using System;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using System.Windows.Forms;
using TeamDev.SDK.MVVM;
using Thermo.Active.Model;
using static Thermo.Active.Model.Constants;
using static Thermo.Active.Utils.ThermoActiveLogger;

namespace Thermo.Active.Utils
{
    public static class ExceptionManager
    {
        public static void ManageException(ERROR_LEVEL errorLevel, Exception exception)
        {
            string message = exception.Message;
            if (exception.InnerException != null)
            {
                // Add inner exception message (if exists)
                message += " | " + exception.InnerException.Message;
            }

            // Add method name
            message += " | " + GetExceptionMethodName(exception);

            ManageError(errorLevel, message);
        }

        private static bool MessageBoxShow = false;

        public static void ManageError(ERROR_LEVEL errorLevel, string message, bool beforeFormReady = false)
        {
            switch (errorLevel)
            {
                case ERROR_LEVEL.INFO:
                    {
                        // Log 
                        LogInfo(message);
                        // Notify users
                        NotifyUsers(CreateMessageModel("Info!", message, ERROR_LEVEL.INFO));
                    }
                    break;
                case ERROR_LEVEL.WARNING:
                    {
                        LogWarning(message);
                        NotifyUsers(CreateMessageModel("Warning!", message, ERROR_LEVEL.WARNING));
                    }
                    break;
                case ERROR_LEVEL.ERROR:
                    {
                        LogError(message);
                        NotifyUsersAndClose(CreateMessageModel("Error!", message, ERROR_LEVEL.ERROR));
                    }
                    break;
                case ERROR_LEVEL.FATAL:
                    {
                        LogFatal(message);
                        if (!MessageBoxShow)
                        {
                            MessageBoxShow = true;
                            NotifyUsersAndClose(CreateMessageModel("Fatal Error!", message, ERROR_LEVEL.FATAL), beforeFormReady);
                            // Check if the server form is ready (if not i have to close manually)
                            if (beforeFormReady)
                                // Close the application
                                Environment.Exit(1);
                        }
                    }
                    break;
                default:
                    {
                        LogFatal(message);
                        if (!MessageBoxShow)
                        {
                            MessageBoxShow = true;
                            NotifyUsersAndClose(CreateMessageModel("Generic Error!", message, ERROR_LEVEL.FATAL), beforeFormReady);
                        }
                    }
                    break;
            }
        }

        private static void LogAndNotifyUsers(ErrorMessageModel error)
        {
            // Log
            LogMessage(error.Message, (ERROR_LEVEL)error.ErrorLevel);
            NotifyUsersAndClose(error);
        }

        private static void NotifyUsers(ErrorMessageModel error, bool beforeFormReady = false)
        {
            if (beforeFormReady)
            {
                MessageBox.Show(new Form { TopMost = true }, error.Message, error.Title, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            else
            {
                MessageServices.Current.Publish(SEND_MESSAGE, null, error);
            }
        }

        private static void NotifyUsersAndClose(ErrorMessageModel error, bool beforeFormReady = false)
        {
            if (beforeFormReady)
            {
                // Notify user
                MessageServices.Current.Publish(SEND_STOP_THREADS);
                MessageBox.Show(new Form { TopMost = true }, error.Message, error.Title, MessageBoxButtons.OK, MessageBoxIcon.Error);
                MessageServices.Current.Publish(SEND_STOP_SERVER);
            }
            else
            {
                // Notify user
                //MessageServices.Current.Publish(SEND_STOP_THREADS);
                MessageServices.Current.Publish(SEND_MESSAGE, null, error);
            }
        }

        private static ErrorMessageModel CreateMessageModel(string title, string message, ERROR_LEVEL level, string methodName = "")
        {
            if (methodName != "")
                message = message + " | " + methodName;

            return new ErrorMessageModel()
            {
                Title = title,
                Message = message,
                ErrorLevel = level
            };
        }

        public static string GetExceptionMethodName(Exception ex)
        {
            var s = new StackTrace(ex, true);
            var thisasm = Assembly.GetExecutingAssembly();

            Console.WriteLine(s.GetFrames().Count());
            foreach (var a in s.GetFrames())
            {
                var d = a.GetMethod();
                Console.WriteLine(d.Name);
            }

            return s.GetFrames().FirstOrDefault()?.GetMethod().Name;
        }

    }
}