chore: automatic commit 2025-04-30 12:48

utils/__init__.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Utility functions for the website application.
+This package contains various utilities for database management,
+user management, and server administration.
+"""
+
+# Import utilities that don't depend on app.py first
+from .db_check import check_db_connection, initialize_db_if_needed
+
+# Define the list of all available utilities
+__all__ = [
+    # Database utilities
+    'check_db_connection',
+    'initialize_db_if_needed',
+    'fix_database_schema',
+    'rebuild_database',
+    'test_database_connection',
+    'test_models',
+    'print_database_stats',
+    'run_all_tests',
+    
+    # User management
+    'list_users',
+    'create_user',
+    'reset_password',
+    'delete_user',
+    'create_admin_user',
+    
+    # Server management
+    'run_development_server',
+]
+
+# Import remaining modules that might depend on app
+from .db_fix import fix_database_schema
+from .db_rebuild import rebuild_database
+from .db_test import test_database_connection, test_models, print_database_stats, run_all_tests
+from .user_manager import list_users, create_user, reset_password, delete_user, create_admin_user
+from .server import run_development_server 

utils/db_check.py

@@ -0,0 +1,79 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+from flask import current_app
+from sqlalchemy.exc import SQLAlchemyError
+from sqlalchemy import text
+import time
+
+def check_db_connection(db):
+    """
+    Überprüft die Datenbankverbindung und versucht ggf. die Verbindung wiederherzustellen
+    
+    Args:
+        db: SQLAlchemy-Instanz
+        
+    Returns:
+        bool: True, wenn die Verbindung erfolgreich ist, sonst False
+    """
+    max_retries = 3
+    retry_count = 0
+    
+    while retry_count < max_retries:
+        try:
+            # Führe eine einfache Abfrage durch, um die Verbindung zu testen
+            with current_app.app_context():
+                db.session.execute(text('SELECT 1'))
+            return True
+        except SQLAlchemyError as e:
+            retry_count += 1
+            print(f"DB-Verbindungsfehler (Versuch {retry_count}/{max_retries}): {str(e)}")
+            
+            if retry_count < max_retries:
+                # Warte vor dem nächsten Versuch
+                time.sleep(1)
+                
+                # Versuche die Verbindung zurückzusetzen
+                try:
+                    db.session.rollback()
+                except:
+                    pass
+    
+    return False
+
+def initialize_db_if_needed(db, initialize_function=None):
+    """
+    Initialisiert die Datenbank, falls erforderlich
+    
+    Args:
+        db: SQLAlchemy-Instanz
+        initialize_function: Funktion, die aufgerufen wird, um die Datenbank zu initialisieren
+        
+    Returns:
+        bool: True, wenn die Datenbank bereit ist, sonst False
+    """
+    # Prüfe die Verbindung
+    if not check_db_connection(db):
+        return False
+    
+    # Prüfe, ob die Tabellen existieren
+    try:
+        with current_app.app_context():
+            # Führe eine Testabfrage auf einer Tabelle durch
+            db.session.execute(text('SELECT COUNT(*) FROM user'))
+    except SQLAlchemyError:
+        # Tabellen existieren nicht, erstelle sie
+        try:
+            with current_app.app_context():
+                db.create_all()
+                
+                # Rufe die Initialisierungsfunktion auf, falls vorhanden
+                if initialize_function and callable(initialize_function):
+                    initialize_function()
+                    
+                return True
+        except Exception as e:
+            print(f"Fehler bei DB-Initialisierung: {str(e)}")
+            return False
+    
+    return True 

