PIbd-23_Firsov_KA_SUBD/Hotel/HotelView/FormHotel.cs

using HotelAbstractions.Logic;
using HotelAbstractions.Models;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace HotelView
{
    public partial class FormHotel : Form
    {
        private readonly IHotelLogic _guestLogic;
        public FormHotel(IHotelLogic guestLogic)
        {
            InitializeComponent();
            _guestLogic = guestLogic;
        }

        private void FormHotel_Load(object sender, EventArgs e)
        {
            LoadData();
        }

        private void ButtonCreate_Click(object sender, EventArgs e)
        {
            Hotel newHotel = new()
            {
                HotelName = textBoxName.Text,
                Address = textBoxAddress.Text,
                CountStar = (int)numericUpDownCountStar.Value,
                CountRoom = (int)numericUpDownCountRoom.Value,
            };

            _guestLogic.Create(newHotel);

            LoadData();
        }

        private void LoadData()
        {
            var guests = _guestLogic.GetAll();

            dataGridView.Rows.Clear();

            if (dataGridView.ColumnCount == 0)
            {
                dataGridView.Columns.Add("Id", "ID");
                dataGridView.Columns.Add("HotelName", "Название");
                dataGridView.Columns.Add("Address", "Адрес");
                dataGridView.Columns.Add("CountStar", "Количество звезд");
                dataGridView.Columns.Add("CountRoom", "Количество комнат");
            }

            dataGridView.Columns["Id"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
            dataGridView.Columns["HotelName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
            dataGridView.Columns["Address"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
            dataGridView.Columns["CountStar"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
            dataGridView.Columns["CountRoom"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;

            foreach (var guest in guests)
            {
                dataGridView.Rows.Add(guest.Id, guest.HotelName, guest.Address, guest.CountStar, guest.CountRoom);
            }
        }

        private void ButtonUpdate_Click(object sender, EventArgs e)
        {
            if (dataGridView.SelectedRows.Count > 0)
            {
                DataGridViewRow selectedRow = dataGridView.SelectedRows[0];
                int guestId = Convert.ToInt32(selectedRow.Cells["Id"].Value);

                Hotel updatedHotel = new()
                {
                    Id = guestId,
                    HotelName = textBoxName.Text,
                    Address = textBoxAddress.Text,
                    CountStar = (int)numericUpDownCountStar.Value,
                    CountRoom = (int)numericUpDownCountRoom.Value,
                };

                _guestLogic.Update(updatedHotel);

                LoadData();
            }
            else
            {
                MessageBox.Show("Пожалуйста, выберите гостинницу, информацию о которой необходимо обновить");
            }
        }

        private void ButtonDelete_Click(object sender, EventArgs e)
        {
            if (dataGridView.SelectedRows.Count > 0)
            {
                DataGridViewRow selectedRow = dataGridView.SelectedRows[0];
                int guestId = Convert.ToInt32(selectedRow.Cells["Id"].Value);

                _guestLogic.Delete(guestId);

                LoadData();
            }
            else
            {
                MessageBox.Show("Пожалуйста, выберите гостинницу, информацию о которой необходимо удалить");
            }
        }

        private void DataGridView_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            if (e.RowIndex >= 0)
            {
                DataGridViewRow row = dataGridView.Rows[e.RowIndex];
                textBoxName.Text = row.Cells["HotelName"].Value.ToString();
                textBoxAddress.Text = row.Cells["Address"].Value.ToString();
                numericUpDownCountStar.Text = row.Cells["CountStar"].Value.ToString();
                numericUpDownCountRoom.Text = row.Cells["CountRoom"].Value.ToString();
            }
        }
    }
}