using Mesen.GUI.Config;
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 Mesen.GUI.Forms.Config
{
	public partial class frmInputConfig : BaseConfigForm
	{
		public frmInputConfig()
		{
			InitializeComponent();
			if(DesignMode) {
				return;
			}

			InputConfig cfg = ConfigManager.Config.Input.Clone();
			Entity = cfg;

			BaseConfigForm.InitializeComboBox((ComboBox)cboPlayer1, typeof(ControllerType), ControllerType.SuperScope);
			BaseConfigForm.InitializeComboBox((ComboBox)cboPlayer2, typeof(ControllerType), ControllerType.SuperScope);

			BaseConfigForm.InitializeComboBox((ComboBox)cboMultitap1, typeof(ControllerType), ControllerType.None, ControllerType.Multitap, ControllerType.SnesMouse, ControllerType.SuperScope);
			BaseConfigForm.InitializeComboBox((ComboBox)cboMultitap2, typeof(ControllerType), ControllerType.None, ControllerType.Multitap, ControllerType.SnesMouse, ControllerType.SuperScope);
			BaseConfigForm.InitializeComboBox((ComboBox)cboMultitap3, typeof(ControllerType), ControllerType.None, ControllerType.Multitap, ControllerType.SnesMouse, ControllerType.SuperScope);
			BaseConfigForm.InitializeComboBox((ComboBox)cboMultitap4, typeof(ControllerType), ControllerType.None, ControllerType.Multitap, ControllerType.SnesMouse, ControllerType.SuperScope);

			cboPlayer1.SetEnumValue(cfg.Controllers[0].Type);
			cboPlayer2.SetEnumValue(cfg.Controllers[1].Type);

			cboMultitap1.SetEnumValue(ControllerType.SnesController);
			cboMultitap2.SetEnumValue(ControllerType.SnesController);
			cboMultitap3.SetEnumValue(ControllerType.SnesController);
			cboMultitap4.SetEnumValue(ControllerType.SnesController);

			UpdateUiSections();
		}

		protected override void OnApply()
		{
			ConfigManager.Config.Input = (InputConfig)this.Entity;

			ConfigManager.Config.Input.Controllers[0].Type = cboPlayer1.GetEnumValue<ControllerType>();
			ConfigManager.Config.Input.Controllers[1].Type = cboPlayer2.GetEnumValue<ControllerType>();

			ConfigManager.Config.Input.Controllers[2].Type = ControllerType.SnesController;
			ConfigManager.Config.Input.Controllers[3].Type = ControllerType.SnesController;
			ConfigManager.Config.Input.Controllers[4].Type = ControllerType.SnesController;

			ConfigManager.ApplyChanges();
		}

		private int MultitapPort
		{
			get
			{
				if(cboPlayer1.GetEnumValue<ControllerType>() == ControllerType.Multitap) {
					return 0;
				} else if(cboPlayer2.GetEnumValue<ControllerType>() == ControllerType.Multitap) {
					return 1;
				}
				return -1;
			}
		}

		private void UpdateUiSections()
		{
			btnSetupP1.Enabled = cboPlayer1.GetEnumValue<ControllerType>() == ControllerType.SnesController;
			btnSetupP2.Enabled = cboPlayer2.GetEnumValue<ControllerType>() == ControllerType.SnesController;

			grpMultitap.Visible = this.MultitapPort >= 0;
			lblMultitap1.Text = ResourceHelper.GetMessage("PlayerNumber", (this.MultitapPort + 1).ToString()) + ":";
		}

		private void btnSetup_Click(object sender, EventArgs e)
		{
			int index = 0;
			ControllerType type = ControllerType.None;
			string selectedText = "";
			if(sender == btnSetupP1) {
				type = cboPlayer1.GetEnumValue<ControllerType>();
				selectedText = cboPlayer1.SelectedItem.ToString();
				index = 0;
			} else if(sender == btnSetupP2) {
				type = cboPlayer2.GetEnumValue<ControllerType>();
				selectedText = cboPlayer2.SelectedItem.ToString();
				index = 1;
			} else if(sender == btnSetupMultitap1) {
				type = ControllerType.SnesController;
				selectedText = cboMultitap1.SelectedItem.ToString();
				index = this.MultitapPort;
			} else if(sender == btnSetupMultitap2) {
				type = ControllerType.SnesController;
				selectedText = cboMultitap2.SelectedItem.ToString();
				index = 2;
			} else if(sender == btnSetupMultitap3) {
				type = ControllerType.SnesController;
				selectedText = cboMultitap3.SelectedItem.ToString();
				index = 3;
			} else if(sender == btnSetupMultitap4) {
				type = ControllerType.SnesController;
				selectedText = cboMultitap4.SelectedItem.ToString();
				index = 4;
			}

			BaseInputConfigForm frm = null;
			InputConfig cfg = (InputConfig)Entity;
			switch(type) {
				case ControllerType.SnesController:
					frm = new frmControllerConfig(cfg.Controllers[index], index);
					break;
						
				case ControllerType.SuperScope:
					//frm = new frmSuperScopeConfig();
					break;

				case ControllerType.SnesMouse:
					//frm = new frmMouseConfig();
					break;
			}

			if(frm != null) {
				OpenSetupWindow(frm, (Button)sender, selectedText, index);
			}
		}

		private void OpenSetupWindow(BaseInputConfigForm frm, Button btn, string title, int port)
		{
			Point point = btn.PointToScreen(new Point(0, btn.Height));
			Rectangle screen = Screen.FromControl(btn).Bounds;

			if(frm.Height + point.Y > screen.Bottom) {
				//Show on top instead
				point.Y -= btn.Height + frm.Height;

				if(point.Y < 0) {
					point.Y = 0;
				}
			}

			if(frm.Width + point.X > screen.Right) {
				//Show on left instead
				point.X -= frm.Width - btn.Width;
				if(point.X < 0) {
					point.X = 0;
				}
			}

			frm.Text = title;
			frm.StartPosition = FormStartPosition.Manual;
			frm.Top = point.Y;
			frm.Left = point.X;

			if(frm.ShowDialog(this) == DialogResult.OK) {
				InputConfig cfg = (InputConfig)Entity;
				cfg.Controllers[port] = frm.Config;
			}
			frm.Dispose();
		}
		
		private void cboPlayer1_SelectionChangeCommitted(object sender, EventArgs e)
		{
			//Prevent 2 multitaps from being connected at once, for now
			if(cboPlayer2.GetEnumValue<ControllerType>() == ControllerType.Multitap && cboPlayer1.GetEnumValue<ControllerType>() == ControllerType.Multitap) {
				cboPlayer2.SetEnumValue(ControllerType.SnesController);
			}
			UpdateUiSections();
		}

		private void cboPlayer2_SelectionChangeCommitted(object sender, EventArgs e)
		{
			//Prevent 2 multitaps from being connected at once, for now
			if(cboPlayer2.GetEnumValue<ControllerType>() == ControllerType.Multitap && cboPlayer1.GetEnumValue<ControllerType>() == ControllerType.Multitap) {
				cboPlayer1.SetEnumValue(ControllerType.SnesController);
			}
			UpdateUiSections();
		}
	}
}