utils/db_fix.py

@@ -0,0 +1,78 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import os
+import sqlite3
+from datetime import datetime
+import sys
+import importlib.util
+
+# Add the parent directory to path so we can import the app
+parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, parent_dir)
+
+from app import app, db_path
+from models import db
+
+def ensure_db_dir():
+    """Make sure the database directory exists."""
+    os.makedirs(os.path.dirname(db_path), exist_ok=True)
+
+def fix_database_schema():
+    """Fix the database schema by adding missing columns."""
+    with app.app_context():
+        # Ensure directory exists
+        ensure_db_dir()
+        
+        # Check if database exists, create tables if needed
+        if not os.path.exists(db_path):
+            print("Database doesn't exist. Creating all tables from scratch...")
+            db.create_all()
+            print("Database tables created successfully!")
+            return
+        
+        # Connect to existing database
+        print(f"Connecting to database: {db_path}")
+        conn = sqlite3.connect(db_path)
+        cursor = conn.cursor()
+        
+        # Check if User table exists
+        cursor.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='user'")
+        if not cursor.fetchone():
+            print("User table doesn't exist. Creating all tables from scratch...")
+            conn.close()
+            db.create_all()
+            print("Database tables created successfully!")
+            return
+        
+        # Check existing columns
+        cursor.execute("PRAGMA table_info(user)")
+        columns = cursor.fetchall()
+        column_names = [col[1] for col in columns]
+        print("Existing columns in User table:", column_names)
+        
+        # Add missing columns
+        if 'created_at' not in column_names:
+            print("Adding 'created_at' column to User table...")
+            cursor.execute("ALTER TABLE user ADD COLUMN created_at TIMESTAMP")
+        
+        if 'last_login' not in column_names:
+            print("Adding 'last_login' column to User table...")
+            cursor.execute("ALTER TABLE user ADD COLUMN last_login TIMESTAMP")
+        
+        if 'avatar' not in column_names:
+            print("Adding 'avatar' column to User table...")
+            cursor.execute("ALTER TABLE user ADD COLUMN avatar VARCHAR(200)")
+        
+        if 'bio' not in column_names:
+            print("Adding 'bio' column to User table...")
+            cursor.execute("ALTER TABLE user ADD COLUMN bio TEXT")
+        
+        # Commit the changes
+        conn.commit()
+        conn.close()
+        print("Database schema updated successfully!")
+        return True
+
+if __name__ == "__main__":
+    fix_database_schema() 

utils/db_rebuild.py

@@ -0,0 +1,91 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import os
+import sqlite3
+from datetime import datetime
+import sys
+import importlib.util
+
+# Add the parent directory to path so we can import the app
+parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, parent_dir)
+
+# Import models directly to avoid circular import
+from models import db, User, Category
+
+def rebuild_database(app_instance=None):
+    """Completely rebuilds the database by dropping and recreating all tables."""
+    if app_instance is None:
+        # Only import app if it's not provided as a parameter
+        from app import app as app_instance
+        from app import db_path
+    else:
+        # Get db_path from app_instance config
+        db_path = app_instance.config['SQLALCHEMY_DATABASE_URI'].replace('sqlite:///', '')
+    
+    with app_instance.app_context():
+        print(f"Database path: {db_path}")
+        
+        # Back up existing database if it exists
+        if os.path.exists(db_path):
+            backup_path = db_path + '.backup'
+            try:
+                import shutil
+                shutil.copy2(db_path, backup_path)
+                print(f"Backed up existing database to {backup_path}")
+            except Exception as e:
+                print(f"Warning: Could not create backup - {str(e)}")
+        
+        # Ensure directory exists
+        os.makedirs(os.path.dirname(db_path), exist_ok=True)
+        
+        # Drop all tables and recreate them
+        print("Dropping all tables...")
+        db.drop_all()
+        
+        print("Creating all tables...")
+        db.create_all()
+        
+        # Create admin user
+        print("Creating admin user...")
+        admin = User(
+            username='admin',
+            email='admin@example.com',
+            is_admin=True,
+            created_at=datetime.utcnow()
+        )
+        admin.set_password('admin')
+        db.session.add(admin)
+        
+        # Create regular user
+        print("Creating regular user...")
+        user = User(
+            username='user',
+            email='user@example.com',
+            is_admin=False,
+            created_at=datetime.utcnow()
+        )
+        user.set_password('user')
+        db.session.add(user)
+        
+        try:
+            # Commit to generate user IDs
+            db.session.commit()
+            print("Users created successfully!")
+            
+            # Create default categories
+            print("Creating default categories...")
+            # Instead of directly importing create_default_categories, call it through app_instance
+            create_default_categories_func = getattr(sys.modules['app'], 'create_default_categories')
+            create_default_categories_func()
+            
+            print("Database rebuild completed successfully!")
+            return True
+        except Exception as e:
+            db.session.rollback()
+            print(f"Error during database rebuild: {str(e)}")
+            raise
+
+if __name__ == "__main__":
+    rebuild_database() 

