// 任务 Tab：任务计划 CRUD/调度解析/运行窗口 + 自定义动作管理
// ================== Tab 2: 任务 ==================
let _taskTypes=[];
let _groupsList=[];
let _devicesList=[];

async function loadTasks(){
  const [jr,gr,dr,tr]=await Promise.all([
    apiGet('/api/jobs'),apiGet('/api/groups'),apiGet('/api/devices'),apiGet('/api/task_types')
  ]);
  if(!jr)return;
  _jobsData=jr.jobs||[];
  _taskTypes=tr?tr.task_types||[]:[];
  _groupsList=gr?gr.groups||[]:[];
  // items 带名称（设备身份）；老接口只有 serial 列表时兜底成对象
  _devicesList=(dr&&dr.items)?dr.items
    :((dr&&dr.devices)||[]).map(s=>({serial:s,name:'',model:''}));
  renderTaskTable();
}

function renderTaskTable(){
  const jobs=_jobsData||[];
  setListPager('tasks',{
    data:()=>jobs,
    filter:(j,kw)=>((j.name||'').toLowerCase().includes(kw)||(j.task_type||'').toLowerCase().includes(kw)||(j.id||'').toLowerCase().includes(kw)),
    sortValue:(j,k)=>{ if(k==='id')return j.id||''; if(k==='enabled')return j.enabled?1:0; if(k==='next_run')return j.next_run||''; return j[k]||''; },
    render:renderTaskRow,
    tbody:'tb-tasks',pager:'pager-tasks',pageSize:10,
    empty:'<tr><td colspan="9" class="empty">暂无任务，点击"新建任务"创建</td></tr>'
  });
  applyListPager('tasks');
  initListSearch('tasks','search-tasks');
}
function renderTaskRow(j){
  const tgt=TARGET_MAP[j.target.mode]||j.target.mode;
  const tgtDetail=j.target.mode==='group'?(j.target.group_name||''):(j.target.mode==='serial'?(j.target.serial||''):'');
  const sched=j.schedule.mode==='cron_stop'?('启停 '+cronToText(j.schedule.cron||'')+' → '+cronToText(j.schedule.stop_cron||'')):
               j.schedule.mode==='cron'?('定时 '+cronToText(j.schedule.cron||'')):'手动';
  const schedTxt=sched+((j.schedule.window&&j.schedule.window.start&&j.schedule.window.end)
    ?' [窗口 '+esc(j.schedule.window.start)+'-'+esc(j.schedule.window.end)+']':'');
  const schedOut='<td>'+schedTxt+'</td>';
  // 下次运行时间（后端已按运行窗口跳过窗口外触发点）
  const nextRun=fmtNextRun(j.next_run);
  const nextOut='<td>'+(nextRun||'<span class="text-muted">-</span>')+'</td>';
  const retry=j.retry.max_attempts>1?(j.retry.max_attempts+'次/'+j.retry.delay+'s'):'不重试';
  const en=j.enabled?'<span class="label label-success">启用</span>':'<span class="label label-default">停用</span>';
  return '<tr>'+
    '<td><code>'+esc(j.id)+'</code></td>'+
    '<td><strong>'+esc(j.name)+'</strong></td>'+
    '<td>'+esc(j.task_type)+'</td>'+
    '<td>'+en+'</td>'+
    '<td>'+esc(tgt)+(tgtDetail?'('+esc(tgtDetail)+')':'')+'</td>'+
    schedOut+
    nextOut+
    '<td>'+retry+'</td>'+
    '<td>'+
      (_can('tasks')?(
        '<button class="btn btn-primary btn-xs" onclick="apiAction(\'/api/jobs/'+j.id+'/run\')">执行</button>'+
        '<button class="btn btn-xs" onclick="apiAction(\'/api/jobs/'+j.id+'/toggle\',{enabled:'+(!j.enabled)+'})">'+(j.enabled?'停用':'启用')+'</button>'+
        '<button class="btn btn-xs" onclick="openTaskModal(\''+j.id+'\')">编辑</button>'+
        '<button class="btn btn-danger btn-xs" onclick="deleteTask(\''+j.id+'\')">删除</button>'
      ):'<span class="text-muted">只读</span>')+
    '</td>'+
  '</tr>';
}

