src/pages/admin/cai-dat.astro

---
import AdminLayout from '../../layouts/AdminLayout.astro';
import { txasupabase } from '../../lib/txasupabase.js';

const settings = await txasupabase.getSettings();
---

<AdminLayout title="Cấu hình hệ thống">
  <div class="mb-12">
    <h1 class="text-4xl font-black tracking-tighter text-white">Cấu hình Hệ thống</h1>
    <p class="mt-2 text-gray-500">Thiết lập toàn bộ tham số hoạt động của website, máy chủ SMTP email và cơ chế xác thực người dùng.</p>
  </div>

  <div class="glass rounded-[40px] p-8 md:p-10 border border-white/5 space-y-8">
     <!-- Tab Header -->
     <div class="flex flex-wrap gap-3 border-b border-white/5 pb-6">
        <button id="btn-tab-general" class="tab-btn active-tab flex items-center gap-2 rounded-2xl px-6 py-3.5 text-xs font-black uppercase tracking-widest transition-all cursor-pointer">
           <i class="fas fa-desktop"></i> Cấu hình chung
        </button>
        <button id="btn-tab-smtp" class="tab-btn flex items-center gap-2 rounded-2xl px-6 py-3.5 text-xs font-black uppercase tracking-widest transition-all cursor-pointer">
           <i class="fas fa-envelope"></i> SMTP Email
        </button>
        <button id="btn-tab-user" class="tab-btn flex items-center gap-2 rounded-2xl px-6 py-3.5 text-xs font-black uppercase tracking-widest transition-all cursor-pointer">
           <i class="fas fa-user-shield"></i> Người dùng
        </button>
        <button id="btn-tab-social" class="tab-btn flex items-center gap-2 rounded-2xl px-6 py-3.5 text-xs font-black uppercase tracking-widest transition-all cursor-pointer">
           <i class="fas fa-share-alt"></i> Mạng xã hội
        </button>
     </div>

     <!-- Tab Contents Form -->
     <form id="settings-form" class="space-y-8">
        <!-- 1. Tab General -->
        <div id="tab-general" class="tab-content space-y-6">
           <div class="grid gap-6 md:grid-cols-2">
              <div class="space-y-2">
                 <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Tên Website</label>
                 <input type="text" id="site_name" name="site_name" placeholder="Ví dụ: TPHIMX" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
                 <p class="text-[11px] text-gray-500 font-medium">Hiển thị ở hậu tố tiêu đề các trang (Ví dụ: Trang chủ | TPHIMX).</p>
              </div>
              <div class="space-y-2">
                 <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">URL Website</label>
                 <input type="url" id="site_url" name="site_url" placeholder="Ví dụ: https://tphimx.com" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
                 <p class="text-[11px] text-gray-500 font-medium">Đường dẫn đầy đủ dùng để sinh link xác minh tài khoản, khôi phục mật khẩu.</p>
              </div>
           </div>
           <div class="space-y-2">
              <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Mô tả Website (SEO Description)</label>
              <textarea id="site_description" name="site_description" rows="3" placeholder="Mô tả website..." class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all resize-none"></textarea>
           </div>
           <div class="space-y-2">
              <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Từ khóa Website (SEO Keywords)</label>
              <input type="text" id="site_keywords" name="site_keywords" placeholder="Ví dụ: xem phim online, phim vietsub, phim hd, phim moi, phim bo" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
              <p class="text-[11px] text-gray-500 font-medium">Các từ khóa cách nhau bởi dấu phẩy, giúp các công cụ tìm kiếm dễ dàng tìm thấy website.</p>
           </div>
        </div>

