using System.Windows.Forms;

namespace ElectricLocomotive;

public partial class FormLocomotivCollection : Form {
    private readonly LocosGenericStorage _storage;
    public FormLocomotivCollection() {
        InitializeComponent();
        _storage = new(collectionPictureBox.Width, collectionPictureBox.Height);
    }
    private void ReloadObjects() {
        int index = storageListBox.SelectedIndex;
        storageListBox.Items.Clear();
        for (int i = 0; i < _storage.Keys.Count; i++) {
            storageListBox.Items.Add(_storage.Keys[i]);
        }
        if (storageListBox.Items.Count > 0 && (index == -1 || index
                >= storageListBox.Items.Count)) {
            storageListBox.SelectedIndex = 0;
        }
        else if (storageListBox.Items.Count > 0 && index > -1 &&
                 index < storageListBox.Items.Count) {
            storageListBox.SelectedIndex = index;
        }
    }

    private void addLocomotiv_Click(object sender, EventArgs e) {
        if (storageListBox.SelectedIndex == -1) {
            return;
        }
        var obj = _storage[storageListBox.SelectedItem.ToString() ?? string.Empty];
        if (obj == null) {
            return;
        }
        FormLocoConfig form = new();
        form.Show();
        Action<DrawingLocomotiv>? monorailDelegate = new((m) => {
            bool q = (obj + m);
            if (q) {
                MessageBox.Show("Объект добавлен");
                m.ChangePictureBoxSize(collectionPictureBox.Width, collectionPictureBox.Height);
                collectionPictureBox.Image = obj.ShowLocos();
            }
            else {
                MessageBox.Show("Не удалось добавить объект");
            }
        });
        form.AddEvent(monorailDelegate);
    }
    private void deleteLoco_Click(object sender, EventArgs e) {
        if (storageListBox.SelectedIndex == -1) {
            return;
        }
        var obj = _storage[storageListBox.SelectedItem.ToString() ??
                           string.Empty];
        if (obj == null) {
            return;
        }
        if (MessageBox.Show("Удалить объект?", "Удаление",
                MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No) {
            return;
        }
        int pos = Convert.ToInt32(locoIndexInput.Text);
        if (obj - pos != null) {
            MessageBox.Show("Объект удален");
            collectionPictureBox.Image = obj.ShowLocos();
        }
        else {
            MessageBox.Show("Не удалось удалить объект");
        }
    }

    private void refreshCollection_Click(object sender, EventArgs e) {
        if (storageListBox.SelectedIndex == -1) {
            return;
        }
        var obj = _storage[storageListBox.SelectedItem.ToString() ??
                           string.Empty];
        if (obj == null) {
            return;
        }
        collectionPictureBox.Image = obj.ShowLocos();
    }
    private void storagesListBox_SelectedIndexChanged(object sender, EventArgs e) {
        collectionPictureBox.Image =
            _storage[storageListBox.SelectedItem?.ToString() ?? string.Empty]?.ShowLocos();
    }

    private void delStorageButton_Click(object sender, EventArgs e) {
        if (storageListBox.SelectedIndex == -1) {
            return;
        }
        if (MessageBox.Show($"Удалить объект{storageListBox.SelectedItem}?", "Удаление", MessageBoxButtons.YesNo,
                MessageBoxIcon.Question) == DialogResult.Yes) {
            _storage.DelSet(storageListBox.SelectedItem.ToString()
                            ?? string.Empty);
            ReloadObjects();
        }

    }

    private void addStorageButton_Click(object sender, EventArgs e) {
        if (string.IsNullOrEmpty(storageIndexInput.Text)) {
            MessageBox.Show("Не все данные заполнены", "Ошибка",
                MessageBoxButtons.OK, MessageBoxIcon.Error);
            return;
        }
        _storage.AddSet(storageIndexInput.Text);
        ReloadObjects();
    }

    private void SaveToolStripMenuItem_Click(object sender, EventArgs e) {
        if (saveFileDialog.ShowDialog() == DialogResult.OK) {
            if (_storage.SaveData(saveFileDialog.FileName)) {
                MessageBox.Show("Сохранение прошло успешно",
                    "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            else {
                MessageBox.Show("Не сохранилось", "Результат",
                    MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
    }

    private void LoadToolStripMenuItem_Click(object sender, EventArgs e) {
        if (loadFileDialog.ShowDialog() == DialogResult.OK) {
            if (_storage.LoadData(loadFileDialog.FileName)) {
                MessageBox.Show("Загрузка прошла успешно",
                    "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
                foreach (var collection in _storage.Keys) {
                    storageListBox.Items.Add(collection);
                }
            }
            else {
                MessageBox.Show("Не загрузилось", "Результат",
                    MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }
    }
}