using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using RageCoop.Core.Scripting;
using System.IO;
using ICSharpCode.SharpZipLib.Zip;
using System.Reflection;
namespace RageCoop.Server.Scripting
{
	internal class Resources : ResourceLoader
	{
		private readonly Server Server;
		public Resources(Server server) : base("RageCoop.Server.Scripting.ServerScript", server.Logger)
		{
			Server = server;
		}
		private List<string> ClientResourceZips=new List<string>();
		public bool HasClientResources { get; private set; }
		public void LoadAll()
		{
            #region CLIENT
            var path = Path.Combine("Resources", "Client");
			var tmp = Path.Combine("Resources", "ClientTemp");
			Directory.CreateDirectory(path);
			if (Directory.Exists(tmp))
            {
				foreach(var dir in Directory.GetDirectories(tmp))
                {
					Directory.Delete(dir, true);
                }
            }
            else
            {
				Directory.CreateDirectory(tmp);
            }
			var resourceFolders = Directory.GetDirectories(path,"*",SearchOption.TopDirectoryOnly);
			if (resourceFolders.Length!=0)
			{
				HasClientResources=true;
				foreach (var resourceFolder in resourceFolders)
                {
					// Pack client side resource as a zip file
					Logger?.Info("Packing client-side resource:"+resourceFolder);
					var zipPath = Path.Combine(tmp, Path.GetFileName(resourceFolder));
					try
					{
						using (ZipFile zip = ZipFile.Create(zipPath))
						{
							foreach (var dir in Directory.GetDirectories(resourceFolder, "*", SearchOption.AllDirectories))
							{
								zip.AddDirectory(dir.Substring(resourceFolder.Length+1));
							}
							foreach (var file in Directory.GetFiles(resourceFolder, "*", SearchOption.AllDirectories))
                            {
								zip.Add(file,file.Substring(resourceFolder.Length+1));
                            }
							zip.Close();
							ClientResourceZips.Add(zipPath);
						}
					}
					catch (Exception ex)
					{
						Logger?.Error($"Failed to pack client resource:{resourceFolder}");
						Logger?.Error(ex);
					}
				}
			}
			var packed = Directory.GetFiles(path, "*.zip", SearchOption.TopDirectoryOnly);
            if (packed.Length>0)
            {
				HasClientResources =true;
				ClientResourceZips.AddRange(packed);
			}
			#endregion

			#region SERVER
			path = Path.Combine("Resources", "Server");
			var dataFolder = Path.Combine(path, "data");
			Directory.CreateDirectory(path);
			foreach (var resource in Directory.GetDirectories(path))
			{
                if (Path.GetFileName(resource).ToLower()=="data") { continue; }
				Logger?.Info($"Loading resource: {Path.GetFileName(resource)}");
				LoadResource(resource,dataFolder);
			}
			foreach(var resource in Directory.GetFiles(path, "*.zip", SearchOption.TopDirectoryOnly))
            {
				Logger?.Info($"Loading resource: {Path.GetFileName(resource)}");
				LoadResource(new ZipFile(resource), dataFolder);
            }

			// Start scripts
            lock (LoadedResources)
            {
				foreach (var r in LoadedResources)
				{
					foreach (ServerScript s in r.Scripts)
					{
						s.API=Server.API;
                        try
						{
							Logger?.Debug("Starting script:"+s.CurrentFile.Name);
							s.OnStart();
						}
						catch(Exception ex) {Logger?.Error($"Failed to start resource: {r.Name}"); Logger?.Error(ex); }
					}
				}
			}
            #endregion
        }

        public void StopAll()
		{
			lock (LoadedResources)
			{
				foreach (var d in LoadedResources)
				{
					foreach (var s in d.Scripts)
					{
                        try
                        {

							s.OnStop();
						}
						catch(Exception ex)
                        {
							Logger?.Error(ex);
                        }
					}
				}
			}
		}
		public void SendTo(Client client)
		{

			string path;
			if (HasClientResources && File.Exists(path = Path.Combine("Resources", "Client", "Resources.zip")))
			{
				Task.Run(() =>
				{
					Logger?.Info($"Sending resources to client:{client.Username}");
					Server.SendFile(path, "Resources.zip", client);
					Logger?.Info($"Resources sent to:{client.Username}");

				});
			}
            else
            {
				client.IsReady=true;
            }
		}
	}
}