"use client";

import { FormEvent, useState } from "react";
import { signIn } from "next-auth/react";
import type { Route } from "next";
import { useRouter } from "next/navigation";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";

export function LoginForm() {
  const router = useRouter();

  const [email, setEmail] = useState("");
  const [password, setPassword] = useState("");
  const [error, setError] = useState<string | null>(null);
  const [pending, setPending] = useState(false);

  async function onSubmit(event: FormEvent<HTMLFormElement>) {
    event.preventDefault();
    setError(null);
    setPending(true);

    const result = await signIn("credentials", {
      email,
      password,
      redirect: false
    });

    setPending(false);

    if (!result || result.error) {
      setError("Invalid email or password");
      return;
    }

    router.push("/dashboard" as Route);
    router.refresh();
  }

  return (
    <form className="space-y-4" onSubmit={onSubmit}>
      <label className="block space-y-2 text-sm">
        <span className="text-muted">Email</span>
        <Input
          required
          type="email"
          autoComplete="email"
          value={email}
          onChange={(event) => setEmail(event.target.value)}
        />
      </label>

      <label className="block space-y-2 text-sm">
        <span className="text-muted">Password</span>
        <Input
          required
          type="password"
          autoComplete="current-password"
          value={password}
          onChange={(event) => setPassword(event.target.value)}
        />
      </label>

      {error ? <p className="text-sm text-red-300">{error}</p> : null}

      <Button type="submit" variant="primary" className="w-full" disabled={pending}>
        {pending ? "Signing in..." : "Sign in"}
      </Button>
    </form>
  );
}