        <!-- 2. Tab SMTP -->
        <div id="tab-smtp" class="tab-content hidden space-y-6">
           <div class="grid gap-6 md:grid-cols-3">
              <div class="space-y-2">
                 <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">SMTP Host</label>
                 <input type="text" id="smtp_host" name="smtp_host" placeholder="smtp.gmail.com" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
              </div>
              <div class="space-y-2">
                 <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">SMTP Port</label>
                 <input type="number" id="smtp_port" name="smtp_port" placeholder="465" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
              </div>
              <div class="space-y-2">
                 <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Bảo mật SMTP</label>
                 <select id="smtp_secure" name="smtp_secure" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all cursor-pointer">
                    <option value="SSL">SSL (Khuyên dùng - Port 465)</option>
                    <option value="TLS">TLS (Port 587)</option>
                    <option value="NONE">Không bảo mật</option>
                 </select>
              </div>
           </div>

           <div class="grid gap-6 md:grid-cols-2">
              <div class="space-y-2">
                 <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Tài khoản SMTP</label>
                 <input type="text" id="smtp_user" name="smtp_user" placeholder="gmail_cua_ban@gmail.com" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
              </div>
              <div class="space-y-2">
                 <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Mật khẩu ứng dụng SMTP</label>
                 <input type="password" id="smtp_pass" name="smtp_pass" placeholder="••••••••••••••••" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
              </div>
           </div>

           <div class="grid gap-6 md:grid-cols-2">
              <div class="space-y-2">
                 <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Email người gửi</label>
                 <input type="email" id="smtp_from_email" name="smtp_from_email" placeholder="no-reply@tphimx.com" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
              </div>
              <div class="space-y-2">
                 <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Tên người gửi</label>
                 <input type="text" id="smtp_from_name" name="smtp_from_name" placeholder="TPHIMX" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
              </div>
           </div>

           <div class="pt-4 border-t border-white/5 flex justify-end">
              <button type="button" id="btn-test-smtp" class="flex items-center gap-2 rounded-2xl bg-emerald-500/10 hover:bg-emerald-500 text-emerald-400 hover:text-white border border-emerald-500/20 px-6 py-3.5 text-xs font-black uppercase tracking-widest transition-all active:scale-95 cursor-pointer">
                 <i class="fas fa-paper-plane"></i> Gửi email test
              </button>
           </div>
        </div>

        <!-- 3. Tab User -->
        <div id="tab-user" class="tab-content hidden space-y-6">
           <div class="grid gap-6 md:grid-cols-2">
              <!-- Cho phép đăng ký -->
              <div class="glass-sub rounded-3xl p-6 border border-white/5 flex items-center justify-between">
                 <div>
                    <h3 class="text-sm font-bold text-white">Cho phép Đăng ký tài khoản</h3>
                    <p class="text-xs text-gray-500 mt-1">Cho phép khách truy cập đăng ký tài khoản mới trên trang web.</p>
                 </div>
                 <label class="relative inline-flex items-center cursor-pointer select-none">
                    <input type="checkbox" id="allow_registration" name="allow_registration" class="sr-only peer" />
                    <div class="w-11 h-6 bg-white/10 peer-focus:outline-none rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-gray-300 after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-primary"></div>
                 </label>
              </div>

              <!-- Xác minh email đăng ký -->
              <div id="verify-email-box" class="glass-sub rounded-3xl p-6 border border-white/5 flex items-center justify-between transition-all duration-300">
                 <div>
                    <h3 class="text-sm font-bold text-white">Bắt buộc Xác minh Email</h3>
                    <p class="text-xs text-gray-500 mt-1">Yêu cầu xác nhận qua email trước khi tài khoản được phép sử dụng.</p>
                 </div>
                 <label class="relative inline-flex items-center cursor-pointer select-none">
                    <input type="checkbox" id="require_email_verification" name="require_email_verification" class="sr-only peer" />
                    <div class="w-11 h-6 bg-white/10 peer-focus:outline-none rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-gray-300 after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-primary"></div>
                 </label>
              </div>
           </div>

