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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
<title>Nine7频道助手</title>
<script src="https://telegram.org/js/telegram-web-app.js"></script>
<style>
:root {
  --bg: var(--tg-theme-bg-color, #1a1a2e);
  --card: var(--tg-theme-secondary-bg-color, #16213e);
  --text: var(--tg-theme-text-color, #eaeaea);
  --hint: var(--tg-theme-hint-color, #8a8a9a);
  --accent: var(--tg-theme-button-color, #0f3460);
  --btn-text: var(--tg-theme-button-text-color, #ffffff);
  --link: var(--tg-theme-link-color, #e94560);
  --danger: #e94560;
  --success: #27ae60;
  --radius: 14px;
  --shadow: 0 2px 16px rgba(0,0,0,.18);
}
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif; background:var(--bg); color:var(--text); min-height:100vh; padding-bottom:80px; overflow-x:hidden; }
.header { background:linear-gradient(135deg,#0f3460 0%,#533483 50%,#e94560 100%); padding:20px 20px 24px; text-align:center; position:relative; overflow:hidden; }
.header::after { content:''; position:absolute; bottom:-20px; left:-10%; right:-10%; height:40px; background:var(--bg); border-radius:50% 50% 0 0; }
.header h1 { font-size:20px; color:#fff; font-weight:700; }
.header p { font-size:12px; color:rgba(255,255,255,.7); margin-top:4px; }
.header-content { display:flex; align-items:center; justify-content:center; gap:14px; }
.avatar { width:48px; height:48px; border-radius:50%; border:2px solid rgba(255,255,255,.3); object-fit:cover; }
.avatar-placeholder { width:48px; height:48px; border-radius:50%; border:2px solid rgba(255,255,255,.3); background:rgba(255,255,255,.15); display:flex; align-items:center; justify-content:center; font-size:22px; }
.header-text { text-align:left; }
.header-text h1 { font-size:18px; }
.header-text p { font-size:11px; margin-top:2px; }
.header-greeting { font-size:13px; color:rgba(255,255,255,.85); margin-top:2px; font-weight:500; }
.bottom-nav { position:fixed; bottom:0; left:0; right:0; display:flex; background:var(--card); border-top:1px solid rgba(255,255,255,.06); z-index:100; padding-bottom:env(safe-area-inset-bottom); }
.nav-item { flex:1; text-align:center; padding:8px 0 6px; cursor:pointer; transition:all .2s; -webkit-tap-highlight-color:transparent; }
.nav-item .icon { font-size:20px; }
.nav-item .label { font-size:10px; color:var(--hint); margin-top:2px; }
.nav-item.active .label { color:var(--link); font-weight:600; }
.nav-item.active .icon { transform:scale(1.15); }
.page { display:none; padding:16px; animation:fadeUp .3s; }
.page.active { display:block; }
@keyframes fadeUp { from{opacity:0;transform:translateY(12px)} to{opacity:1;transform:translateY(0)} }
.card { background:var(--card); border-radius:var(--radius); padding:16px; margin-bottom:12px; box-shadow:var(--shadow); position:relative; border:1px solid rgba(255,255,255,.04); }
.card-title { font-size:14px; font-weight:600; margin-bottom:8px; display:flex; align-items:center; gap:8px; }
.card-body { font-size:13px; color:var(--hint); line-height:1.7; }
.card-body code { background:rgba(255,255,255,.08); padding:2px 6px; border-radius:4px; font-size:12px; color:var(--link); }
.card-body .ch-name { color:var(--text); font-weight:600; font-size:12px; }
.card-actions { display:flex; gap:8px; margin-top:12px; flex-wrap:wrap; }
.stat-row { display:flex; justify-content:space-between; padding:8px 0; border-bottom:1px solid rgba(255,255,255,.04); }
.stat-row:last-child { border:none; }
.stat-val { color:var(--link); font-weight:600; }
.btn { display:inline-flex; align-items:center; gap:6px; padding:10px 18px; border-radius:10px; border:none; font-size:13px; font-weight:600; cursor:pointer; transition:all .2s; -webkit-tap-highlight-color:transparent; }
.btn:active { transform:scale(.96); }
.btn-primary { background:linear-gradient(135deg,#0f3460,#533483); color:#fff; }
.btn-danger { background:rgba(233,69,96,.15); color:var(--danger); }
.btn-sm { padding:6px 12px; font-size:12px; border-radius:8px; }
.btn-ghost { background:rgba(255,255,255,.06); color:var(--text); }
.btn-success { background:rgba(39,174,96,.15); color:var(--success); }
.btn-block { width:100%; justify-content:center; }
.fab { position:fixed; bottom:80px; right:20px; width:52px; height:52px; border-radius:50%; background:linear-gradient(135deg,#e94560,#533483); color:#fff; font-size:24px; display:flex; align-items:center; justify-content:center; box-shadow:0 4px 20px rgba(233,69,96,.4); cursor:pointer; z-index:50; transition:all .2s; border:none; }
.fab:active { transform:scale(.9); }
.tool-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.tool-card { background:var(--card); border-radius:var(--radius); padding:20px 14px; text-align:center; cursor:pointer; transition:all .2s; border:1px solid rgba(255,255,255,.04); box-shadow:var(--shadow); }
.tool-card:active { transform:scale(.96); }
.tool-card .t-icon { font-size:28px; margin-bottom:8px; }
.tool-card .t-name { font-size:13px; font-weight:600; }
.tool-card .t-desc { font-size:11px; color:var(--hint); margin-top:4px; }
.modal-overlay { position:fixed; inset:0; background:rgba(0,0,0,.65); z-index:200; display:none; align-items:flex-end; justify-content:center; animation:fadeIn .2s; }
.modal-overlay.open { display:flex; }
@keyframes fadeIn { from{opacity:0} to{opacity:1} }
@keyframes slideUp { from{transform:translateY(100%)} to{transform:translateY(0)} }
.modal { background:var(--bg); width:100%; max-width:500px; max-height:88vh; border-radius:20px 20px 0 0; padding:20px; overflow-y:auto; animation:slideUp .3s; }
.modal-title { font-size:17px; font-weight:700; margin-bottom:16px; display:flex; align-items:center; gap:8px; }
.modal-close { margin-left:auto; background:rgba(255,255,255,.08); border:none; color:var(--hint); width:30px; height:30px; border-radius:50%; font-size:16px; cursor:pointer; }
.form-group { margin-bottom:14px; }
.form-label { font-size:12px; color:var(--hint); margin-bottom:6px; display:block; font-weight:500; }
.form-input,.form-select { width:100%; padding:12px 14px; background:var(--card); border:1px solid rgba(255,255,255,.08); border-radius:10px; color:var(--text); font-size:14px; outline:none; transition:border .2s; }
.form-input:focus { border-color:var(--link); }
.form-input::placeholder { color:var(--hint); }
.form-hint { font-size:11px; color:var(--hint); margin-top:4px; }
.channel-picker { display:flex; flex-wrap:wrap; gap:8px; margin-top:8px; }
.ch-chip { padding:6px 12px; background:rgba(255,255,255,.06); border-radius:20px; font-size:12px; cursor:pointer; transition:all .2s; border:1px solid transparent; }
.ch-chip:active,.ch-chip.picked { border-color:var(--link); background:rgba(233,69,96,.1); }
.segment { display:flex; background:var(--card); border-radius:10px; padding:3px; margin-bottom:16px; }
.seg-btn { flex:1; text-align:center; padding:8px; font-size:13px; border-radius:8px; cursor:pointer; transition:all .2s; color:var(--hint); border:none; background:transparent; }
.seg-btn.active { background:linear-gradient(135deg,#0f3460,#533483); color:#fff; font-weight:600; }
.toast { position:fixed; top:20px; left:50%; transform:translateX(-50%) translateY(-80px); background:var(--card); color:var(--text); padding:12px 24px; border-radius:12px; font-size:13px; z-index:999; box-shadow:0 4px 24px rgba(0,0,0,.3); transition:transform .3s; border:1px solid rgba(255,255,255,.06); }
.toast.show { transform:translateX(-50%) translateY(0); }
.toast.success { border-left:3px solid var(--success); }
.toast.error { border-left:3px solid var(--danger); }
.empty { text-align:center; padding:40px 20px; color:var(--hint); }
.empty .e-icon { font-size:48px; margin-bottom:12px; }
.empty .e-text { font-size:14px; }
.badge { display:inline-block; padding:2px 8px; border-radius:6px; font-size:11px; font-weight:600; }
.badge-info { background:rgba(15,52,96,.4); color:#5dade2; }
.badge-warn { background:rgba(233,69,96,.15); color:var(--danger); }
.spinner { width:24px; height:24px; border:3px solid rgba(255,255,255,.1); border-top-color:var(--link); border-radius:50%; animation:spin .6s linear infinite; margin:20px auto; }
@keyframes spin { to{transform:rotate(360deg)} }
.target-row { background:rgba(255,255,255,.03); border:1px solid rgba(255,255,255,.06); border-radius:10px; padding:12px; margin-bottom:8px; }
.target-row .form-label { margin-top:8px; }
.target-row .form-label:first-child { margin-top:0; }
.target-mini { display:flex; justify-content:space-between; align-items:center; padding:10px 12px; background:rgba(255,255,255,.03); border:1px solid rgba(255,255,255,.06); border-radius:10px; margin-bottom:8px; font-size:13px; }
.target-mini .info { color:var(--hint); flex:1; overflow:hidden; text-overflow:ellipsis; }
.target-mini .info .ch-name { color:var(--text); font-weight:600; }

