using Discord.Commands;
using NadekoBot.Common.Attributes;
using NadekoBot.Core.Modules.Administration.Services;
using NadekoBot.Extensions;
using System;
using System.IO;
using System.Reflection;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace NadekoBot.Modules.Administration
{
    public partial class Administration
    {
        [Group]
        public class PackagesCommands : NadekoSubmodule<PackagesService>
        {
            private readonly NadekoBot _bot;

            public PackagesCommands(NadekoBot bot)
            {
                _bot = bot;
            }

            [NadekoCommand, Usage, Description, Aliases]
            [RequireContext(ContextType.Guild)]
            public async Task PackageList()
            {
                _service.ReloadAvailablePackages();
                await Context.Channel.SendConfirmAsync(string.Join("\n", _service.Packages));
            }

            [NadekoCommand, Usage, Description, Aliases]
            [RequireContext(ContextType.Guild)]
            [OwnerOnly]
            public async Task PackageUnload(string name)
            {
                if (name.Contains(":") || name.Contains(".") || name.Contains("\\") || name.Contains("/") || name.Contains("~"))
                    return;
                name = name.ToTitleCase();
                var package = Assembly.LoadFrom(Path.Combine(AppContext.BaseDirectory,
                                                "modules",
                                                $"NadekoBot.Modules.{name}",
                                                $"NadekoBot.Modules.{name}.dll"));
                
                await _bot.UnloadPackage(name).ConfigureAwait(false);
                await ReplyAsync(":ok:");
            }

            [NadekoCommand, Usage, Description, Aliases]
            [RequireContext(ContextType.Guild)]
            [OwnerOnly]
            public async Task PackageLoad(string name)
            {
                if (name.Contains(".") || name.Contains("\\") || name.Contains("/") || name.Contains("~"))
                    return;
                name = name.ToTitleCase();

                if (await _bot.LoadPackage(name))
                    await ReplyAsync(":ok:");
                else
                    await ReplyAsync(":x:");
            }

            [NadekoCommand, Usage, Description, Aliases]
            [RequireContext(ContextType.Guild)]
            [OwnerOnly]
            public async Task PackageReload(string name)
            {
                if (name.Contains(".") || name.Contains("\\") || name.Contains("/") || name.Contains("~"))
                    return;
                name = name.ToTitleCase();

                if (await _bot.UnloadPackage(name))
                {
                    await _bot.LoadPackage(name);
                    await ReplyAsync(":ok:");
                }
                else
                    await ReplyAsync(":x:");
            }
        }
    }
}