"use client";

import { useState } from "react";
import { useRouter } from "next/navigation";
import Link from "next/link";
import Navbar from "@/components/Navbar";
import Footer from "@/components/Footer";
import GoogleSignIn from "@/components/GoogleSignIn";

export default function LoginPage() {
  const router = useRouter();
  const [email, setEmail] = useState("");
  const [password, setPassword] = useState("");
  const [loading, setLoading] = useState(false);
  const [error, setError] = useState("");

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    setError("");
    setLoading(true);

    try {
      const response = await fetch("/api/auth/login", {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify({ email, password }),
      });

      const data = await response.json();

      if (!response.ok) {
        throw new Error(data.error || "Login failed");
      }

      // Store user in localStorage
      localStorage.setItem("user", JSON.stringify(data.user));
      localStorage.setItem("isAuthenticated", "true");

      // Redirect based on role
      if (data.user.role === "admin") {
        router.push("/admin");
      } else {
        router.push("/account");
      }
    } catch (error) {
      console.error("Login error:", error);
      setError(error instanceof Error ? error.message : "Login failed");
    } finally {
      setLoading(false);
    }
  };

  return (
    <div className="min-h-screen flex flex-col bg-gray-50">
      <Navbar />
      <main className="flex-grow flex items-center justify-center px-4 py-12">
        <div className="max-w-md w-full bg-white rounded-lg shadow-lg p-8">
          <h1 className="text-3xl font-bold text-gray-900 mb-2 text-center">Login</h1>
          <p className="text-gray-600 mb-6 text-center">Sign in to your account</p>

          {error && (
            <div className="mb-4 p-3 bg-red-100 border border-red-400 text-red-700 rounded">
              {error}
            </div>
          )}

          <form onSubmit={handleSubmit} className="space-y-4">
            <div>
              <label className="block text-sm font-semibold text-gray-700 mb-1">
                Email
              </label>
              <input
                type="email"
                value={email}
                onChange={(e) => setEmail(e.target.value)}
                required
                className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:border-blue-500"
                placeholder="your@email.com"
              />
            </div>

            <div>
              <label className="block text-sm font-semibold text-gray-700 mb-1">
                Password
              </label>
              <input
                type="password"
                value={password}
                onChange={(e) => setPassword(e.target.value)}
                required
                className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:outline-none focus:border-blue-500"
                placeholder="••••••••"
              />
            </div>

            <div className="flex items-center justify-between">
              <label className="flex items-center">
                <input type="checkbox" className="mr-2" />
                <span className="text-sm text-gray-600">Remember me</span>
              </label>
              <Link href="/forgot-password" className="text-sm text-blue-600 hover:underline">
                Forgot password?
              </Link>
            </div>

            <button
              type="submit"
              disabled={loading}
              className="w-full px-4 py-2 bg-blue-600 hover:bg-blue-700 text-white font-semibold rounded-lg transition disabled:opacity-50 disabled:cursor-not-allowed"
            >
              {loading ? "Logging in..." : "Login"}
            </button>
          </form>

          <div className="mt-6 text-center">
            <p className="text-gray-600">
              Don't have an account?{" "}
              <Link href="/register" className="text-blue-600 hover:underline font-semibold">
                Sign up
              </Link>
            </p>
          </div>

          <div className="mt-6 pt-6 border-t border-gray-200">
            <p className="text-center text-sm text-gray-600 mb-3">Or login with</p>
            <div className="space-y-2">
              <GoogleSignIn 
                type="login"
                onError={(error) => setError(error)}
              />
            </div>
          </div>
        </div>
      </main>
      <Footer />
    </div>
  );
}