Update app.js

public/app.js

@@ -1,6 +1,12 @@
+/* ============================================================
+   Self-Organizing Static Site Framework  v2.4  (Local Libs)
+   ============================================================ */
+
 let INDEX, CURRENT_PATH = null, PATH_TO_EL = new Map();
+
 const treeEl    = document.getElementById("tree");
 const mdView    = document.getElementById("mdView");
+const mdWarn    = document.getElementById("mdWarn");
 const htmlView  = document.getElementById("htmlView");
 const metaLine  = document.getElementById("meta");
 const sortSel   = document.getElementById("sort");
@@ -12,26 +18,42 @@ const sidebar = document.querySelector(".sidebar");
 const navToggle = document.getElementById("navToggle");
 const overlay   = document.querySelector(".overlay");
 
+/* Sidebar toggle */
 navToggle.addEventListener("click", () => sidebar.classList.toggle("open"));
 overlay.addEventListener("click",  () => sidebar.classList.remove("open"));
 
+/* Load index */
 async function loadIndex() {
+  // No CDN race now; libs are local. Still, surface diagnostics:
+  if (!window.marked) console.warn("⚠️ marked.js not detected.");
+  if (!window.DOMPurify) console.warn("⚠️ DOMPurify not detected.");
+
   const res = await fetch("/index.json", { cache: "no-store" });
   INDEX = await res.json();
   populateFilters();
   rebuildTree();
-  window.addEventListener("popstate", () => { const hp = location.hash.startsWith("#=") ? location.hash.slice(2) : null; if (hp) openPath(hp); });
+
-  const init = location.hash.startsWith("#=") ? location.hash.slice(2) : INDEX.flat.sort((a, b) => b.mtime - a.mtime)[0]?.path;
+  window.addEventListener("popstate", () => {
+    const hp = location.hash.startsWith("#=") ? location.hash.slice(2) : null;
+    if (hp) openPath(hp);
+  });
+
+  const init = location.hash.startsWith("#=")
+    ? location.hash.slice(2)
+    : INDEX.flat.sort((a,b)=>b.mtime-a.mtime)[0]?.path;
+
   openPath(init);
 }
+
 function populateFilters() {
   filterSel.innerHTML = '<option value="all">All</option>';
   for (const cat of INDEX.sections) {
-    const opt = document.createElement("option");
+    const o = document.createElement("option");
-    opt.value = opt.textContent = cat;
+    o.value = o.textContent = cat;
-    filterSel.appendChild(opt);
+    filterSel.appendChild(o);
   }
 }
+
 function rebuildTree() {
   treeEl.innerHTML = "";
   PATH_TO_EL.clear();
@@ -39,66 +61,71 @@ function rebuildTree() {
   const sort   = sortSel.value;
   const query  = searchBox.value.trim().toLowerCase();
   const root   = { type: "dir", children: INDEX.tree };
-  const pruned = filterTree(root, f => (filter === "all" || f.path.split("/")[0] === filter) && (!query || (f.title || f.name).toLowerCase().includes(query)));
+  const pruned = filterTree(root, f =>
+    (filter==="all" || f.path.split("/")[0]===filter) &&
+    (!query || (f.title||f.name).toLowerCase().includes(query))
+  );
   sortDir(pruned, sort);
   for (const c of pruned.children) treeEl.appendChild(renderNode(c));
   treeEl.querySelectorAll(".dir").forEach(d => d.classList.add("open"));
 }
+
 function filterTree(node, keep) {
   if (node.type === "file") return keep(node) ? node : null;
   const kids = node.children.map(c=>filterTree(c,keep)).filter(Boolean);
   return kids.length ? {...node, children:kids} : null;
 }
 function sortDir(node, sort) {
-  const cmp = sort === "name" ? (a, b) => a.name.localeCompare(b.name) :
+  const cmp = sort==="name" ? (a,b)=>a.name.localeCompare(b.name)
-              sort === "old" ? (a, b) => a.mtime - b.mtime : (a, b) => b.mtime - a.mtime;
+            : sort==="old" ? (a,b)=>a.mtime-b.mtime
-  node.children.sort((a, b) => (a.type === "dir" && b.type !== "dir") ? -1 : (a.type !== "dir" && b.type === "dir") ? 1 : cmp(a, b));
