PIbd-21_SagirovM.M._SUBD/Journal/FormTeacher.cs

using JournalContracts.BindingModels;
using JournalContracts.BusinessLogicContracts;
using JournalContracts.SearchModels;
using JournalDataModels.Models;
using JournalView;


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
 
using System.Windows.Forms;

namespace JournalView
{
    public partial class FormTeacher : Form
    {

        private readonly ISubjectLogic _logicP;
        private readonly ITeacherLogic _logicC;
        private int? _id;
        private Dictionary<int, ISubjectModel> _teacherSubjects;
        public int Id { set { _id = value; } }

        public FormTeacher(ISubjectLogic plogic, ITeacherLogic clogic)
        {
            InitializeComponent();
            _logicP = plogic;
            _logicC = clogic;
            _teacherSubjects = new Dictionary<int, ISubjectModel>();
        }

        private void FormTeacher_Load(object sender, EventArgs e)
        {
            if (_id.HasValue)
            {
                try
                {
                    var view = _logicC.ReadElement(new TeacherSearchModel { Id = _id.Value });
                    if (view != null)
                    {
                        textBoxFCS.Text = view.TeacherName;
                        textBoxCafedra.Text = view.Cafedra;
                        textBoxPosition.Text = view.Position;
                        textBoxExperience.Text = view.Experience.ToString();
                        _teacherSubjects = view.TeacherSubjects ?? new Dictionary<int, ISubjectModel>();
                        LoadData();
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

        private void LoadData()
        {
             try
             {
                 if (_teacherSubjects != null)
                 {
                     dataGridView.Rows.Clear();
                     foreach (var rc in _teacherSubjects)
                     {
                         dataGridView.Rows.Add(new object[] {rc.Key ,rc.Value.SubjectName });
                     }
                 }
             }
             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(FormSelectSubject));
            if (service is FormSelectSubject form)
            {
                if (form.ShowDialog() == DialogResult.OK)
                {
                    if (form.SubjectModel == null)
                    {
                        return;
                    }
                    if (_teacherSubjects.ContainsKey(form.Id))
                    {
                        _teacherSubjects[form.Id] = form.SubjectModel;
                    }
                    else
                    {
                        _teacherSubjects.Add(form.Id, form.SubjectModel);
                    }
                    LoadData();
                }
            }
        }

        private void buttonUpd_Click(object sender, EventArgs e)
        {
            if (dataGridView.SelectedRows.Count == 1)
            {
                var service = Program.ServiceProvider?.GetService(typeof(FormSelectSubject));
                if (service is FormSelectSubject form)
                {
                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells[0].Value);
                    form.Id = id;
                    if (form.ShowDialog() == DialogResult.OK)
                    {
                        if (form.SubjectModel == null)
                        {
                            return;
                        }
                        _teacherSubjects[form.Id] = form.SubjectModel;
                        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
                    {
                        _teacherSubjects?.Remove(Convert.ToInt32(dataGridView.SelectedRows[0].Cells[0].Value));
                    }
                    catch (Exception ex)
                    {
                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                    LoadData();
                }
            }
        }

        private void buttonSave_Click(object sender, EventArgs e)
        {
            if (_teacherSubjects == null || _teacherSubjects.Count == 0)
            {
                MessageBox.Show("Заполните предметы", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            try
            {
                var model = new TeacherBindingModel
                {
                    Id = _id ?? 0,
                    TeacherName = textBoxFCS.Text,
                    TeacherSubjects = _teacherSubjects,
                    Cafedra = textBoxCafedra.Text,
                    Experience = Convert.ToInt32(textBoxExperience.Text),
                    Position = textBoxPosition.Text,

                };
                var operationResult = _id.HasValue ? _logicC.Update(model) : _logicC.Create(model);
                if (!operationResult)
                {
                    throw new Exception("Ошибка при сохранении. Доп 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 buttonCancel_Click(object sender, EventArgs e)
        {
            DialogResult = DialogResult.Cancel;
            Close();
        }
    }
}