Initial commit

blog_manager.py

@@ -0,0 +1,92 @@
+import json
+import os
+from datetime import datetime
+
+
+class BlogManager:
+    def __init__(self, data_file='data/blog_posts.json'):
+        self.data_file = data_file
+        self.ensure_data_file()
+
+    def ensure_data_file(self):
+        """Ensure the data file and directory exist"""
+        os.makedirs(os.path.dirname(self.data_file), exist_ok=True)
+        if not os.path.exists(self.data_file):
+            with open(self.data_file, 'w') as f:
+                json.dump([], f)
+
+    def load_posts(self):
+        """Load all blog posts"""
+        try:
+            with open(self.data_file, 'r') as f:
+                return json.load(f)
+        except (FileNotFoundError, json.JSONDecodeError):
+            return []
+
+    def save_posts(self, posts):
+        """Save all blog posts"""
+        with open(self.data_file, 'w') as f:
+            json.dump(posts, f, indent=2)
+
+    def get_next_id(self):
+        """Get the next available ID"""
+        posts = self.load_posts()
+        if not posts:
+            return 1
+        return max(post['id'] for post in posts) + 1
+
+    def create_post(self, title, content, category, excerpt=None):
+        """Create a new blog post"""
+        posts = self.load_posts()
+
+        # Auto-generate excerpt if not provided
+        if not excerpt:
+            excerpt = content[:150] + "..." if len(content) > 150 else content
+
+        new_post = {
+            'id': self.get_next_id(),
+            'title': title,
+            'content': content,
+            'excerpt': excerpt,
+            'category': category,
+            'date': datetime.now().strftime('%Y-%m-%d'),
+            'created_at': datetime.now().isoformat()
+        }
+
+        posts.append(new_post)
+        self.save_posts(posts)
+        return new_post
+
+    def get_post(self, post_id):
+        """Get a specific post by ID"""
+        posts = self.load_posts()
+        return next((p for p in posts if p['id'] == post_id), None)
+
+    def update_post(self, post_id, title, content, category, excerpt=None):
+        """Update an existing post"""
+        posts = self.load_posts()
+        post = next((p for p in posts if p['id'] == post_id), None)
+
+        if not post:
+            return None
+
+        if not excerpt:
+            excerpt = content[:150] + "..." if len(content) > 150 else content
+
+        post.update({
+            'title': title,
+            'content': content,
+            'excerpt': excerpt,
+            'category': category,
+            'updated_at': datetime.now().isoformat()
+        })
+
+        self.save_posts(posts)
+        return post
+
+    def delete_post(self, post_id):
+        """Delete a post"""
+        posts = self.load_posts()
+        posts = [p for p in posts if p['id'] != post_id]
+        self.save_posts(posts)
+        return True