utils/db_test.py

@@ -0,0 +1,120 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import os
+import sys
+import sqlite3
+
+# Add the parent directory to path so we can import the app
+parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, parent_dir)
+
+from app import app, db_path
+from models import db, User, Thought, MindMapNode, Category
+
+def test_database_connection():
+    """Test if the database exists and can be connected to."""
+    try:
+        if not os.path.exists(db_path):
+            print(f"Database file does not exist: {db_path}")
+            return False
+        
+        conn = sqlite3.connect(db_path)
+        cursor = conn.cursor()
+        cursor.execute("PRAGMA integrity_check")
+        result = cursor.fetchone()
+        conn.close()
+        
+        if result and result[0] == "ok":
+            print(f"Database integrity check passed: {db_path}")
+            return True
+        else:
+            print(f"Database integrity check failed: {result}")
+            return False
+    except Exception as e:
+        print(f"Error testing database connection: {e}")
+        return False
+
+def test_models():
+    """Test if all models are properly defined and can be queried."""
+    with app.app_context():
+        try:
+            print("\nTesting User model...")
+            user_count = User.query.count()
+            print(f"  Found {user_count} users")
+            
+            print("\nTesting Category model...")
+            category_count = Category.query.count()
+            print(f"  Found {category_count} categories")
+            
+            print("\nTesting MindMapNode model...")
+            node_count = MindMapNode.query.count()
+            print(f"  Found {node_count} mindmap nodes")
+            
+            print("\nTesting Thought model...")
+            thought_count = Thought.query.count()
+            print(f"  Found {thought_count} thoughts")
+            
+            if user_count == 0:
+                print("\nWARNING: No users found in the database. You might need to create an admin user.")
+            
+            return True
+        except Exception as e:
+            print(f"Error testing models: {e}")
+            return False
+
+def print_database_stats():
+    """Print database statistics."""
+    with app.app_context():
+        try:
+            stats = []
+            stats.append(("Users", User.query.count()))
+            stats.append(("Categories", Category.query.count()))
+            stats.append(("Mindmap Nodes", MindMapNode.query.count()))
+            stats.append(("Thoughts", Thought.query.count()))
+            
+            print("\nDatabase Statistics:")
+            print("-" * 40)
+            for name, count in stats:
+                print(f"{name:<20} : {count}")
+            print("-" * 40)
+            
+            return True
+        except Exception as e:
+            print(f"Error generating database statistics: {e}")
+            return False
+
+def run_all_tests():
+    """Run all database tests."""
+    success = True
+    
+    print("=" * 60)
+    print("STARTING DATABASE TESTS")
+    print("=" * 60)
+    
+    # Test database connection
+    print("\n1. Testing database connection...")
+    if not test_database_connection():
+        success = False
+    
+    # Test models
+    print("\n2. Testing database models...")
+    if not test_models():
+        success = False
+    
+    # Print statistics
+    print("\n3. Database statistics:")
+    if not print_database_stats():
+        success = False
+    
+    print("\n" + "=" * 60)
+    if success:
+        print("All database tests completed successfully!")
+    else:
+        print("Some database tests failed. Check the output above for details.")
+    print("=" * 60)
+    
+    return success
+
+if __name__ == "__main__":
+    run_all_tests() 

