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 ProjectLainer.DrawningObjects;
using ProjectLainer.Generics;
using ProjectLainer.MovementStrategy;

namespace ProjectLainer
{
    public partial class FormLainerCollection : Form
    {
        private readonly LainersGenericStorage _storage;
        public FormLainerCollection()
        {
            InitializeComponent();
            _storage = new LainersGenericStorage(pictureBoxCollection.Width,
            pictureBoxCollection.Height);
        }
        private void ReloadObjects()
        {
            int index = listBoxStorages.SelectedIndex;
            listBoxStorages.Items.Clear();
           
            foreach (string key in _storage.Keys)
            {
                listBoxStorages.Items.Add(key);
                if (listBoxStorages.Items.Count > 0 && (index == -1 || index >= listBoxStorages.Items.Count))
                {
                    listBoxStorages.SelectedIndex = 0;
                }
                else if (listBoxStorages.Items.Count > 0 && index > -1 && index < listBoxStorages.Items.Count)
                {
                    listBoxStorages.SelectedIndex = index;
                }
            }   
        }
        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();
        }
        private void ButtonDelObject_Click(object sender, EventArgs e)
        {
            if (listBoxStorages.SelectedIndex == -1)
            {
                return;
            }
            if (MessageBox.Show($"Удалить объект {listBoxStorages.SelectedItem}?", "Удаление", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
            {
                _storage.DelSet(listBoxStorages.SelectedItem.ToString()
                ?? string.Empty);
                ReloadObjects();
            }
        }
        private void ButtonAddLainer_Click(object sender, EventArgs e)
        {
            if (listBoxStorages.SelectedIndex == -1)
            {
                return;
            }
            var obj = _storage[listBoxStorages.SelectedItem.ToString() ?? string.Empty];
            if (obj == null)
            {
                return;
            }
            LainerForm form = new();
            if (form.ShowDialog() == DialogResult.OK)
            {
                if (obj + form.SelectedLainer)
                {
                    MessageBox.Show("Объект добавлен");
                    pictureBoxCollection.Image = obj.ShowLainers();
                }
                else
                {
                    MessageBox.Show("Не удалось добавить объект");
                }
            }
        }
        private void ButtonRemove_Click(object sender, EventArgs e)
        {
            if (listBoxStorages.SelectedIndex == -1)
            {
                return;
            }
            var obj = _storage[listBoxStorages.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.ShowLainers();
            }
            else
            {
                MessageBox.Show("Не удалось удалить объект");
            }
        }
        private void ButtonRefreshCollection_Click(object sender, EventArgs e)
        {
            if (listBoxStorages.SelectedIndex == -1)
            {
                return;
            }
            var obj = _storage[listBoxStorages.SelectedItem.ToString() ??
            string.Empty];
            if (obj == null)
            {
                return;
            }
            pictureBoxCollection.Image = obj.ShowLainers();
        }
        private void listBoxStorages_SelectedIndexChanged(object sender, EventArgs e)
        {
            pictureBoxCollection.Image = _storage[listBoxStorages.SelectedItem?.ToString() ?? string.Empty]?.ShowLainers();
        }
    }
}