+            : (a,b)=>b.mtime-a.mtime;
+  node.children.sort((a,b)=>
+    (a.type==="dir"&&b.type!=="dir")?-1:
+    (a.type!=="dir"&&b.type==="dir")?1:cmp(a,b));
   node.children.forEach(c=>c.type==="dir"&&sortDir(c,sort));
 }
-function renderNode(node) {
+function renderNode(n) {
-  if (node.type === "dir") {
+  if (n.type==="dir") {
-    const div = document.createElement("div");
+    const d = document.createElement("div");
-    div.className = "dir";
+    d.className="dir"; d.setAttribute("aria-expanded","false");
-    div.setAttribute("aria-expanded", "false");
     const lbl=document.createElement("span");
-    lbl.className = "label";
+    lbl.className="label"; lbl.textContent=n.name||"/";
-    lbl.textContent = node.name || "/";
     lbl.addEventListener("click",()=>{
-      const idx = node.children.find(c => c.type === "file" && /^index\.(md|html)$/i.test(c.name));
+      const idx=n.children.find(c=>c.type==="file"&&/^index\.(md|html)$/i.test(c.name));
-      if (idx) openPath(idx.path);
+      if(idx) openPath(idx.path); else d.classList.toggle("open");
-      else div.classList.toggle("open");
     });
-    div.appendChild(lbl);
+    d.appendChild(lbl);
     const kids=document.createElement("div");
     kids.className="children";
-    node.children.forEach(c => kids.appendChild(renderNode(c)));
+    n.children.forEach(c=>kids.appendChild(renderNode(c)));
-    div.appendChild(kids);
+    d.appendChild(kids);
-    return div;
+    return d;
   }
   const a=document.createElement("a");
   a.className="file";
-  a.innerHTML = `${node.pinned ? '<span class="pin">📌</span>' : ''}${iconForExt(node.ext)} ${node.title} <span class="meta">(${fmtDate(node.mtime)} · ${node.name})</span>`;
+  a.innerHTML=`${n.pinned?'📌 ':''}${iconForExt(n.ext)} ${n.title}
-  a.addEventListener("click", e => { e.preventDefault(); openPath(node.path); });
+               <span class="meta">(${fmtDate(n.mtime)} · ${n.name})</span>`;
-  PATH_TO_EL.set(node.path, a);
+  a.addEventListener("click",e=>{e.preventDefault();openPath(n.path);});
+  PATH_TO_EL.set(n.path,a);
   return a;
 }
 function iconForExt(ext){return ext===".md"?"📝":"🧩";}
 function fmtDate(ms){return new Date(ms).toISOString().slice(0,10);}
-function findDir(path) {
+
-  path = path.replace(/\/$/, '');
+function findDir(p){
-  function search(node) {
+  p=p.replace(/\/$/,'');
-    if (node.type === "dir" && node.path === path) return node;
+  function search(n){
-    for (const c of node.children || []) {
+    if(n.type==="dir"&&n.path===p) return n;
-      const found = search(c);
+    for(const c of n.children||[]){const f=search(c);if(f)return f;}
-      if (found) return found;
-    }
   }
   return search({children:INDEX.tree});
 }
+
 async function openPath(path){
   if(path===CURRENT_PATH) return;
   CURRENT_PATH=path;
   if(location.hash!==`#=${path}`) history.pushState(null,"",`#=${path}`);
+
   let f=INDEX.flat.find(x=>x.path===path);
   if(!f){
     const dir=findDir(path);
@@ -109,51 +136,63 @@ async function openPath(path) {
     metaLine.textContent="Path not found: "+path;
     return;
   }
+
   metaLine.textContent=`${f.pinned?"📌 ":""}${fmtDate(f.mtime)} • ${f.name}`;
+
   if(f.ext===".md") await renderMarkdown(f.path);
   else renderHTML(f.path);
+
   setActive(path);
   updatePager();
   if(window.innerWidth<900) sidebar.classList.remove("open");
 }
+
+/* ---------- Markdown (robust) ---------- */
 async function renderMarkdown(path){
-  mdView.innerHTML = "<p style='color:var(--muted);font-style:italic;'>Loading…</p>";
+  mdWarn.style.display = "none";
-  mdView.style.display = "block";
+  mdView.innerHTML="<p class='loading-note'>Loading…</p>";
   htmlView.style.display="none";
+  mdView.style.display="block";
+
   try{
-    const res = await fetch("/" + path);