utils/download_resources.py

@@ -0,0 +1,225 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Dieses Skript lädt externe Ressourcen wie Font Awesome, Tailwind CSS und Alpine.js herunter
+und installiert sie lokal, um die Abhängigkeit von externen CDNs zu vermeiden und
+die Content Security Policy zu erfüllen.
+"""
+
+import os
+import sys
+import requests
+import zipfile
+import io
+import shutil
+import subprocess
+from pathlib import Path
+
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+
+# URLs für die Ressourcen
+RESOURCES = {
+    'alpine.js': 'https://cdn.jsdelivr.net/npm/alpinejs@3.12.3/dist/cdn.min.js',
+    'font_awesome': 'https://use.fontawesome.com/releases/v6.4.0/fontawesome-free-6.4.0-web.zip',
+    'inter_font_300': 'https://fonts.gstatic.com/s/inter/v18/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7.woff2',
+    'inter_font_400': 'https://fonts.gstatic.com/s/inter/v18/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2ZL7SUc.woff2',
+    'inter_font_500': 'https://fonts.gstatic.com/s/inter/v18/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1pL7SUc.woff2',
+    'inter_font_600': 'https://fonts.gstatic.com/s/inter/v18/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa2pL7SUc.woff2',
+    'inter_font_700': 'https://fonts.gstatic.com/s/inter/v18/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa25L7SUc.woff2',
+    'jetbrains_font_400': 'https://fonts.gstatic.com/s/jetbrainsmono/v20/tDbv2o-flEEny0FZhsfKu5WU4zr3E_BX0PnT8RD8yKwBNntkaToggR7BYRbKPxDcwg.woff2',
+    'jetbrains_font_500': 'https://fonts.gstatic.com/s/jetbrainsmono/v20/tDbv2o-flEEny0FZhsfKu5WU4zr3E_BX0PnT8RD8yKwBNntkaToggR7BYRbKPx3cwhsk.woff2',
+    'jetbrains_font_700': 'https://fonts.gstatic.com/s/jetbrainsmono/v20/tDbv2o-flEEny0FZhsfKu5WU4zr3E_BX0PnT8RD8yKwBNntkaToggR7BYRbKPxTcwhsk.woff2',
+}
+
+# Zielverzeichnisse
+DIRECTORIES = {
+    'js': os.path.join(BASE_DIR, 'static', 'js'),
+    'css': os.path.join(BASE_DIR, 'static', 'css'),
+    'fonts': os.path.join(BASE_DIR, 'static', 'fonts'),
+    'webfonts': os.path.join(BASE_DIR, 'static', 'webfonts'),
+}
+
+def download_file(url, filepath):
+    """Lädt eine Datei von einer URL herunter und speichert sie lokal."""
+    response = requests.get(url, stream=True)
+    if response.status_code == 200:
+        with open(filepath, 'wb') as f:
+            for chunk in response.iter_content(chunk_size=8192):
+                f.write(chunk)
+        print(f"✅ Heruntergeladen: {os.path.basename(filepath)}")
+        return True
+    else:
+        print(f"❌ Fehler beim Herunterladen von {url}: {response.status_code}")
+        return False
+
+def extract_zip(zip_data, extract_to):
+    """Extrahiert eine ZIP-Datei in das angegebene Verzeichnis."""
+    with zipfile.ZipFile(io.BytesIO(zip_data)) as zip_ref:
+        zip_ref.extractall(extract_to)
+
+def setup_directories():