/* 格式工具栏 */
.format-toolbar { display:flex; gap:4px; margin-bottom:6px; flex-wrap:wrap; }
.format-toolbar button { padding:6px 10px; border:1px solid rgba(255,255,255,.1); background:rgba(255,255,255,.05); color:var(--text); border-radius:6px; font-size:13px; cursor:pointer; transition:all .15s; min-width:34px; }
.format-toolbar button:active { background:rgba(233,69,96,.25); transform:scale(.92); }
.format-toolbar button:hover { background:rgba(255,255,255,.1); }

/* 预览区 */
.preview-box { background:var(--card); border:1px solid rgba(255,255,255,.08); border-radius:10px; padding:12px 14px; font-size:14px; min-height:50px; line-height:1.6; word-break:break-word; color:var(--text); }
.preview-box .tg-spoiler { background:var(--hint); color:transparent; border-radius:4px; padding:0 3px; cursor:pointer; transition:all .2s; }
.preview-box .tg-spoiler:hover,.preview-box .tg-spoiler.revealed { color:var(--text); background:rgba(255,255,255,.1); }
.preview-box blockquote { border-left:3px solid var(--hint); padding-left:8px; margin:6px 0; color:var(--hint); }
.preview-box pre { background:rgba(0,0,0,.3); border-radius:6px; padding:8px; font-size:12px; overflow-x:auto; }
.preview-box code { background:rgba(255,255,255,.08); padding:1px 5px; border-radius:4px; font-size:12px; color:var(--link); }
.preview-box a { color:var(--link); text-decoration:underline; }

/* 媒体预览 */
.media-preview-box { margin-top:8px; position:relative; }
.media-preview-box img,.media-preview-box video { max-width:100%; max-height:200px; border-radius:8px; display:block; }
.media-preview-box .media-clear { position:absolute; top:4px; right:4px; background:rgba(0,0,0,.7); color:#fff; border:none; border-radius:50%; width:24px; height:24px; font-size:14px; cursor:pointer; display:flex; align-items:center; justify-content:center; }
</style>
</head>
<body>

<div class="header">
  <div class="header-content">
    <div id="avatarContainer"><div class="avatar-placeholder">👤</div></div>
    <div class="header-text">
      <h1>Nine7<img src="https://lin7zhi.pages.dev/file/1777856634364_nine7.png"
         style="width:22px;height:22px;vertical-align:middle;margin-right:6px;border-radius:6px;filter:drop-shadow(0 0 6px rgba(233,69,96,.4))"
         onerror="this.style.display='none'">频道助手</h1>
      <p class="header-greeting" id="headerGreeting">你好！</p>
      <p id="headerSub">加载中...</p>
    </div>
  </div>
</div>

<div class="toast" id="toast"></div>

<!-- ===== 首页 ===== -->
<div class="page active" id="page-home">
  <div class="card"><div class="card-title">⚙️ 系统状态</div><div class="card-body" id="statusInfo"><div class="spinner"></div></div></div>
  <div class="card"><div class="card-title">📊 概览</div><div class="card-body" id="overview"><div class="spinner"></div></div></div>
</div>

<!-- ===== 同步页 ===== -->
<div class="page" id="page-sync"><div id="syncList"></div><button class="fab" onclick="openModal('modalAddSync')">＋</button></div>

<!-- ===== 工具箱 ===== -->
<div class="page" id="page-tools">
  <div class="tool-grid">
    <div class="tool-card" onclick="openModal('modalBtnNew')"><div class="t-icon">🆕</div><div class="t-name">发按钮消息</div><div class="t-desc">支持媒体+格式+预览</div></div>
    <div class="tool-card" onclick="openModal('modalBtnOld')"><div class="t-icon">🔘</div><div class="t-name">改旧按钮</div><div class="t-desc">给旧消息加/改/删按钮</div></div>
    <div class="tool-card" onclick="openModal('modalGenDir')"><div class="t-icon">🗂️</div><div class="t-name">手动目录</div><div class="t-desc">扫描频道生成标签目录</div></div>
    <div class="tool-card" onclick="openModal('modalReplace')"><div class="t-icon">🔄</div><div class="t-name">替换标签</div><div class="t-desc">批量替换/删除标签</div></div>
    <div class="tool-card" onclick="openModal('modalBackup')"><div class="t-icon">🚀</div><div class="t-name">智能备份</div><div class="t-desc">跨频道全量搬运</div></div>
    <div class="tool-card" onclick="openModal('modalBtnMulti')"><div class="t-icon">🔗</div><div class="t-name">多按钮消息</div><div class="t-desc">添加多个按钮行</div></div>
    <div class="tool-card" onclick="openModal('modalBatchCreate')"><div class="t-icon">🏢</div><div class="t-name">批量建频道</div><div class="t-desc">一键批量建频道</div></div>
    <div class="tool-card" onclick="openModal('modalBackupMembers')"><div class="t-icon">👥</div><div class="t-name">备份成员</div><div class="t-desc">导出频道成员ID和用户名</div></div>
  </div>
</div>

<!-- ===== 任务页 ===== -->
<div class="page" id="page-tasks">
  <div class="segment">
    <button class="seg-btn active" onclick="switchTaskTab(this,'statsList')">📈 统计任务</button>
    <button class="seg-btn" onclick="switchTaskTab(this,'dirsList')">📂 目录任务</button>
  </div>
  <div id="statsList"></div>
  <div id="dirsList" style="display:none"></div>
  <button class="fab" onclick="openAddTask()">＋</button>
</div>

<!-- ===== 地址簿页 ===== -->
<div class="page" id="page-addr"><div id="addrList"></div><button class="fab" onclick="openModal('modalAddAddr')">＋</button></div>

<!-- ===== 底栏 ===== -->
<div class="bottom-nav">
  <div class="nav-item active" onclick="switchPage('home',this)"><div class="icon">🏠</div><div class="label">首页</div></div>
  <div class="nav-item" onclick="switchPage('sync',this)"><div class="icon">🔄</div><div class="label">同步</div></div>
  <div class="nav-item" onclick="switchPage('tools',this)"><div class="icon">🧰</div><div class="label">工具箱</div></div>
  <div class="nav-item" onclick="switchPage('tasks',this)"><div class="icon">📊</div><div class="label">任务</div></div>
  <div class="nav-item" onclick="switchPage('addr',this)"><div class="icon">📔</div><div class="label">地址簿</div></div>
</div>

