using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Controls;
using SAPFEWSELib;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Windows.UI.Core;
using Microsoft.UI;
using Microsoft.UI.Windowing;
using System.Diagnostics;


namespace SAPRecorderApp;


public class SapGui
{
    public GuiApplication Application { get; set; }
    public GuiConnection Connection { get; set; }
    public GuiSession Session { get; set; }
    public TextBox textBox { get; set; }

    public SapGui()
    {
        SapROTWr.CSapROTWrapper sapROTWrapper = new SapROTWr.CSapROTWrapper();

        object SapGuilRot = sapROTWrapper.GetROTEntry("SAPGUI");
        if (SapGuilRot != null)
        {
            object engine = SapGuilRot.GetType().InvokeMember("GetScriptingEngine", System.Reflection.BindingFlags.InvokeMethod, null, SapGuilRot, null);
            Application = (GuiApplication)engine;
            Connection = (GuiConnection)Application.Connections.ElementAt(0);
            Session = (GuiSession)Connection.Sessions.ElementAt(0);
        }


    }

    public void login(string desc, string username, string password)
    {
        Application.OpenConnection(desc);
        Connection = (GuiConnection)Application.Connections.ElementAt(0);
        Session = (GuiSession)Connection.Sessions.ElementAt(0);
        GuiFrameWindow frame = (GuiFrameWindow)Session.FindById("wnd[0]");
        frame.Maximize();
        GuiTextField usernameTextField = (GuiTextField)Session.FindById("wnd[0]/usr/txtRSYST-BNAME");
        usernameTextField.Text = username;
        GuiTextField passwordTextField = (GuiTextField)Session.FindById("wnd[0]/usr/pwdRSYST-BCODE");
        passwordTextField.Text = password;
        frame.SendVKey(0);
    }


    public void BeginRecord()
    {
        Session.Change += Session_Change;
    }

    private void SetTextBox(string text)
    {
        textBox.Text = text;
    }

    private void Session_Change(GuiSession Session, GuiComponent Component, object CommandArray)
    {
        object[] objs = CommandArray as object[];
        objs = objs[0] as object[];
        var Action = "SetProperty";
        switch (objs[0].ToString().ToLower())
        {
            case "m":
                Action = "InvokeMethod";
                break;
            case "sp":
                Action = "SetProperty";
                break;
        }
        var ActionName = objs[1].ToString();

        string id = Component.Id;
        var pathToRoot = new List<GuiComponent>();
        GuiComponent element = Component;
        while (element != null)
        {
            // Program.log(element.Id);
            if (element is GuiSession)
            {
                id = id.Substring(element.Id.Length + 1);
            }
            pathToRoot.Add(element);
            element = element.Parent as GuiComponent;
        }

        var prefix = $"sap.session.findByid({id})";
        if (Action == "InvokeMethod")
        {
            prefix += $".{ActionName}(";
            var parameters = new List<string>();

            if (objs.Length >= 3)
            {
                var array = objs[2] as object[];

                if (array != null)
                {
                    foreach (var item in array)
                    {
                        Console.WriteLine(item.ToString());
                        parameters.Add(item.ToString());
                    }
                    prefix += string.Join(",", parameters);
                }
            }

            prefix += ")";
        }
        else if (Action == "SetProperty")
        {
            prefix += $".{ActionName} = \"{objs[2].ToString()}\"";
        }
        Console.WriteLine(prefix);

        Globals.recordTextQueue.Add(prefix);
        //SetTextBox(prefix + "\n");
    }
}