import { Link } from "react-router";
import type { Route } from "./+types/admin.templates";
import { findAllSeasonTemplates } from "~/models/season-template";
import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "~/components/ui/card";
import { Button } from "~/components/ui/button";
import { Plus, FolderKanban } from "lucide-react";
import {
  Table,
  TableBody,
  TableCell,
  TableHead,
  TableHeader,
  TableRow,
} from "~/components/ui/table";
import { Badge } from "~/components/ui/badge";

export async function loader() {
  const templates = await findAllSeasonTemplates();
  return { templates };
}

export default function AdminTemplates({ loaderData }: Route.ComponentProps) {
  const { templates } = loaderData;

  return (
    <div className="p-8">
      <div className="flex items-center justify-between mb-6">
        <div>
          <h1 className="text-3xl font-bold">Season Templates</h1>
          <p className="text-muted-foreground mt-1">
            Manage season templates for league commissioners
          </p>
        </div>
        <Button asChild>
          <Link to="/admin/templates/new">
            <Plus className="mr-2 h-4 w-4" />
            Create Template
          </Link>
        </Button>
      </div>

      <Card>
        <CardHeader>
          <CardTitle>All Templates</CardTitle>
          <CardDescription>
            {templates.length} {templates.length === 1 ? "template" : "templates"} total
          </CardDescription>
        </CardHeader>
        <CardContent>
          {templates.length === 0 ? (
            <div className="text-center py-12">
              <FolderKanban className="mx-auto h-12 w-12 text-muted-foreground" />
              <h3 className="mt-4 text-lg font-semibold">No templates yet</h3>
              <p className="text-muted-foreground mt-2">
                Create your first season template to bundle sports seasons
              </p>
              <Button className="mt-4" asChild>
                <Link to="/admin/templates/new">
                  <Plus className="mr-2 h-4 w-4" />
                  Create Template
                </Link>
              </Button>
            </div>
          ) : (
            <Table>
              <TableHeader>
                <TableRow>
                  <TableHead>Name</TableHead>
                  <TableHead>Year</TableHead>
                  <TableHead>Status</TableHead>
                  <TableHead>Description</TableHead>
                  <TableHead className="text-right">Actions</TableHead>
                </TableRow>
              </TableHeader>
              <TableBody>
                {templates.map((template) => (
                  <TableRow key={template.id}>
                    <TableCell className="font-medium">{template.name}</TableCell>
                    <TableCell>{template.year}</TableCell>
                    <TableCell>
                      <Badge variant={template.isActive ? "default" : "secondary"}>
                        {template.isActive ? "Active" : "Inactive"}
                      </Badge>
                    </TableCell>
                    <TableCell className="text-muted-foreground max-w-md truncate">
                      {template.description || "-"}
                    </TableCell>
                    <TableCell className="text-right">
                      <Button variant="ghost" size="sm" asChild>
                        <Link to={`/admin/templates/${template.id}`}>Edit</Link>
                      </Button>
                    </TableCell>
                  </TableRow>
                ))}
              </TableBody>
            </Table>
          )}
        </CardContent>
      </Card>
    </div>
  );
}