<!-- ========== 同步组弹窗 ========== -->
<div class="modal-overlay" id="modalAddSync"><div class="modal">
  <div class="modal-title">➕ 添加同步组 <button class="modal-close" onclick="closeModal('modalAddSync')">✕</button></div>
  <div class="form-group"><label class="form-label">同步组名称 (可选)</label><input class="form-input" id="syncName" placeholder="如: 主频道分发"></div>
  <div class="form-group"><label class="form-label">源频道 ID</label><input class="form-input" id="syncSrc" placeholder="-100xxxxxxxxxx"><div class="channel-picker" id="pickerSyncSrc"></div></div>
  <p class="form-label" style="font-weight:700;color:var(--text)">目标频道 (可多个)</p>
  <div id="syncTgtContainer"><div class="form-group"><input class="form-input sync-tgt" placeholder="-100xxxxxxxxxx"><div class="channel-picker"></div></div></div>
  <button class="btn btn-ghost btn-sm" onclick="addSyncTgtRow()" style="margin-bottom:12px">➕ 添加目标频道</button>
  <button class="btn btn-primary btn-block" onclick="addSyncGroup()">✅ 创建同步组</button>
</div></div>

<!-- ========== 地址簿弹窗 ========== -->
<div class="modal-overlay" id="modalAddAddr"><div class="modal">
  <div class="modal-title">📔 添加频道 <button class="modal-close" onclick="closeModal('modalAddAddr')">✕</button></div>
  <div class="form-group"><label class="form-label">频道 ID</label><input class="form-input" id="addrId" placeholder="-100xxxxxxxxxx"></div>
  <div class="form-group"><label class="form-label">备注名称</label><input class="form-input" id="addrName" placeholder="如: 主频道"></div>
  <button class="btn btn-primary btn-block" onclick="addChannel()">✅ 保存</button>
</div></div>

<!-- ========== 🆕 发按钮消息（媒体+格式+预览）========== -->
<div class="modal-overlay" id="modalBtnNew"><div class="modal">
  <div class="modal-title">🆕 发送消息 <button class="modal-close" onclick="closeModal('modalBtnNew')">✕</button></div>
  <div class="form-group">
    <label class="form-label">频道 ID</label>
    <input class="form-input" id="bnCh" placeholder="-100xxxxxxxxxx">
    <div class="channel-picker" id="pickerBnCh"></div>
  </div>
  <div class="form-group">
    <label class="form-label">📎 附加媒体文件 (可选)</label>
    <input type="file" id="bnMedia" accept="image/*,video/*,.gif" class="form-input" style="padding:8px" onchange="previewMedia(this,'bnMediaPreview')">
    <div class="form-hint">支持图片/视频/GIF，不选则发纯文本消息</div>
    <div class="media-preview-box" id="bnMediaPreview"></div>
  </div>
  <div class="form-group">
    <label class="form-label">消息正文 (支持 HTML 格式)</label>
    <div class="format-toolbar">
      <button type="button" onclick="insertFmt('b')" title="粗体"><b>B</b></button>
      <button type="button" onclick="insertFmt('i')" title="斜体"><i>I</i></button>
      <button type="button" onclick="insertFmt('u')" title="下划线"><u>U</u></button>
      <button type="button" onclick="insertFmt('s')" title="删除线"><s>S</s></button>
      <button type="button" onclick="insertFmt('code')" title="行内代码">&lt;/&gt;</button>
      <button type="button" onclick="insertFmt('tg-spoiler')" title="遮罩文字">👁</button>
      <button type="button" onclick="insertLink()" title="超链接">🔗</button>
      <button type="button" onclick="insertFmt('blockquote')" title="引用块">❝</button>
      <button type="button" onclick="insertFmt('pre')" title="代码块">PRE</button>
    </div>
    <textarea class="form-input" id="bnText" rows="5" placeholder="输入消息内容，点击上方按钮快速插入格式..." oninput="updatePreview()"></textarea>
  </div>
  <div class="form-group">
    <label class="form-label">📱 实时预览</label>
    <div class="preview-box" id="bnPreview"><span style="color:var(--hint)">输入内容后预览将显示在这里</span></div>
  </div>
  <div class="form-group"><label class="form-label">按钮文字 (可选，留空则无按钮)</label><input class="form-input" id="bnBtnText" placeholder="🔗 点击进入主群"></div>
  <div class="form-group"><label class="form-label">按钮链接 (可选)</label><input class="form-input" id="bnUrl" placeholder="https://..." type="url"></div>
  <button class="btn btn-primary btn-block" onclick="sendBtnNew()">🚀 发送</button>
</div></div>

<!-- ========== 改旧按钮 ========== -->
<div class="modal-overlay" id="modalBtnOld"><div class="modal">
  <div class="modal-title">🔘 给旧消息加/改按钮 <button class="modal-close" onclick="closeModal('modalBtnOld')">✕</button></div>
  <div class="form-group"><label class="form-label">频道 ID</label><input class="form-input" id="boCh" placeholder="-100xxxxxxxxxx"><div class="channel-picker" id="pickerBoCh"></div></div>
  <div class="form-group"><label class="form-label">消息 ID 或链接</label><input class="form-input" id="boMsg" placeholder="消息 ID 或链接"></div>
  <div class="form-group"><label class="form-label">按钮文字 (输入"删除"以移除按钮)</label><input class="form-input" id="boBtnText" placeholder="按钮文字 或 删除"></div>
  <div class="form-group"><label class="form-label">跳转链接</label><input class="form-input" id="boUrl" placeholder="https://..." type="url"></div>
  <button class="btn btn-primary btn-block" onclick="sendBtnOld()">✅ 提交</button>
</div></div>

<!-- ========== 多按钮消息 ========== -->
<div class="modal-overlay" id="modalBtnMulti"><div class="modal">
  <div class="modal-title">🔗 多按钮消息 <button class="modal-close" onclick="closeModal('modalBtnMulti')">✕</button></div>
  <div class="form-group"><label class="form-label">频道 ID</label><input class="form-input" id="bmCh" placeholder="-100xxxxxxxxxx"><div class="channel-picker" id="pickerBmCh"></div></div>
  <div class="form-group"><label class="form-label">消息正文 (支持 HTML)</label><textarea class="form-input" id="bmText" rows="3" placeholder="消息内容..."></textarea></div>
  <div id="bmBtnsContainer"><div class="form-group" style="display:flex;gap:8px"><input class="form-input" placeholder="按钮文字" style="flex:1"><input class="form-input" placeholder="https://链接" style="flex:1"></div></div>
  <button class="btn btn-ghost btn-sm" onclick="addBtnRow()" style="margin-bottom:12px">➕ 再加一行按钮</button>
  <button class="btn btn-primary btn-block" onclick="sendBtnMulti()">🚀 发送</button>
</div></div>

<!-- ========== 手动目录 ========== -->
<div class="modal-overlay" id="modalGenDir"><div class="modal">
  <div class="modal-title">🗂️ 生成手动目录 <button class="modal-close" onclick="closeModal('modalGenDir')">✕</button></div>
  <div class="form-group"><label class="form-label">频道 ID</label><input class="form-input" id="gdCh" placeholder="-100xxxxxxxxxx"><div class="channel-picker" id="pickerGdCh"></div></div>
  <p class="form-hint">⚠️ 扫描可能需要较长时间，结果将发送到机器人对话中</p>
  <button class="btn btn-primary btn-block" style="margin-top:12px" onclick="genDir()">🔍 开始扫描</button>
</div></div>

<!-- ========== 替换标签 ========== -->
<div class="modal-overlay" id="modalReplace"><div class="modal">
  <div class="modal-title">🔄 批量替换标签 <button class="modal-close" onclick="closeModal('modalReplace')">✕</button></div>
  <div class="form-group"><label class="form-label">频道 ID</label><input class="form-input" id="rpCh" placeholder="-100xxxxxxxxxx"><div class="channel-picker" id="pickerRpCh"></div></div>
  <div class="form-group"><label class="form-label">旧标签 (带 #)</label><input class="form-input" id="rpOld" placeholder="#旧标签"></div>
  <div class="form-group"><label class="form-label">新标签 (输入"删除"则彻底移除)</label><input class="form-input" id="rpNew" placeholder="#新标签 或 删除"></div>
  <button class="btn btn-primary btn-block" onclick="replaceTag()">🚀 开始替换</button>
</div></div>

