"use client";

import { useState } from "react";
import { useRouter } from "next/navigation";
import Image from "next/image";
import { Loader2, Lock, Mail, TriangleAlert } from "lucide-react";
import { Button } from "@/components/ui/button";
import { Card, CardContent, CardHeader } from "@/components/ui/card";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { login } from "@/lib/api";

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

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

    try {
      const response = await login(email, password);

      localStorage.setItem("user_role", response.user.role);
      localStorage.setItem("user_email", response.user.email);
      localStorage.setItem("association_id", response.association.id || "");

      if (response.user.role === "CLIENT") {
        router.push("/client-portal");
      } else {
        router.push("/dashboard");
      }
    } catch {
      setError("Email o password non corretti");
    } finally {
      setLoading(false);
    }
  };

  return (
    <div className="relative flex min-h-screen flex-col overflow-hidden bg-muted">
      {/* Tricolor accent bar */}
      <div className="flex h-1.5 w-full shrink-0">
        <span className="flex-1 bg-[#2e7d46]" />
        <span className="flex-1 bg-foreground/10" />
        <span className="flex-1 bg-[#b23b3b]" />
      </div>

      {/* Centered login card */}
      <div className="relative z-10 flex flex-1 items-center justify-center p-6">
        <Card className="w-full max-w-sm shadow-lg">
          <CardHeader className="flex flex-col items-center gap-3 text-center">
            <Image
              src="/logo-encap.jpg"
              alt="ENCAP"
              width={44}
              height={44}
              className="rounded-md shadow-sm"
            />
            <div>
              <h2 className="text-xl font-semibold tracking-tight">Accedi</h2>
              <p className="mt-1 text-sm text-muted-foreground">
                Inserisci le tue credenziali per accedere al portale
              </p>
            </div>
          </CardHeader>
          <CardContent>
            <form onSubmit={handleSubmit} className="space-y-5">
              {error && (
                <div className="flex items-center gap-2 rounded-md bg-destructive/10 px-3 py-2.5 text-sm text-destructive">
                  <TriangleAlert className="size-4 shrink-0" />
                  {error}
                </div>
              )}

              <div className="space-y-2">
                <Label htmlFor="email">Email</Label>
                <div className="relative">
                  <Mail className="pointer-events-none absolute left-3 top-1/2 size-4 -translate-y-1/2 text-muted-foreground" />
                  <Input
                    id="email"
                    type="email"
                    autoComplete="email"
                    placeholder="nome@associazione.it"
                    className="pl-9"
                    value={email}
                    onChange={(e) => setEmail(e.target.value)}
                    required
                  />
                </div>
              </div>

              <div className="space-y-2">
                <Label htmlFor="password">Password</Label>
                <div className="relative">
                  <Lock className="pointer-events-none absolute left-3 top-1/2 size-4 -translate-y-1/2 text-muted-foreground" />
                  <Input
                    id="password"
                    type="password"
                    autoComplete="current-password"
                    className="pl-9"
                    value={password}
                    onChange={(e) => setPassword(e.target.value)}
                    required
                  />
                </div>
              </div>

              <Button type="submit" className="w-full" disabled={loading}>
                {loading && <Loader2 className="size-4 animate-spin" />}
                {loading ? "Accesso in corso..." : "Accedi"}
              </Button>
            </form>
          </CardContent>
        </Card>
      </div>
    </div>
  );
}