events

// event triggers when order sent
event OrderSent(address customer, string burgerMenu, uint quantity, uint orderNo);

// event triggers when price sent
event PriceSent(address customer, uint orderNo, uint price);

// event triggers when safe payment sent
event SafePaymentSent(address customer, uint orderNo, uint value, uint now);

// event triggers when invoice sent
event InvoiceSent(address customer, uint invoiceID, uint orderNo, uint delivery_date);

// event triggers when order delivered
event OrderDelivered(address customer, uint invoiceID, uint orderNo, uint real_delivey_date);