           <div class="grid gap-6 md:grid-cols-2">
              <!-- Thời gian hết hạn của token xác minh mail (giây) -->
              <div id="expiry-verification-box" class="space-y-2 transition-all duration-300">
                 <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Hết hạn Token Xác minh Email (Giây)</label>
                 <input type="number" id="verification_token_expiry" name="verification_token_expiry" placeholder="3600" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
                 <p class="text-[11px] text-gray-500 font-medium">Thời gian mã xác minh có hiệu lực. Mặc định 3600 giây (1 giờ).</p>
              </div>

              <!-- Thời gian hết hạn của token quên mật khẩu (giây) -->
              <div class="space-y-2">
                 <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Hết hạn Token Quên mật khẩu (Giây)</label>
                 <input type="number" id="reset_password_token_expiry" name="reset_password_token_expiry" placeholder="1800" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
                 <p class="text-[11px] text-gray-500 font-medium">Thời gian link reset mật khẩu có hiệu lực. Mặc định 1800 giây (30 phút).</p>
              </div>
           </div>
        </div>

        <!-- 4. Tab Social -->
         <div id="tab-social" class="tab-content hidden space-y-6">
            <div class="grid gap-6 md:grid-cols-2">
               
               <!-- Facebook Page -->
               <div class="glass-sub rounded-3xl p-6 border border-white/5 space-y-4">
                  <div class="flex items-center justify-between">
                     <div>
                        <h3 class="text-sm font-bold text-white flex items-center gap-2">
                           <i class="fab fa-facebook text-[#1877F2]"></i> Trang Facebook (Page)
                        </h3>
                        <p class="text-xs text-gray-500 mt-1">Bật để hiển thị biểu tượng link Facebook Page dưới footer.</p>
                     </div>
                     <label class="relative inline-flex items-center cursor-pointer select-none">
                        <input type="checkbox" id="social_fb_enable" name="social_fb_enable" class="sr-only peer" />
                        <div class="w-11 h-6 bg-white/10 peer-focus:outline-none rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-gray-300 after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-primary"></div>
                     </label>
                  </div>
                  <div id="box-social_fb_url" class="space-y-2 transition-all duration-300">
                     <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Đường dẫn Facebook Page</label>
                     <input type="url" id="social_fb_url" name="social_fb_url" placeholder="https://www.facebook.com/tphimx" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
                  </div>
               </div>

               <!-- Facebook Group -->
               <div class="glass-sub rounded-3xl p-6 border border-white/5 space-y-4">
                  <div class="flex items-center justify-between">
                     <div>
                        <h3 class="text-sm font-bold text-white flex items-center gap-2">
                           <i class="fas fa-users text-[#1877F2]"></i> Nhóm Facebook (Group)
                        </h3>
                        <p class="text-xs text-gray-500 mt-1">Bật để hiển thị biểu tượng link Facebook Group dưới footer.</p>
                     </div>
                     <label class="relative inline-flex items-center cursor-pointer select-none">
                        <input type="checkbox" id="social_fb_group_enable" name="social_fb_group_enable" class="sr-only peer" />
                        <div class="w-11 h-6 bg-white/10 peer-focus:outline-none rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-gray-300 after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-primary"></div>
                     </label>
                  </div>
                  <div id="box-social_fb_group_url" class="space-y-2 transition-all duration-300">
                     <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Đường dẫn Facebook Group</label>
                     <input type="url" id="social_fb_group_url" name="social_fb_group_url" placeholder="https://www.facebook.com/groups/1819522938713878" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
                  </div>
               </div>