<!-- ========== 智能备份（多目标）========== -->
<div class="modal-overlay" id="modalBackup"><div class="modal">
  <div class="modal-title">🚀 智能备份 <button class="modal-close" onclick="closeModal('modalBackup')">✕</button></div>
  <div id="backupGroupBtns" style="margin-bottom:12px"></div>
  <hr style="border-color:rgba(255,255,255,.06);margin:12px 0">
  <p class="form-label" style="margin-bottom:8px">✏️ 手动指定通道:</p>
  <div class="form-group"><label class="form-label">源频道 ID</label><input class="form-input" id="bkSrc" placeholder="-100xxxxxxxxxx"><div class="channel-picker" id="pickerBkSrc"></div></div>
  <p class="form-label" style="font-weight:700;color:var(--text)">目标频道 (可多个)</p>
  <div id="bkTgtContainer"><div class="form-group"><input class="form-input bk-tgt" placeholder="-100xxxxxxxxxx"><div class="channel-picker"></div></div></div>
  <button class="btn btn-ghost btn-sm" onclick="addBkTgtRow()" style="margin-bottom:12px">➕ 添加目标频道</button>
  <div class="form-group"><label class="form-label">源频道最新消息链接</label><input class="form-input" id="bkLink" placeholder="https://t.me/..."></div>
  <div class="form-group" style="display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.03);padding:14px;border-radius:10px;border:1px solid rgba(255,255,255,.06)">
    <div>
      <div style="font-size:13px;font-weight:600">🔄 洗文件 MD5</div>
      <div style="font-size:11px;color:var(--hint);margin-top:2px">下载→改哈希→重传，速度较慢但文件唯一</div>
    </div>
    <label style="position:relative;display:inline-block;width:48px;height:26px;flex-shrink:0;margin-left:12px">
      <input type="checkbox" id="bkWash" style="opacity:0;width:0;height:0">
      <span style="position:absolute;cursor:pointer;inset:0;background:rgba(255,255,255,.12);border-radius:26px;transition:.3s"></span>
      <span id="bkWashDot" style="position:absolute;left:3px;top:3px;width:20px;height:20px;background:#fff;border-radius:50%;transition:.3s"></span>
    </label>
  </div>
  <button class="btn btn-primary btn-block" onclick="startBackup()">🚀 开始备份</button>
</div></div>

<!-- ========== 创建统计任务 ========== -->
<div class="modal-overlay" id="modalAddStat"><div class="modal">
  <div class="modal-title">📈 创建统计任务 <button class="modal-close" onclick="closeModal('modalAddStat')">✕</button></div>
  <div class="form-group"><label class="form-label">任务名称</label><input class="form-input" id="stName" placeholder="日常早报统计"></div>
  <div class="form-group"><label class="form-label">频道 ID</label><input class="form-input" id="stCh" placeholder="-100xxxxxxxxxx"><div class="channel-picker" id="pickerStCh"></div></div>
  <div class="form-group"><label class="form-label">消息 ID 或链接</label><input class="form-input" id="stMsg" placeholder="311"></div>
  <div class="form-group"><label class="form-label">统计表标题</label><input class="form-input" id="stTitle" placeholder="🔥 霸榜热评区:"></div>
  <div class="form-group"><label class="form-label">显示前几名</label><input class="form-input" id="stTopN" placeholder="10" type="number"></div>
  <div class="form-group"><label class="form-label">触发标签 (带 #)</label><input class="form-input" id="stTrig" placeholder="#更新"></div>
  <div class="form-group"><label class="form-label">更新频率 (分钟)</label><input class="form-input" id="stIntv" placeholder="15" type="number"></div>
  <div class="form-group"><label class="form-label">寿命期限 (天)</label><input class="form-input" id="stDura" placeholder="7" type="number"></div>
  <div class="form-group"><label class="form-label">屏蔽名单 (空格隔开，无则留空)</label><input class="form-input" id="stBlack" placeholder="名字A 名字B"></div>
  <div class="form-group"><label class="form-label">屏蔽区标题 (留空则默认)</label><input class="form-input" id="stBlTitle" placeholder="🚫本月轮换限制："></div>
  <div class="form-group">
    <label class="form-label">📥 上期榜单消息 ID (可选，自动提取名字加入屏蔽)</label>
    <input class="form-input" id="stExtractMsg" placeholder="留空则跳过">
    <div class="form-hint">💡 输入上一期统计消息 ID 或链接，系统自动提取上榜名字加入屏蔽名单</div>
  </div>
  <button class="btn btn-primary btn-block" onclick="addStatTask()">✅ 创建任务</button>
</div></div>

<!-- ========== 创建自动目录 ========== -->
<div class="modal-overlay" id="modalAddDir"><div class="modal">
  <div class="modal-title">🗂️ 创建自动目录 <button class="modal-close" onclick="closeModal('modalAddDir')">✕</button></div>
  <div class="form-group"><label class="form-label">任务名称</label><input class="form-input" id="drName" placeholder="主频道自动目录"></div>
  <div class="form-group"><label class="form-label">🔍 扫描频道 ID</label><input class="form-input" id="drScanCh" placeholder="-100xxxxxxxxxx"><div class="channel-picker" id="pickerDrScan"></div></div>
  <hr style="border-color:rgba(255,255,255,.06);margin:12px 0">
  <p class="form-label" style="font-weight:700;color:var(--text);margin-bottom:8px">📌 目标频道</p>
  <div id="drTargetsContainer">
    <div class="target-row" data-idx="0">
      <label class="form-label">目标 1 - 频道 ID</label>
      <input class="form-input dr-tgt-ch" placeholder="-100xxxxxxxxxx">
      <div class="channel-picker"></div>
      <label class="form-label">目标 1 - 消息 ID</label>
      <input class="form-input dr-tgt-msg" placeholder="消息ID">
    </div>
  </div>
  <button class="btn btn-ghost btn-sm" onclick="addDirTargetRow()" style="margin-bottom:12px">➕ 添加更多目标</button>
  <hr style="border-color:rgba(255,255,255,.06);margin:12px 0">
  <div class="form-group"><label class="form-label">屏蔽标签 (空格隔开，无则留空)</label><input class="form-input" id="drBlack" placeholder="#通知 #避雷"></div>
  <button class="btn btn-primary btn-block" onclick="addDirTask()">✅ 创建</button>
</div></div>

<!-- ========== 添加目录目标 ========== -->
<div class="modal-overlay" id="modalAddDirTarget"><div class="modal">
  <div class="modal-title">➕ 添加目标频道 <button class="modal-close" onclick="closeModal('modalAddDirTarget')">✕</button></div>
  <div class="form-group"><label class="form-label">目标频道 ID</label><input class="form-input" id="adtCh" placeholder="-100xxxxxxxxxx"><div class="channel-picker" id="pickerAdtCh"></div></div>
  <div class="form-group"><label class="form-label">承载消息 ID</label><input class="form-input" id="adtMsg" placeholder="消息ID"></div>
  <button class="btn btn-primary btn-block" onclick="submitAddDirTarget()">✅ 添加</button>
</div></div>

<!-- ========== 移除目录目标 ========== -->
<div class="modal-overlay" id="modalRmDirTarget"><div class="modal">
  <div class="modal-title">➖ 移除目标频道 <button class="modal-close" onclick="closeModal('modalRmDirTarget')">✕</button></div>
  <div id="rmDirTargetList"></div>
</div></div>

<!-- ========== 编辑弹窗 ========== -->
<div class="modal-overlay" id="modalEdit"><div class="modal">
  <div class="modal-title" id="editTitle">✏️ 编辑 <button class="modal-close" onclick="closeModal('modalEdit')">✕</button></div>
  <div class="form-group">
    <label class="form-label" id="editLabel">新值</label>
    <input class="form-input" id="editVal">
    <div class="channel-picker" id="pickerEditVal"></div>
  </div>
  <button class="btn btn-primary btn-block" onclick="submitEdit()">✅ 确认修改</button>
</div></div>

