using Microsoft.Extensions.Logging;
using TransportCompanyContracts.BindingModels;
using TransportCompanyContracts.BusinessLogicsContracts;
using TransportCompanyContracts.ViewModels;

namespace TransportCompanyView
{
    public partial class FormCreateTransportation : Form
    {
        private readonly ILogger _logger;
        private readonly ICargoLogic _logicC;
        private readonly IDriverLogic _logicD;
        private readonly ITransportLogic _logicT;
        private readonly IPointLogic _logicP;
        private readonly ITransportationLogic _logicTt;
        private List<CargoViewModel>? _cargoList;
        private List<DriverViewModel>? _driverList;
        private List<TransportViewModel>? _transportList;
        private List<PointViewModel>? _pointFromList;
        private List<PointViewModel>? _pointToList;

        public FormCreateTransportation(ILogger<FormCreateTransportation> logger, ICargoLogic logicC, IDriverLogic logicD, ITransportLogic logicT, IPointLogic logicP, ITransportationLogic logicTt)
        {
            InitializeComponent();
            _logger = logger;
            _logicC = logicC;
            _logicD = logicD;
            _logicT = logicT;
            _logicP = logicP;
            _logicTt = logicTt;
        }

        private void FormCreateTransportation_Load(object sender, EventArgs e)
        {
            _cargoList = _logicC.ReadList(null);
            _driverList = _logicD.ReadList(null);
            _transportList = _logicT.ReadList(null);
            _pointFromList = _logicP.ReadList(null);
            _pointToList = _logicP.ReadList(null);

            if (_cargoList != null)
            {
                comboBoxCargo.DisplayMember = "CargoName";
                comboBoxCargo.ValueMember = "Id";
                comboBoxCargo.DataSource = _cargoList;
                comboBoxCargo.SelectedItem = null;
                _logger.LogInformation("Загрузка грузов для транспортировки");
            }

            if (_driverList != null)
            {
                comboBoxDriver.DisplayMember = "DriverFio";
                comboBoxDriver.ValueMember = "Id";
                comboBoxDriver.DataSource = _driverList;
                comboBoxDriver.SelectedItem = null;
                _logger.LogInformation("Загрузка водителей для транспортировки");
            }

            if (_transportList != null)
            {
                comboBoxTransport.DisplayMember = "Model";
                comboBoxTransport.ValueMember = "Id";
                comboBoxTransport.DataSource = _transportList;
                comboBoxTransport.SelectedItem = null;
                _logger.LogInformation("Загрузка машин для транспортировки");
            }

            if (_pointFromList != null)
            {
                comboBoxPointFrom.DisplayMember = "PointName";
                comboBoxPointFrom.ValueMember = "Id";
                comboBoxPointFrom.DataSource = _pointFromList;
                comboBoxPointFrom.SelectedItem = null;
                _logger.LogInformation("Загрузка пунктов отправления для транспортировки");
            }

            if (_pointToList != null)
            {
                comboBoxPointTo.DisplayMember = "PointName";
                comboBoxPointTo.ValueMember = "Id";
                comboBoxPointTo.DataSource = _pointToList;
                comboBoxPointTo.SelectedItem = null;
                _logger.LogInformation("Загрузка пунктов прибытия для транспортировки");
            }
        }

        private void ButtonSave_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(textBoxCount.Text))
            {
                MessageBox.Show("Заполните поле Количество", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (comboBoxCargo.SelectedValue == null)
            {
                MessageBox.Show("Выберите груз", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (string.IsNullOrEmpty(textBoxCount.Text))
            {
                MessageBox.Show("Заполните количество груза", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (comboBoxDriver.SelectedValue == null)
            {
                MessageBox.Show("Выберите водителя", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (comboBoxTransport.SelectedValue == null)
            {
                MessageBox.Show("Выберите машину", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (comboBoxPointFrom.SelectedValue == null)
            {
                MessageBox.Show("Выберите пункт отправки", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            if (comboBoxPointTo.SelectedValue == null)
            {
                MessageBox.Show("Выберите пункт прибытия", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            _logger.LogInformation("Создание транспортировки");
            try
            {
                var selectedCargo = _cargoList?.FirstOrDefault(c => c.Id == Convert.ToInt32(comboBoxCargo.SelectedValue));
                var selectedTransport = _transportList?.FirstOrDefault(t => t.Id == Convert.ToInt32(comboBoxTransport.SelectedValue));

                var cargoWeight = selectedCargo?.Weight ?? 0;
                var totalCount = Convert.ToInt32(textBoxCount.Text);
                var totalWeight = cargoWeight * totalCount;

                if (totalWeight > selectedTransport?.LoadCapacity)
                {
                    MessageBox.Show("Вес груза превышает вместимость выбранной машины", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                    return;
                }

                var operationResult = _logicTt.CreateTransportation(new TransportationBindingModel
                {
                    DriverId = Convert.ToInt32(comboBoxDriver.SelectedValue),
                    TransportId = Convert.ToInt32(comboBoxTransport.SelectedValue),
                    CargoId = Convert.ToInt32(comboBoxCargo.SelectedValue),
                    Count = Convert.ToInt32(textBoxCount.Text),
                    PointToId = Convert.ToInt32(comboBoxPointTo.SelectedValue),
                    PointFromId = Convert.ToInt32(comboBoxPointFrom.SelectedValue),
                });
                if (!operationResult)
                {
                    throw new Exception("Ошибка при создании транспортировки. Дополнительная информация в логах.");
                }
                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
                DialogResult = DialogResult.OK;
                Close();
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Ошибка создания транспортировки");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

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