               <!-- Zalo Group -->
               <div class="glass-sub rounded-3xl p-6 border border-white/5 space-y-4">
                  <div class="flex items-center justify-between">
                     <div>
                        <h3 class="text-sm font-bold text-white flex items-center gap-2">
                           <i class="fas fa-comments text-[#0068FF]"></i> Nhóm Zalo (Group)
                        </h3>
                        <p class="text-xs text-gray-500 mt-1">Bật để hiển thị biểu tượng link Zalo Group dưới footer.</p>
                     </div>
                     <label class="relative inline-flex items-center cursor-pointer select-none">
                        <input type="checkbox" id="social_zalo_group_enable" name="social_zalo_group_enable" class="sr-only peer" />
                        <div class="w-11 h-6 bg-white/10 peer-focus:outline-none rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-gray-300 after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-primary"></div>
                     </label>
                  </div>
                  <div id="box-social_zalo_group_url" class="space-y-2 transition-all duration-300">
                     <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Đường dẫn Zalo Group</label>
                     <input type="url" id="social_zalo_group_url" name="social_zalo_group_url" placeholder="https://zalo.me/g/nc4aaozaxnr5fszvnxdb" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
                  </div>
               </div>

               <!-- Telegram -->
               <div class="glass-sub rounded-3xl p-6 border border-white/5 space-y-4">
                  <div class="flex items-center justify-between">
                     <div>
                        <h3 class="text-sm font-bold text-white flex items-center gap-2">
                           <i class="fab fa-telegram text-[#24A1DE]"></i> Telegram Channel / Contact
                        </h3>
                        <p class="text-xs text-gray-500 mt-1">Bật để hiển thị biểu tượng link Telegram dưới footer.</p>
                     </div>
                     <label class="relative inline-flex items-center cursor-pointer select-none">
                        <input type="checkbox" id="social_telegram_enable" name="social_telegram_enable" class="sr-only peer" />
                        <div class="w-11 h-6 bg-white/10 peer-focus:outline-none rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-gray-300 after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-primary"></div>
                     </label>
                  </div>
                  <div id="box-social_telegram_url" class="space-y-2 transition-all duration-300">
                     <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Đường dẫn Telegram</label>
                     <input type="url" id="social_telegram_url" name="social_telegram_url" placeholder="https://t.me/yourchannel" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
                  </div>
               </div>

               <!-- Tiktok -->
               <div class="glass-sub rounded-3xl p-6 border border-white/5 space-y-4">
                  <div class="flex items-center justify-between">
                     <div>
                        <h3 class="text-sm font-bold text-white flex items-center gap-2">
                           <i class="fab fa-tiktok text-white"></i> Kênh TikTok
                        </h3>
                        <p class="text-xs text-gray-500 mt-1">Bật để hiển thị biểu tượng link TikTok dưới footer.</p>
                     </div>
                     <label class="relative inline-flex items-center cursor-pointer select-none">
                        <input type="checkbox" id="social_tiktok_enable" name="social_tiktok_enable" class="sr-only peer" />
                        <div class="w-11 h-6 bg-white/10 peer-focus:outline-none rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-gray-300 after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-primary"></div>
                     </label>
                  </div>
                  <div id="box-social_tiktok_url" class="space-y-2 transition-all duration-300">
                     <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Đường dẫn TikTok</label>
                     <input type="url" id="social_tiktok_url" name="social_tiktok_url" placeholder="https://www.tiktok.com/@yourchannel" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
                  </div>
               </div>

               <!-- Instagram -->
               <div class="glass-sub rounded-3xl p-6 border border-white/5 space-y-4">
                  <div class="flex items-center justify-between">
                     <div>
                        <h3 class="text-sm font-bold text-white flex items-center gap-2">
                           <i class="fab fa-instagram text-[#E1306C]"></i> Kênh Instagram
                        </h3>
                        <p class="text-xs text-gray-500 mt-1">Bật để hiển thị biểu tượng link Instagram dưới footer.</p>
                     </div>
                     <label class="relative inline-flex items-center cursor-pointer select-none">
                        <input type="checkbox" id="social_instagram_enable" name="social_instagram_enable" class="sr-only peer" />
                        <div class="w-11 h-6 bg-white/10 peer-focus:outline-none rounded-full peer peer-checked:after:translate-x-full peer-checked:after:border-white after:content-[''] after:absolute after:top-[2px] after:left-[2px] after:bg-gray-300 after:border-gray-300 after:border after:rounded-full after:h-5 after:w-5 after:transition-all peer-checked:bg-primary"></div>
                     </label>
                  </div>
                  <div id="box-social_instagram_url" class="space-y-2 transition-all duration-300">
                     <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500">Đường dẫn Instagram</label>
                     <input type="url" id="social_instagram_url" name="social_instagram_url" placeholder="https://www.instagram.com/yourusername" class="w-full bg-[#12141d] border border-white/5 rounded-2xl px-5 py-4 text-sm text-white focus:outline-none focus:border-primary/50 transition-all" />
                  </div>
               </div>