+    """Erstellt die benötigten Verzeichnisse, falls sie nicht existieren."""
+    for directory in DIRECTORIES.values():
+        os.makedirs(directory, exist_ok=True)
+        print(f"📁 Verzeichnis erstellt/überprüft: {directory}")
+
+def download_alpine():
+    """Lädt Alpine.js herunter."""
+    url = RESOURCES['alpine.js']
+    filepath = os.path.join(DIRECTORIES['js'], 'alpine.min.js')
+    download_file(url, filepath)
+
+def download_font_awesome():
+    """Lädt Font Awesome herunter und extrahiert die Dateien."""
+    url = RESOURCES['font_awesome']
+    response = requests.get(url)
+    if response.status_code == 200:
+        # Temporäres Verzeichnis für die Extraktion
+        temp_dir = os.path.join(BASE_DIR, 'temp_fontawesome')
+        os.makedirs(temp_dir, exist_ok=True)
+        
+        # ZIP-Datei extrahieren
+        extract_zip(response.content, temp_dir)
+        
+        # CSS-Datei kopieren
+        fa_dir = os.path.join(temp_dir, 'fontawesome-free-6.4.0-web')
+        css_source = os.path.join(fa_dir, 'css', 'all.min.css')
+        css_dest = os.path.join(DIRECTORIES['css'], 'all.min.css')
+        shutil.copyfile(css_source, css_dest)
+        print(f"✅ Font Awesome CSS kopiert nach {css_dest}")
+        
+        # Webfonts-Verzeichnis kopieren
+        webfonts_source = os.path.join(fa_dir, 'webfonts')
+        shutil.rmtree(DIRECTORIES['webfonts'], ignore_errors=True)
+        shutil.copytree(webfonts_source, DIRECTORIES['webfonts'])
+        print(f"✅ Font Awesome Webfonts kopiert nach {DIRECTORIES['webfonts']}")
+        
+        # Temporäres Verzeichnis löschen
+        shutil.rmtree(temp_dir)
+        
+        return True
+    else:
+        print(f"❌ Fehler beim Herunterladen von Font Awesome: {response.status_code}")
+        return False
+
+def download_google_fonts():
+    """Lädt die Google Fonts (Inter und JetBrains Mono) herunter."""
+    font_files = {
+        'inter-light.woff2': RESOURCES['inter_font_300'],
+        'inter-regular.woff2': RESOURCES['inter_font_400'],
+        'inter-medium.woff2': RESOURCES['inter_font_500'],
+        'inter-semibold.woff2': RESOURCES['inter_font_600'],
+        'inter-bold.woff2': RESOURCES['inter_font_700'],
+        'jetbrainsmono-regular.woff2': RESOURCES['jetbrains_font_400'],
+        'jetbrainsmono-medium.woff2': RESOURCES['jetbrains_font_500'],
+        'jetbrainsmono-bold.woff2': RESOURCES['jetbrains_font_700'],
+    }
+    
+    for filename, url in font_files.items():
+        filepath = os.path.join(DIRECTORIES['fonts'], filename)
+        download_file(url, filepath)
+
+def setup_tailwind():
+    """Richtet Tailwind CSS ein."""
+    # Tailwind-Konfiguration erstellen, falls sie nicht existiert
+    tailwind_config = os.path.join(BASE_DIR, 'tailwind.config.js')
+    if not os.path.exists(tailwind_config):
+        with open(tailwind_config, 'w') as f:
