using Contracts.BindingModels;
using Contracts.BuisnessLogicsContracts;
using Contracts.ViewModels;
using Microsoft.EntityFrameworkCore.Diagnostics;
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 DeliveryApp
{
    public partial class FormType : Form
    {
        private readonly ITypeLogic _logic;
        List<TypeViewModel>? _list;
        public FormType(ITypeLogic logic)
        {
            InitializeComponent();
            _logic = logic;
        }

        private void FormType_Load(object sender, EventArgs e)
        {
            LoadData();
        }
        private void LoadData()
        {
            try
            {
                _list = _logic.ReadList(null);
                if (_list != null)
                {
                    dataGridView.DataSource = _list;
                    dataGridView.Columns["Id"].Visible = false;
                    dataGridView.Columns["PostType"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void dataGridView_UserAddedRow(object sender, DataGridViewRowEventArgs e)
        {

        }

        private void dataGridView_CellEndEdit(object sender, DataGridViewCellEventArgs e)
        {
            try
            {
                if (dataGridView.SelectedCells[1].Value == null)
                {
                    throw new Exception("Ошибка, нельзя сохранить пустую строку");
                }
                int _id;
                bool id = Int32.TryParse(dataGridView.SelectedRows[0].Cells["Id"].Value?.ToString(), out _id);
                if (_id == -1)
                {
                    id = false;
                }
                var model = new TypeBindingModel
                {
                    Id = id ? _id : 0,
                    PostType = dataGridView.SelectedCells[1].Value.ToString()!,
                };
                var operationResult = id ? _logic.Update(model) : _logic.Create(model);
                if (!operationResult)
                {
                    throw new Exception("Ошибка при сохранении.");
                }
                LoadData();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void dataGridView_KeyDown(object sender, KeyEventArgs e)
        {
            if(e.KeyCode == Keys.Insert) 
            {
                _list?.Add(new TypeViewModel { Id = -1, PostType = "" });
                if (_list != null)
                {
                    dataGridView.DataSource = null;
                    dataGridView.DataSource = _list;
                    dataGridView.Columns["Id"].Visible = false;
                    dataGridView.Columns["PostType"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
                }
            }
            if(e.KeyCode == Keys.Delete)
            {
                if (MessageBox.Show("Вы уверены?", "Удалить", MessageBoxButtons.YesNo, MessageBoxIcon.Question) != DialogResult.Yes)
                {
                    return;
                }
                int _id;
                bool id = Int32.TryParse(dataGridView.SelectedRows[0].Cells["Id"].Value?.ToString(), out _id);
                if (_id == -1 || !id)
                {
                    id = false;
                    return;
                }
                var model = new TypeBindingModel
                {
                    Id = _id,
                    PostType = dataGridView.SelectedCells[1].Value.ToString()!,
                };
                _logic.Delete(model);
                LoadData();
            }
        }
    }
}