+    const res=await fetch("/"+path, { cache: "no-store" });
     if(!res.ok) throw new Error("File not found: "+path);
     const text=await res.text();
-    let html = text.replace(/&/g, '&amp;').replace(/</g, '&lt;');
+
-    let usedFallback = true;
+    let usedFallback = false;
+    let html;
+
     if (window.marked) {
       html = window.marked.parse(text);
-      usedFallback = false;
+    } else {
+      // explicit, visible signal
+      usedFallback = true;
+      html = text.replace(/&/g,"&amp;").replace(/</g,"&lt;");
     }
-    let safe = html;
+
-    if (window.DOMPurify) safe = window.DOMPurify.sanitize(html);
+    const safe = window.DOMPurify ? window.DOMPurify.sanitize(html) : html;
+
     requestAnimationFrame(()=>{
       mdView.innerHTML = safe;
       mdView.scrollTop = 0;
       mdView.classList.add("fade-in");
+      mdView.style.display = "block";
+      if (usedFallback) mdWarn.style.display = "block";
     });
-    if (usedFallback) console.warn("Markdown rendered as plain text: marked.js not loaded. Check CDN or vendor locally.");
+
   }catch(e){
     mdView.innerHTML=`<p style='color:red;'>${e.message}</p>`;
   }
 }
+
+/* ---------- HTML ---------- */
 function renderHTML(path){
-  htmlView.style.display = "none";
-  mdView.style.display = "none";
-  metaLine.innerHTML += " <span style='color:var(--muted);'>Loading…</span>";
   htmlView.src="/"+path;
-  htmlView.onload = () => {
   htmlView.style.display="block";
-    htmlView.classList.add("fade-in");
+  mdView.style.display="none";
-    metaLine.innerHTML = metaLine.innerHTML.replace(" Loading…", "");
-  };
-  htmlView.onerror = () => metaLine.innerHTML += " <span style='color:red;'>Load failed.</span>";
 }
+
+/* ---------- Active + Pager ---------- */
 function setActive(path){
   document.querySelectorAll(".file.active").forEach(el=>el.classList.remove("active"));
   const el=PATH_TO_EL.get(path);
@@ -167,10 +206,14 @@ function setActive(path) {
   }
 }
 function updatePager(){
-  const query = searchBox.value.trim().toLowerCase();
+  const q=searchBox.value.trim().toLowerCase();
-  const list = INDEX.flat.filter(f => (filterSel.value === "all" || f.path.split("/")[0] === filterSel.value) && (!query || f.title.toLowerCase().includes(query)));
+  const list=INDEX.flat.filter(f=>
-  const cmp = sortSel.value === "name" ? (a, b) => a.name.localeCompare(b.name) :
+    (filterSel.value==="all"||f.path.split("/")[0]===filterSel.value)&&
-              sortSel.value === "old" ? (a, b) => a.mtime - b.mtime : (a, b) => b.mtime - a.mtime;
+    (!q||f.title.toLowerCase().includes(q))
+  );
+  const cmp=sortSel.value==="name"?(a,b)=>a.name.localeCompare(b.name)
+            :sortSel.value==="old"?(a,b)=>a.mtime-b.mtime
+            :(a,b)=>b.mtime-a.mtime;
   list.sort(cmp);
   const i=list.findIndex(x=>x.path===CURRENT_PATH);
   prevBtn.disabled=i<=0;
@@ -178,10 +221,17 @@ function updatePager() {
   prevBtn.onclick=()=>i>0&&openPath(list[i-1].path);
   nextBtn.onclick=()=>i<list.length-1&&openPath(list[i+1].path);
 }
+
+/* Controls */
 let searchTimer;
-searchBox.addEventListener("input", () => { clearTimeout(searchTimer); searchTimer = setTimeout(rebuildTree, 300); });
+searchBox.addEventListener("input",()=>{
+  clearTimeout(searchTimer);
+  searchTimer=setTimeout(rebuildTree,300);
+});
 sortSel.addEventListener("change",rebuildTree);
 filterSel.addEventListener("change",rebuildTree);
+
+/* Internal link interception */
 document.body.addEventListener("click",e=>{
   const a=e.target.closest("a[href]");
   if(!a) return;
@@ -191,5 +241,6 @@ document.body.addEventListener("click", e => {
     openPath(href.replace(/^\//,""));
   }
 });
+
 window.addEventListener("resize",()=>{ if(window.innerWidth<900) sidebar.classList.remove("open"); });
 window.addEventListener("DOMContentLoaded",loadIndex);