import os
from flask import Flask, jsonify
from dotenv import load_dotenv
from ktvmanager.config import DevelopmentConfig, ProductionConfig
from routes.api import api_blueprint
from ktvmanager.lib.database import initialize_db_pool

def create_app():
    app = Flask(__name__)
    load_dotenv()

    if os.environ.get("FLASK_ENV") == "production":
        app.config.from_object(ProductionConfig)
    else:
        app.config.from_object(DevelopmentConfig)

    with app.app_context():
        initialize_db_pool()

    # Register blueprints
    app.register_blueprint(api_blueprint)

    # Error handlers
    @app.errorhandler(404)
    def not_found(error):
        return jsonify({"error": "Not found"}), 404

    @app.errorhandler(500)
    def server_error(error):
        return jsonify({"error": "Server error"}), 500

    return app

if __name__ == "__main__":
    app = create_app()
    app.run(debug=app.config["DEBUG"], host=app.config["HOST"], port=app.config["PORT"])