using ElectronicDiaryAbstractions.Models;
using ElectronicDiaryAbstractions.WorkAbstractions;

namespace ElectronicDiaryView
{
    public partial class FormHomework : Form
    {
        private readonly IHomeworkWork _homeworkLogic;

        private readonly IMarkWork _markLogic;

        public FormHomework(IHomeworkWork homeworkLogic, IMarkWork markLogic)
        {
            InitializeComponent();
            _homeworkLogic = homeworkLogic;
            _markLogic = markLogic;
        }

        private void FormHomework_Load(object sender, EventArgs e)
        {
            LoadData();
        }

        private void LoadData()
        {
            var homeworks = _homeworkLogic.GetAll();

            dataGridView.Rows.Clear();

            if (dataGridView.ColumnCount == 0)
            {
                dataGridView.Columns.Add("Id", "ID");
                dataGridView.Columns.Add("Description", "Описание");
                dataGridView.Columns.Add("Deadline", "Срок сдачи");
                dataGridView.Columns.Add("IsAccepted", "Состояние сдачи");
                dataGridView.Columns.Add("MarkId", "MarkId");
                dataGridView.Columns["MarkId"].Visible = false;
                dataGridView.Columns.Add("Mark", "Оценка");
            }

            dataGridView.Columns["Description"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
            dataGridView.Columns["Deadline"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
            dataGridView.Columns["IsAccepted"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
            dataGridView.Columns["Mark"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;

            comboBoxMark.DataSource = _markLogic.GetAll();
            comboBoxMark.DisplayMember = "Value";
            comboBoxMark.ValueMember = "Id";

            foreach (var homework in homeworks)
            {
                dataGridView.Rows.Add(homework.Id, homework.Description, homework.Deadline, homework.IsAccepted ? "Принято" : "Не принято", homework.MarkId, _markLogic.Get(homework.MarkId)?.Value);
            }
        }

        private void ButtonCreate_Click(object sender, EventArgs e)
        {
            Homework newHomework = new()
            {
                Description = textBoxDescription.Text,
                Deadline = dateTimePickerDeadline.Value,
                IsAccepted = checkBoxIsAccepted.Checked,
                MarkId = ((Mark?)comboBoxMark.SelectedItem)?.Id ?? 0,
            };

            _homeworkLogic.Create(newHomework);

            LoadData();
        }

        private void ButtonUpdate_Click(object sender, EventArgs e)
        {
            if (dataGridView.SelectedRows.Count > 0)
            {
                DataGridViewRow selectedRow = dataGridView.SelectedRows[0];
                int homeworkId = Convert.ToInt32(selectedRow.Cells["Id"].Value);

                Homework updatedHomework = new()
                {
                    Id = homeworkId,
                    Description = textBoxDescription.Text,
                    Deadline = dateTimePickerDeadline.Value,
                    IsAccepted = checkBoxIsAccepted.Checked,
                    MarkId = ((Mark?)comboBoxMark.SelectedItem)?.Id ?? 0,
                };

                _homeworkLogic.Update(updatedHomework);

                LoadData();
            }
            else
            {
                MessageBox.Show("Пожалуйста, выберите домашнее задание, которое необходимо обновить");
            }
        }

        private void ButtonDelete_Click(object sender, EventArgs e)
        {
            if (dataGridView.SelectedRows.Count > 0)
            {
                DataGridViewRow selectedRow = dataGridView.SelectedRows[0];
                int homeworkId = Convert.ToInt32(selectedRow.Cells["Id"].Value);

                _homeworkLogic.Delete(homeworkId);

                LoadData();
            }
            else
            {
                MessageBox.Show("Пожалуйста, выберите домашнее задание, которое необходимо удалить");
            }
        }

        private void DataGridView_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            if (e.RowIndex >= 0)
            {
                DataGridViewRow row = dataGridView.Rows[e.RowIndex];
                textBoxDescription.Text = row.Cells["Description"].Value.ToString();
                dateTimePickerDeadline.Value = Convert.ToDateTime(row.Cells["Deadline"].Value);
                checkBoxIsAccepted.Checked = row.Cells["IsAccepted"].Value.ToString() == "Принято";
                comboBoxMark.SelectedValue = Convert.ToInt32(row.Cells["MarkId"].Value);
            }
        }
    }
}