// 任务信封归一化：补齐 7 个键，避免下游无保护访问
// （原文只对"已存在的 job"安全，AI 草稿/半成品信封会让 j.retry.max_attempts 之类直接抛错）
function _normalizeTaskEnv(env){
  const e=env||{}, t=e.target||{}, s=e.schedule||{}, r=e.retry||{}, p=e.params||{};
  return {
    name:e.name||'',
    task_type:e.task_type||'generic_steps',
    enabled:(e.enabled===undefined)?true:!!e.enabled,
    target:{mode:t.mode||'all', group_name:t.group_name||'', serial:t.serial||''},
    schedule:{mode:s.mode||'once', cron:s.cron||'', stop_cron:s.stop_cron||'',
              window:s.window||null},
    retry:{max_attempts:r.max_attempts||1, delay:r.delay||60},
    params:Object.assign({}, p)
  };
}

// ================== 公共巡检（任务级，独立于步骤画布） ==================
// 与后端 core/patrol.py 的 CHECKS/ACTIONS 一一对应；选项变动时两边一起改。
// 存进任务 params.watchers，worker 在步骤之间穿插执行（见 core/patrol.py 模块注释）。
const _PATROL_CHECKS=[
  ['screen_off','屏幕熄灭',''], ['screen_on','屏幕亮着',''],
  ['element_exists','元素存在','selector'], ['element_missing','元素不存在','selector'],
  ['foreground_is','前台是该App','package'], ['foreground_not','前台不是该App','package'],
];
const _PATROL_ACTIONS=[
  ['none','只发通知，不动设备'], ['screen_on','点亮屏幕'],
  ['screen_off','熄灭屏幕'], ['stop_self','停止本设备任务'],
];
let _patrolItems=[];