+            f.write("""/** @type {import('tailwindcss').Config} */
+module.exports = {
+  darkMode: 'class',
+  content: [
+    "./templates/**/*.html",
+    "./static/**/*.js",
+  ],
+  theme: {
+    extend: {
+      fontFamily: {
+        sans: ['Inter', 'ui-sans-serif', 'system-ui', '-apple-system', 'sans-serif'],
+        mono: ['JetBrains Mono', 'ui-monospace', 'monospace']
+      },
+      colors: {
+        primary: {
+          50: '#f5f3ff',
+          100: '#ede9fe',
+          200: '#ddd6fe',
+          300: '#c4b5fd',
+          400: '#a78bfa',
+          500: '#8b5cf6',
+          600: '#7c3aed',
+          700: '#6d28d9',
+          800: '#5b21b6',
+          900: '#4c1d95'
+        },
+        secondary: {
+          50: '#ecfdf5',
+          100: '#d1fae5',
+          200: '#a7f3d0',
+          300: '#6ee7b7',
+          400: '#34d399',
+          500: '#10b981',
+          600: '#059669',
+          700: '#047857',
+          800: '#065f46',
+          900: '#064e3b'
+        },
+        dark: {
+          500: '#374151',
+          600: '#1f2937',
+          700: '#111827',
+          800: '#0e1220',
+          900: '#0a0e19'
+        }
+      }
+    }
+  },
+  plugins: [],
+}
+""")
+        print(f"✅ Tailwind-Konfiguration erstellt: {tailwind_config}")
+    
+    # Input-CSS-Datei erstellen
+    input_css_dir = os.path.join(DIRECTORIES['css'], 'src')
+    os.makedirs(input_css_dir, exist_ok=True)
+    
+    input_css = os.path.join(input_css_dir, 'input.css')
+    if not os.path.exists(input_css):
+        with open(input_css, 'w') as f:
+            f.write("""@tailwind base;
+@tailwind components;
+@tailwind utilities;
+""")
+        print(f"✅ Tailwind Input-CSS erstellt: {input_css}")
+    
+    # Hinweis zur Kompilierung anzeigen
+    print("\n📋 Um Tailwind CSS zu kompilieren, führe folgenden Befehl aus:")
+    print("npm install -D tailwindcss")
+    print(f"npx tailwindcss -i {input_css} -o {os.path.join(DIRECTORIES['css'], 'tailwind.min.css')} --minify")
+
+def main():
+    """Hauptfunktion: Lädt alle benötigten Ressourcen herunter."""
+    print("🚀 Starte den Download externer Ressourcen...")
+    setup_directories()
+    
+    # Alpine.js herunterladen
+    print("\n📦 Lade Alpine.js herunter...")
+    download_alpine()
+    
+    # Font Awesome herunterladen
+    print("\n📦 Lade Font Awesome herunter...")
+    download_font_awesome()
+    
+    # Google Fonts herunterladen
+    print("\n📦 Lade Google Fonts herunter...")
+    download_google_fonts()
+    
+    # Tailwind CSS einrichten
+    print("\n📦 Richte Tailwind CSS ein...")
+    setup_tailwind()
+    
+    print("\n✅ Alle Ressourcen wurden erfolgreich heruntergeladen und eingerichtet!")
+    print("🔒 Die Webseite sollte nun ohne externe CDNs funktionieren und die Content Security Policy erfüllen.")
+
+if __name__ == "__main__":
+    main() 

