CommandFactory.cs

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using System;
using System.Collections.Generic;
using Tgstation.Server.Host.Components.Byond;
using Tgstation.Server.Host.Components.Repository;
using Tgstation.Server.Host.Components.Watchdog;
using Tgstation.Server.Host.Core;

namespace Tgstation.Server.Host.Components.Chat.Commands
{
    sealed class CommandFactory : ICommandFactory
    {
        readonly IApplication application;

        readonly IByondManager byondManager;

        readonly IRepositoryManager repositoryManager;

        readonly IDatabaseContextFactory databaseContextFactory;

        readonly Models.Instance instance;

        IWatchdog watchdog;

        public CommandFactory(IApplication application, IByondManager byondManager, IRepositoryManager repositoryManager, IDatabaseContextFactory databaseContextFactory, Models.Instance instance)
        {
            this.application = application ?? throw new ArgumentNullException(nameof(application));
            this.byondManager = byondManager ?? throw new ArgumentNullException(nameof(byondManager));
            this.repositoryManager = repositoryManager ?? throw new ArgumentNullException(nameof(repositoryManager));
            this.databaseContextFactory = databaseContextFactory ?? throw new ArgumentNullException(nameof(databaseContextFactory));
            this.instance = instance ?? throw new ArgumentNullException(nameof(instance));
        }

        public void SetWatchdog(IWatchdog watchdog)
        {
            if (this.watchdog != null)
                throw new InvalidOperationException("SetWatchdog has already been called!");
            this.watchdog = watchdog ?? throw new ArgumentNullException(nameof(watchdog));
        }

        public IReadOnlyList<ICommand> GenerateCommands()
        {
            if (watchdog == null)
                throw new InvalidOperationException("SetWatchdog has not been called!");
            return new List<ICommand>
            {
                new VersionCommand(application),
                new ByondCommand(byondManager, watchdog),
                new RevisionCommand(watchdog, repositoryManager, instance),
                new PullRequestsCommand(watchdog, repositoryManager, databaseContextFactory, instance),
                new KekCommand()
            };
        }
    }
}