using System;
using System.Linq;

using MatterHackers.Agg;
using MatterHackers.Agg.UI;
using MatterHackers.Localizations;
using MatterHackers.MatterControl.PrinterCommunication;
using MatterHackers.SerialPortCommunication.FrostedSerial;

namespace MatterHackers.MatterControl.PrinterControls.PrinterConnections
{
    public class SetupStepComPortTwo : SetupConnectionWidgetBase
    {
        string[] startingPortNames;
        string[] currentPortNames;
        Button nextButton;
        Button connectButton;
        TextWidget printerErrorMessage;
        event EventHandler unregisterEvents;

        public SetupStepComPortTwo(ConnectionWindow windowController, GuiWidget containerWindowToClose, PrinterSetupStatus setupPrinterStatus)
            : base(windowController, containerWindowToClose, setupPrinterStatus)
        {

            startingPortNames = FrostedSerialPort.GetPortNames();
            contentRow.AddChild(createPrinterConnectionMessageContainer());
            {
                //Construct buttons
				nextButton = textImageButtonFactory.Generate(LocalizedString.Get("Done"));
                nextButton.Click += new EventHandler(NextButton_Click);
                nextButton.Visible = false;

				connectButton = textImageButtonFactory.Generate(LocalizedString.Get("Connect"));
                connectButton.Click += new EventHandler(ConnectButton_Click);

                PrinterConnectionAndCommunication.Instance.CommunicationStateChanged.RegisterEvent(onPrinterStatusChanged, ref unregisterEvents);

                GuiWidget hSpacer = new GuiWidget();
                hSpacer.HAnchor = HAnchor.ParentLeftRight;

                //Add buttons to buttonContainer
                footerRow.AddChild(nextButton);
                footerRow.AddChild(connectButton);
                footerRow.AddChild(hSpacer);

                footerRow.AddChild(cancelButton);
            }
        }

        public override void OnClosed(EventArgs e)
        {
            if (unregisterEvents != null)
            {
                unregisterEvents(this, null);
            }
            base.OnClosed(e);
        }

        public FlowLayoutWidget createPrinterConnectionMessageContainer()
        {
            FlowLayoutWidget container = new FlowLayoutWidget(FlowDirection.TopToBottom);
            container.VAnchor = VAnchor.ParentBottomTop;
            container.Margin = new BorderDouble(5);
            BorderDouble elementMargin = new BorderDouble(top: 5);

			string printerMessageOneText = LocalizedString.Get ("MatterControl will now attempt to auto-detect printer.");
			TextWidget printerMessageOne = new TextWidget(printerMessageOneText, 0, 0, 10);
            printerMessageOne.Margin = new BorderDouble(0, 10, 0, 5);
			printerMessageOne.TextColor = ActiveTheme.Instance.PrimaryTextColor;
            printerMessageOne.HAnchor = HAnchor.ParentLeftRight;
            printerMessageOne.Margin = elementMargin;

			string printerMessageTwoTxtBeg = LocalizedString.Get ("Disconnect printer");
			string printerMessageTwoTxtEnd = LocalizedString.Get ("if currently connected");
			string printerMessageTwoTxtFull = string.Format ("1.) {0} ({1}).", printerMessageTwoTxtBeg, printerMessageTwoTxtEnd);
			TextWidget printerMessageTwo = new TextWidget(printerMessageTwoTxtFull, 0, 0, 12);
			printerMessageTwo.TextColor = ActiveTheme.Instance.PrimaryTextColor;
            printerMessageTwo.HAnchor = HAnchor.ParentLeftRight;
            printerMessageTwo.Margin = elementMargin;

			string printerMessageThreeTxtBeg = LocalizedString.Get ("Press");
			string printerMessageThreeTxtEnd = LocalizedString.Get ("Continue");
			string printerMessageThreeTxtFull = string.Format ("2.) {0} '{1}'.", printerMessageThreeTxtBeg, printerMessageThreeTxtEnd);
			TextWidget printerMessageThree = new TextWidget(printerMessageThreeTxtFull, 0, 0, 12);
			printerMessageThree.TextColor = ActiveTheme.Instance.PrimaryTextColor;
            printerMessageThree.HAnchor = HAnchor.ParentLeftRight;
            printerMessageThree.Margin = elementMargin;

			string printerMessageFourBeg = LocalizedString.Get ("Power on and connect printer");
			string printerMessageFourFull = string.Format ("3.) {0}.", printerMessageFourBeg);
			TextWidget printerMessageFour = new TextWidget(printerMessageFourFull, 0, 0, 12);
			printerMessageFour.TextColor = ActiveTheme.Instance.PrimaryTextColor;
            printerMessageFour.HAnchor = HAnchor.ParentLeftRight;
            printerMessageFour.Margin = elementMargin;

			string printerMessageFiveTxtBeg = LocalizedString.Get ("Press");
			string printerMessageFiveTxtEnd = LocalizedString.Get ("Connect");
			string printerMessageFiveTxtFull = string.Format ("4.) {0} '{1}'.", printerMessageFiveTxtBeg, printerMessageFiveTxtEnd);
			TextWidget printerMessageFive = new TextWidget(printerMessageFiveTxtFull, 0, 0, 12);
			printerMessageFive.TextColor = ActiveTheme.Instance.PrimaryTextColor;
            printerMessageFive.HAnchor = HAnchor.ParentLeftRight;
            printerMessageFive.Margin = elementMargin;

