const NotificationsPage = {
  async render() { return '<div class="loading"><i class="fas fa-spinner"></i></div>'; },

  async mount() {
    document.getElementById('page-title').textContent = '通知配置';
    document.getElementById('page-actions').innerHTML = '<button class="btn btn-p btn-sm" data-action="NotificationsPage:showCreate"><i class="fas fa-plus"></i> 添加通知</button>';
    await this.load();
  },

  async load() {
    const ct = document.getElementById('page-content');
    try {
      const cfgs = await API.get('/notifications');
      const typeLabel = { webhook:'Discord', email:'邮件通知', generic:'通用Webhook' };
      ct.innerHTML = cfgs.length ? cfgs.map(c => `
        <div class="card"><div class="card-h"><span><i class="fas fa-${c.type==='email'?'envelope':c.type==='generic'?'plug':'link'}"></i> ${U.esc(c.name)}</span><span>${c.active?`<span class="badge bg-resolved">启用</span>`:`<span class="badge bg-rejected">禁用</span>`}</span></div><div class="card-b">
          <div class="detail-row"><span class="lbl">类型</span><span class="val">${typeLabel[c.type]||c.type}</span></div>
          ${c.type!=='email' && c.webhook_url?`<div class="detail-row"><span class="lbl">地址</span><span class="val ts" style="word-break:break-all">${U.esc(c.webhook_url)}</span></div>`:''}
          <div class="detail-row"><span class="lbl">事件</span><span class="val">${EventsLabel(c.events)}</span></div>
          <div class="mt-2 flex g2">
            <button class="btn btn-o btn-sm" onclick="NotificationsPage.showEdit(${c.id},'${U.escJs(c.name)}','${c.type}','${U.escJs(c.webhook_url||'')}','${c.events}',${c.active})"><i class="fas fa-edit"></i> 编辑</button>
            ${c.type!=='email'?`<button class="btn btn-i btn-sm" onclick="NotificationsPage.test(${c.id})"><i class="fas fa-paper-plane"></i> 测试</button>`:''}
            <button class="btn btn-d btn-sm" onclick="NotificationsPage.del(${c.id})"><i class="fas fa-trash"></i></button>
          </div>
        </div></div>
      `).join('') : '<div class="empty"><i class="fas fa-bell-slash"></i><p>暂无通知配置</p></div>';
    } catch (e) { ct.innerHTML = `<div class="alert alert-e">${e.message}</div>`; }
  },

  showCreate() {
    U.modal('添加通知', `
      <form id="nc-form">
        <div class="form-group"><label>名称 *</label><input id="nc-name" placeholder="如：Discord通知" required></div>
        <div class="form-group"><label>类型 *</label><select id="nc-type" onchange="NotificationsPage.toggleFields()">
          <option value="webhook">Discord Webhook</option>
          <option value="email">邮件通知</option>
          <option value="generic">通用Webhook(企微/QQ/飞书)</option>
        </select></div>
        <div class="form-group" id="nc-url-group"><label>Webhook URL</label><input id="nc-url" placeholder="https://..."></div>
        <div class="form-group"><label>触发事件</label>
          <div style="display:flex;flex-wrap:wrap;gap:8px;margin-top:4px">${EventOptions('all')}</div>
          <input type="hidden" id="nc-events" value="all">
        </div>
        <div class="modal-f"><button type="button" class="btn btn-o" data-action="App:closeModal">取消</button><button type="submit" class="btn btn-p">创建</button></div>
      </form>
    `);
    bindEventToggles();
    document.getElementById('nc-form').onsubmit = async e => { e.preventDefault();
      const type = document.getElementById('nc-type').value;
      try { await API.post('/notifications',{name:document.getElementById('nc-name').value, type, webhook_url:document.getElementById('nc-url').value, events:document.getElementById('nc-events').value}); App.closeModal(); this.load(); } catch(ex){alert(ex.message);}
    };
  },

  toggleFields() {
    const type = document.getElementById('nc-type')?.value || document.getElementById('ne-type')?.value;
    const urlGroup = document.querySelector('#nc-url-group') || document.querySelector('#ne-url-group');
    if (urlGroup) urlGroup.style.display = type === 'email' ? 'none' : '';
  },

  showEdit(id, name, type, url, events, active) {
    U.modal('编辑通知', `
      <form id="ne-form"><div class="form-group"><label>名称</label><input id="ne-name" value="${name}"></div>
      <div class="form-group"><label>类型</label><select id="ne-type" onchange="NotificationsPage.toggleFields()">
        <option value="webhook" ${type==='webhook'?'selected':''}>Discord Webhook</option>
        <option value="email" ${type==='email'?'selected':''}>邮件通知</option>
        <option value="generic" ${type==='generic'?'selected':''}>通用Webhook</option>
      </select></div>
      <div class="form-group" id="ne-url-group" style="${type==='email'?'display:none':''}"><label>Webhook URL</label><input id="ne-url" value="${url}"></div>
      <div class="form-group"><label>触发事件</label>
        <div style="display:flex;flex-wrap:wrap;gap:8px;margin-top:4px">${EventOptions(events)}</div>
        <input type="hidden" id="ne-events" value="${events}">
      </div>
      <div class="form-group"><label>状态</label><select id="ne-active"><option value="1" ${active?'selected':''}>启用</option><option value="0" ${!active?'selected':''}>禁用</option></select></div>
      <div class="modal-f"><button type="button" class="btn btn-o" data-action="App:closeModal">取消</button><button type="submit" class="btn btn-p">保存</button></div></form>
    `);
    bindEventToggles();
    document.getElementById('ne-form').onsubmit = async e => { e.preventDefault();
      const newType = document.getElementById('ne-type').value;
      try { await API.put(`/notifications/${id}`,{name:document.getElementById('ne-name').value, webhook_url:document.getElementById('ne-url')?.value, events:document.getElementById('ne-events').value, active:document.getElementById('ne-active').value==='1', type:newType}); App.closeModal(); this.load(); } catch(ex){alert(ex.message);}
    };
  },

  async test(id) { try { alert((await API.post(`/notifications/${id}/test`)).message); } catch(ex){alert(ex.message);} },
  async del(id) { if(await U.confirm('确认删除？')){ try { await API.req('DELETE',`/notifications/${id}`); this.load(); } catch(ex){alert(ex.message);} } }
};

function EventOptions(current) { return ['all','ticket_created','ticket_claimed','ticket_transferred','ticket_updated'].map(e=>`<label style="cursor:pointer;font-size:12px"><input type="checkbox" value="${e}" class="ev-check" ${Current.split(',').map(s=>s.trim()).includes(e)?'checked':''}> ${EventsLabelSingle(e)}</label>`).join(''); }
function EventsLabel(v) { return v==='all'?'全部事件':v.split(',').map(s=>s.trim()).map(EventsLabelSingle).join(', '); }
function EventsLabelSingle(e) { return {all:'全部',ticket_created:'工单创建',ticket_claimed:'工单认领',ticket_transferred:'工单转交',ticket_updated:'工单更新'}[e]||e; }
function bindEventToggles() {
  document.querySelectorAll('.ev-check').forEach(cb=>{ cb.onchange=()=>{ const all=document.querySelectorAll('.ev-check'); const v=Array.from(all).filter(c=>c.checked).map(c=>c.value).join(','); const hid=cb.closest('form').querySelector('input[type="hidden"]'); if(hid)hid.value=v; }; });
}