using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.MachineStudio.Common.Publish;

namespace Tango.MachineStudio.Publisher.CLI
{
    class Program
    {
        private static bool single = false;

        static void Main(string[] args)
        {
            PublisherOptions options = new PublisherOptions();

            try
            {
                if (!PublisherOptions.Parse(options, args))
                {
                    Console.WriteLine(options.GetUsage());
                    PauseIfDebug();
                    return;
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                PauseIfDebug();
            }

            if (options.InfoOptions != null)
            {
                MachineStudioPublisher p = new MachineStudioPublisher();
                String ver = p.GetRemoteVersion(options.InfoOptions.Environment).Result;
                Console.WriteLine($"Remote Version on {options.InfoOptions.Environment.ToDescription()}: {ver}");
                PauseIfDebug();
                return;
            }

            if (options.PublishOptions == null)
            {
                Console.WriteLine("No command specified.");
                Environment.Exit(-1);
                return;
            }

            MachineStudioPublisher publisher = new MachineStudioPublisher(options.PublishOptions);

            publisher.PublishProgress += Publisher_PublishProgress;

            try
            {
                publisher.Publish().Wait();
            }
            catch (Exception ex)
            {
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine(ex.FlattenMessage());
                PauseIfDebug();
                Environment.Exit(-1);
            }

            PauseIfDebug();
        }

        private static void Publisher_PublishProgress(object sender, PublishProgressEventArgs e)
        {
            if (e.SingleLineRecommended)
            {
                ClearCurrentConsoleLine();
                Console.Write(e.Message + "                               ");
                single = true;
            }
            else
            {
                if (single)
                {
                    Console.WriteLine();
                    single = false;
                }

                Console.WriteLine(e.Message);
            }
        }

        public static void ClearCurrentConsoleLine()
        {
            int currentLineCursor = Console.CursorTop;
            Console.SetCursorPosition(0, Console.CursorTop);
        }

        private static void PauseIfDebug()
        {
            if (System.Diagnostics.Debugger.IsAttached) Console.ReadLine();
        }
    }
}