BathhouseManagment/Database/ClientRepository.cs

using System;
using System.Collections.Generic;
using BathHouseManagmet.Models;
using Microsoft.Extensions.Options;
using MySqlConnector;

namespace BathHouseManagmet.Database;

public class ClientRepository
{
    MySqlConnection connection;

    public ClientRepository(IOptions<DatabaseConnection> connect)
    {
        connection = new MySqlConnection(connect.Value.ConnectionString);
    }

    public List<Client> GetClients()
    {
        List<Client> result = new();
        string sql = "select * from `client`";
        try
        {
            connection.Open();
            using(var command = new MySqlCommand(sql, connection))
            using (var reader = command.ExecuteReader())
            {
                while (reader.Read())
                {
                    result.Add(new Client
                    {
                        Id = reader.GetInt32("id"),
                        Name = reader.GetString("name"),
                        Surname = reader.GetString("surname"),
                    });
                }
            }
            connection.Close();
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
        }
        return result;
    }

    public bool InsertClient(Client client)
    {
        string sql = "insert into `client` (`id`, `name`, `surname`) values (0, @name, @surname)";
        try
        {
            connection.Open();
            using (var command = new MySqlCommand(sql, connection))
            {
                command.Parameters.AddWithValue("@name", client.Name);
                command.Parameters.AddWithValue("@surname", client.Surname);
                command.ExecuteNonQuery();
            }
        }
        catch (Exception e)
        {
            connection.Close();
            return false;
        }
        connection.Close();
        return true;
    }

    public bool UpdateClient(Client client)
    {
        string sql = "update `client` set name = @name, surname = @surname";
        try
        {
            connection.Open();
            using (var command = new MySqlCommand(sql, connection))
            {
                command.Parameters.AddWithValue("@name", client.Name);
                command.Parameters.AddWithValue("@surname", client.Surname);
                command.ExecuteNonQuery();
            }
            connection.Close();
        }
        catch (Exception e)
        {
            connection.Close();
            return false;
        }
        connection.Close();
        return true;
    }

    public bool DeleteClient(Client client)
    {
        string sql = "delete from `client` where `id` = " + client.Id;
        try
        {
            connection.Open();
            using (var command = new MySqlCommand(sql, connection))
            {
                command.ExecuteNonQuery();
            }
        }
        catch (Exception e)
        {
            connection.Close();
            return false;
        }
        connection.Close();
        return true;
    }
}