            </div>
         </div>

         <!-- Submit Button -->
        <div class="pt-8 border-t border-white/5 flex justify-end">
           <button type="submit" class="flex items-center gap-2 rounded-2xl bg-primary px-8 py-4 text-xs font-black uppercase tracking-widest text-dark hover:scale-105 transition-all shadow-[0_0_20px_var(--primary)] cursor-pointer">
              <i class="fas fa-save"></i> Lưu cài đặt
           </button>
        </div>
     </form>
  </div>
</AdminLayout>

<script is:inline define:vars={{ initialSettings: settings }}>
  let currentTab = 'general';

  function checkSmtpTestButtonStatus() {
    const testSmtpBtn = document.getElementById('btn-test-smtp');
    if (!testSmtpBtn) return;
    
    const userVal = document.getElementById('smtp_user')?.value?.trim() || '';
    const passVal = document.getElementById('smtp_pass')?.value?.trim() || '';
    const isModified = userVal !== (initialSettings.smtp_user || '') || passVal !== (initialSettings.smtp_pass || '');
    
    if (!initialSettings.smtp_user || !initialSettings.smtp_pass) {
      testSmtpBtn.setAttribute('disabled', 'true');
      testSmtpBtn.style.opacity = '0.4';
      testSmtpBtn.style.cursor = 'not-allowed';
      testSmtpBtn.setAttribute('data-txatooltip', 'Vui lòng nhập tài khoản và mật khẩu SMTP rồi bấm Lưu cài đặt trước khi gửi thử!');
    } else if (isModified) {
      testSmtpBtn.setAttribute('disabled', 'true');
      testSmtpBtn.style.opacity = '0.4';
      testSmtpBtn.style.cursor = 'not-allowed';
      testSmtpBtn.setAttribute('data-txatooltip', 'Có cấu hình SMTP thay đổi chưa lưu! Vui lòng bấm Lưu cài đặt trước khi gửi thử.');
    } else {
      testSmtpBtn.removeAttribute('disabled');
      testSmtpBtn.style.opacity = '';
      testSmtpBtn.style.cursor = 'pointer';
      testSmtpBtn.removeAttribute('data-txatooltip');
    }
    
    if (window.initTxaTooltips) {
      window.initTxaTooltips();
    }
  }

  function initTabs() {
    const tabs = ['general', 'smtp', 'user', 'social'];
    
    tabs.forEach(tab => {
      const btn = document.getElementById(`btn-tab-${tab}`);
      const content = document.getElementById(`tab-${tab}`);
      
      if (btn && content) {
        btn.onclick = (e) => {
          e.preventDefault();
          // Hide all contents & remove active class from all buttons
          tabs.forEach(t => {
             const b = document.getElementById(`btn-tab-${t}`);
             const c = document.getElementById(`tab-${t}`);
             b?.classList.remove('active-tab');
             c?.classList.add('hidden');
          });

          // Show clicked tab
          btn.classList.add('active-tab');
          content.classList.remove('hidden');
          currentTab = tab;
        };
      }
    });
  }

  function fillForm() {
    const form = document.getElementById('settings-form');
    if (!form) return;

