Decline.cs

using System.Text.RegularExpressions;
using System.Threading.Tasks;
 
namespace Waher.Service.IoTBroker.Admin.Subscriptions
{
    public class Decline : CommandRegEx
    {
        public Decline()
            : base(@"^decline(\s+(?'JID'[^\s]+))?$")
        {
        }
 
        public override string Name => "Decline";
 
        public override async Task Execute(ChatState State, string[] Arguments, string OrgMessage, Match Details,
            ResponseCallbackHandler ResponseCallback)
        {
            int c = Arguments.Length;
 
            if (c == 0)
            {
                Networking.XMPP.Events.PresenceEventArgs[] Requests = IoTGateway.Gateway.XmppClient.SubscriptionRequests;
 
                if (Requests.Length == 0)
                    await ResponseCallback("No subscription requests pending.", string.Empty);
                else
                {
                    foreach (Networking.XMPP.Events.PresenceEventArgs e in Requests)
                    {
                        await e.Decline();
                        await ResponseCallback("Subscription request from `" + e.FromBareJID + "` declined.", string.Empty);
                    }
                }
            }
            else
            {
                string JID = Arguments[0];
 
                Networking.XMPP.Events.PresenceEventArgs e = IoTGateway.Gateway.XmppClient.GetSubscriptionRequest(JID);
 
                if (e is null)
                    await XmppServerModule.SendErrorMessage("No pending subscription request found from `" + JID + "`.", string.Empty, ResponseCallback);
                else
                {
                    await e.Decline();
                    await ResponseCallback("Subscription request from `" + JID + "` declined.", string.Empty);
                }
            }
        }
 
        public override HelpItem[] GetHelp()
        {
            return new HelpItem[]
            {
                new HelpItem("accept", "Accepts all pending subscription requests, or a specific subscription request."),
                new HelpItem("accept JID", "Accepts a specific subscription request from `JID`.")
            };
        }
    }
}