using ProjectMonorail.Drawings;
using ProjectMonorail.Entities;
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;

namespace ProjectMonorail;

/// <summary>
/// Форма конфигурации объекта
/// </summary>
public partial class FormTrainConfig : Form
{
    /// <summary>
    /// Объект - прорисовка поезда
    /// </summary>
    private DrawingTrain? _train;

    /// <summary>
    /// Событие для передачи объекта
    /// </summary>
    private event Action<DrawingTrain>? TrainDelegate;
    /// <summary>
    /// Конструктор
    /// </summary>  
    public FormTrainConfig()
    {
        InitializeComponent();
        panelRed.MouseDown += Panel_MouseDown;
        panelGreen.MouseDown += Panel_MouseDown;
        panelBlue.MouseDown += Panel_MouseDown;
        panelYellow.MouseDown += Panel_MouseDown;
        panelWhite.MouseDown += Panel_MouseDown;
        panelGray.MouseDown += Panel_MouseDown;
        panelBlack.MouseDown += Panel_MouseDown;
        panelPurple.MouseDown += Panel_MouseDown;

        buttonCancel.Click += (sender, e) => Close();
    }

    /// <summary>
    /// Привязка внешнего метода к событию
    /// </summary>
    /// <param name="trainDelegate"></param>
    public void AddEvent(Action<DrawingTrain> trainDelegate)
    {
        TrainDelegate += trainDelegate;
    }

    /// <summary>
    /// Прорисовка объекта
    /// </summary>
    private void DrawObject()
    {
        Bitmap bmp = new(pictureBoxObject.Width, pictureBoxObject.Height);
        Graphics gr = Graphics.FromImage(bmp);
        _train?.SetPictureSize(pictureBoxObject.Width, pictureBoxObject.Height);
        _train?.SetPosition(20, 50);
        _train?.DrawTransport(gr);
        pictureBoxObject.Image = bmp;
    }

    /// <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 ?? string.Empty, 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)
    {
        e.Effect = e.Data?.GetDataPresent(DataFormats.Text) ?? false ? DragDropEffects.Copy : 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":
                _train = new DrawingTrain((int)numericUpDownSpeed.Value, (double)numericUpDownWeight.Value, Color.White);
                break;
            case "labelModifiedObject":
                _train = new DrawingMonorail((int)numericUpDownSpeed.Value, (double)numericUpDownWeight.Value, (int)numericUpDownWheels.Value, Color.White,
                    Color.Black, checkBoxRail.Checked, checkBoxSecondСarriage.Checked);
                break;
        }

        DrawObject();
    }

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

    /// <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)
    {
        e.Effect = e.Data?.GetDataPresent(typeof(Color)) ?? false ? DragDropEffects.Copy : DragDropEffects.None;
    }

    /// <summary>
    /// Действия при приеме перетаскиваемой информации
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void LabelColor_DragDrop(object? sender, DragEventArgs e)
    {
        if (_train == null || sender == null) { return; }
        Label colorof = (Label)sender;
        Color color = (Color)e.Data?.GetData(typeof(Color));

        switch (colorof?.Name)  
        {
            case "labelMainColor":
                _train.EntityTrain?.SetMainColor(color);
                DrawObject();
                break;
            case "labelAdditionalColor":
                if (_train is DrawingMonorail)
                {
                    (_train.EntityTrain as EntityMonorail).SetAdditionalColor(color);
                    DrawObject();
                }
                break;
            
        }
    }

    /// <summary>
    /// Передача объекта
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void ButtonAdd_Click(object? sender, EventArgs e)
    {
        if (_train != null)
        {
            TrainDelegate?.Invoke(_train);
            Close();
        }
    }
}