sharp-chat/SharpChat.Protocol.IRC/ClientCommands/JoinCommand.cs

74 lines
2.9 KiB
C#

using SharpChat.Channels;
using SharpChat.Protocol.IRC.Channels;
using SharpChat.Protocol.IRC.Replies;
using System;
using System.Linq;
namespace SharpChat.Protocol.IRC.ClientCommands {
public class JoinCommand : IClientCommand {
public const string NAME = @"JOIN";
public string CommandName => NAME;
public bool RequireSession => true;
private ChannelManager Channels { get; }
private ChannelUserRelations ChannelUsers { get; }
public JoinCommand(ChannelManager channels, ChannelUserRelations channelUsers) {
Channels = channels ?? throw new ArgumentNullException(nameof(channels));
ChannelUsers = channelUsers ?? throw new ArgumentNullException(nameof(channelUsers));
}
public void HandleCommand(ClientCommandContext ctx) {
string firstArg = ctx.Arguments.ElementAtOrDefault(0) ?? string.Empty;
if(firstArg == @"0") { // of course you would leave all channels with the JOIN command
ChannelUsers.LeaveChannels(ctx.Session);
return;
}
string[] names = firstArg.Split(',');
string[] passwords = (ctx.Arguments.ElementAtOrDefault(1) ?? string.Empty).Split(',');
for(int i = 0; i < names.Length; ++i) {
string name = names[i];
Channels.GetChannel(c => name.Equals(c.GetIRCName()), channel => {
if(channel == null) { // todo: check permissions and allow channel creation
ctx.Connection.SendReply(new BadChannelMaskReply(name));
return;
}
ChannelUsers.HasSession(channel, ctx.Session, hasSession => {
// just continue if we're already in the channel
if(hasSession)
return;
// introduce channel bans at some point
// introduce invites at some point
// add rank check
ChannelUsers.CheckOverCapacity(channel, ctx.User, isOverCapacity => {
if(isOverCapacity) {
ctx.Connection.SendReply(new ChannelIsFullReply(channel));
return;
}
string password = passwords.ElementAtOrDefault(i) ?? string.Empty;
Channels.VerifyPassword(channel, password, success => {
if(!success) {
ctx.Connection.SendReply(new BadChannelKeyReply(channel));
return;
}
ChannelUsers.JoinChannel(channel, ctx.Session);
});
});
});
});
}
}
}
}