using Chromium;
using Chromium.Remote;
using Chromium.Remote.Event;
using Chromium.WebBrowser;
using Client.Config;
using Client.Config.SubModels;
using CMS_Client.View;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using static Client.Utils.Constants;

namespace CMS_Client.Browser_Tools
{
    public class BrowserJSObject : JSObject
    {
        //The first letter of All PUBLIC Variables and Methods must be Lower-Case (CEF Settings)

        private MainForm mainForm;
        
        ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
        #region CONSTRUCTOR_METHOD
        //Constructor Method
        public BrowserJSObject(MainForm f)
        {
            mainForm = f;

            AddFunction("minimizeForm").Execute += minimizeForm;
            AddFunction("maximizeForm").Execute += maximizeForm;
            AddFunction("closeForm").Execute    += closeForm;
            AddFunction("forceStepFocus").Execute += forceStepFocus;

            AddFunction("setNcWindowState").Execute += setNcWindowState;
            AddFunction("getNcWindowState").Execute += getNcWindowState;
            AddFunction("getScreenBase64").Execute += getScreenBase64;
            AddFunction("getChromiumVersion").Execute += getChromiumVersion;
            AddFunction("getClientID").Execute += getClientID;
            AddFunction("getConfiguredProcesses").Execute += getConfiguredProcesses;
            AddFunction("startNewProcess").Execute += startNewProcess;
            AddFunction("openOrStartProcess").Execute += openOrStartProcess;

        }

        #endregion

        ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
        #region FORM_BEHAVIOUR_METHODS

        //Minimize Main Window
        public void minimizeForm(object sender, CfrV8HandlerExecuteEventArgs e)
        {
            //Invoke method if is needed or call the method in STD mode
            if (mainForm.InvokeRequired)
                mainForm.Invoke((MethodInvoker)delegate () {
                    mainForm.WindowState = FormWindowState.Minimized;
                });

            else
            {
                mainForm.WindowState = FormWindowState.Minimized;
            }
        }



        //Maximize Main Window
        public void maximizeForm(object sender, CfrV8HandlerExecuteEventArgs e)
        {
            //Invoke method if is needed or call the method in STD mode
            if (mainForm.InvokeRequired)
                mainForm.Invoke((MethodInvoker)delegate () {
                    mainForm.WindowState = FormWindowState.Maximized;
                });

            else
            {
                mainForm.WindowState = FormWindowState.Maximized;
            }
        }



        //Close Main Window
        public void closeForm(object sender, CfrV8HandlerExecuteEventArgs e)
        {
            //If the mainform is disposed do nothing
            if (mainForm.IsDisposed)
                return;

            //Invoke method if is needed or call the method in STD mode
            mainForm.Close();
        }

        #endregion

        ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
        #region NC_BEHAVIOUR_METHODS
                    
        public void setNcWindowState(object sender, CfrV8HandlerExecuteEventArgs e)
        {
            if (e.Arguments.Count() == 0)
                return;

            NcWindow.SetState((NcState) e.Arguments[0].IntValue );

            if (NcWindow.State == NcState.SHOW)
                mainForm.ShowNCWindow();
            else
                mainForm.HideNCWindow();
        }

        public void getNcWindowState(object sender, CfrV8HandlerExecuteEventArgs e)
        {         
            e.SetReturnValue((int) NcWindow.State);
        }

        public void getScreenBase64(object sender, CfrV8HandlerExecuteEventArgs e)
        {
            if (e.Arguments.Count() > 0 && e.Arguments[0].BoolValue)
                NcWindow.CaptureHMI();            
            e.SetReturnValue(NcWindow.NcCapture);
        }
        
        #endregion

        ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
        #region CHROMIUM_METHODS

        //Get the Version of Chromium
        public void getChromiumVersion(object sender, CfrV8HandlerExecuteEventArgs e)
        {
            e.SetReturnValue(CfxRuntime.GetChromeVersion());
        }

        #endregion

        ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
        #region STEP_METHODS

        //Get the ID of STEP Client
        public void getClientID(object sender, CfrV8HandlerExecuteEventArgs e)
        {
            e.SetReturnValue((int) Config.ConnectionConfig.Id);
        }

        public void forceStepFocus(object sender, CfrV8HandlerExecuteEventArgs e)
        {
            NcWindow.ForceStepFocus();
        }

        #endregion

        ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
        #region PROCESSES_METHODS

        //Read all configured processes
        public void getConfiguredProcesses(object sender, CfrV8HandlerExecuteEventArgs e)
        {
            e.SetReturnValue(JsonConvert.SerializeObject(Config.ExtSoftwaresConfig));
        }



        //Start a new process
        public void startNewProcess(object sender, CfrV8HandlerExecuteEventArgs e)
        {
            if (e.Arguments.Count() == 0)
                return;
            String id = e.Arguments[0].StringValue;

            Software sft = Config.ExtSoftwaresConfig.FirstOrDefault(X => X.Id == id);

            if (sft != null)
            {
                Process.Start(sft.Path, sft.Arguments);
            }
        }



        //Open the last window or Start a new process
        public void openOrStartProcess(object sender, CfrV8HandlerExecuteEventArgs e)
        {
            if (e.Arguments.Count() == 0)
                return;
            String id = e.Arguments[0].StringValue;

            Software sft = Config.ExtSoftwaresConfig.FirstOrDefault(X => X.Id == id);

            if (sft != null)
            {
                Process[] p = Process.GetProcessesByName(Path.GetFileNameWithoutExtension(sft.Path)).OrderByDescending(X => X.StartTime).ToArray();

                if (p.Count() > 0 && p[0].MainWindowHandle != IntPtr.Zero)
                    NcWindow.ForceExtFocus(p[0].MainWindowHandle);
                else
                    Process.Start(sft.Path, sft.Arguments);
            }
        }  
        #endregion

    }
}