function patrolInit(items){
  _patrolItems=(items||[]).filter(function(x){return x&&typeof x==='object';})
    .map(function(x){return Object.assign({},x);});
  patrolRender();
}
function patrolAdd(){
  patrolSync();
  _patrolItems.push({enabled:true,name:'',interval:60,check:'screen_off',selector_type:'xpath',
                     selector_value:'',action:'screen_on',notify:true,
                     title:'',message:'',cooldown:300});
  patrolRender();
}
function patrolRemove(i){
  patrolSync();
  _patrolItems.splice(i,1);
  patrolRender();
}
// DOM → 内存（重渲染前必须调，否则刚填的值会被覆盖）
function patrolSync(){
  const list=document.getElementById('patrol-list');
  if(!list)return;
  list.querySelectorAll('.patrol-card').forEach(function(card,i){
    const w=_patrolItems[i]; if(!w)return;
    const get=function(k){
      const el=card.querySelector('[data-pk="'+k+'"]');
      if(!el)return undefined;
      return el.type==='checkbox'?el.checked:el.value;
    };
    ['name','check','action','selector_type','selector_value','title','message'].forEach(function(k){
      const v=get(k); if(v!==undefined)w[k]=v;
    });
    ['interval','cooldown'].forEach(function(k){
      const v=get(k); if(v!==undefined)w[k]=parseInt(v,10)||0;
    });
    ['enabled','notify'].forEach(function(k){
      const v=get(k); if(v!==undefined)w[k]=v;
    });
  });
}
function patrolCollect(){
  patrolSync();
  return _patrolItems.map(function(w){
    return {enabled:w.enabled!==false, name:(w.name||'').trim(), interval:parseInt(w.interval,10)||60,
            check:w.check||'screen_off', selector_type:w.selector_type||'xpath',
            selector_value:(w.selector_value||'').trim(), action:w.action||'none',
            notify:w.notify!==false, title:(w.title||'').trim(), message:(w.message||'').trim(),
            cooldown:parseInt(w.cooldown,10)||0};
  });
}
// 检查项一变，条件行（选择器/包名）跟着换
function patrolCheckChanged(sel){
  const card=sel.closest('.patrol-card');
  const need=(_PATROL_CHECKS.find(function(c){return c[0]===sel.value;})||[])[2]||'';
  const row=card.querySelector('.patrol-cond');
  row.style.display=need?'flex':'none';
  const typeBox=row.querySelector('.patrol-seltype');
  if(typeBox)typeBox.style.display=(need==='selector')?'block':'none';
  const lb=row.querySelector('.patrol-vallabel');
  if(lb)lb.textContent=(need==='package')?'前台包名':'选择器值';
  const inp=row.querySelector('[data-pk="selector_value"]');
  if(inp)inp.placeholder=(need==='package')?'如 com.ss.android.ugc.aweme':'如 点赞';
}
function patrolRender(){
  const list=document.getElementById('patrol-list');
  if(!list)return;
  if(!_patrolItems.length){
    list.innerHTML='<div class="text-muted" style="font-size:12px;padding:4px 0">（没有巡检项）</div>';
    return;
  }
  list.innerHTML=_patrolItems.map(_patrolCardHtml).join('');
}
function _patrolCardHtml(w,i){
  const need=(_PATROL_CHECKS.find(function(c){return c[0]===w.check;})||[])[2]||'';
  const chkOpts=_PATROL_CHECKS.map(function(c){
    return '<option value="'+c[0]+'"'+(w.check===c[0]?' selected':'')+'>'+c[1]+'</option>';}).join('');
  const actOpts=_PATROL_ACTIONS.map(function(a){
    return '<option value="'+a[0]+'"'+(w.action===a[0]?' selected':'')+'>'+a[1]+'</option>';}).join('');
  const typeOpts=['xpath','description','text','resourceId','descriptionContains','className']
    .map(function(t){return '<option value="'+t+'"'+(w.selector_type===t?' selected':'')+'>'+t+'</option>';}).join('');
  return '<div class="patrol-card">'
   +'<div class="patrol-row">'
     +'<label class="form-check"><input type="checkbox" data-pk="enabled" '+(w.enabled!==false?'checked':'')+'><span>启用</span></label>'
     +'<input class="form-control" data-pk="name" style="flex:1" placeholder="巡检名，如 熄屏点亮" value="'+esc(w.name||'')+'">'
     +'<button class="btn btn-xs btn-danger" onclick="patrolRemove('+i+')">删除</button>'
   +'</div>'
   +'<div class="patrol-row">'
     +'<div class="pg"><label>每隔(秒)</label><input type="number" class="form-control" data-pk="interval" value="'+(w.interval||60)+'" min="5"></div>'
     +'<div class="pg"><label>检查</label><select class="form-control" data-pk="check" onchange="patrolCheckChanged(this)">'+chkOpts+'</select></div>'
     +'<div class="pg"><label>命中后动作</label><select class="form-control" data-pk="action">'+actOpts+'</select></div>'
     +'<div class="pg"><label>冷却(秒)</label><input type="number" class="form-control" data-pk="cooldown" value="'+(w.cooldown!=null?w.cooldown:300)+'" min="0"></div>'
   +'</div>'
   +'<div class="patrol-row patrol-cond" style="display:'+(need?'flex':'none')+'">'
     +'<div class="pg patrol-seltype" style="display:'+(need==='selector'?'block':'none')+'"><label>选择器类型</label>'
     +'<select class="form-control" data-pk="selector_type">'+typeOpts+'</select></div>'
     +'<div class="pg" style="flex:1"><label class="patrol-vallabel">'+(need==='package'?'前台包名':'选择器值')+'</label>'
     +'<input class="form-control" data-pk="selector_value" value="'+esc(w.selector_value||'')+'" placeholder="'
     +(need==='package'?'如 com.ss.android.ugc.aweme':'如 点赞')+'"></div>'
   +'</div>'
   +'<div class="patrol-row">'
     +'<label class="form-check"><input type="checkbox" data-pk="notify" '+(w.notify!==false?'checked':'')+'><span>命中发通知</span></label>'
     +'<div class="pg" style="flex:1"><label>标题</label><input class="form-control" data-pk="title" value="'+esc(w.title||'')+'" placeholder="{device} 熄屏了"></div>'
     +'<div class="pg" style="flex:2"><label>内容</label><input class="form-control" data-pk="message" value="'+esc(w.message||'')+'" placeholder="任务 {job} 在 {time} 发现 {screen}，已处理"></div>'
   +'</div>'
   +'<div class="help">占位符：{device} 设备名、{serial} 地址、{job} 任务名、{time} 时间、{app} 当前前台包名、'
   +'{screen} 亮屏/熄屏（后两个要查设备，不用就别写）。冷却期内重复命中不会重复动作/通知，防刷屏</div>'
   +'</div>';
}

