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 System.Windows.Forms.VisualStyles;
using WarmlyShip.DrawningObjects;

namespace WarmlyShip
{
    /// <summary>
    /// Форма создания объекта
    /// </summary>
    public partial class FormShipConfig : Form
    {
        /// <summary>
        /// Переменная-выбранный корабль
        /// </summary>
        DrawningShip? _ship = null;

        /// <summary>
        /// Событие
        /// </summary>
        private event Action<DrawningShip>? EventAddShip;

        /// <summary>
        /// Конструктор
        /// </summary>
        public FormShipConfig()
        {
            InitializeComponent();
            panelBlack.MouseDown += PanelColor_MouseDown;
            panelPurple.MouseDown += PanelColor_MouseDown;
            panelGray.MouseDown += PanelColor_MouseDown;
            panelGreen.MouseDown += PanelColor_MouseDown;
            panelRed.MouseDown += PanelColor_MouseDown;
            panelWhite.MouseDown += PanelColor_MouseDown;
            panelYellow.MouseDown += PanelColor_MouseDown;
            panelBlue.MouseDown += PanelColor_MouseDown;
            labelSimpleObject.MouseDown += LabelObject_MouseDown;
            labelModifiedObject.MouseDown += LabelObject_MouseDown;
            buttonCancel.Click += (s, e) => Close();
        }

        /// <summary>
        /// Отрисовать корабль
        /// </summary>
        private void DrawShip()
        {
            Bitmap bmp = new(pictureBoxObject.Width, pictureBoxObject.Height);
            Graphics gr = Graphics.FromImage(bmp);
            _ship?.SetPosition(5, 5);
            _ship?.DrawTransport(gr);
            pictureBoxObject.Image = bmp;
        }

        /// <summary>
        /// Добавление события
        /// </summary>
        /// <param name="ev">Привязанный метод</param>
        public void AddEvent(Action<DrawningShip> ev)
        {
            if (EventAddShip == null)
            {
                EventAddShip = ev;
            }
            else
            {
                EventAddShip += ev;
            }
        }

        /// <summary>
        /// Передаем информацию при нажатии на Label
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void LabelObject_MouseDown(object sender, MouseEventArgs e)
        {
            (sender as Label)?.DoDragDrop((sender as Label)?.Name, DragDropEffects.Move | DragDropEffects.Copy);
        }

        /// <summary>
        /// Проверка получаемой информации (ее типа на соответствие требуемому)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void PanelObject_DragEnter(object sender, DragEventArgs e)
        {
            if (e.Data?.GetDataPresent(DataFormats.Text) ?? false)
            {
                e.Effect = DragDropEffects.Copy;
            }
            else
            {
                e.Effect = DragDropEffects.None;
            }
        }

        /// <summary>
        /// Действия при приеме перетаскиваемой информации
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void PanelObject_DragDrop(object sender, DragEventArgs e)
        {
            switch (e.Data?.GetData(DataFormats.Text).ToString())
            {
                case "labelSimpleObject":
                    _ship = new DrawningShip((int)numericUpDownSpeed.Value, (int)numericUpDownWeight.Value,
                         Color.White, pictureBoxObject.Width, pictureBoxObject.Height);
                    break;
                case "labelModifiedObject":
                    _ship = new DrawningWarmlyShip((int)numericUpDownSpeed.Value, (int)numericUpDownWeight.Value,
                         Color.White, Color.Black, checkBoxPipe.Checked, checkBoxFuelCompartment.Checked,
                         pictureBoxObject.Width, pictureBoxObject.Height);
                    break;
            }
            labelColor.BackColor = Color.Empty;
            labelExtraColor.BackColor = Color.Empty;
            DrawShip();
        }

        /// <summary>
        /// Отправляем цвет с панели
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void PanelColor_MouseDown(object sender, MouseEventArgs e)
        {
            (sender as Control)?.DoDragDrop((sender as Control)?.BackColor, DragDropEffects.Move | DragDropEffects.Copy);
        }

        /// <summary>
        /// Принимаем основной цвет
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void LabelColor_DragDrop(object sender, DragEventArgs e)
        {
            if (_ship == null)
            {
                return;
            }
            labelColor.BackColor = (Color)e.Data.GetData(typeof(Color));
            _ship.SetColor(labelColor.BackColor);
            DrawShip();
        }

        /// <summary>
        /// Проверка получаемой информации (ее типа на соответствие требуемому)
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void LabelColor_DragEnter(object sender, DragEventArgs e)
        {
            if (e.Data.GetDataPresent(typeof(Color)))
            {
                e.Effect = DragDropEffects.Copy;
            }
            else
            {
                e.Effect = DragDropEffects.None;
            }
        }

        /// <summary>
        /// Принимаем дополнительный цвет
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void LabelDopColor_DragDrop(object sender, DragEventArgs e)
        {
            if ((_ship == null) || (_ship is DrawningWarmlyShip == false))
            {
                return;
            }
            labelExtraColor.BackColor = (Color)e.Data.GetData(typeof(Color));
            ((DrawningWarmlyShip)_ship).SetAddColor(labelExtraColor.BackColor);
            DrawShip();
        }

        /// <summary>
        /// Добавление корабля
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void ButtonAdd_Click(object sender, EventArgs e)
        {
            EventAddShip?.Invoke(_ship);
            Close();
        }
    }
}