    // Text inputs
    const keys = [
      'site_name', 'site_url', 'site_description', 'site_keywords',
      'smtp_host', 'smtp_port', 'smtp_secure', 'smtp_user', 'smtp_pass', 'smtp_from_email', 'smtp_from_name',
      'verification_token_expiry', 'reset_password_token_expiry',
      'social_fb_url', 'social_fb_group_url', 'social_zalo_group_url', 'social_telegram_url', 'social_tiktok_url', 'social_instagram_url'
    ];

    keys.forEach(key => {
      const input = document.getElementById(key);
      if (input && initialSettings[key] !== undefined) {
        input.value = initialSettings[key];
      }
    });

    // Checkbox inputs (Boolean)
    const boolKeys = [
      'allow_registration', 'require_email_verification',
      'social_fb_enable', 'social_fb_group_enable', 'social_zalo_group_enable', 'social_telegram_enable', 'social_tiktok_enable', 'social_instagram_enable'
    ];
    boolKeys.forEach(key => {
      const input = document.getElementById(key);
      if (input && initialSettings[key] !== undefined) {
        input.checked = initialSettings[key];
      }
    });

    updateVisibility();
    checkSmtpTestButtonStatus();
  }

  function updateVisibility() {
    const allowReg = document.getElementById('allow_registration');
    const verifyBox = document.getElementById('verify-email-box');
    const requireVerify = document.getElementById('require_email_verification');
    const expiryBox = document.getElementById('expiry-verification-box');

    // 1. Cho phép đăng ký
    if (allowReg && verifyBox) {
      if (allowReg.checked) {
        verifyBox.classList.remove('opacity-40', 'pointer-events-none');
        const chk = verifyBox.querySelector('input');
        if (chk) chk.disabled = false;
      } else {
        verifyBox.classList.add('opacity-40', 'pointer-events-none');
        const chk = verifyBox.querySelector('input');
        if (chk) {
          chk.checked = false;
          chk.disabled = true;
        }
      }
    }

    // 2. Bắt buộc xác minh email
    if (requireVerify && expiryBox) {
      if (requireVerify.checked && (!allowReg || allowReg.checked)) {
        expiryBox.classList.remove('opacity-40', 'pointer-events-none');
        const inp = expiryBox.querySelector('input');
        if (inp) inp.disabled = false;
      } else {
        expiryBox.classList.add('opacity-40', 'pointer-events-none');
        const inp = expiryBox.querySelector('input');
        if (inp) inp.disabled = true;
      }
    }

    // 3. Mạng xã hội (Ẩn ô nhập link khi chưa bật)
    const socials = ['social_fb', 'social_fb_group', 'social_zalo_group', 'social_telegram', 'social_tiktok', 'social_instagram'];
    socials.forEach(s => {
      const chk = document.getElementById(`${s}_enable`);
      const box = document.getElementById(`box-${s}_url`);
      if (chk && box) {
        if (chk.checked) {
          box.classList.remove('hidden');
          const inp = box.querySelector('input');
          if (inp) inp.disabled = false;
        } else {
          box.classList.add('hidden');
          const inp = box.querySelector('input');
          if (inp) inp.disabled = true;
        }
      }
    });
  }

  function setupEventListeners() {
    const form = document.getElementById('settings-form');
    
    // Toggle change events
    const allowReg = document.getElementById('allow_registration');
    const requireVerify = document.getElementById('require_email_verification');

    allowReg?.addEventListener('change', updateVisibility);
    requireVerify?.addEventListener('change', updateVisibility);

    // Watch for Social Switches change events
    const socials = ['social_fb', 'social_fb_group', 'social_zalo_group', 'social_telegram', 'social_tiktok', 'social_instagram'];
    socials.forEach(s => {
      document.getElementById(`${s}_enable`)?.addEventListener('change', updateVisibility);
    });

