'use client';

import { useEffect, useState } from 'react';
import { authApi } from '@/lib/api';

interface HeaderProps {
  title: string;
  subtitle?: string;
  imageUrl?: string;
  actions?: React.ReactNode;
  maxWidth?: 'max-w-5xl' | 'max-w-7xl';
}

export default function Header({ title, subtitle, imageUrl, actions, maxWidth = 'max-w-7xl' }: HeaderProps) {
  const [isAdmin, setIsAdmin] = useState(false);

  useEffect(() => {
    let cancelled = false;
    (async () => {
      try {
        const who = await authApi.whoami();
        if (!cancelled) setIsAdmin(who.role === 'admin');
      } catch {
        if (!cancelled) setIsAdmin(false);
      }
    })();
    return () => { cancelled = true; };
  }, []);

  return (
    <>
      {isAdmin && (
        <div className="sticky top-0 z-50 bg-amber-50 dark:bg-amber-900/40 border-b border-amber-200/70 dark:border-amber-800/60 backdrop-blur">
          <div className={`${maxWidth} mx-auto py-3 px-4 sm:px-6 lg:px-8`}>
            <p className="text-center text-sm text-amber-900 dark:text-amber-100">
              ⚠️ Atenção: visualizar listas públicas pode estragar surpresas
            </p>
          </div>
        </div>
      )}

      <div className="relative overflow-hidden">
        {/* Distant atmospheric haze */}
        <div
          aria-hidden
          className="pointer-events-none absolute -top-16 -right-12 w-80 h-80 rounded-full opacity-50 blur-3xl"
          style={{ background: 'radial-gradient(circle, var(--halo-1), transparent 65%)' }}
        />
        <div
          aria-hidden
          className="pointer-events-none absolute -bottom-16 -left-10 w-72 h-72 rounded-full opacity-50 blur-3xl"
          style={{ background: 'radial-gradient(circle, var(--halo-3), transparent 60%)' }}
        />

        <div className={`${maxWidth} mx-auto relative py-14 px-4 sm:py-20 sm:px-6 lg:px-8`}>
          <div className="flex flex-col md:flex-row items-center md:items-start gap-8">
            {imageUrl && (
              <div className="md:w-56 flex-shrink-0">
                <img
                  src={imageUrl}
                  alt={title}
                  className="w-56 h-56 object-cover rounded-3xl shadow-lifted ring-1 ring-[color:var(--border)]"
                />
              </div>
            )}
            <div className={imageUrl ? 'flex-1 text-left' : 'flex-1 text-center'}>
              <h1 className="text-5xl sm:text-6xl lg:text-7xl font-bold text-[color:var(--ink)] mb-4 leading-tight">
                {title}
              </h1>
              {subtitle && (
                <p className={`text-xl sm:text-2xl text-[color:var(--ink-soft)] mb-6 ${imageUrl ? '' : 'max-w-3xl mx-auto'}`}>
                  {subtitle}
                </p>
              )}
              {actions && (
                <div className={`flex flex-col sm:flex-row items-center gap-3 ${imageUrl ? 'justify-start' : 'justify-center'}`}>
                  {actions}
                </div>
              )}
            </div>
          </div>
        </div>
      </div>
    </>
  );
}