app_old.py

from flask import Flask, jsonify
from flask_cors import CORS
from flask_jwt_extended import JWTManager
from config import Config
import os

def create_app(config_class=Config):
    """Application factory pattern"""
    app = Flask(__name__)
    app.config.from_object(config_class)
    
    # Initialize extensions
    # Configure CORS with explicit settings
    CORS(app, 
         resources={r"/api/*": {"origins": "*"}},
         supports_credentials=True,
         allow_headers=["Content-Type", "Authorization"],
         methods=["GET", "POST", "PUT", "DELETE", "OPTIONS"])
    
    jwt = JWTManager(app)
    
    # Ensure upload folder exists
    os.makedirs(app.config['UPLOAD_FOLDER'], exist_ok=True)
    
    # Register blueprints
    from routes.auth import auth_bp
    from routes.provider import provider_bp
    from routes.admin import admin_bp
    from routes.customer import customer_bp
    
    app.register_blueprint(auth_bp, url_prefix='/api/auth')
    app.register_blueprint(provider_bp, url_prefix='/api/provider')
    app.register_blueprint(admin_bp, url_prefix='/api/admin')
    app.register_blueprint(customer_bp, url_prefix='/api/customer')
    
    # Health check endpoint
    @app.route('/api/health', methods=['GET'])
    def health_check():
        return jsonify({
            'status': 'healthy',
            'message': 'Solar Lighting Platform API is running',
            'version': '1.0.0'
        }), 200
    
    # Error handlers
    @app.errorhandler(404)
    def not_found(error):
        return jsonify({'error': 'Resource not found'}), 404
    
    @app.errorhandler(500)
    def internal_error(error):
        return jsonify({'error': 'Internal server error'}), 500
    
    @jwt.expired_token_loader
    def expired_token_callback(jwt_header, jwt_payload):
        return jsonify({
            'error': 'Token has expired',
            'message': 'Please log in again'
        }), 401
    
    @jwt.invalid_token_loader
    def invalid_token_callback(error):
        return jsonify({
            'error': 'Invalid token',
            'message': 'Please provide a valid authentication token'
        }), 401
    
    @jwt.unauthorized_loader
    def missing_token_callback(error):
        return jsonify({
            'error': 'Authorization required',
            'message': 'Please log in to access this resource'
        }), 401
    
    return app

if __name__ == '__main__':
    app = create_app()
    app.run(debug=True, host='0.0.0.0', port=5000)