// openTaskModal(jobId, prefill)
//   jobId   —— 传 id = 编辑已有任务
//   prefill —— AI 建任务的草稿：{task, notes, warnings}（服务端已校验，这里只预填给人核对）
function openTaskModal(jobId, prefill){
  const job=jobId?(_jobsData||[]).find(j=>j.id===jobId):null;
  const isEdit=!!job;
  const pf=(prefill&&prefill.task)?prefill:null;
  document.getElementById('modal-title').textContent=
    isEdit?'编辑任务':(pf?'AI 生成任务（请核对后保存）':'新建任务');
  // 任务编辑器含步骤编辑，加宽弹窗；关闭时在 closeModal 移除
  document.getElementById('modal-box').classList.add('wide-modal');

  const j=_normalizeTaskEnv(job||(pf&&pf.task)||{});
  const tt=_taskTypes.map(t=>'<option value="'+t.task_type+'"'+(t.task_type===j.task_type?' selected':'')+'>'+esc(t.name)+'</option>').join('');
  const gl=_groupsList.map(g=>'<option value="'+g.name+'"'+(g.name===j.target.group_name?' selected':'')+'>'+esc(g.name)+'</option>').join('');
  const dl=_devicesList.map(x=>'<option value="'+esc(x.serial)+'"'+(x.serial===j.target.serial?' selected':'')+'>'
      +esc(devText(x.name, x.serial))+'</option>').join('');
  const sm=j.schedule.mode;
  const startCron=(sm==='cron'||sm==='cron_stop')?(j.schedule.cron||''):'';
  const stopCron=sm==='cron_stop'?(j.schedule.stop_cron||''):'';
  // 运行窗口（每天时间段，窗口外不启动）
  const win=j.schedule.window||null;
  const winStart=win?(win.start||'09:00'):'09:00';
  const winEnd=win?(win.end||'18:00'):'18:00';
  // 简单调度：把已有 cron 解析回"频率+时间"，编辑时回填；解析不了落到自定义
  const sc=parseCronToFreq(startCron);
  const stopF=parseCronToFreq(stopCron).time;
  const weekdayOpts=[0,1,2,3,4,5,6].map(w=>
    '<option value="'+w+'"'+(sc.weekday===w?' selected':'')+'>'+WEEKDAY_NAMES[w]+'</option>').join('');