utils/server.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import os
+import sys
+
+# Add the parent directory to path so we can import the app
+parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, parent_dir)
+
+from app import app
+
+def run_development_server(host='127.0.0.1', port=5000, debug=True):
+    """Run the Flask development server."""
+    try:
+        print(f"Starting development server on http://{host}:{port}")
+        print("Press CTRL+C to stop the server")
+        app.run(host=host, port=port, debug=debug)
+        return True
+    except Exception as e:
+        print(f"Error starting development server: {e}")
+        return False
+
+if __name__ == "__main__":
+    import argparse
+    
+    parser = argparse.ArgumentParser(description='Run the development server')
+    parser.add_argument('--host', default='127.0.0.1', help='Host to bind to')
+    parser.add_argument('--port', type=int, default=5000, help='Port to bind to')
+    parser.add_argument('--debug', action='store_true', default=True, help='Enable debug mode')
+    
+    args = parser.parse_args()
+    
+    run_development_server(host=args.host, port=args.port, debug=args.debug) 

utils/user_manager.py

@@ -0,0 +1,159 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import os
+import sys
+from datetime import datetime
+
+# Add the parent directory to path so we can import the app
+parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+sys.path.insert(0, parent_dir)
+
+from app import app
+from models import db, User
+
+def list_users():
+    """List all users in the database."""
+    with app.app_context():
+        try:
+            users = User.query.all()
+            if not users:
+                print("No users found in the database.")
+                return []
+            
+            print("Found {} users:".format(len(users)))
+            print("-" * 60)
+            print("{:<5} {:<20} {:<30} {:<10}".format("ID", "Username", "Email", "Admin"))
+            print("-" * 60)
+            
+            for user in users:
+                print("{:<5} {:<20} {:<30} {:<10}".format(
+                    user.id, user.username, user.email, "Yes" if user.is_admin else "No"
+                ))
+            return users
+        except Exception as e:
+            print(f"Error listing users: {e}")
+            return []
+
+def create_user(username, email, password, is_admin=False):
+    """Create a new user in the database."""
+    with app.app_context():
+        try:
+            # Check if user already exists
+            existing_user = User.query.filter_by(username=username).first()
+            if existing_user:
+                print(f"User with username '{username}' already exists.")
+                return False
+            
+            # Check if email already exists
+            existing_email = User.query.filter_by(email=email).first()
+            if existing_email:
+                print(f"User with email '{email}' already exists.")
+                return False
+            
+            # Create new user
+            user = User(
+                username=username,
+                email=email,
+                is_admin=is_admin,
+                created_at=datetime.utcnow()
+            )
+            user.set_password(password)
+            
+            db.session.add(user)
+            db.session.commit()
+            
+            print(f"User '{username}' created successfully!")
+            return True
+            
+        except Exception as e:
+            db.session.rollback()
+            print(f"Error creating user: {e}")
+            return False
+
+def reset_password(username, new_password):
+    """Reset password for a user."""
+    with app.app_context():
+        try:
+            user = User.query.filter_by(username=username).first()
+            if not user:
+                print(f"User '{username}' not found.")
+                return False
+            
+            user.set_password(new_password)
+            db.session.commit()
+            
+            print(f"Password for user '{username}' reset successfully!")
+            return True
+            
+        except Exception as e:
+            db.session.rollback()
+            print(f"Error resetting password: {e}")
+            return False
+
+def delete_user(username):
+    """Delete a user from the database."""
+    with app.app_context():
+        try:
+            user = User.query.filter_by(username=username).first()
+            if not user:
+                print(f"User '{username}' not found.")
+                return False
+            
+            db.session.delete(user)
+            db.session.commit()
+            
+            print(f"User '{username}' deleted successfully!")
+            return True
+            
+        except Exception as e:
+            db.session.rollback()
+            print(f"Error deleting user: {e}")
+            return False
+
+def create_admin_user():
+    """Create an admin user in the database."""
+    return create_user('admin', 'admin@example.com', 'admin', is_admin=True)
+
+if __name__ == "__main__":
+    import argparse
+    
+    parser = argparse.ArgumentParser(description='User management utility')
+    subparsers = parser.add_subparsers(dest='command', help='Command to execute')
+    
+    # List users command
+    list_parser = subparsers.add_parser('list', help='List all users')
+    
+    # Create user command
+    create_parser = subparsers.add_parser('create', help='Create a new user')
+    create_parser.add_argument('--username', '-u', required=True, help='Username')
+    create_parser.add_argument('--email', '-e', required=True, help='Email address')
+    create_parser.add_argument('--password', '-p', required=True, help='Password')
+    create_parser.add_argument('--admin', '-a', action='store_true', help='Make user an admin')
+    
+    # Reset password command
+    reset_parser = subparsers.add_parser('reset-password', help='Reset a user password')
+    reset_parser.add_argument('--username', '-u', required=True, help='Username')
+    reset_parser.add_argument('--password', '-p', required=True, help='New password')
+    
+    # Delete user command
+    delete_parser = subparsers.add_parser('delete', help='Delete a user')
+    delete_parser.add_argument('--username', '-u', required=True, help='Username to delete')
+    
+    # Create admin command (shortcut)
+    admin_parser = subparsers.add_parser('create-admin', help='Create the default admin user')
+    
+    args = parser.parse_args()
+    
+    if args.command == 'list':
+        list_users()
+    elif args.command == 'create':
+        create_user(args.username, args.email, args.password, args.admin)
+    elif args.command == 'reset-password':
+        reset_password(args.username, args.password)
+    elif args.command == 'delete':
+        delete_user(args.username)
+    elif args.command == 'create-admin':
+        create_admin_user()
+    else:
+        parser.print_help()