Zimogorov_Arseniy_OrdersManager/ClientEditForm.cs

using System;
using System.Text.RegularExpressions;
using System.Windows.Forms;


namespace WindowsFormsApp4
{
    public partial class ClientEditForm : Form
    {
        private int? clientId;
        private bool isEditMode;

        public ClientEditForm()
        {
            InitializeComponent();
            isEditMode = false;
            lblTitle.Text = "Добавление клиента";
            AttachEventHandlers();
        }

        public ClientEditForm(int id, string lastName, string firstName, string middleName, string phone)
        {
            InitializeComponent();
            isEditMode = true;
            clientId = id;
            lblTitle.Text = "Редактирование клиента";
            txtLastName.Text = lastName;
            txtFirstName.Text = firstName;
            txtMiddleName.Text = middleName;
            txtPhone.Text = phone;
            AttachEventHandlers();
        }

        private void AttachEventHandlers()
        {
            btnSave.Click += BtnSave_Click;
            btnCancel.Click += BtnCancel_Click;
        }

        private bool ValidateFields()
        {
            if (string.IsNullOrWhiteSpace(txtLastName.Text))
            {
                MessageBox.Show("Введите фамилию", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                txtLastName.Focus();
                return false;
            }

            if (string.IsNullOrWhiteSpace(txtFirstName.Text))
            {
                MessageBox.Show("Введите имя", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                txtFirstName.Focus();
                return false;
            }

            string phone = txtPhone.Text.Trim();
            if (string.IsNullOrWhiteSpace(phone))
            {
                MessageBox.Show("Введите номер телефона", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                txtPhone.Focus();
                return false;
            }

            Regex phoneRegex = new Regex(@"^(\+7|8)[0-9]{10}$");
            if (!phoneRegex.IsMatch(phone))
            {
                MessageBox.Show("Некорректный номер телефона. Формат: +7XXXXXXXXXX или 8XXXXXXXXXX",
                    "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                txtPhone.Focus();
                return false;
            }

            return true;
        }

        private void BtnSave_Click(object sender, EventArgs e)
        {
            if (!ValidateFields())
                return;

            bool result;
            if (isEditMode && clientId.HasValue)
            {
                result = DatabaseHelper.UpdateClient(
                    clientId.Value,
                    txtLastName.Text.Trim(),
                    txtFirstName.Text.Trim(),
                    txtMiddleName.Text.Trim(),
                    txtPhone.Text.Trim()
                );
            }
            else
            {
                int newId = DatabaseHelper.AddClient(
                    txtLastName.Text.Trim(),
                    txtFirstName.Text.Trim(),
                    txtMiddleName.Text.Trim(),
                    txtPhone.Text.Trim()
                );
                result = newId > 0;
            }

            if (result)
            {
                this.DialogResult = DialogResult.OK;
                this.Close();
            }
            else
            {
                MessageBox.Show("Ошибка при сохранении", "Ошибка",
                    MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void BtnCancel_Click(object sender, EventArgs e)
        {
            this.DialogResult = DialogResult.Cancel;
            this.Close();
        }
    }
}