using WarmlyShip.Generics;
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;
using WarmlyShip.DrawningObjects;
using WarmlyShip.MovementStrategy;

namespace WarmlyShip
{
    /// <summary>
    /// Форма для работы с набором объектов класса DrawningShip
    /// </summary>
    public partial class FormShipCollection : Form
    {
        /// <summary>
        /// Набор объектов
        /// </summary>
        private readonly ShipsGenericStorage _storage;

        /// <summary>
        /// Конструктор
        /// </summary>
        public FormShipCollection()
        {
            InitializeComponent();
            _storage = new ShipsGenericStorage(pictureBoxCollection.Width, pictureBoxCollection.Height);
        }

        /// <summary>
        /// Заполнение ListBoxObjects
        /// </summary>
        private void ReloadObjects()
        {
            int index = ListBoxObjects.SelectedIndex;

            ListBoxObjects.Items.Clear();
            for (int i = 0; i < _storage.Keys.Count; i++)
            {
                ListBoxObjects.Items.Add(_storage.Keys[i]);
            }

            if (ListBoxObjects.Items.Count > 0 && (index == -1 || index >= ListBoxObjects.Items.Count))
            {
                ListBoxObjects.SelectedIndex = 0;
            }

            else if (ListBoxObjects.Items.Count > 0 && index > -1 && index < ListBoxObjects.Items.Count)
            {
                ListBoxObjects.SelectedIndex = index;
            }
        }

        /// <summary>
        /// Добавление набора в коллекцию
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ButtonAddObject_Click(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(textBoxStorageName.Text))
            {
                MessageBox.Show("Не все данные заполнены", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            _storage.AddSet(textBoxStorageName.Text);
            ReloadObjects();
        }

        /// <summary>
        /// Выбор набора
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ListBoxObjects_SelectedIndexChanged(object sender, EventArgs e)
        {
            pictureBoxCollection.Image = _storage[ListBoxObjects.SelectedItem?.ToString() ?? string.Empty]?.ShowShips();
        }

        /// <summary>
        /// Удаление набора
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ButtonDelObject_Click(object sender, EventArgs e)
        {
            if (ListBoxObjects.SelectedIndex == -1)
            {
                return;
            }
            if (MessageBox.Show($"Удалить объект {ListBoxObjects.SelectedItem}?", "Удаление", MessageBoxButtons.YesNo,
                MessageBoxIcon.Question) == DialogResult.Yes)
            {
                _storage.DelSet(ListBoxObjects.SelectedItem.ToString()
                ?? string.Empty);
                ReloadObjects();
            }
        }

        /// <summary>
        /// Добавление объекта в набор
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ButtonAddShip_Click(object sender, EventArgs e)
        {
            if (ListBoxObjects.SelectedIndex == -1)
            {
                return;
            }
            var obj = _storage[ListBoxObjects.SelectedItem.ToString() ?? string.Empty];
            if (obj == null)
            {
                return;
            }

            FormShipConfig form = new();
            form.Show();
            Action<DrawningShip>? shipDelegate = new((m) =>
            {
                bool isAdditionSuccessful = (obj + m);
                if (isAdditionSuccessful)
                {
                    MessageBox.Show("Объект добавлен");
                    m.ChangePictureBoxSize(pictureBoxCollection.Width, pictureBoxCollection.Height);
                    pictureBoxCollection.Image = obj.ShowShips();
                }
                else
                {
                    MessageBox.Show("Не удалось добавить объект");
                }
            });
            form.AddEvent(shipDelegate);
        }

        /// <summary>
        /// Удаление объекта из набора
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ButtonDeleteShip_Click(object sender, EventArgs e)
        {
            if (ListBoxObjects.SelectedIndex == -1)
            {
                return;
            }
            var obj = _storage[ListBoxObjects.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(maskedTextBoxNumber.Text);
            if (obj - pos != null)
            {
                MessageBox.Show("Объект удален");
                pictureBoxCollection.Image = obj.ShowShips();
            }
            else
            {
                MessageBox.Show("Не удалось удалить объект");
            }
        }

        /// <summary>
        /// Обновление рисунка по набору
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ButtonRefreshCollection_Click(object sender, EventArgs e)
        {
            if (ListBoxObjects.SelectedIndex == -1)
            {
                return;
            }
            var obj = _storage[ListBoxObjects.SelectedItem.ToString() ??
            string.Empty];
            if (obj == null)
            {
                return;
            }
            pictureBoxCollection.Image = obj.ShowShips();
        }

        /// <summary>
        /// Обработка нажатия "Сохранение"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        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);
                }
            }
        }

        /// <summary>
        /// Обработка нажатия "Загрузка"
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void LoadToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                if (_storage.LoadData(openFileDialog.FileName))
                {
                    MessageBox.Show("Загрузка прошла успешно", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    foreach (var collection in _storage.Keys)
                    {
                        ListBoxObjects.Items.Add(collection);
                    }
                }
                else
                {
                    MessageBox.Show("Не загрузилось", "Результат", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }
    }
}