            GuiWidget vSpacer = new GuiWidget();
            vSpacer.VAnchor = VAnchor.ParentBottomTop;

			Button manualLink = linkButtonFactory.Generate(LocalizedString.Get("Manual Configuration"));
            manualLink.Margin = new BorderDouble(0, 5);
            manualLink.Click += new EventHandler(ManualLink_Click);

            printerErrorMessage = new TextWidget("", 0, 0, 10);
            printerErrorMessage.AutoExpandBoundsToText = true;
            printerErrorMessage.TextColor = RGBA_Bytes.Red;
            printerErrorMessage.HAnchor = HAnchor.ParentLeftRight;
            printerErrorMessage.Margin = elementMargin;

            container.AddChild(printerMessageOne);
            container.AddChild(printerMessageTwo);
            container.AddChild(printerMessageThree);
            container.AddChild(printerMessageFour);
            container.AddChild(printerMessageFive);
            container.AddChild(printerErrorMessage);
            container.AddChild(vSpacer);
            container.AddChild(manualLink);

            container.HAnchor = HAnchor.ParentLeftRight;
            return container;
        }

        void ManualLink_Click(object sender, EventArgs mouseEvent)
        {
            UiThread.RunOnIdle(MoveToManualConfiguration);
        }

        void MoveToManualConfiguration(object state)
        {
            Parent.AddChild(new SetupStepComPortManual((ConnectionWindow)Parent, Parent, this.currentPrinterSetupStatus));
            Parent.RemoveChild(this);
        }

        void ConnectButton_Click(object sender, EventArgs mouseEvent)
        {
            string candidatePort = null;
            currentPortNames = FrostedSerialPort.GetPortNames();
            foreach (string portName in currentPortNames)
            {
                if (!startingPortNames.Any(portName.Contains))
                {
                    candidatePort = portName;
                }
            }

            if (candidatePort == null)
            {
                printerErrorMessage.TextColor = RGBA_Bytes.Red;
				string printerErrorMessageLabelFull = LocalizedString.Get ("Oops! Printer could not be detected ");
				printerErrorMessage.Text = printerErrorMessageLabelFull;                
            }
            else
            {
                ActivePrinter.ComPort = candidatePort;
				printerErrorMessage.TextColor = ActiveTheme.Instance.PrimaryTextColor;
				string printerErrorMessageLabelTwo = LocalizedString.Get ("Attempting to connect");
				string printerErrorMessageLabelTwoFull = string.Format("{0}...",printerErrorMessageLabelTwo);
				printerErrorMessage.Text = printerErrorMessageLabelTwoFull;
                this.ActivePrinter.Commit();
                ActivePrinterProfile.Instance.ActivePrinter = this.ActivePrinter;
                PrinterConnectionAndCommunication.Instance.ConnectToActivePrinter();
                connectButton.Visible = false;                
            }     
        }

        void onPrinterStatusChanged(object sender, EventArgs e)
        {
            if (PrinterConnectionAndCommunication.Instance.PrinterIsConnected)
            {
                onConnectionSuccess();
            }
            else if (PrinterConnectionAndCommunication.Instance.CommunicationState != PrinterConnectionAndCommunication.CommunicationStates.AttemptingToConnect)
            {
                onConnectionFailed();
            }
        }

        void onConnectionFailed()
        {
            printerErrorMessage.TextColor = RGBA_Bytes.Red;
			printerErrorMessage.Text = LocalizedString.Get("Uh-oh! Could not connect to printer.");
            connectButton.Visible = true;
            nextButton.Visible = false;
        }

        void onConnectionSuccess()
        {
			printerErrorMessage.TextColor = ActiveTheme.Instance.PrimaryTextColor;
			string printerErrorMessageLabelThree = LocalizedString.Get ("Connection succeeded");
			string printerErrorMessageLabelThreeFull = string.Format ("{0}!", printerErrorMessageLabelThree);
			printerErrorMessage.Text = printerErrorMessageLabelThreeFull;
            nextButton.Visible = true;
            connectButton.Visible = false;
        }

        void NextButton_Click(object sender, EventArgs mouseEvent)
        {
            UiThread.RunOnIdle(DoNextButton_Click);
        }

        void DoNextButton_Click(object state)
        {
            Parent.Close();
        }
    }
}