  document.getElementById('modal-body').innerHTML=
    '<div class="form-row">'+
      '<div class="form-group"><label>任务名</label><input type="text" class="form-control" id="f-name" value="'+esc(j.name)+'" placeholder="如：刷视频-上午"></div>'+
      '<div class="form-group"><label>任务类型</label><select class="form-control" id="f-task_type" onchange="onTaskTypeChange()">'+tt+'</select></div>'+
    '</div>'+
    '<div class="form-group form-check"><input type="checkbox" id="f-enabled" '+(j.enabled?'checked':'')+'><label for="f-enabled">启用此任务</label></div>'+
    '<div class="form-group"><label>目标设备</label>'+
      '<select class="form-control" id="f-target_mode" onchange="toggleTargetFields()">'+
        '<option value="all"'+(j.target.mode==='all'?' selected':'')+'>全部空闲设备</option>'+
        '<option value="group"'+(j.target.mode==='group'?' selected':'')+'>按分组</option>'+
        '<option value="serial"'+(j.target.mode==='serial'?' selected':'')+'>指定设备</option>'+
      '</select>'+
      '<div id="f-target_group_wrap" class="form-group" style="margin-top:8px;margin-bottom:0">'+
        '<select class="form-control" id="f-target_group"><option value="">选择分组...</option>'+gl+'</select>'+
      '</div>'+
      '<div id="f-target_serial_wrap" class="form-group" style="margin-top:8px;margin-bottom:0">'+
        '<select class="form-control" id="f-target_serial"><option value="">选择设备...</option>'+dl+'</select>'+
      '</div>'+
      '<div class="form-check" style="margin-top:8px">'+
        '<input type="checkbox" id="f-skip_offline" '+(j.params&&j.params.skip_offline===false?'':'checked')+'>'+
        '<label for="f-skip_offline">离线设备自动跳过（推荐）</label>'+
      '</div>'+
      '<div class="form-check" style="margin-top:6px">'+
        '<input type="checkbox" id="f-preempt" '+(j.params&&j.params.preempt?'checked':'')+'>'+
        '<label for="f-preempt" title="触发时停止目标设备上正在运行的其他任务，接管设备执行本任务">抢占设备（打断其他任务）</label>'+
      '</div>'+
    '</div>'+
    '<div class="form-row">'+
      '<div class="form-group"><label>调度方式</label>'+
        '<select class="form-control" id="f-schedule_mode" onchange="toggleScheduleFields()">'+
          '<option value="once"'+(sm==='once'?' selected':'')+'>手动（不自动启动）</option>'+
          '<option value="cron"'+(sm==='cron'?' selected':'')+'>定时启动</option>'+
          '<option value="cron_stop"'+(sm==='cron_stop'?' selected':'')+'>定时启动+停止</option>'+
        '</select>'+
      '</div>'+
      '<div class="form-group" id="f-freq_wrap" style="display:none"><label>频率</label>'+
        '<select class="form-control" id="f-schedule_freq" onchange="toggleScheduleFields()">'+
          '<option value="daily"'+((sc.freq==='daily')?' selected':'')+'>每天</option>'+
          '<option value="hourly"'+((sc.freq==='hourly')?' selected':'')+'>每小时（整点）</option>'+
          '<option value="everyN"'+((sc.freq==='everyN')?' selected':'')+'>每隔 N 小时</option>'+
          '<option value="weekly"'+((sc.freq==='weekly')?' selected':'')+'>每周</option>'+
          '<option value="custom"'+((sc.freq==='custom')?' selected':'')+'>自定义 cron（高级）</option>'+
        '</select>'+
      '</div>'+
      '<div class="form-group" id="f-time_wrap" style="display:none"><label>启动时间</label><input type="time" class="form-control" id="f-schedule_time" value="'+esc(sc.time||'09:00')+'"></div>'+
      '<div class="form-group" id="f-interval_wrap" style="display:none"><label>间隔（小时）</label><input type="number" class="form-control" id="f-schedule_interval" value="'+(sc.interval||2)+'" min="1" max="12"><div class="help">从 0 点起算，如 2 = 0/2/4/6...点启动</div></div>'+
      '<div class="form-group" id="f-weekday_wrap" style="display:none"><label>星期</label><select class="form-control" id="f-schedule_weekday">'+weekdayOpts+'</select></div>'+
      '<div class="form-group" id="f-cron_wrap" style="display:none"><label>启动 Cron 表达式</label><input type="text" class="form-control" id="f-schedule_cron" value="'+esc(startCron)+'" placeholder="如 0 9 * * * = 每天9点启动" style="font-family:monospace"><div class="help">格式：分 时 日 月 周（0 0 * * 0 = 每周日零点）</div></div>'+
      '<div class="form-group" id="f-stop_wrap" style="display:none"><label>停止时间（每天）</label><input type="time" class="form-control" id="f-schedule_stop_time" value="'+esc(stopF||'18:00')+'"><div class="help">到点自动停止所有运行中的 worker</div></div>'+
    '</div>'+
    '<div class="form-group form-check" style="margin-top:4px"><input type="checkbox" id="f-window_enable" '+(win?'checked':'')+' onchange="toggleWindowFields()"><label for="f-window_enable">启用运行窗口（只在指定时间段内运行）</label></div>'+
    '<div class="form-row" id="f-window_wrap" style="display:'+(win?'flex':'none')+'">'+
      '<div class="form-group"><label>允许运行·开始</label><input type="time" class="form-control" id="f-window_start" value="'+esc(winStart)+'"></div>'+
      '<div class="form-group"><label>允许运行·结束</label><input type="time" class="form-control" id="f-window_end" value="'+esc(winEnd)+'"></div>'+
    '</div>'+
    '<div class="help" id="f-window_help" style="display:'+(win?'block':'none')+'">窗口只约束定时触发：窗口外定时不会启动，手动执行不受限制。跨午夜示例：21:00-09:00 = 晚 9 点到次日早 9 点允许运行</div>'+
    '<div class="form-row">'+
      '<div class="form-group"><label>重试次数</label><input type="number" class="form-control" id="f-retry_attempts" value="'+j.retry.max_attempts+'" min="1" max="10"></div>'+
      '<div class="form-group"><label>重试间隔(秒)</label><input type="number" class="form-control" id="f-retry_delay" value="'+j.retry.delay+'" min="10" max="3600"></div>'+
    '</div>'+
    '<div class="form-group" id="f-params_wrap"><label>任务参数 (JSON)</label><textarea class="form-control" id="f-params" rows="6">'+esc(JSON.stringify(j.params||{},null,2))+'</textarea><div class="help">可留空使用默认参数。抖音任务可设 max_duration（秒，如 1800=30分钟）限制单设备运行时长</div></div>'+
    '<div class="step-editor" id="step-editor">'+
      '<div class="se-head"><span>步骤编辑器</span><span style="font-size:11px;color:var(--text-light);flex:1;margin-left:12px">用步骤卡片上的 ☑ 选中多个步骤，可打包成自定义动作</span>'+
        (_can('tasks')?'<button class="btn btn-xs btn-primary" id="se-pack-btn" disabled onclick="_stepEditor.saveAsCustomAction()">打包选中步骤</button>':'')+
      '</div>'+
      '<div class="se-body">'+
        '<div class="se-lib" id="se-lib"><div class="lib-title">操作库</div></div>'+
        '<div class="se-canvas" id="se-canvas"></div>'+
      '</div>'+
    '</div>'+
    // 公共巡检：任务级配置，**不在步骤画布里**（穿插执行，见 core/patrol.py）
    '<div class="patrol-box" id="patrol-box">'+
      '<div class="patrol-head">'+
        '<span>公共巡检<span class="hint" style="margin-left:8px">可选：任务运行期间按间隔穿插检查，命中就动作 + 通知</span></span>'+
        '<button class="btn btn-xs" onclick="patrolAdd()">＋ 添加巡检</button>'+
      '</div>'+
      '<div id="patrol-list"></div>'+
      '<div class="help">和步骤的区别：步骤是"按顺序做完这一段"，巡检是"全程都要盯着的条件"（比如熄屏就点亮、掉到桌面就通知）。'+
      '检查穿插在步骤之间执行，不额外抢设备；某一步耗时很长时，巡检最多晚那一步的时间。</div>'+
    '</div>';

