"use client";
import { useState } from "react";
import { API_BASE } from "@/lib/api";

export default function LoginPage() {
  const [email, setEmail] = useState("");
  const [password, setPassword] = useState("");
  const [err, setErr] = useState("");

  async function onSubmit(e){
    e.preventDefault();
    setErr("");
    const res = await fetch(`${API_BASE}/auth/login`, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ email, password }),
      credentials: "include",
    });
    if (!res.ok) { setErr("เข้าสู่ระบบไม่สำเร็จ"); return; }
    location.href = "/dashboard";
  }

  return (
    <div className="grid place-items-center min-h-screen">
      <form onSubmit={onSubmit} className="bg-white/90 rounded-2xl p-6 w-full max-w-sm shadow">
        <div className="text-lg font-semibold mb-4">เข้าสู่ระบบ</div>
        <input className="w-full border rounded-xl p-2 mb-2" placeholder="อีเมล" value={email} onChange={e=>setEmail(e.target.value)} />
        <input type="password" className="w-full border rounded-xl p-2 mb-3" placeholder="รหัสผ่าน" value={password} onChange={e=>setPassword(e.target.value)} />
        {err && <div className="text-red-600 text-sm mb-2">{err}</div>}
        <button className="w-full rounded-xl p-2 text-white" style={{background:'#0D5C75'}}>เข้าสู่ระบบ</button>
      </form>
    </div>
  );
}