test

js/blog.js

@@ -105,6 +105,56 @@ function formatDate(date) {
   }).format(date);
 }
 
+// ---------- new preview logic ----------
+function getPreviewText(body) {
+  const maxLen = 300;
+  if (body.length <= maxLen) {
+    return { preview: body, isTruncated: false };
+  }
+
+  // Try to use first 3 non‑empty lines
+  const lines = body.split('\n').filter(line => line.trim() !== '');
+  if (lines.length >= 3) {
+    const firstThree = lines.slice(0, 3);
+    const combined = firstThree.join('\n');
+    if (combined.length < maxLen) {
+      return { preview: combined, isTruncated: true };
+    }
+  }
+
+  // Try to use first 3 sentences
+  const sentenceEnd = /[.!?]+\s*/g;
+  const sentences = [];
+  let match;
+  let lastIndex = 0;
+  while ((match = sentenceEnd.exec(body)) !== null && sentences.length < 3) {
+    const end = match.index + match[0].length;
+    const sentence = body.slice(lastIndex, end).trim();
+    if (sentence) sentences.push(sentence);
+    lastIndex = end;
+  }
+  if (sentences.length >= 3) {
+    const combined = sentences.join(' ');
+    if (combined.length < maxLen) {
+      return { preview: combined, isTruncated: true };
+    }
+  }
+
+  // Fallback: take first maxLen chars, cut at last sentence boundary if possible
+  let cut = maxLen;
+  const firstPart = body.slice(0, maxLen);
+  const lastPunct = firstPart.search(/[.!?](?=\s|$)/g);
+  if (lastPunct !== -1 && lastPunct + 1 < maxLen) {
+    cut = lastPunct + 1;
+  } else {
+    // cut at last space
+    const lastSpace = firstPart.lastIndexOf(' ');
+    if (lastSpace > 0) cut = lastSpace;
+  }
+  return { preview: body.slice(0, cut) + '…', isTruncated: true };
+}
+// ---------------------------------------
+
 function createParagraphs(body) {
   return body
     .split(/\n{2,}/)
@@ -122,6 +172,13 @@ function createParagraphs(body) {
     });
 }
 
+function renderPlainText(text) {
+  // Used for preview – shows text with line breaks, no attachment links
+  const escaped = escapeHtml(text);
+  const lines = escaped.split('\n');
+  return lines.join('<br>');
+}
+
 function renderBlogEntries(entries) {
   const container = document.querySelector('.blog-feed');
   container.innerHTML = '';
@@ -143,17 +200,57 @@ function renderBlogEntries(entries) {
     meta.className = 'blog-meta';
     meta.textContent = entry.date ? formatDate(entry.date) : entry.dateLabel || 'Date not provided';
 
-    const body = document.createElement('div');
+    // ----- content area with preview & full -----
-    body.className = 'blog-body';
+    const contentWrapper = document.createElement('div');
+    contentWrapper.className = 'blog-content';
+
+    const { preview, isTruncated } = getPreviewText(entry.body);
+
+    // Preview (only shown when truncated)
+    const previewDiv = document.createElement('div');
+    previewDiv.className = 'blog-preview';
+    if (isTruncated) {
+      previewDiv.innerHTML = renderPlainText(preview);
+      contentWrapper.appendChild(previewDiv);
+    }
+
+    // Full body (always created, hidden initially if truncated)
+    const fullDiv = document.createElement('div');
+    fullDiv.className = 'blog-full';
+    if (isTruncated) {
+      fullDiv.style.display = 'none';
+    }
     const paragraphs = createParagraphs(entry.body);
     if (!paragraphs.length) {
       const empty = document.createElement('p');
       empty.textContent = 'No content yet.';
-      body.appendChild(empty);
+      fullDiv.appendChild(empty);
     } else {
-      paragraphs.forEach((p) => body.appendChild(p));
+      paragraphs.forEach((p) => fullDiv.appendChild(p));
+    }
+    contentWrapper.appendChild(fullDiv);
+
+    // Toggle link (only if truncated)
+    if (isTruncated) {
+      const toggle = document.createElement('a');
+      toggle.href = '#';
+      toggle.className = 'blog-toggle';
+      toggle.textContent = 'Read more';
+      toggle.addEventListener('click', (e) => {
+        e.preventDefault();
+        const isExpanded = fullDiv.style.display !== 'none';
+        fullDiv.style.display = isExpanded ? 'none' : 'block';
+        previewDiv.style.display = isExpanded ? 'block' : 'none';
+        toggle.textContent = isExpanded ? 'Read more' : 'Collapse';
+      });
+      contentWrapper.appendChild(toggle);
     }
 
+    article.appendChild(title);
+    article.appendChild(meta);
+    article.appendChild(contentWrapper);
+
+    // Attachments (always visible)
     if (entry.attachments && entry.attachments.length) {
       const attachTitle = document.createElement('div');
       attachTitle.className = 'blog-meta';
@@ -174,9 +271,6 @@ function renderBlogEntries(entries) {
       article.appendChild(list);
     }
 
-    article.appendChild(title);
-    article.appendChild(meta);
-    article.appendChild(body);
     container.appendChild(article);
   });
 }