  // AI 草稿的提醒/复核项：贴在步骤编辑器上方，别让人漏看
  if(pf&&((pf.notes&&pf.notes.length)||(pf.warnings&&pf.warnings.length))){
    const se=document.getElementById('step-editor');
    if(se) se.insertAdjacentHTML('beforebegin',
      '<div class="tg-note" style="margin-bottom:10px"><b>AI 探索说明（请核对）</b>'
      +(pf.notes||[]).map(n=>'<div>· '+esc(n)+'</div>').join('')
      +((pf.warnings||[]).length
        ? '<div style="margin-top:6px;color:#b45309"><b>校验提醒</b>'
          +pf.warnings.map(w=>'<div>· '+esc(w)+'</div>').join('')+'</div>'
        : '')
      +'</div>');
  }
  // 初始化步骤编辑器（generic_steps 时显示，其他隐藏）；jobId 作为草稿 key。
  // AI 草稿用一个唯一 key：既避开 localStorage 里"新建任务"的旧草稿覆盖预填内容，
  // 又保留自动存草稿（保存成功时 saveTask 会 clearDraft 清掉它）。
  const draftKey=jobId||(pf?('ai:'+Date.now()):'');
  _stepEditor.init(j.params&&j.params.steps?j.params.steps:[],j.params&&j.params.max_duration?j.params.max_duration:0,draftKey);
  patrolInit(j.params&&j.params.watchers);

  document.getElementById('modal-footer').innerHTML=
    '<button class="btn" onclick="closeModal()">取消</button>'+
    '<button class="btn btn-primary" onclick="saveTask('+(isEdit?'\''+jobId+'\'':'null')+')">'+(isEdit?'保存':'创建')+'</button>';

  toggleTargetFields();
  toggleScheduleFields();
  onTaskTypeChange();
  showModal();
}

function toggleTargetFields(){
  const mode=document.getElementById('f-target_mode').value;
  document.getElementById('f-target_group_wrap').style.display=mode==='group'?'block':'none';
  document.getElementById('f-target_serial_wrap').style.display=mode==='serial'?'block':'none';
}

