render

flask_logic/renderer.py

@@ -92,4 +92,37 @@ def collect_css(context):
         if css:
             css_files.append(css)
 
-    return css_files
+    return css_files
+
+def generate_preview(content, max_length=200):
+    if isinstance(content, str):
+        # old system
+        text = re.sub(r"<[^>]+>", "", content)  # strip HTML
+        return text[:max_length]
+
+    elif isinstance(content, list):
+        # new system
+        for block in content:
+            if block.get("type") == "text":
+                text = re.sub(r"<[^>]+>", "", block.get("value", ""))
+                return text[:max_length]
+
+    return ""
+
+# optinal, for images
+def generate_preview_html(content, context=None):
+    if isinstance(content, list):
+        for block in content:
+            if block.get("type") == "text":
+                return f"<div class='blog-preview'>{block.get('value')}</div>"
+
+            elif block.get("type") in COMPONENTS:
+                # optional: allow image preview
+                render_func = COMPONENTS[block["type"]]["render"]
+                kwargs = {k: v for k, v in block.items() if k != "type"}
+                return render_func(**kwargs, context=context)
+
+    elif isinstance(content, str):
+        return content[:200]
+
+    return ""