"use client";

import { useState } from "react";
import Link from "next/link";
import api from "@/lib/api";

import toast from "react-hot-toast";
import { Mail, Lock, LogIn, UserPlus } from "lucide-react";

export default function LoginPage() {
  const [form, setForm] = useState({
    email: "",
    password: "",
  });

  const [loading, setLoading] = useState(false);

  const handleLogin = async () => {
    if (!form.email || !form.password) {
     
       toast.success("Please enter email and password");
      return;
    }

    try {
      setLoading(true);

      const res = await api.post("/login", form);

        localStorage.setItem("auth_token", res.data.token);
        localStorage.setItem("user", JSON.stringify(res.data.user));
        toast.success("Login successful");
       

        if (res.data.user.role === "vendor") {
        window.location.href = "/vendor/dashboard";
        } else if (res.data.user.role === "customer") {
        window.location.href = "/account";
        } else {
        window.location.href = "/";
        }
    } catch (error) {
      console.error(error);
      toast.success("Invalid login details");
    } finally {
      setLoading(false);
    }
  };

  return (
    <>
      

      <main className="min-h-screen bg-[#f7fff8] flex items-center justify-center px-4 py-16">
        <div className="w-full max-w-md bg-white rounded-[2rem] border border-green-100 shadow-xl p-7">
          <div className="text-center mb-8">
            <div className="w-16 h-16 mx-auto bg-green-50 text-green-600 rounded-2xl flex items-center justify-center">
              <LogIn size={30} />
            </div>

            <h1 className="text-3xl font-black mt-5 text-slate-900">
              Welcome Back
            </h1>

            <p className="text-slate-500 mt-2">
              Login as customer or vendor
            </p>
          </div>

          <div className="space-y-4">
            <Input
              icon={<Mail size={18} />}
              type="email"
              placeholder="Email Address"
              value={form.email}
              onChange={(v) => setForm({ ...form, email: v })}
            />

            <Input
              icon={<Lock size={18} />}
              type="password"
              placeholder="Password"
              value={form.password}
              onChange={(v) => setForm({ ...form, password: v })}
            />

            <button
              onClick={handleLogin}
              disabled={loading}
              className="cursor-pointer w-full bg-green-600 hover:bg-green-700 disabled:bg-slate-300 text-white py-4 rounded-2xl font-black transition"
            >
              {loading ? "Logging in..." : "Login"}
            </button>
          </div>

          <div className="mt-6 text-center">
            <p className="text-slate-500 text-sm">
              Don&apos;t have an account?
            </p>

            <Link
              href="/register"
              className="mt-3 inline-flex items-center gap-2 text-green-600 font-black"
            >
              <UserPlus size={17} />
              Create Account
            </Link>
          </div>
        </div>
      </main>

    </>
  );
}

function Input({
  icon,
  type,
  placeholder,
  value,
  onChange,
}: {
  icon: React.ReactNode;
  type: string;
  placeholder: string;
  value: string;
  onChange: (value: string) => void;
}) {
  return (
    <div className="relative">
      <div className="absolute left-4 top-1/2 -translate-y-1/2 text-slate-400">
        {icon}
      </div>

      <input
        type={type}
        value={value}
        onChange={(e) => onChange(e.target.value)}
        placeholder={placeholder}
        className="w-full bg-slate-100 border border-slate-200 rounded-2xl py-4 pl-12 pr-4 outline-none focus:border-green-500"
      />
    </div>
  );
}