// ===== 简单调度：cron(5段) ↔ 频率+时间 互转 =====
const WEEKDAY_NAMES=['周日','周一','周二','周三','周四','周五','周六'];
// cron → 简单设置 {freq: daily|hourly|everyN|weekly|custom, time:"HH:MM", interval, weekday(0-6)}
function parseCronToFreq(cron){
  const r={freq:'custom',time:'',interval:2,weekday:1};
  const p=(cron||'').trim().split(/\s+/);
  if(p.length!==5)return r;
  const [mi,h,d,m,w]=p;
  if(mi==='0'&&h==='*'&&d==='*'&&m==='*'&&w==='*'){r.freq='hourly';return r;}
  const n=(h.match(/^\*\/(\d+)$/)||[])[1];  // 每隔N小时：时位是 */N
  if(n&&mi==='0'&&d==='*'&&m==='*'&&w==='*'){r.freq='everyN';r.interval=parseInt(n)||2;return r;}
  if(/^\d{1,2}$/.test(mi)&&/^\d{1,2}$/.test(h)&&d==='*'&&m==='*'&&w==='*'){
    r.freq='daily';r.time=h.padStart(2,'0')+':'+mi.padStart(2,'0');return r;
  }
  if(/^\d{1,2}$/.test(mi)&&/^\d{1,2}$/.test(h)&&d==='*'&&m==='*'&&/^[0-7]$/.test(w)){
    r.freq='weekly';r.time=h.padStart(2,'0')+':'+mi.padStart(2,'0');r.weekday=parseInt(w)%7;return r;
  }
  return r; // 解析不了 → 落到自定义
}
// 表单 → cron(5段)
function buildCronFromFreq(){
  const freq=document.getElementById('f-schedule_freq').value;
  if(freq==='custom')return document.getElementById('f-schedule_cron').value.trim();
  if(freq==='hourly')return '0 * * * *';
  if(freq==='everyN'){
    const n=parseInt(document.getElementById('f-schedule_interval').value)||2;
    return '0 */'+Math.min(Math.max(n,1),12)+' * * *';
  }
  const t=(document.getElementById('f-schedule_time').value||'09:00').split(':');
  const mi=parseInt(t[1])||0, h=parseInt(t[0])||0;
  if(freq==='weekly'){
    const w=parseInt(document.getElementById('f-schedule_weekday').value)||0;
    return mi+' '+h+' * * '+w;
  }
  return mi+' '+h+' * * *'; // daily
}
// cron(5段) → 中文描述（任务列表显示）
function cronToText(cron){
  const r=parseCronToFreq(cron||'');
  if(r.freq==='hourly')return '每小时';
  if(r.freq==='everyN')return '每'+r.interval+'小时';
  if(r.freq==='daily')return '每天 '+r.time;
  if(r.freq==='weekly')return WEEKDAY_NAMES[r.weekday]+' '+r.time;
  return 'cron: '+(cron||'-');
}
function toggleScheduleFields(){
  const mode=document.getElementById('f-schedule_mode').value;
  const showSched=(mode==='cron'||mode==='cron_stop');
  document.getElementById('f-freq_wrap').style.display=showSched?'block':'none';
  document.getElementById('f-stop_wrap').style.display=mode==='cron_stop'?'block':'none';
  if(showSched)showFreqFields();
}
function toggleWindowFields(){
  const on=document.getElementById('f-window_enable').checked;
  document.getElementById('f-window_wrap').style.display=on?'flex':'none';
  document.getElementById('f-window_help').style.display=on?'block':'none';
}
function showFreqFields(){
  const freq=document.getElementById('f-schedule_freq').value;
  document.getElementById('f-time_wrap').style.display=(freq==='daily'||freq==='weekly')?'block':'none';
  document.getElementById('f-interval_wrap').style.display=freq==='everyN'?'block':'none';
  document.getElementById('f-weekday_wrap').style.display=freq==='weekly'?'block':'none';
  document.getElementById('f-cron_wrap').style.display=freq==='custom'?'block':'none';
}

function onTaskTypeChange(){
  const tt=document.getElementById('f-task_type').value;
  const isGeneric=tt==='generic_steps';
  document.getElementById('step-editor').classList.toggle('show',isGeneric);
  document.getElementById('f-params_wrap').style.display=isGeneric?'none':'block';
  const pb=document.getElementById('patrol-box');
  if(pb)pb.style.display=isGeneric?'block':'none';   // 巡检只对通用步骤任务有意义
}