<!-- ========== 批量建频道 ========== -->
<div class="modal-overlay" id="modalBatchCreate"><div class="modal">
  <div class="modal-title">🏢 批量创建频道 <button class="modal-close" onclick="closeModal('modalBatchCreate')">✕</button></div>
  <div class="form-group">
    <label class="form-label">频道名称列表 (每行一个)</label>
    <textarea class="form-input" id="bcNames" rows="5" placeholder="频道名称A&#10;频道名称B&#10;频道名称C"></textarea>
  </div>
  <div class="form-group">
    <label class="form-label">每个名称创建数量</label>
    <input class="form-input" id="bcCount" type="number" value="1" min="1" placeholder="例如 9 → 名1..名9">
    <div class="form-hint">💡 数量 1 不加后缀，数量 3 则创建：名称1、名称2、名称3</div>
  </div>
  <div class="form-group">
    <label class="form-label">自动拉入的用户/机器人 ID</label>
    <input class="form-input" id="bcUsers" placeholder="@your_bot 123456789">
    <div class="form-hint">💡 空格、逗号或换行隔开</div>
  </div>
  <p class="form-hint" style="color:var(--danger)">⚠️ 耗时较长，请到 Bot 对话查看进度</p>
  <button class="btn btn-primary btn-block" style="margin-top:12px" onclick="startBatchCreate()">🚀 开始批量创建</button>
</div></div>

<!-- ========== 🆕 备份频道成员 ========== -->
<div class="modal-overlay" id="modalBackupMembers"><div class="modal">
  <div class="modal-title">👥 备份频道成员 <button class="modal-close" onclick="closeModal('modalBackupMembers')">✕</button></div>
  <div class="form-group">
    <label class="form-label">频道 / 群组 ID</label>
    <input class="form-input" id="bmChId" placeholder="-100xxxxxxxxxx">
    <div class="channel-picker" id="pickerBmChId"></div>
  </div>
  <div class="form-hint" style="margin-bottom:12px">
    📋 将导出所有成员的 UserID、Username、昵称等信息为 CSV 文件<br>
    ☁️ 文件将同时上传 WebDAV (<code>members/</code> 目录) 并发送到 Bot 对话
  </div>
  <button class="btn btn-primary btn-block" onclick="backupMembers()">📥 开始导出</button>
</div></div>

<script>
const tg = window.Telegram.WebApp;
tg.ready(); tg.expand(); tg.enableClosingConfirmation();

const API = '/api';
const initData = tg.initData || '';
const user = tg.initDataUnsafe?.user;
let userData = null;
let currentTaskTab = 'stats';
let editCtx = {};
let dirTargetCtx = {};

if (user) {
  const ac = document.getElementById('avatarContainer');
  if (user.photo_url) {
    ac.innerHTML = `<img class="avatar" src="${user.photo_url}" onerror="this.outerHTML='<div class=\\'avatar-placeholder\\'>${user.first_name?user.first_name[0]:'👤'}</div>'">`;
  } else {
    ac.innerHTML = `<div class="avatar-placeholder">${user.first_name?user.first_name[0]:'👤'}</div>`;
  }
  const h = new Date().getHours();
  let g = '🌙 晚上好';
  if(h>=5&&h<12) g='🌅 早上好'; else if(h>=12&&h<14) g='☀️ 中午好'; else if(h>=14&&h<18) g='🌤 下午好';
  document.getElementById('headerGreeting').textContent = `${g}，${user.first_name}！`;
  document.getElementById('headerSub').textContent = `UID: ${user.id}`;
} else {
  document.getElementById('headerGreeting').textContent = '';
  document.getElementById('headerSub').textContent = '未检测到用户';
}

function chLabel(id) {
  if(!id) return '<code>未设置</code>';
  const ab = userData?.address_book||{};
  const name = ab[id]||ab[String(id)];
  return name ? `<span class="ch-name">📔${name}</span> <code>${id}</code>` : `<code>${id}</code>`;
}
function chNameOnly(id) {
  if(!id) return '未设置';
  const ab = userData?.address_book||{};
  const name = ab[id]||ab[String(id)];
  return name ? `📔${name} (${id})` : String(id);
}

function toast(msg, type='success') {
  const t = document.getElementById('toast');
  t.textContent = msg;
  t.className = `toast show ${type}`;
  setTimeout(()=>t.className='toast', 2800);
}

async function api(path, method='GET', body=null) {
  const opts = { method, headers:{'Content-Type':'application/json','X-Init-Data':initData} };
  if(body) opts.body = JSON.stringify(body);
  return (await fetch(API+path, opts)).json();
}

function switchPage(name, el) {
  document.querySelectorAll('.page').forEach(p=>p.classList.remove('active'));
  document.querySelectorAll('.nav-item').forEach(n=>n.classList.remove('active'));
  document.getElementById('page-'+name).classList.add('active');
  el.classList.add('active');
  if(name==='sync') renderSync();
  if(name==='tasks') renderTasks();
  if(name==='addr') renderAddr();
  if(name==='home') loadHome();
}

function openModal(id) {
  document.getElementById(id).classList.add('open');
  renderChannelPickers();
  if(id==='modalBackup') renderBackupGroups();
}
function closeModal(id) { document.getElementById(id).classList.remove('open'); }
document.querySelectorAll('.modal-overlay').forEach(o=>{
  o.addEventListener('click',e=>{if(e.target===o) o.classList.remove('open');});
});

/* ====== 频道快选 ====== */
function renderChannelPickers() {
  if(!userData) return;
  const ab = userData.address_book||{};
  document.querySelectorAll('.channel-picker').forEach(picker => {
    picker.innerHTML = '';
    Object.entries(ab).forEach(([cid,name])=>{
      const chip = document.createElement('div');
      chip.className = 'ch-chip';
      chip.textContent = `📔 ${name}`;
      chip.onclick = () => {
        const inp = picker.previousElementSibling;
        if(inp && (inp.classList.contains('form-input')||inp.tagName==='INPUT')) inp.value = cid;
        chip.classList.add('picked');
        setTimeout(()=>chip.classList.remove('picked'),600);
        try{tg.HapticFeedback.impactOccurred('light')}catch(e){}
      };
      picker.appendChild(chip);
    });
  });
}

/* ====== 🆕 格式工具栏 ====== */
function insertFmt(tag) {
  const ta = document.getElementById('bnText');
  const start = ta.selectionStart, end = ta.selectionEnd;
  const sel = ta.value.substring(start, end);
  const wrapped = `<${tag}>${sel || '文本'}</${tag}>`;
  ta.value = ta.value.substring(0, start) + wrapped + ta.value.substring(end);
  ta.focus();
  const newPos = start + tag.length + 2 + (sel||'文本').length;
  ta.setSelectionRange(start + tag.length + 2, newPos);
  updatePreview();
  try{tg.HapticFeedback.impactOccurred('light')}catch(e){}
}

function insertLink() {
  const ta = document.getElementById('bnText');
  const start = ta.selectionStart, end = ta.selectionEnd;
  const sel = ta.value.substring(start, end);
  const linkText = sel || '链接文字';
  const wrapped = `<a href="https://">${linkText}</a>`;
  ta.value = ta.value.substring(0, start) + wrapped + ta.value.substring(end);
  ta.focus();
  const urlStart = start + 9; // position after href="
  ta.setSelectionRange(urlStart, urlStart + 8);
  updatePreview();
}

function updatePreview() {
  const text = document.getElementById('bnText').value;
  const preview = document.getElementById('bnPreview');
  if(!text.trim()) {
    preview.innerHTML = '<span style="color:var(--hint)">输入内容后预览将显示在这里</span>';
    return;
  }
  // 安全地渲染预览（只允许 Telegram 支持的标签）
  let html = text;
  // 将换行转为 <br>
  html = html.replace(/\n/g, '<br>');
  preview.innerHTML = html;
  // 遮罩文字点击切换
  preview.querySelectorAll('.tg-spoiler').forEach(el=>{
    el.onclick = ()=> el.classList.toggle('revealed');
  });
}

/* ====== 🆕 媒体预览 ====== */
function previewMedia(input, previewId) {
  const container = document.getElementById(previewId);
  container.innerHTML = '';
  if(!input.files||!input.files[0]) return;
  const file = input.files[0];
  const url = URL.createObjectURL(file);
  let el;
  if(file.type.startsWith('video/')) {
    el = document.createElement('video');
    el.src = url; el.controls = true; el.muted = true;
  } else {
    el = document.createElement('img');
    el.src = url;
  }
  const clearBtn = document.createElement('button');
  clearBtn.className = 'media-clear';
  clearBtn.innerHTML = '✕';
  clearBtn.onclick = ()=>{ input.value=''; container.innerHTML=''; };
  container.appendChild(el);
  container.appendChild(clearBtn);
}

