using DocumentFormat.OpenXml.Office2010.Excel;
using Microsoft.Extensions.Logging;
using NPOI.OpenXmlFormats.Spreadsheet;
using System.ComponentModel;
using UniversityBusinessLogic.BusinessLogics;
using UniversityContracts.BindingModels;
using UniversityContracts.BusinessLogicsContracts;
using UniversityContracts.ViewModels;

namespace UniversityView
{
    public partial class FormStudent : Form
    {
        private readonly ILogger _logger;
        private readonly IStudentLogic _studentLogic;
        private readonly IDirectionLogic _directionLogic;
        private string imagePath;
        BindingList<DirectionBindingModel> _list;
        private int? _id;
        public int Id { set { _id = value; } }
        private string? _item;
        private string itemChecked { set { _item = value; } }
        List<string> directions = new();
        public FormStudent(ILogger<FormStudent> logger, IStudentLogic studentLogic, IDirectionLogic directionLogic)
        {
            InitializeComponent();
            _logger = logger;
            _studentLogic = studentLogic;
            _directionLogic = directionLogic;
            imagePath = "";
            _list = new BindingList<DirectionBindingModel>();
            componenttBox1.Pattern = @"^([\w\.\-]+)@([\w\-]+)((\.(\w){2,3})+)$";
            componenttBox1.setExample("example@mail.ru");
        }

        private void buttonSave_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(textBoxFIO.Text))
            {
                MessageBox.Show("Заполните ФИО", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (string.IsNullOrEmpty(componenttBox1.TextBoxValue))
            {
                MessageBox.Show("Заполните электронную почту", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (userCheckedListBox1.SelectedValue == null)
            {
                MessageBox.Show("Заполните направление", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (pictureBox.Image == null)
            {
                MessageBox.Show("Загрузите фото", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            _logger.LogInformation("Сохранение студента");
            try
            {
                _studentLogic.CreateOrUpdate(new StudentBindingModel
                {
                    Id = _id,
                    FIO = textBoxFIO.Text,
                    PhotoFilePath = imagePath,
                    Email = componenttBox1.TextBoxValue,                    
                    DirectionName = userCheckedListBox1.SelectedValue
                }); ;

                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
                DialogResult = DialogResult.OK;
                Close();
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Ошибка сохранения студента");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

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

        private void FormStudent_Load(object sender, EventArgs e)
        {
            LoadData();
            if (_id.HasValue)
            {
                try
                {
                    StudentViewModel? view = _studentLogic.Read(new StudentBindingModel { Id = _id.Value })?[0];
                    if (view != null)
                    {
                        textBoxFIO.Text = view.FIO;
                        componenttBox1.TextBoxValue = view.Email;
                        imagePath = view.PhotoFilePath;
                        string[] dirs = view.DirectionName.Split(";");
                        foreach (var dir in dirs)
                        {
                            userCheckedListBox1.SelectedValue = dir;
                        }                        
                        pictureBox.Image = Image.FromFile(imagePath);
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

        private void LoadData()
        {            
            _logger.LogInformation("Загрузка направлений");
            try
            {
                var list = _directionLogic.Read(null);
                userCheckedListBox1.ClearList();
                directions.Clear();
                _list.Clear();
                if (list != null)
                {
                    foreach (var item in list)
                    {
                        directions.Add(item.Name);
                        _list.Add(new DirectionBindingModel
                        {
                            Id = item.Id,
                            Name = item.Name,
                        });
                    }
                }
                userCheckedListBox1.FillList(directions);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Ошибка загрузки направлений");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void buttonAddPhoto_Click(object sender, EventArgs e)
        {
            OpenFileDialog openFileDialog = new()
            {
                Filter = "Image Files(*.BMP;*.JPG;*.GIF;*.PNG)|*.BMP;*.JPG;*.GIF;*.PNG|All files (*.*)|*.*"
            };

            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                imagePath = openFileDialog.FileName;
                pictureBox.Image = Image.FromFile(imagePath);
            }
        }
    }
}