initial

backend/app.py

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+import os
+from flask import Flask, send_from_directory
+from flask_cors import CORS
+from flask_migrate import Migrate
+from flask_socketio import SocketIO
+
+from backend.models import db
+from backend.config import config
+
+# Initialize extensions
+migrate = Migrate()
+socketio = SocketIO(cors_allowed_origins="*", async_mode='eventlet')
+
+
+def create_app(config_name=None):
+    """Flask application factory"""
+    if config_name is None:
+        config_name = os.environ.get('FLASK_ENV', 'development')
+
+    app = Flask(__name__,
+                static_folder='static',
+                static_url_path='/static')
+
+    # Load configuration
+    app.config.from_object(config[config_name])
+
+    # Configure session for OAuth state management
+    app.config['SESSION_COOKIE_SAMESITE'] = 'Lax'  # Allow cross-site on redirects
+    app.config['SESSION_COOKIE_HTTPONLY'] = True
+
+    # Ensure required directories exist
+    os.makedirs(app.config['UPLOAD_FOLDER'], exist_ok=True)
+    os.makedirs(app.config['AUDIO_FOLDER'], exist_ok=True)
+
+    # Ensure database instance directory exists
+    db_path = app.config['SQLALCHEMY_DATABASE_URI'].replace('sqlite:///', '')
+    if db_path and db_path != ':memory:':
+        os.makedirs(os.path.dirname(db_path), exist_ok=True)
+
+    # Initialize extensions
+    db.init_app(app)
+    migrate.init_app(app, db)
+    socketio.init_app(app)
+    CORS(app,
+         resources={r"/api/*": {"origins": app.config['CORS_ORIGINS']}},
+         supports_credentials=True)
+
+    # Initialize OAuth/OIDC
+    from backend.auth import init_oauth
+    init_oauth(app)
+
+    # Register blueprints
+    from backend.routes import questions, games, teams, admin, categories, download_jobs, auth
+    app.register_blueprint(auth.bp)
+    app.register_blueprint(questions.bp)
+    app.register_blueprint(games.bp)
+    app.register_blueprint(teams.bp)
+    app.register_blueprint(admin.bp)
+    app.register_blueprint(categories.bp)
+    app.register_blueprint(download_jobs.bp)
+
+    # Register socket events
+    from backend.sockets import events
+
+    # Serve React frontend in production
+    @app.route('/', defaults={'path': ''})
+    @app.route('/<path:path>')
+    def serve_frontend(path):
+        """Serve React frontend"""
+        if path and os.path.exists(os.path.join(app.static_folder, path)):
+            return send_from_directory(app.static_folder, path)
+        elif path.startswith('api/'):
+            # API routes should 404 if not found
+            return {'error': 'Not found'}, 404
+        else:
+            # Serve index.html for all other routes (React Router)
+            index_path = os.path.join(app.static_folder, 'index.html')
+            if os.path.exists(index_path):
+                return send_from_directory(app.static_folder, 'index.html')
+            else:
+                return {'message': 'Trivia Game API', 'status': 'running'}, 200
+
+    # Health check endpoint
+    @app.route('/api/health')
+    def health_check():
+        """Health check endpoint"""
+        return {'status': 'ok', 'message': 'Trivia Game API is running'}, 200
+
+    return app