Add 500 error simulation middleware and HTMX integration

app/__init__.py

@@ -11,10 +11,33 @@ login_manager.login_view = 'auth.login'
 login_manager.login_message = 'Please log in to access this page.'
 login_manager.login_message_category = 'warning'
 
+from flask import Flask, request, make_response
+from flask_sqlalchemy import SQLAlchemy
+from flask_login import LoginManager
+from config import config
+from app.models import db, Base, User
+from flask_migrate import Migrate
+
+# Initialize Flask-Login
+login_manager = LoginManager()
+login_manager.login_view = 'auth.login'
+login_manager.login_message = 'Please log in to access this page.'
+login_manager.login_message_category = 'warning'
+
+
 def create_app(config_name='default'):
     app = Flask(__name__, static_folder='static', static_url_path='/static')
     app.config.from_object(config[config_name])
     
+    # Add middleware to simulate 500 errors
+    @app.before_request
+    def check_for_simulate_500():
+        # Check if the X-Simulate-500 header is present
+        if request.headers.get('X-Simulate-500'):
+            response = make_response({'error': 'Simulated server error'}, 500)
+            response.headers['Content-Type'] = 'application/json'
+            return response
+    
     # Initialize extensions
     db.init_app(app)
     migrate = Migrate(app, db)