import { useState } from "react";
import { useNavigate } from "react-router-dom";
import { login } from "../modules/auth/api";
import { setToken } from "../lib/auth";
import { Button } from "../ui/Button";
import { Card } from "../ui/Card";
import { Input } from "../ui/Input";

export function LoginPage() {
  const navigate = useNavigate();
  const [email, setEmail] = useState("");
  const [password, setPassword] = useState("");
  const [error, setError] = useState<string | null>(null);

  const handleSubmit = async (event: React.FormEvent) => {
    event.preventDefault();
    setError(null);
    try {
      const result = await login(email, password);
      setToken(result.token);
      navigate("/");
    } catch (err: any) {
      setError(err.message);
    }
  };

  return (
    <div className="min-h-screen flex items-center justify-center bg-slate-50 dark:bg-slate-950">
      <Card className="w-full max-w-md">
        <h1 className="text-2xl font-semibold mb-6">Sign in</h1>
        {error ? <div className="mb-4 text-sm text-red-600">{error}</div> : null}
        <form onSubmit={handleSubmit} className="space-y-4">
          <label className="block">
            <span className="text-sm font-medium text-slate-700 dark:text-slate-200">Email</span>
            <Input type="email" value={email} onChange={(e) => setEmail(e.target.value)} required />
          </label>

          <label className="block">
            <span className="text-sm font-medium text-slate-700 dark:text-slate-200">Password</span>
            <Input type="password" value={password} onChange={(e) => setPassword(e.target.value)} required />
          </label>

          <Button type="submit" className="w-full">
            Sign in
          </Button>
        </form>
      </Card>
    </div>
  );
}