/* ====== 首页 ====== */
async function loadHome() {
  const data = await api('/data');
  if(!data.ok) return;
  userData = data.user;
  document.getElementById('statusInfo').innerHTML = `
    <div class="stat-row"><span>☁️ 云端路径</span><span class="stat-val" style="font-size:11px;max-width:160px;overflow:hidden;text-overflow:ellipsis">${data.webdav_url||'未设置'}</span></div>
    <div class="stat-row"><span>🗺️ 消息映射</span><span class="stat-val">${data.msg_count} 条</span></div>
    <div class="stat-row"><span>🤖 Userbot</span><span class="stat-val">${data.userbot?'✅ 在线':'❌ 离线'}</span></div>`;
  const g=userData.groups||[], s=userData.stats_tasks||[], d=userData.dir_tasks||[], ab=userData.address_book||{};
  document.getElementById('overview').innerHTML = `
    <div class="stat-row"><span>🔄 同步组</span><span class="stat-val">${g.length}</span></div>
    <div class="stat-row"><span>📈 统计任务</span><span class="stat-val">${s.length}</span></div>
    <div class="stat-row"><span>📂 目录任务</span><span class="stat-val">${d.length}</span></div>
    <div class="stat-row"><span>📔 地址簿</span><span class="stat-val">${Object.keys(ab).length} 个频道</span></div>`;
}

/* ====== 同步组 ====== */
function addSyncTgtRow() {
  const c = document.getElementById('syncTgtContainer');
  const div = document.createElement('div');
  div.className = 'form-group';
  div.innerHTML = `<input class="form-input sync-tgt" placeholder="-100xxxxxxxxxx"><div class="channel-picker"></div>`;
  c.appendChild(div);
  renderChannelPickers();
}

function renderSync() {
  const list = document.getElementById('syncList');
  const groups = userData?.groups||[];
  if(!groups.length) {
    list.innerHTML='<div class="empty"><div class="e-icon">🔄</div><div class="e-text">暂无同步任务<br>点击右下角 + 创建</div></div>';
    return;
  }
  list.innerHTML = groups.map((g,i)=>{
    let tgts = g.tgt; if(typeof tgts==='string') tgts=[tgts];
    const tgtHtml = (tgts||[]).map(t=>`<div style="margin-left:8px">▪️ ${chLabel(t)}</div>`).join('');
    const nm = g.name||`同步组 ${i+1}`;
    return `<div class="card">
      <div class="card-title">📦 ${nm}</div>
      <div class="card-body">源频道: ${chLabel(g.src)}<br>目标频道:<br>${tgtHtml}</div>
      <div class="card-actions"><button class="btn btn-danger btn-sm" onclick="delSync(${i})">🗑 删除</button></div>
    </div>`;
  }).join('');
}

async function addSyncGroup() {
  const name = document.getElementById('syncName').value.trim();
  const src = document.getElementById('syncSrc').value.trim();
  const tgts = [];
  document.querySelectorAll('#syncTgtContainer .sync-tgt').forEach(i=>{const v=i.value.trim();if(v)tgts.push(v);});
  if(!src||!tgts.length) return toast('请填写源频道和至少一个目标','error');
  const res = await api('/groups','POST',{name,src,tgt:tgts});
  if(res.ok){toast('✅ 同步组已创建');closeModal('modalAddSync');userData=res.user;renderSync();}
  else toast(res.msg||'失败','error');
}

async function delSync(idx) {
  tg.showConfirm('确认删除该同步组？',async(ok)=>{
    if(!ok)return;
    const res=await api(`/groups/${idx}`,'DELETE');
    if(res.ok){toast('已删除');userData=res.user;renderSync();}
  });
}

/* ====== 地址簿 ====== */
function renderAddr() {
  const list=document.getElementById('addrList'), ab=userData?.address_book||{}, entries=Object.entries(ab);
  if(!entries.length){list.innerHTML='<div class="empty"><div class="e-icon">📔</div><div class="e-text">暂无保存的频道<br>点击右下角 + 添加</div></div>';return;}
  list.innerHTML=entries.map(([c,n])=>`
    <div class="card"><div class="card-title">📔 ${n}</div><div class="card-body"><code>${c}</code></div>
    <div class="card-actions"><button class="btn btn-danger btn-sm" onclick="delAddr('${c}')">🗑 删除</button></div></div>`).join('');
}
async function addChannel() {
  const id=document.getElementById('addrId').value.trim(), name=document.getElementById('addrName').value.trim();
  if(!id||!name) return toast('请填写完整','error');
  const res=await api('/channels','POST',{id,name});
  if(res.ok){toast('✅ 已添加');closeModal('modalAddAddr');userData=res.user;renderAddr();renderChannelPickers();}
}
async function delAddr(cid) {
  tg.showConfirm('确认删除？',async(ok)=>{
    if(!ok)return;
    const res=await api(`/channels/${encodeURIComponent(cid)}`,'DELETE');
    if(res.ok){toast('已删除');userData=res.user;renderAddr();renderChannelPickers();}
  });
}

/* ====== 任务 ====== */
function switchTaskTab(el,listId) {
  document.querySelectorAll('.seg-btn').forEach(b=>b.classList.remove('active'));
  el.classList.add('active');
  currentTaskTab=listId==='statsList'?'stats':'dirs';
  document.getElementById('statsList').style.display=listId==='statsList'?'':'none';
  document.getElementById('dirsList').style.display=listId==='dirsList'?'':'none';
}
function openAddTask() { openModal(currentTaskTab==='stats'?'modalAddStat':'modalAddDir'); }
function renderTasks() { renderStatsTasks(); renderDirsTasks(); }

function renderStatsTasks() {
  const list=document.getElementById('statsList'), tasks=userData?.stats_tasks||[];
  if(!tasks.length){list.innerHTML='<div class="empty"><div class="e-icon">📈</div><div class="e-text">暂无统计任务</div></div>';return;}
  list.innerHTML=tasks.map((t,i)=>`
    <div class="card">
      <div class="card-title">🎯 ${t.task_name||'未命名'} <span class="badge badge-info">每${t.interval||60}分钟</span></div>
      <div class="card-body">
        频道: ${chLabel(t.channel_id)} | 消息: <code>${t.msg_id}</code><br>
        表头: <code>${t.table_title||''}</code><br>
        触发: <code>${t.trigger_tag||''}</code> | 前 <code>${t.top_n||10}</code> 名 | 寿命 <code>${t.duration||7}</code> 天<br>
        🚫 屏蔽: <code>${(t.stats_blacklist||[]).join(', ')||'无'}</code><br>
        📝 屏蔽标题: <code>${t.blacklist_title||'默认'}</code>
      </div>
      <div class="card-actions">
        <button class="btn btn-ghost btn-sm" onclick="editField('stats',${i},'task_name','任务名称')">✏️名称</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('stats',${i},'channel_id','频道ID',true)">✏️频道</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('stats',${i},'msg_id','消息ID')">✏️消息</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('stats',${i},'table_title','表头标题')">✏️表头</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('stats',${i},'trigger_tag','触发标签')">✏️标签</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('stats',${i},'top_n','上榜名额')">🏆名额</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('stats',${i},'interval','更新频率(分钟)')">⏱频率</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('stats',${i},'duration','寿命(天)')">⏳寿命</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('stats',${i},'add_stats_bl','添加屏蔽(空格隔开)')">🚫加屏蔽</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('stats',${i},'rm_stats_bl','解除屏蔽(空格隔开)')">✅删屏蔽</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('stats',${i},'blacklist_title','屏蔽区标题')">📝屏蔽标题</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('stats',${i},'extract_blacklist','上期榜单消息ID')">📥提取屏蔽</button>
        <button class="btn btn-danger btn-sm" onclick="delTask('stats',${i})">🗑 删除</button>
      </div>
    </div>`).join('');
}