// ================== 自定义动作管理 ==================
async function loadCustomActions(){
  const r=await apiGet('/api/custom_actions'); if(!r||!r.ok)return;
  _customActions=r.actions||[];
  setListPager('actions',{
    data:()=>_customActions,
    filter:(a,kw)=>((a.name||'').toLowerCase().includes(kw)),
    sortValue:(a,k)=>{ if(k==='steps')return (a.steps||[]).length; if(k==='created_at')return a.created_at||''; return a[k]||''; },
    render:renderActionRow,
    tbody:'tb-actions',pager:'pager-actions',pageSize:10,
    empty:'<tr><td colspan="5" class="empty">暂无自定义动作，可点击"新建动作"或用任务编辑器☑选中步骤打包</td></tr>'
  });
  applyListPager('actions');
  initListSearch('actions','search-actions');
  _stepEditor._renderLib(); // 刷新步骤编辑器左侧动作库
}
function renderActionRow(a){
  const n=(a.steps||[]).length;
  return '<tr>'+
    '<td style="font-size:20px">'+esc(a.icon||'📦')+'</td>'+
    '<td><strong>'+esc(a.name)+'</strong></td>'+
    '<td>'+n+'</td>'+
    '<td style="font-size:12px;color:#94a3b8">'+esc(a.created_at||'-')+'</td>'+
    '<td>'+
      (_can('tasks')?(
        '<button class="btn btn-xs" onclick="openActionModal(\''+a.id+'\')">编辑</button> '+
        '<button class="btn btn-danger btn-xs" onclick="deleteAction(\''+a.id+'\')">删除</button>'
      ):'<span class="text-muted">只读</span>')+
    '</td>'+
  '</tr>';
}
function openActionModal(actionId){
  const action=actionId?_customActions.find(a=>a.id===actionId):null;
  const isEdit=!!action;
  document.getElementById('action-modal-title').textContent=isEdit?'编辑动作':'新建动作';
  document.getElementById('action-modal-body').innerHTML=
    '<div class="form-row">'+
      '<div class="form-group"><label>动作名称</label><input type="text" class="form-control" id="a-name" value="'+esc(action?action.name:'')+'" placeholder="如：点赞动作"></div>'+
      '<div class="form-group"><label>图标</label><input type="text" class="form-control" id="a-icon" value="'+esc(action?(action.icon&&action.icon!=='📦'?action.icon:''):'')+'" placeholder="📦" style="width:80px"></div>'+
    '</div>'+
    '<div class="help" style="margin-bottom:8px">用下方步骤编辑器编排动作内容，保存后可拖入任务步骤编辑器复用</div>'+
    '<div class="step-editor" style="display:block">'+
      '<div class="se-head"><span>动作步骤</span><span style="font-size:11px;color:var(--text-light);margin-left:12px">支持循环/分组/概率触发/拖拽排序</span>'+
        (_can('tasks')?'<button class="btn btn-xs btn-primary" id="se-pack-btn2" disabled onclick="_stepEditor.saveAsCustomAction()">打包选中步骤</button>':'')+'</div>'+
      '<div class="se-body">'+
        '<div class="se-lib" id="action-lib"><div class="lib-title">操作库</div></div>'+
        '<div class="se-canvas" id="action-canvas"></div>'+
      '</div>'+
    '</div>';
  document.getElementById('action-modal-footer').innerHTML=
    '<button class="btn" onclick="closeActionModal()">取消</button>'+
    '<button class="btn btn-primary" onclick="saveAction('+(isEdit?'\''+actionId+'\'':'null')+')">保存动作</button>';
  // 用独立画布初始化步骤编辑器（不与任务编辑器冲突）
  _stepEditor.init(action&&action.steps?action.steps:[], 0, 'action:'+(actionId||'new'), 'action-canvas', 'action-lib');
  document.getElementById('action-modal-overlay').classList.add('show');
}
async function saveAction(actionId){
  const name=document.getElementById('a-name').value.trim();
  if(!name){showToast('动作名不能为空','error');return;}
  const icon=document.getElementById('a-icon').value.trim()||'📦';
  const steps=_stepEditor.collect();
  _stripIds(steps); // 入库前去掉 id，避免重复使用后 id 冲突
  if(!steps.length){showToast('至少需要1个步骤','error');return;}
  const data={name:name,icon:icon,steps:steps};
  if(actionId){
    const r=await apiPut('/api/custom_actions/'+actionId,data);
    handleResult(r,()=>{_stepEditor.clearDraft();closeActionModal();loadCustomActions();});
  }else{
    const r=await apiPost('/api/custom_actions',data);
    handleResult(r,()=>{_stepEditor.clearDraft();closeActionModal();loadCustomActions();});
  }
}
async function deleteAction(id){
  if(!confirm('确认删除此动作？'))return;
  const r=await apiDelete('/api/custom_actions/'+id);
  handleResult(r,()=>loadCustomActions());
}
function closeActionModal(){
  document.getElementById('action-modal-overlay').classList.remove('show');
}