                  Ihre gespeicherten Vorlagen. Stellen Sie sicher, dass eine
                  passende Vorlage für den gewählten Dokumenttyp existiert.
                </p>
              </div>
            </form>
          </CardContent>

          <CardFooter className="flex justify-between">
            <Link href={`/home/${account}/documents`}>
              <Button variant="outline">Abbrechen</Button>
            </Link>
            <Button type="submit">
              <FileDown className="mr-2 h-4 w-4" />
              Generieren
            </Button>
          </CardFooter>
        </Card>
      </div>
    </CmsPageShell>
  );
}
