SUBD_Aleikin/Restaurant/RestaurantView/FormComponent.cs

using RestaurantBusinessLogic.BusinessLogics;
using RestaurantContracts.BindingModels;
using RestaurantContracts.BusinessLogicsContracts;
using RestaurantContracts.SearchModels;
using RestaurantDataModels.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 RestaurantView
{
    public partial class FormComponent : Form
    {
        private readonly IComponentLogic _componentLogic;
        private List<(IProviderModel, int, DateTime)> _componentProviders;
        private int? _id;
        public int Id { set { _id = value; } }
        public FormComponent(IComponentLogic componentLogic)
        {
            InitializeComponent();
            _componentLogic = componentLogic;
            _componentProviders = new List<(IProviderModel, int, DateTime)>();
        }

        private void FormComponent_Load(object sender, EventArgs e)
        {
            if (_id.HasValue)
            {
                try
                {
                    var view = _componentLogic.ReadElement(new ComponentSearchModel
                    {
                        Id = _id.Value
                    });
                    if (view != null)
                    {
                        textBoxName.Text = view.Name;
                        textBoxPrice.Text = view.Price.ToString();
                        textBoxCount.Text = view.Count.ToString();
                        _componentProviders = view.ComponentProviders ?? new List<(IProviderModel, int, DateTime)>();
                        LoadData();
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
                    MessageBoxIcon.Error);
                }
            }
        }

        private void buttonSave_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(textBoxName.Text) && string.IsNullOrEmpty(textBoxPrice.Text) && string.IsNullOrEmpty(textBoxCount.Text))
            {
                MessageBox.Show("Введены не все данные.", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            try
            {
                var model = new ComponentBindingModel
                {
                    Id = _id ?? 0,
                    Name = textBoxName.Text,
                    Price = int.Parse(textBoxPrice.Text),
                    Count = int.Parse(textBoxCount.Text)
                };
                var operationResult = _id.HasValue ? _componentLogic.Update(model) : _componentLogic.Create(model);
                if (!operationResult)
                {
                    throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
                }
                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
                DialogResult = DialogResult.OK;
                Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void buttonAdd_Click(object sender, EventArgs e)
        {
            var service = Program.ServiceProvider?.GetService(typeof(FormComponentProvider));
            if (service is FormComponentProvider form)
            {
                if (form.ShowDialog() == DialogResult.OK)
                {
                    if (form.ProviderModel == null)
                    {
                        return;
                    }
                    _componentProviders.Add((form.ProviderModel, form.Count, form.Date));
                    LoadData();
                }
            }
        }

        private void ButtonUpd_Click(object sender, EventArgs e)
        {
            if (dataGridView.SelectedRows.Count == 1)
            {
                var service =
               Program.ServiceProvider?.GetService(typeof(FormComponentProvider));
                if (service is FormComponentProvider form)
                {
                    int id =
                   Convert.ToInt32(dataGridView.SelectedRows[0].Cells[0].Value);
                    form.Id = id;
                    form.Count = _componentProviders[id].Item2;
                    form.Date = _componentProviders[id].Item3;
                    if (form.ShowDialog() == DialogResult.OK)
                    {
                        if (form.ProviderModel == null)
                        {
                            return;
                        }
                        _componentProviders[form.Id] = (form.ProviderModel, form.Count, form.Date);
                        LoadData();
                    }
                }
            }
        }

        private void ButtonDel_Click(object sender, EventArgs e)
        {
            if (dataGridView.SelectedRows.Count == 1)
            {
                if (MessageBox.Show("Удалить запись?", "Вопрос",
               MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
                {
                    try
                    {
                        _componentProviders?.Remove(((IProviderModel, int, DateTime))dataGridView.SelectedRows[0].Cells[0].Value);
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.Message, "Ошибка",
                       MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                    LoadData();
                }
            }
        }

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

        private void LoadData()
        {
            try
            {
                if (_componentProviders != null)
                {
                    dataGridView.Rows.Clear();
                    foreach (var pc in _componentProviders)
                    {
                        dataGridView.Rows.Add(new object[] { pc.Item1.Name, pc.Item2, pc.Item3 });
                    }
                    textBoxCount.Text = CalcCount().ToString();
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
               MessageBoxIcon.Error);
            }
        }

        private double CalcCount()
        {
            double count = 0;
            foreach (var elem in _componentProviders)
            {
                count += elem.Item2;
            }
            return count;
        }
    }
}