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 routes.dns import dns_bp
from ktvmanager.lib.database import initialize_db_pool
from ktvmanager.account_checker import send_expiry_notifications
from apscheduler.schedulers.background import BackgroundScheduler

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()

    # Schedule the daily account check
    scheduler = BackgroundScheduler()
    # Pass the app instance to the job
    scheduler.add_job(func=lambda: send_expiry_notifications(app), trigger="cron", hour=10, minute=0)
    scheduler.start()

    # Register blueprints
    app.register_blueprint(api_blueprint)
    app.register_blueprint(dns_bp)

    @app.route('/check-expiry', methods=['POST'])
    def check_expiry():
        """Manually triggers the expiry notification check."""
        send_expiry_notifications(app)
        return jsonify({"message": "Expiry notification check triggered."})

    # 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"])