// Workspace notes, transfers, recalls and historical message search.
function updateAdminTools(){
    document.getElementById('transfer-session').disabled = !curSid || Boolean(sendingSid) || Boolean(closingSid);
    document.getElementById('agent-emoji-toggle').disabled = !curSid || Boolean(sendingSid) || Boolean(closingSid);
    document.getElementById('noteInput').disabled = !curSid || Boolean(sessions[curSid].noteLoading);
    document.getElementById('note-save').disabled = !curSid || !sessions[curSid].noteLoaded || Boolean(sessions[curSid].noteLoading);
}

async function loadSessionNote(sid){
    const session = sessions[sid];
    const input = document.getElementById('noteInput');
    input.value = session.noteDraft || '';
    if(session.noteLoaded){ updateAdminTools(); return; }
    session.noteLoading = true;
    updateAdminTools();
    try{
        const state = await adminRequest('/api/human/poll?sid='+Number(sid)+'&after=0');
        if(sessions[sid] !== session) return;
        session.noteDraft = state.note || '';
        session.noteLoaded = true;
        if(curSid === sid) input.value = session.noteDraft;
    }catch(error){
        if(curSid === sid) setReplyStatus('备注加载失败，请重新选择会话后重试。', true);
    }finally{
        session.noteLoading = false;
        updateAdminTools();
    }
}

async function saveNote(){
    if(!curSid || !sessions[curSid].noteLoaded) return;
    const sid = curSid, session = sessions[sid];
    const note = document.getElementById('noteInput').value;
    session.noteDraft = note;
    try{
        await postAdmin('/api/human/note', {sid:Number(sid), note:note});
        if(curSid === sid) setReplyStatus(session.noteDraft === note ? '备注已保存' : '先前备注已保存，当前修改尚未保存');
    }catch(error){
        if(curSid === sid) setReplyStatus('备注保存失败，内容已保留。', true);
    }
}

async function transferSession(){
    if(!curSid || closingSid || sendingSid) return;
    if(!window.confirm('确定转接这个对话？转接后其他客服可在排队列表接入。')) return;
    const sid = curSid;
    closingSid = sid;
    updateComposer();
    try{
        await postAdmin('/api/human/transfer', {sid:Number(sid)});
        delete sessions[sid];
        if(curSid === sid) showEmptySession();
        renderList();
        loadQueue();
    }catch(error){
        if(curSid === sid) setReplyStatus('转接未成功，会话仍保留。', true);
    }finally{
        closingSid = '';
        updateComposer();
    }
}

function applyAdminRecall(sid, mid){
    const message = sessions[sid].msgs.find(function(item){ return item.id === mid; });
    if(message){ message.side = 'system'; message.content = '该消息已撤回'; }
    if(curSid === sid){
        const row = document.querySelector('#chatBox [data-message-id="'+Number(mid)+'"]');
        if(row){ row.className = 'msg system-msg'; row.textContent = '该消息已撤回'; }
    }
    return Boolean(message);
}

async function recallMsg(mid){
    if(!curSid) return;
    const sid = curSid;
    try{
        await postAdmin('/api/human/recall', {mid:mid});
        if(sessions[sid]){ applyAdminRecall(sid, mid); renderList(); }
    }catch(error){
        if(curSid === sid) setReplyStatus('撤回失败，请稍后重试。', true);
    }
}

let searchVersion = 0;
async function doSearch(){
    const keyword = document.getElementById('searchBox').value.trim();
    const version = ++searchVersion;
    const body = document.getElementById('searchBody');
    if(!keyword){ body.textContent = '请输入关键词搜索历史消息'; return; }
    body.textContent = '正在搜索…';
    try{
        const list = await adminRequest('/api/search_chat?q='+encodeURIComponent(keyword));
        if(version !== searchVersion) return;
        const roles = {user:'客户', assistant:'客服', system:'系统'};
        body.innerHTML = list.length ? list.map(function(item){
            return '<article class="search-result"><h3>'+escapeText(item.title)+'</h3><p>'+escapeText(item.content)+'</p><small>'+escapeText(roles[item.role] || item.role)+' · '+escapeText(item.ctime)+'</small></article>';
        }).join('') : '没有匹配的历史消息';
    }catch(error){
        if(version === searchVersion) body.textContent = '搜索失败，请稍后重试';
    }
}

document.getElementById('history-search-toggle').onclick = function(){
    document.getElementById('searchResult').showModal();
    document.getElementById('searchBox').focus();
};
document.getElementById('search-close').onclick = function(){ document.getElementById('searchResult').close(); };
document.getElementById('history-search-form').addEventListener('submit', function(event){ event.preventDefault(); doSearch(); });
document.getElementById('note-save').onclick = saveNote;
document.getElementById('noteInput').addEventListener('input', function(){
    if(curSid) sessions[curSid].noteDraft = this.value;
});
document.getElementById('notifications-toggle').onclick = function(){ SupportUI.enableNotifications(this); };
function updateNightBadge(){
    const hour = new Date().getHours();
    document.getElementById('nightBadge').hidden = hour >= 8 && hour < 22;
}
updateNightBadge();
setInterval(updateNightBadge, 60000);