discussions.js

/* ========================================
   PHOTON CORE — discussions.js
   ======================================== */

function listenDiscussions(){
    db.collection('discussions').orderBy('timestamp','desc').limit(100).onSnapshot(snap=>{state.discussions=[];snap.forEach(doc=>state.discussions.push({id:doc.id,...doc.data()}));renderDiscussions();if(dom.statDiscussions)dom.statDiscussions.textContent=state.discussions.length});
}

async function postDiscussion(){
    if(!dom.discussionTitle||!dom.discussionBody)return;
    const t=dom.discussionTitle.value.trim(),b=dom.discussionBody.value.trim();
    if(!t||!b){showToast('Fill both fields.','error');return}
    await db.collection('discussions').add({title:t,body:b,category:dom.discussionCategory.value,author:state.user?.username||'Anon',timestamp:new Date().toISOString(),likes:0});
    addActivity('💬 '+state.user?.username+': "'+t+'"');dom.discussionTitle.value='';dom.discussionBody.value='';showToast('Posted!','success');
}

function renderDiscussions(){
    if(!dom.discussionsList)return;
    const f=state.currentFilter==='all'?state.discussions:state.discussions.filter(d=>d.category===state.currentFilter);
    if(!f.length){dom.discussionsList.innerHTML='<div class="empty-state"><span class="empty-icon">💬</span><p>No discussions.</p></div>';return}
    const lb={general:'💭','game-design':'🎮',art:'🎨',code:'💻',marketing:'📢',bugs:'🐛'};
    dom.discussionsList.innerHTML=f.map(d=>'<div class="discussion-post"><div class="discussion-post-header"><div class="discussion-author-avatar">'+(d.author||'?').substring(0,2).toUpperCase()+'</div><div class="discussion-meta"><span class="discussion-author">'+esc(d.author)+'</span><span class="discussion-date">'+fmtDate(d.timestamp)+'</span></div><span class="discussion-category-tag">'+(lb[d.category]||'💭')+' '+d.category+'</span></div><div class="discussion-title">'+esc(d.title)+'</div><div class="discussion-body">'+esc(d.body)+'</div><div class="discussion-actions"><button class="discussion-action-btn" onclick="likeDisc(\''+d.id+'\')">❤️ '+(d.likes||0)+'</button><button class="discussion-action-btn" onclick="deleteDisc(\''+d.id+'\')">🗑️</button></div></div>').join('');
}

async function likeDisc(id){await db.collection('discussions').doc(id).update({likes:firebase.firestore.FieldValue.increment(1)})}
async function deleteDisc(id){if(!confirm('Delete?'))return;await db.collection('discussions').doc(id).delete();showToast('Deleted.','info')}