'use client';

import { useCallback } from 'react';

import Link from 'next/link';
import { useRouter, useSearchParams } from 'next/navigation';

import { Pencil, Plus } from 'lucide-react';

import { formatDate } from '@kit/shared/dates';
import { Button } from '@kit/ui/button';
import { Card, CardContent, CardHeader, CardTitle } from '@kit/ui/card';
import { useActionWithToast } from '@kit/ui/use-action-with-toast';

import { deleteCompetition } from '../server/actions/fischerei-actions';
import { DeleteConfirmButton } from './delete-confirm-button';

interface CompetitionsDataTableProps {
  data: Array<Record<string, unknown>>;
  total: number;
  page: number;
  pageSize: number;
  account: string;
  accountId: string;
}

export function CompetitionsDataTable({
  data,
  total,
  page,
  pageSize,
  account,
  accountId,
}: CompetitionsDataTableProps) {
  const router = useRouter();
  const searchParams = useSearchParams();
  const totalPages = Math.max(1, Math.ceil(total / pageSize));

  const { execute: executeDelete, isPending: isDeleting } = useActionWithToast(
    deleteCompetition,
    {
      successMessage: 'Wettbewerb gelöscht',
      onSuccess: () => router.refresh(),
    },
  );

  const updateParams = useCallback(
    (updates: Record<string, string>) => {
      const params = new URLSearchParams(searchParams.toString());
      for (const [key, value] of Object.entries(updates)) {
        if (value) {
          params.set(key, value);
        } else {
          params.delete(key);
        }
      }
      if (!('page' in updates)) params.delete('page');
      router.push(`?${params.toString()}`);
    },
    [router, searchParams],
  );

  const handlePageChange = useCallback(
    (newPage: number) => {
      updateParams({ page: String(newPage) });
    },
    [updateParams],
  );

  return (
    <div className="space-y-4">
      {/* Toolbar */}
      <div className="flex items-center justify-between">
        <h2 className="text-lg font-semibold">Wettbewerbe ({total})</h2>
        <Link href={`/home/${account}/fischerei/competitions/new`}>
          <Button size="sm" data-test="competitions-new-btn">
            <Plus className="mr-2 h-4 w-4" />
            Neuer Wettbewerb
          </Button>
        </Link>
      </div>

      {/* Table */}
      <Card>
        <CardContent className="pt-6">
          {data.length === 0 ? (
            <div className="flex flex-col items-center justify-center rounded-lg border border-dashed p-12 text-center">
              <h3 className="text-lg font-semibold">
                Keine Wettbewerbe vorhanden
              </h3>
              <p className="text-muted-foreground mt-1 max-w-sm text-sm">
                Erstellen Sie Ihren ersten Wettbewerb.
              </p>
              <Link
                href={`/home/${account}/fischerei/competitions/new`}
                className="mt-4"
              >
                <Button>Neuer Wettbewerb</Button>
              </Link>
            </div>
          ) : (
            <div className="rounded-md border">
              <table className="w-full text-sm">
                <thead>
                  <tr className="bg-muted/50 border-b">
                    <th scope="col" className="p-3 text-left font-medium">
                      Name
                    </th>
                    <th scope="col" className="p-3 text-left font-medium">
                      Datum
                    </th>
                    <th scope="col" className="p-3 text-left font-medium">
                      Gewässer
                    </th>
                    <th scope="col" className="p-3 text-right font-medium">
                      Max. Teilnehmer
                    </th>
                    <th scope="col" className="p-3 text-right font-medium">
                      Aktionen
                    </th>
                  </tr>
                </thead>
                <tbody>
                  {data.map((comp) => {
                    const waters = comp.waters as Record<
                      string,
                      unknown
                    > | null;

                    return (
                      <tr
                        key={String(comp.id)}
                        className="hover:bg-muted/30 cursor-pointer border-b"
                        onClick={() =>
                          router.push(
                            `/home/${account}/fischerei/competitions/${String(comp.id)}`,
                          )
                        }
                      >
                        <td className="p-3 font-medium">{String(comp.name)}</td>
                        <td className="p-3">
                          {formatDate(comp.competition_date as string | null)}
                        </td>
                        <td className="p-3">
                          {waters ? String(waters.name) : '—'}
                        </td>
                        <td className="p-3 text-right">
                          {comp.max_participants != null
                            ? String(comp.max_participants)
                            : '—'}
                        </td>
                        <td className="p-3 text-right">
                          <div className="flex items-center justify-end gap-1">
                            <Button
                              variant="ghost"
                              size="sm"
                              aria-label="Wettkampf bearbeiten"
                              data-test="competition-edit-btn"
                              onClick={(e) => {
                                e.stopPropagation();
                                router.push(
                                  `/home/${account}/fischerei/competitions/${String(comp.id)}`,
                                );
                              }}
                            >
                              <Pencil className="h-4 w-4" aria-hidden="true" />
                            </Button>
                            <DeleteConfirmButton
                              title="Wettbewerb löschen"
                              description="Möchten Sie diesen Wettbewerb wirklich löschen? Diese Aktion kann nicht rückgängig gemacht werden."
                              isPending={isDeleting}
                              onConfirm={() =>
                                executeDelete({
                                  competitionId: String(comp.id),
                                  accountId,
                                })
                              }
                            />
                          </div>
                        </td>
                      </tr>
                    );
                  })}
                </tbody>
              </table>
            </div>
          )}

          {totalPages > 1 && (
            <div className="mt-4 flex items-center justify-between">
              <p className="text-muted-foreground text-sm">
                Seite {page} von {totalPages} ({total} Einträge)
              </p>
              <div className="flex gap-2">
                <Button
                  variant="outline"
                  size="sm"
                  disabled={page <= 1}
                  onClick={() => handlePageChange(page - 1)}
                >
                  Zurück
                </Button>
                <Button
                  variant="outline"
                  size="sm"
                  disabled={page >= totalPages}
                  onClick={() => handlePageChange(page + 1)}
                >
                  Weiter
                </Button>
              </div>
            </div>
          )}
        </CardContent>
      </Card>
    </div>
  );
}