using Microsoft.Extensions.Logging;
using RouteGuideBusinessLogics.BusinessLogics;
using RouteGuideContracts.BindingModels;
using RouteGuideContracts.BusinessLogicsContracts;
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 RouteGuideView
{
    /// <summary>
    /// Форма для вывода списка маршрутов
    /// </summary>
    public partial class FormRoutes : Form
    {
        /// <summary>
        /// Логгер
        /// </summary>
        private readonly ILogger _logger;

        /// <summary>
        /// Бизнес-логика
        /// </summary>
        private readonly IRouteLogic _routelogic;

        /// <summary>
        /// Конструктор
        /// </summary>
        public FormRoutes(ILogger<FormRoutes> logger, IRouteLogic routeLogic)
        {
            InitializeComponent();
            _logger = logger;
            _routelogic = routeLogic;
        }

        /// <summary>
        /// Загрузка данных
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void FormRoutes_Load(object sender, EventArgs e)
        {
            LoadData();
        }

        /// <summary>
        /// Кнопка "Создать"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void buttonCreate_Click(object sender, EventArgs e)
        {
            var service = Program.ServiceProvider?.GetService(typeof(FormRoute));
            if (service is FormRoute form)
            {
                if (form.ShowDialog() == DialogResult.OK)
                {
                    LoadData();
                }
            }
        }

        /// <summary>
        /// Кнопка "Изменить"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void buttonUpdate_Click(object sender, EventArgs e)
        {
            if (dataGridView.SelectedRows.Count == 1)
            {
                var service = Program.ServiceProvider?.GetService(typeof(FormRoute));
                if (service is FormRoute form)
                {
                    form.Id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
                    if (form.ShowDialog() == DialogResult.OK)
                    {
                        LoadData();
                    }
                }
            }
        }

        /// <summary>
        /// Кнопка "Удалить"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void buttonDelete_Click(object sender, EventArgs e)
        {
            if (dataGridView.SelectedRows.Count == 1)
            {
                if (MessageBox.Show("Удалить запись?", "Вопрос", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
                {
                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
                    _logger.LogInformation("Удаление сущности 'Маршрут'");

                    try
                    {
                        if (!_routelogic.Delete(new RouteBindingModel { Id = id }))
                        {
                            throw new Exception("Ошибка при удалении сущности 'Маршрут'. Дополнительная информация в логах.");
                        }
                        LoadData();
                    }
                    catch (Exception ex)
                    {
                        _logger.LogError(ex, "Ошибка удаления сущности 'Маршрут'");
                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    }
                }
            }
        }

        /// <summary>
        /// Кнопка "Обновить"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void buttonRefresh_Click(object sender, EventArgs e)
        {
            LoadData();
        }

        /// <summary>
        /// Загрузка данных
        /// </summary>
        private void LoadData()
        {
            try
            {
                var list = _routelogic.ReadList(null);
                if (list != null)
                {
                    dataGridView.DataSource = list;
                    dataGridView.Columns["Id"].Visible = false;
                    dataGridView.Columns["RouteStops"].Visible = false;
                    dataGridView.Columns["Name"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
                }
                _logger.LogInformation("Загрузка списка маршрутов");
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Ошибка загрузки списка маршрутов");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
    }
}