"use client";

import { useEffect, useState } from "react";
import { HomeBootOverlay } from "@/app/components/HomeBootOverlay";
import styles from "../vip.module.css";
import { LoginForm } from "./LoginForm";

type LoginModalProps = {
  open: boolean;
  onClose: () => void;
  onVerify: (userId: string) => Promise<boolean>;
  onVerifyByEmail?: (
    email: string,
    password: string,
    user_id?: string
  ) => Promise<boolean | { ok: boolean; error?: string }>;
  onSuccess: () => void;
};

export function LoginModal({ open, onClose, onVerify, onVerifyByEmail, onSuccess }: LoginModalProps) {
  const [verifyOverlay, setVerifyOverlay] = useState(false);

  useEffect(() => {
    if (open) {
      document.body.style.overflow = "hidden";
    } else {
      document.body.style.overflow = "";
      setVerifyOverlay(false);
    }
    return () => {
      document.body.style.overflow = "";
    };
  }, [open]);

  useEffect(() => {
    if (!open) return;
    const onKeyDown = (e: KeyboardEvent) => {
      if (e.key === "Escape" && !verifyOverlay) onClose();
    };
    window.addEventListener("keydown", onKeyDown);
    return () => window.removeEventListener("keydown", onKeyDown);
  }, [open, onClose, verifyOverlay]);

  const handleSuccess = () => {
    // 勿先 onClose：父级会把 open 设为 false，弹窗卸载会清掉全屏 loading，应在 reload 前保持验证中态
    onSuccess();
  };

  if (!open) return null;

  return (
    <>
      <div
        className="fixed inset-0 z-50 flex items-center justify-center p-4"
        role="dialog"
        aria-modal="true"
        aria-labelledby="login-modal-title"
      >
        <div
          className="absolute inset-0 bg-black/60 backdrop-blur-sm"
          onClick={verifyOverlay ? undefined : onClose}
        />
        <div
          className="relative w-full max-w-[400px] rounded-2xl border border-[var(--border)] bg-[var(--card)] p-6 shadow-2xl animate__animated animate__fadeIn animate__faster"
          onClick={(e) => e.stopPropagation()}
        >
          <div className="mb-4 flex items-center justify-between">
            <h2 id="login-modal-title" className={styles.sectionTitle} style={{ margin: 0 }}>
              登录
            </h2>
            <button
              type="button"
              onClick={onClose}
              disabled={verifyOverlay}
              className="rounded-lg p-2 text-[var(--muted-foreground)] transition hover:bg-[var(--muted)] hover:text-[var(--foreground)] disabled:pointer-events-none disabled:opacity-40"
              aria-label="关闭"
            >
              <svg className="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
              </svg>
            </button>
          </div>
          <LoginForm
            onVerify={onVerify}
            onVerifyByEmail={onVerifyByEmail}
            onSuccess={handleSuccess}
            onBusyChange={setVerifyOverlay}
            autoFocus
          />
        </div>
      </div>
      {verifyOverlay ? (
        <HomeBootOverlay visible subtitle="正在验证并解锁会员…" />
      ) : null}
    </>
  );
}