multica/apps/web/app/(auth)/login/page.tsx

"use client";

import { Suspense, useState } from "react";
import { useSearchParams, useRouter } from "next/navigation";
import { useAuthStore } from "@/features/auth";
import { useWorkspaceStore } from "@/features/workspace";
import { api } from "@/shared/api";
import {
  Card,
  CardHeader,
  CardTitle,
  CardDescription,
  CardContent,
  CardFooter,
} from "@multica/ui/components/ui/card";
import { Input } from "@multica/ui/components/ui/input";
import { Button } from "@multica/ui/components/ui/button";
import { Label } from "@multica/ui/components/ui/label";

function LoginPageContent() {
  const router = useRouter();
  const login = useAuthStore((s) => s.login);
  const isLoading = useAuthStore((s) => s.isLoading);
  const hydrateWorkspace = useWorkspaceStore((s) => s.hydrateWorkspace);
  const searchParams = useSearchParams();
  const [email, setEmail] = useState("");
  const [name, setName] = useState("");
  const [error, setError] = useState("");
  const [submitting, setSubmitting] = useState(false);

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    if (!email) {
      setError("Email is required");
      return;
    }
    setError("");
    setSubmitting(true);
    try {
      await login(email, name || undefined);
      const wsList = await api.listWorkspaces();
      await hydrateWorkspace(wsList);
      router.push(searchParams.get("next") || "/issues");
    } catch (err) {
      setError("Login failed. Make sure the server is running.");
      setSubmitting(false);
    }
  };

  return (
    <div className="flex min-h-screen items-center justify-center">
      <Card className="w-full max-w-sm">
        <CardHeader className="text-center">
          <CardTitle className="text-2xl">Multica</CardTitle>
          <CardDescription>AI-native task management</CardDescription>
        </CardHeader>
        <CardContent>
          <form id="login-form" onSubmit={handleSubmit} className="space-y-4">
            <div className="space-y-2">
              <Label htmlFor="name">Name</Label>
              <Input
                id="name"
                type="text"
                placeholder="Your name"
                value={name}
                onChange={(e) => setName(e.target.value)}
              />
            </div>
            <div className="space-y-2">
              <Label htmlFor="email">Email</Label>
              <Input
                id="email"
                type="email"
                placeholder="you@example.com"
                value={email}
                onChange={(e) => setEmail(e.target.value)}
                required
              />
            </div>
            {error && (
              <p className="text-sm text-destructive">{error}</p>
            )}
          </form>
        </CardContent>
        <CardFooter>
          <Button
            type="submit"
            form="login-form"
            disabled={submitting || isLoading}
            className="w-full"
            size="lg"
          >
            {submitting ? "Signing in..." : "Sign in"}
          </Button>
        </CardFooter>
      </Card>
    </div>
  );
}

export default function LoginPage() {
  return (
    <Suspense fallback={null}>
      <LoginPageContent />
    </Suspense>
  );
}