Initial commit

C#/WebApplication/Repositorys/CustomerRepository.cs

@@ -0,0 +1,78 @@
+using System;
+using System.Collections.Generic;
+using MySqlConnector;
+using WebApplication.Modules;
+using WebApplication.Repositorys.Interfaces;
+
+namespace WebApplication.Repositorys {
+    public class CustomerRepository : ICustomerRepository {
+        private string GetFreeId() {
+            string guid = Guid.NewGuid().ToString();
+            while (true) {
+                if (GetCustomer(guid) is not null) guid = Guid.NewGuid().ToString();
+                else break;
+            }
+
+            return guid;
+        }
+
+        public Customer AddCustomer(CustomerEditor editor) {
+            Customer customer = new Customer {Guid = GetFreeId(), CreationDate = DateTime.Now};
+            editor.EditCustomer(customer);
+            SaveCustomer(customer);
+            return customer;
+        }
+
+        public void RemoveCustomer(string id) {
+            MySQL.Insert($"DELETE FROM Customers WHERE Guid = \"{id}\"");
+        }
+
+        public void EditCustomer(string id, CustomerEditor editor) {
+            RemoveCustomer(id);
+            Customer customer = GetCustomer(id);
+            editor.EditCustomer(customer);
+            SaveCustomer(customer);
+        }
+
+        public Customer GetCustomer(string id) {
+            MySqlDataReader reader = MySQL.GetData($"SELECT * FROM Customers WHERE Guid = \"{id}\"");
+            if (reader.Read()) {
+                Customer customer = new Customer();
+                customer.Guid = reader.GetString("Guid");
+                customer.CreationDate = DateTime.Parse(reader.GetString("CreationDate"));
+                customer.FirstName = reader.GetString("FirstName");
+                customer.LastName = reader.GetString("LastName");
+                customer.Email = reader.GetString("Email");
+                customer.Username = reader.GetString("Username");
+                customer.Password = reader.GetString("Password");
+                customer.Balance = float.Parse(reader.GetString("Balance"));
+                reader.Close();
+                return customer;
+            }
+            reader.Close();
+            return null;
+        }
+
+        public IEnumerable<Customer> GetCustomers() {
+            List<Customer> customers = new List<Customer>();
+            MySqlDataReader reader = MySQL.GetData("SELECT * FROM Customers");
+            while (reader.Read()) {
+                Customer customer = new Customer();
+                customer.Guid = reader.GetString("Guid");
+                customer.CreationDate = DateTime.Parse(reader.GetString("CreationDate"));
+                customer.FirstName = reader.GetString("FirstName");
+                customer.LastName = reader.GetString("LastName");
+                customer.Email = reader.GetString("Email");
+                customer.Username = reader.GetString("Username");
+                customer.Balance = float.Parse(reader.GetString("Balance"));
+                customers.Add(customer);
+            }
+            reader.Close();
+            return customers;
+        }
+
+        private void SaveCustomer(Customer customer) {
+            MySQL.Insert($"INSERT INTO Customers VALUES (\"{customer.Guid}\", \"{customer.CreationDate}\", \"{customer.FirstName}\", \"{customer.LastName}\", \"{customer.Email}\", \"{customer.Username}\", \"{customer.Password}\", \"{customer.Balance}\")");
+        }
+    }
+}