    // Watch for input changes to dynamically disable SMTP test button if unsaved changes exist
    document.getElementById('smtp_user')?.addEventListener('input', checkSmtpTestButtonStatus);
    document.getElementById('smtp_pass')?.addEventListener('input', checkSmtpTestButtonStatus);

    // Save Settings
    form?.addEventListener('submit', async (e) => {
      e.preventDefault();
      const btn = form.querySelector('button[type="submit"]');
      if (btn) btn.disabled = true;

      const formData = {};
      
      // Text and Select elements
      const inputs = form.querySelectorAll('input[type="text"], input[type="url"], input[type="number"], input[type="password"], textarea, select');
      inputs.forEach(inp => {
        const name = inp.getAttribute('name');
        if (name) {
          let val = inp.value;
          if (inp.getAttribute('type') === 'number') {
            val = Number(val);
          }
          formData[name] = val;
        }
      });

      // Toggles
      const checkboxes = form.querySelectorAll('input[type="checkbox"]');
      checkboxes.forEach(chk => {
        const name = chk.getAttribute('name');
        if (name) {
          formData[name] = chk.checked;
        }
      });

      try {
        const res = await fetch('/api/admin/settings', {
          method: 'POST',
          headers: { 'Content-Type': 'application/json' },
          body: JSON.stringify(formData)
        });
        const data = await res.json();
        if (res.ok) {
          window.txatoast.success(data.message);
          
          // Cập nhật lại initialSettings và trạng thái nút test SMTP
          initialSettings.smtp_user = formData.smtp_user;
          initialSettings.smtp_pass = formData.smtp_pass;
          checkSmtpTestButtonStatus();
        } else {
          window.txatoast.error(data.error);
        }
      } catch(e) {
        window.txatoast.error('Lỗi lưu cấu hình máy chủ!');
      } finally {
        if (btn) btn.disabled = false;
      }
    });

    // Test SMTP Email connection
    const testSmtpBtn = document.getElementById('btn-test-smtp');
    testSmtpBtn?.addEventListener('click', () => {
      // Gather current smtp settings to test connection before save
      const smtpOptions = {
        smtp_host: document.getElementById('smtp_host').value.trim(),
        smtp_port: Number(document.getElementById('smtp_port').value.trim()),
        smtp_secure: document.getElementById('smtp_secure').value,
        smtp_user: document.getElementById('smtp_user').value.trim(),
        smtp_pass: document.getElementById('smtp_pass').value.trim(),
        smtp_from_email: document.getElementById('smtp_from_email').value.trim(),
        smtp_from_name: document.getElementById('smtp_from_name').value.trim(),
        site_url: document.getElementById('site_url').value.trim(),
        site_name: document.getElementById('site_name').value.trim()
      };

      if (!smtpOptions.smtp_host || !smtpOptions.smtp_port || !smtpOptions.smtp_user || !smtpOptions.smtp_pass) {
        window.txatoast.warning('Vui lòng điền đầy đủ cấu hình SMTP (Host, Port, Tài khoản, Mật khẩu) trước khi gửi thử!');
        return;
      }

      window.txamodal.show({
        title: 'Gửi thử Email Test',
        message: `
          <div class="space-y-4 text-left">
             <p class="text-xs text-gray-500">Mã kiểm thử sẽ gửi một Email thử nghiệm mẫu bằng cấu hình bạn đang điền phía trên.</p>
             <div>
                <label class="block text-[10px] font-black uppercase tracking-widest text-gray-500 mb-1">Địa chỉ Email nhận</label>
                <input type="email" id="test-recipient-email" placeholder="vi_du@gmail.com" class="w-full bg-[#12141d] border border-white/5 rounded-xl px-4 py-2.5 text-sm text-white focus:outline-none focus:border-primary/50" />
             </div>
          </div>`,
        type: 'success',
        confirmText: 'Gửi ngay',
        onConfirm: async () => {
          const testEmailInput = document.getElementById('test-recipient-email');
          const testEmail = testEmailInput ? testEmailInput.value.trim() : '';

          if (!testEmail) {
            window.txatoast.error('Email nhận không được để trống!');
            return false;
          }