function renderDirsTasks() {
  const list=document.getElementById('dirsList'), tasks=userData?.dir_tasks||[];
  if(!tasks.length){list.innerHTML='<div class="empty"><div class="e-icon">📂</div><div class="e-text">暂无目录任务</div></div>';return;}
  list.innerHTML=tasks.map((t,i)=>{
    const targets=t.targets||[];
    const tgtHtml=targets.length?targets.map((tgt,ti)=>
      `<div class="target-mini"><span class="info">${ti+1}. ${chLabel(tgt.channel_id)} | 消息 <code>${tgt.msg_id}</code></span></div>`
    ).join(''):'<span style="color:var(--hint)">暂无目标</span>';
    return `<div class="card">
      <div class="card-title">🗂️ ${t.task_name||'未命名'} <span class="badge badge-info">每${t.interval||15}分钟</span></div>
      <div class="card-body">
        🔍 扫描: ${chLabel(t.scan_id)}<br>
        📌 目标频道:<br>${tgtHtml}
        屏蔽: <code>${(t.blacklist||[]).join(', ')||'无'}</code><br>
        已收录: <code>${(t.tags_cache||[]).length}</code> 个标签
      </div>
      <div class="card-actions">
        <button class="btn btn-success btn-sm" onclick="openAddTargetModal(${i})">➕目标</button>
        <button class="btn btn-ghost btn-sm" onclick="openRmTargetModal(${i})">➖目标</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('dirs',${i},'add_blacklist','追加屏蔽标签')">➕屏蔽</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('dirs',${i},'rm_blacklist','移除屏蔽标签')">➖屏蔽</button>
        <button class="btn btn-ghost btn-sm" onclick="editField('dirs',${i},'interval','扫描频率(分钟)')">⏱频率</button>
        <button class="btn btn-danger btn-sm" onclick="delTask('dirs',${i})">🗑 删除</button>
      </div>
    </div>`;
  }).join('');
}

async function addStatTask() {
  const body = {
    task_name:document.getElementById('stName').value.trim(),
    channel_id:document.getElementById('stCh').value.trim(),
    msg_id:document.getElementById('stMsg').value.trim(),
    table_title:document.getElementById('stTitle').value.trim(),
    top_n:parseInt(document.getElementById('stTopN').value)||10,
    trigger_tag:document.getElementById('stTrig').value.trim(),
    interval:parseInt(document.getElementById('stIntv').value)||15,
    duration:parseInt(document.getElementById('stDura').value)||7,
    stats_blacklist:document.getElementById('stBlack').value.trim(),
    blacklist_title:document.getElementById('stBlTitle').value.trim()||'🚫本月轮换限制：',
    extract_from_msg:document.getElementById('stExtractMsg').value.trim()
  };
  if(!body.task_name||!body.channel_id||!body.msg_id) return toast('请填写必填项','error');
  if(!body.trigger_tag.startsWith('#')) return toast('触发标签必须以#开头','error');
  const res=await api('/stats','POST',body);
  if(res.ok){
    toast('✅ 统计任务已创建');closeModal('modalAddStat');userData=res.user;renderStatsTasks();
    if(body.extract_from_msg) toast('🔍 正在后台提取屏蔽名单...');
  } else toast(res.msg||'创建失败','error');
}

let dirTargetCounter = 1;
function addDirTargetRow() {
  dirTargetCounter++;
  const c = document.getElementById('drTargetsContainer');
  const div = document.createElement('div');
  div.className = 'target-row';
  div.innerHTML = `
    <label class="form-label">目标 ${dirTargetCounter} - 频道 ID</label>
    <input class="form-input dr-tgt-ch" placeholder="-100xxxxxxxxxx">
    <div class="channel-picker"></div>
    <label class="form-label">目标 ${dirTargetCounter} - 消息 ID</label>
    <input class="form-input dr-tgt-msg" placeholder="消息ID">`;
  c.appendChild(div);
  renderChannelPickers();
}

async function addDirTask() {
  const name=document.getElementById('drName').value.trim();
  const scanCh=document.getElementById('drScanCh').value.trim();
  const bl=document.getElementById('drBlack').value.trim();
  const rows=document.querySelectorAll('#drTargetsContainer .target-row');
  const targets=[];
  rows.forEach(r=>{
    const ch=r.querySelector('.dr-tgt-ch').value.trim();
    const msg=r.querySelector('.dr-tgt-msg').value.trim();
    if(ch&&msg) targets.push({channel_id:ch,msg_id:msg});
  });
  if(!name||!scanCh||!targets.length) return toast('请填写完整','error');
  const res=await api('/dirs','POST',{task_name:name,scan_id:scanCh,targets:targets,blacklist:bl?bl.split(/\s+/):[]});
  if(res.ok){toast('✅ 目录任务已创建');closeModal('modalAddDir');userData=res.user;renderDirsTasks();}
  else toast(res.msg||'创建失败','error');
}

function openAddTargetModal(idx) {
  dirTargetCtx={idx};
  document.getElementById('adtCh').value='';
  document.getElementById('adtMsg').value='';
  openModal('modalAddDirTarget');
}
async function submitAddDirTarget() {
  const ch=document.getElementById('adtCh').value.trim();
  const msg=document.getElementById('adtMsg').value.trim();
  if(!ch||!msg) return toast('请填写完整','error');
  const res=await api(`/dirs/${dirTargetCtx.idx}`,'PUT',{field:'add_target',value:JSON.stringify({channel_id:ch,msg_id:msg})});
  if(res.ok){toast('✅ 目标已添加');closeModal('modalAddDirTarget');userData=res.user;renderDirsTasks();}
  else toast(res.msg||'失败','error');
}

function openRmTargetModal(idx) {
  dirTargetCtx={idx};
  const task=userData.dir_tasks[idx];
  const targets=task?.targets||[];
  const list=document.getElementById('rmDirTargetList');
  if(!targets.length){list.innerHTML='<p style="color:var(--hint)">暂无目标频道</p>';openModal('modalRmDirTarget');return;}
  list.innerHTML=targets.map((tgt,ti)=>`
    <div class="target-mini">
      <span class="info">${ti+1}. ${chNameOnly(tgt.channel_id)} | 消息 ${tgt.msg_id}</span>
      <button class="btn btn-danger btn-sm" onclick="rmDirTarget(${idx},${ti})">❌</button>
    </div>`).join('');
  openModal('modalRmDirTarget');
}
async function rmDirTarget(taskIdx,targetIdx) {
  const res=await api(`/dirs/${taskIdx}`,'PUT',{field:'rm_target',value:String(targetIdx)});
  if(res.ok){toast('✅ 已移除');userData=res.user;renderDirsTasks();openRmTargetModal(taskIdx);}
  else toast(res.msg||'失败','error');
}

async function delTask(type,idx) {
  tg.showConfirm('确认删除此任务?',async(ok)=>{
    if(!ok)return;
    const path=type==='stats'?`/stats/${idx}`:`/dirs/${idx}`;
    const res=await api(path,'DELETE');
    if(res.ok){toast('已删除');userData=res.user;renderTasks();}
  });
}

/* ====== 编辑弹窗 ====== */
const CHANNEL_FIELDS = ['channel_id','scan_id'];
function editField(type,idx,field,label,showChPicker) {
  editCtx = {type,idx,field};
  document.getElementById('editTitle').innerHTML = `✏️ 编辑 - ${label} <button class="modal-close" onclick="closeModal('modalEdit')">✕</button>`;
  document.getElementById('editLabel').textContent = label;
  document.getElementById('editVal').value = '';
  document.getElementById('editVal').placeholder = `请输入新的${label}`;
  const pickerEl = document.getElementById('pickerEditVal');
  pickerEl.style.display = (showChPicker||CHANNEL_FIELDS.includes(field)) ? '' : 'none';
  openModal('modalEdit');
}

async function submitEdit() {
  const val=document.getElementById('editVal').value.trim();
  if(!val) return toast('不能为空','error');
  const {type,idx,field}=editCtx;
  const path=type==='stats'?`/stats/${idx}`:`/dirs/${idx}`;
  const res=await api(path,'PUT',{field,value:val});
  if(res.ok){
    if(field==='extract_blacklist') toast('🔍 正在后台读取榜单...');
    else toast('✅ 已修改');
    closeModal('modalEdit');
    if(res.user){userData=res.user;renderTasks();}
  } else toast(res.msg||'修改失败','error');
}

