using ConstructionCompanyContracts.BusinessLogicContracts;
using ConstructionCompanyContracts.ViewModels;
using ConstructionCompanyContracts.BindingModels;
using ConstructionCompanyContracts.SearchModels;
using Microsoft.Extensions.Logging;
using System;
using System.Collections;
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 ConstructionCompanyView
{
    public partial class FormMaterialOrder : Form
    {
        private readonly ILogger _logger;
        private readonly IOrderLogic _order;
        private readonly IMaterialLogic _material;
        private readonly IMaterialOrderLogic _materialOrder;
        private List<MaterialViewModel>? _listM;
        private List<OrderViewModel>? _listO;
        private int _quantity = -1;
        public FormMaterialOrder(ILogger<FormMaterialOrder> logger, IOrderLogic order, IMaterialLogic material, IMaterialOrderLogic materialOrder)
        {
            InitializeComponent();
            _logger = logger;
            _order = order;
            _material = material;
            _materialOrder = materialOrder;
        }

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

        private void buttonCreate_Click(object sender, EventArgs e)
        {
            if (comboBoxOrder.SelectedValue == null)
            {
                MessageBox.Show("Выберите заказ", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (comboBoxMaterial.SelectedValue == null)
            {
                MessageBox.Show("Выберите материал", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (string.IsNullOrEmpty(textBoxQuantity.Text))
            {
                MessageBox.Show("Заполните количество", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (Convert.ToInt32(textBoxQuantity.Text) > _quantity)
            {
                MessageBox.Show("На складе столько нет!", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            try
            {
                var model = new MaterialOrderBindingModel
                {
                    MaterialId = Convert.ToInt32(comboBoxMaterial.SelectedValue),
                    OrderId = Convert.ToInt32(comboBoxOrder.SelectedValue),
                    Quantity = Convert.ToInt32(textBoxQuantity.Text)
                };
                var operationResult = _materialOrder.Create(model);
                if (!operationResult)
                {
                    throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
                }
                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
                var material = _material.ReadElement(new MaterialSearchModel { Id = Convert.ToInt32(comboBoxMaterial.SelectedValue) });
                material.Quantity -= Convert.ToInt32(textBoxQuantity.Text);
                _material.Update(new MaterialBindingModel { Id = material.Id, MaterialName = material.MaterialName, Quantity = material.Quantity });
                DialogResult = DialogResult.OK;
                Close();
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Ошибка сохранения компонента");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void FormMaterialOrder_Load(object sender, EventArgs e)
        {
            _logger.LogInformation("Загрузка материалов для заказа");
            _listM = _material.ReadList(null);
            if (_listM != null)
            {
                comboBoxMaterial.DisplayMember = "MaterialName";
                comboBoxMaterial.ValueMember = "Id";
                comboBoxMaterial.DataSource = _listM;
                comboBoxMaterial.SelectedItem = null;
            }
            _listO = _order.ReadList(null);
            if (_listO != null)
            {
                comboBoxOrder.DisplayMember = "Adress";
                comboBoxOrder.ValueMember = "Id";
                comboBoxOrder.DataSource = _listO;
                comboBoxOrder.SelectedItem = null;
            }
        }

        private void comboBoxMaterial_SelectedValueChanged(object sender, EventArgs e)
        {
            if (comboBoxMaterial.SelectedValue == null)
            {
                labelQuantity.Text = "Единиц на складе: ";
                _quantity = -1;
            }
            else
            {
                var quantity = _material.ReadElement(new MaterialSearchModel { Id = Convert.ToInt32(comboBoxMaterial.SelectedValue) })?.Quantity;
                labelQuantity.Text = $"Единиц на складе: {(quantity.HasValue ? quantity.Value : "")}";
                _quantity = quantity.HasValue ? quantity.Value : -1;
            }
        }
    }
}