"use client";

import { useState } from "react";
import { signIn } from "next-auth/react";
import { useRouter } from "next/navigation";
import Image from "next/image";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
import { useToast } from "@/hooks/use-toast";

export default function LoginPage() {
  const router = useRouter();
  const { toast } = useToast();
  const [isLoading, setIsLoading] = useState(false);
  const [formData, setFormData] = useState({
    email: "",
    password: "",
  });

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

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

      if (result?.error) {
        toast({
          title: "Error",
          description: "Invalid email or password",
          variant: "destructive",
        });
      } else {
        router.push("/dashboard");
        router.refresh();
      }
    } catch (error) {
      toast({
        title: "Error",
        description: "Something went wrong. Please try again.",
        variant: "destructive",
      });
    } finally {
      setIsLoading(false);
    }
  };

  return (
    <div className="min-h-screen flex items-center justify-center bg-gradient-to-br from-blue-50 to-gray-100 p-4">
      <Card className="w-full max-w-md">
        <CardHeader className="space-y-4">
          <div className="flex justify-center">
            <div className="flex items-center gap-3">
              <div className="relative w-14 h-14">
                <Image
                  src="/logo.png"
                  alt="Greco"
                  fill
                  className="object-contain"
                />
              </div>
              <span className="text-3xl font-bold tracking-wide text-blue-900">GRECO</span>
            </div>
          </div>
          <CardTitle className="text-2xl text-center">Welcome Back</CardTitle>
          <CardDescription className="text-center">
            Sign in to access Greco Workflow System
          </CardDescription>
        </CardHeader>
        <CardContent>
          <form onSubmit={handleSubmit} className="space-y-4">
            <div className="space-y-2">
              <Label htmlFor="email">Email</Label>
              <Input
                id="email"
                type="email"
                placeholder="john@example.com"
                value={formData.email}
                onChange={(e) =>
                  setFormData({ ...formData, email: e.target.value })
                }
                required
              />
            </div>
            <div className="space-y-2">
              <Label htmlFor="password">Password</Label>
              <Input
                id="password"
                type="password"
                placeholder="••••••••"
                value={formData.password}
                onChange={(e) =>
                  setFormData({ ...formData, password: e.target.value })
                }
                required
              />
            </div>
            <Button type="submit" className="w-full" disabled={isLoading}>
              {isLoading ? "Signing in..." : "Sign In"}
            </Button>
          </form>
          <div className="mt-4 text-center text-sm text-muted-foreground">
            Contact your administrator if you need an account.
          </div>
        </CardContent>
      </Card>
    </div>
  );
}