/* ====== 🆕 发送消息（支持媒体文件）====== */
async function sendBtnNew() {
  const chId = document.getElementById('bnCh').value.trim();
  const text = document.getElementById('bnText').value;
  const btnText = document.getElementById('bnBtnText').value.trim();
  const url = document.getElementById('bnUrl').value.trim();
  const fileInput = document.getElementById('bnMedia');

  if(!chId) return toast('请填写频道ID','error');
  if(!text && (!fileInput.files||!fileInput.files[0])) return toast('请输入内容或选择媒体文件','error');

  // 有媒体文件时用 FormData 上传
  if(fileInput.files && fileInput.files[0]) {
    const formData = new FormData();
    formData.append('ch_id', chId);
    formData.append('text', text);
    formData.append('btn_text', btnText);
    formData.append('url', url);
    formData.append('media', fileInput.files[0]);

    try {
      const resp = await fetch(API+'/btn_new_media', {
        method:'POST',
        headers:{'X-Init-Data':initData},
        body: formData
      });
      const res = await resp.json();
      if(res.ok){toast('✅ 消息已发送');closeModal('modalBtnNew');}
      else toast(res.msg||'发送失败','error');
    } catch(e) { toast('发送出错: '+e.message,'error'); }
  } else {
    // 纯文本模式
    const body = {ch_id:chId, text, btn_text:btnText, url};
    const res = await api('/btn_new','POST',body);
    if(res.ok){toast('✅ 消息已发送');closeModal('modalBtnNew');}
    else toast(res.msg||'发送失败','error');
  }
}

async function sendBtnOld() {
  const body={ch_id:document.getElementById('boCh').value.trim(),msg_id:document.getElementById('boMsg').value.trim(),
    btn_text:document.getElementById('boBtnText').value.trim(),url:document.getElementById('boUrl').value.trim()};
  if(!body.ch_id||!body.msg_id||!body.btn_text) return toast('请填写必填项','error');
  const res=await api('/btn_old','POST',body);
  if(res.ok){toast('✅ 操作成功');closeModal('modalBtnOld');}else toast(res.msg||'失败','error');
}

function addBtnRow() {
  const c=document.getElementById('bmBtnsContainer');
  const div=document.createElement('div');
  div.className='form-group';div.style.cssText='display:flex;gap:8px';
  div.innerHTML=`<input class="form-input" placeholder="按钮文字" style="flex:1"><input class="form-input" placeholder="https://链接" style="flex:1">`;
  c.appendChild(div);
}

async function sendBtnMulti() {
  const ch=document.getElementById('bmCh').value.trim(), text=document.getElementById('bmText').value;
  const rows=document.querySelectorAll('#bmBtnsContainer .form-group'), buttons=[];
  rows.forEach(r=>{const ins=r.querySelectorAll('input');if(ins[0].value.trim()&&ins[1].value.trim()) buttons.push({text:ins[0].value.trim(),url:ins[1].value.trim()});});
  if(!ch||!text||!buttons.length) return toast('请填写完整','error');
  const res=await api('/btn_multi','POST',{ch_id:ch,text,buttons});
  if(res.ok){toast('✅ 已发送');closeModal('modalBtnMulti');}else toast(res.msg||'失败','error');
}

async function genDir() {
  const ch=document.getElementById('gdCh').value.trim();
  if(!ch) return toast('请输入频道ID','error');
  const res=await api('/gen_dir','POST',{ch_id:ch});
  toast(res.ok?'✅ 扫描已启动，请在 Bot 对话中查看结果':(res.msg||'失败'),res.ok?'success':'error');
  if(res.ok) closeModal('modalGenDir');
}

async function replaceTag() {
  const body={ch_id:document.getElementById('rpCh').value.trim(),old_tag:document.getElementById('rpOld').value.trim(),
    new_tag:document.getElementById('rpNew').value.trim()};
  if(!body.ch_id||!body.old_tag) return toast('请填写必填项','error');
  if(!body.old_tag.startsWith('#')) return toast('旧标签需以#开头','error');
  const res=await api('/replace_tag','POST',body);
  toast(res.ok?'✅ 替换任务已启动':(res.msg||'失败'),res.ok?'success':'error');
  if(res.ok) closeModal('modalReplace');
}

function renderBackupGroups() {
  const c=document.getElementById('backupGroupBtns'), groups=userData?.groups||[];
  if(!groups.length){c.innerHTML='<p style="color:var(--hint);font-size:13px">暂无同步组可快速备份</p>';return;}
  c.innerHTML=groups.map((g,i)=>{
    const nm=g.name||`组${i+1}`;
    return `<button class="btn btn-ghost btn-sm" style="margin:4px" onclick="quickBackup(${i})">📦 ${nm}: ${chNameOnly(g.src)}</button>`;
  }).join('');
}

function quickBackup(idx) {
  const g=userData.groups[idx]; if(!g) return;
  document.getElementById('bkSrc').value = g.src||'';
  const container=document.getElementById('bkTgtContainer');
  let tgts=g.tgt; if(typeof tgts==='string') tgts=[tgts];
  container.innerHTML='';
  (tgts||[]).forEach(t=>{
    const div=document.createElement('div');
    div.className='form-group';
    div.innerHTML=`<input class="form-input bk-tgt" placeholder="-100xxxxxxxxxx" value="${t}"><div class="channel-picker"></div>`;
    container.appendChild(div);
  });
  renderChannelPickers();
  toast('✅ 已自动填充，请粘贴最新消息链接后点击备份');
}

function addBkTgtRow() {
  const c=document.getElementById('bkTgtContainer');
  const div=document.createElement('div');
  div.className='form-group';
  div.innerHTML=`<input class="form-input bk-tgt" placeholder="-100xxxxxxxxxx"><div class="channel-picker"></div>`;
  c.appendChild(div);
  renderChannelPickers();
}

async function startBackup() {
  const src=document.getElementById('bkSrc').value.trim();
  const link=document.getElementById('bkLink').value.trim();
  const wash=document.getElementById('bkWash').checked;
  const tgts=[];
  document.querySelectorAll('#bkTgtContainer .bk-tgt').forEach(i=>{const v=i.value.trim();if(v)tgts.push(v);});
  if(!src||!tgts.length||!link) return toast('请填写完整','error');
  const mode=wash?'🔄 洗MD5':'📦 普通';
  const res=await api('/backup','POST',{src,tgt:tgts,link,wash});
  toast(res.ok?`✅ 备份已启动 (${mode}, ${tgts.length}个目标)`:(res.msg||'失败'),res.ok?'success':'error');
  if(res.ok) closeModal('modalBackup');
}

/* ====== 🆕 备份频道成员 ====== */
async function backupMembers() {
  const chId = document.getElementById('bmChId').value.trim();
  if(!chId) return toast('请输入频道ID','error');
  const res = await api('/backup_members','POST',{ch_id:chId});
  if(res.ok){
    toast('✅ 导出任务已启动，请在 Bot 对话查看结果');
    closeModal('modalBackupMembers');
  } else toast(res.msg||'失败','error');
}

/* ====== 批量建频道 ====== */
async function startBatchCreate() {
  const names=document.getElementById('bcNames').value.trim();
  const users=document.getElementById('bcUsers').value.trim();
  const count=parseInt(document.getElementById('bcCount').value)||1;
  if(!names) return toast('请输入频道名称','error');
  const res=await api('/batch_create','POST',{names,users,count});
  if(res.ok){toast('✅ 批量创建已启动！');closeModal('modalBatchCreate');}
  else toast(res.msg||'提交失败','error');
}

/* ====== 洗MD5开关交互 ====== */
document.getElementById('bkWash').addEventListener('change', function() {
  const dot=document.getElementById('bkWashDot');
  if(this.checked){
    dot.style.left='25px';
    dot.parentElement.previousElementSibling.style.background='rgba(233,69,96,.5)';
  } else {
    dot.style.left='3px';
    dot.parentElement.previousElementSibling.style.background='rgba(255,255,255,.12)';
  }
  try{tg.HapticFeedback.impactOccurred('light')}catch(e){}
});

loadHome();
</script>
</body>
</html>