          // Nút đổi trạng thái (Loading state)
          const confirmBtn = document.getElementById('txamodal-confirm');
          const cancelBtn = document.getElementById('txamodal-cancel');
          const originalConfirmHtml = confirmBtn ? confirmBtn.innerHTML : 'Gửi ngay';

          if (confirmBtn) {
            confirmBtn.innerHTML = '<i class="fas fa-circle-notch fa-spin mr-2"></i> Đang gửi...';
            confirmBtn.disabled = true;
            confirmBtn.style.opacity = '0.6';
            confirmBtn.style.cursor = 'not-allowed';
          }
          if (cancelBtn) {
            cancelBtn.disabled = true;
            cancelBtn.style.opacity = '0.5';
            cancelBtn.style.cursor = 'not-allowed';
          }

          window.txatoast.info('Đang bắt đầu gửi thư thử nghiệm...');
          try {
            const res = await fetch('/api/admin/test-email', {
              method: 'POST',
              headers: { 'Content-Type': 'application/json' },
              body: JSON.stringify({
                toEmail: testEmail,
                smtpOptions
              })
            });
            const data = await res.json();
            if (res.ok) {
              window.txatoast.success(data.message);
              
              // Reset state lại nút và đóng modal
              if (confirmBtn) {
                confirmBtn.innerHTML = originalConfirmHtml;
                confirmBtn.disabled = false;
                confirmBtn.style.opacity = '';
                confirmBtn.style.cursor = 'pointer';
              }
              if (cancelBtn) {
                cancelBtn.disabled = false;
                cancelBtn.style.opacity = '';
                cancelBtn.style.cursor = 'pointer';
              }
              window.txamodal.hide();
              return true;
            } else {
              window.txatoast.error(data.error);
              
              // Reset state lại nút (không đóng modal để họ sửa lại email hoặc kiểm tra lại cấu hình)
              if (confirmBtn) {
                confirmBtn.innerHTML = originalConfirmHtml;
                confirmBtn.disabled = false;
                confirmBtn.style.opacity = '';
                confirmBtn.style.cursor = 'pointer';
              }
              if (cancelBtn) {
                cancelBtn.disabled = false;
                cancelBtn.style.opacity = '';
                cancelBtn.style.cursor = 'pointer';
              }
              return false;
            }
          } catch(e) {
            window.txatoast.error('Lỗi kết nối máy chủ gửi thử!');
            
            // Reset state lại nút
            if (confirmBtn) {
              confirmBtn.innerHTML = originalConfirmHtml;
              confirmBtn.disabled = false;
              confirmBtn.style.opacity = '';
              confirmBtn.style.cursor = 'pointer';
            }
            if (cancelBtn) {
              cancelBtn.disabled = false;
              cancelBtn.style.opacity = '';
              cancelBtn.style.cursor = 'pointer';
            }
            return false;
          }
        }
      });
    });
  }

  function init() {
    initTabs();
    fillForm();
    setupEventListeners();
  }

  document.addEventListener('astro:page-load', init);
</script>

<style>
  .glass {
    background: rgba(18, 20, 29, 0.4);
    backdrop-filter: blur(40px) saturate(200%);
  }
  .glass-sub {
    background: rgba(255, 255, 255, 0.02);
  }
  .tab-btn {
    color: #6b7280;
    border: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(255, 255, 255, 0.02);
  }
  .tab-btn:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.05);
  }
  .active-tab {
    background: #7c3aed !important;
    color: #ffffff !important;
    border-color: #7c3aed !important;
    box-shadow: 0 0 15px rgba(124, 58, 237, 0.4);
  }
</style>