67 lines
2.4 KiB
C#
67 lines
2.4 KiB
C#
using SharpChat.Channels;
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using SharpChat.Messages;
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using SharpChat.Protocol.IRC.Channels;
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using SharpChat.Protocol.IRC.Replies;
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using System;
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using System.Linq;
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namespace SharpChat.Protocol.IRC.ClientCommands {
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public class PrivateMessageCommand : IClientCommand {
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public const string NAME = @"PRIVMSG";
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public string CommandName => NAME;
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public bool RequireSession => true;
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private ChannelManager Channels { get; }
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private ChannelUserRelations ChannelUsers { get; }
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private MessageManager Messages { get; }
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public PrivateMessageCommand(ChannelManager channels, ChannelUserRelations channelUsers, MessageManager messages) {
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Channels = channels ?? throw new ArgumentNullException(nameof(channels));
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ChannelUsers = channelUsers ?? throw new ArgumentNullException(nameof(channelUsers));
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Messages = messages ?? throw new ArgumentNullException(nameof(messages));
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}
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public void HandleCommand(ClientCommandContext ctx) {
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string channelName = ctx.Arguments.ElementAtOrDefault(0);
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if(string.IsNullOrWhiteSpace(channelName)) {
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ctx.Connection.SendReply(new NoRecipientReply(NAME));
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return;
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}
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string text = ctx.Arguments.ElementAtOrDefault(1);
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if(string.IsNullOrWhiteSpace(text)) {
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ctx.Connection.SendReply(new NoTextToSendReply());
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return;
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}
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Func<IChannel, bool> predicate = null;
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char channelPrefix = channelName.First();
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if(channelPrefix == '#')
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predicate = new Func<IChannel, bool>(c => channelName.Equals(c.GetIRCName()));
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if(predicate == null) {
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ctx.Connection.SendReply(new NoSuchNickReply(channelName));
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return;
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}
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Channels.GetChannel(predicate, channel => {
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if(channel == null) {
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ctx.Connection.SendReply(new NoSuchNickReply(channelName));
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return;
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}
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ChannelUsers.HasUser(channel, ctx.User, hasUser => {
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if(!hasUser) {
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ctx.Connection.SendReply(new CannotSendToChannelReply(channel));
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return;
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}
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Messages.Create(ctx.Session, channel, text);
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});
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});
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}
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}
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}
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