/// <summary>
/// Parses a Twitch Chat TMI message, from the raw IRC message.
/// </summary>
/// <param name="raw">The raw IRC messages, as received on the wire.</param>
/// <returns>Parsed message data, either as an instance of TmiMessage, or a more specific model subtype if appropriate.</returns>
public static TmiMessage Parse(string raw)
{
/**
* // On room join, we get a USERSTATE message for ourselves:
*
* @badge-info=;badges=;color=;display-name=Toxmeter;emote-sets=0;mod=0;subscriber=0;user-type= :tmi.twitch.tv USERSTATE #kinamazing
* @badge-info=;badges=;color=;display-name=Toxmeter;emote-sets=0;mod=0;subscriber=0;user-type= :tmi.twitch.tv USERSTATE #vader
*
* // On room join, we also get a ROOMSTATE message:
*
* @emote-only=0;followers-only=0;r9k=0;rituals=0;room-id=90091619;slow=0;subs-only=0 :tmi.twitch.tv ROOMSTATE #kinamazing
* @emote-only=0;followers-only=10;r9k=0;rituals=0;room-id=69759951;slow=0;subs-only=0 :tmi.twitch.tv ROOMSTATE #vader
*
* // Regular messages are also prefixed with their full USERSTATE:
*
* @badge-info=subscriber/3;badges=subscriber/3;color=#1959B3;display-name=Crtka;emote-only=1;emotes=9:0-1;flags=;id=d4d8826d-0ac0-4966-b58a-830353b3a56a;mod=0;room-id=90091619;subscriber=1;tmi-sent-ts=1560102937011;turbo=0;user-id=180341394;user-type= :[email protected] PRIVMSG #kinamazing :<3
*
* // The IRC library does not understand this, so:
*
* e.Message.Command == The full @badge-info[...] block
* e.Message.Parameters[0] == The IRC user identifier e.g. ":[email protected]"
* e.Message.Parameters[1] == command "PRIVMSG"
* e.Message.Parameters[2] == channel "#kinamazing"
* e.Message.Parameters[3] == just the basic plain old message no markers "<3"
*
* // What a WHISPER looks like:
*
* @badges=twitchcon2018/1;color=#FF69B4;display-name=AFluHatinRapper;emotes=;message-id=19;thread-id=63469880_248897310;turbo=0;user-id=63469880;user-type= :[email protected] WHISPER toxmeter :test 123
*/
var reader = new TmiIrcReader(raw);
// Step 1: Read the state prefix, @-prefixed properties
var stateProperties = new Dictionary <string, string>();
var hasStatePrefix = raw.StartsWith("@");
if (hasStatePrefix)
{
var stateReader = reader.ReadNextUntil(' ');
stateReader.Skip(1); // @
do
{
var nextPropKv = stateReader.ReadNextUntil(';', true);
if (nextPropKv.IsNullOrEmpty)
{
break;
}
var key = nextPropKv.ReadNextUntil('=');
var value = nextPropKv.ReadRemainder();
stateProperties[key] = value;
}while (true);
}
// Step 2: Read server name, channel name, and command name
string serverName = reader.ReadNextUntil(' ');
string commandName = reader.ReadNextUntil(' ');
string channelName = null;
string message = null;
bool isWhisper = false;
switch (commandName)
{
case "GLOBALUSERSTATE":
// No message, no channel
break;
case "ROOMSTATE":
case "USERSTATE":
// No message, but has channel
channelName = reader.ReadRemainder();
break;
case "PRIVMSG":
default:
// Has both message and channel
channelName = reader.ReadNextUntil(' ');
message = reader.ReadRemainder();
break;
case "WHISPER":
// In case of whispers, the channel is your own username w/o # prefix
isWhisper = true;
channelName = reader.ReadNextUntil(' ');
message = reader.ReadRemainder();
break;
}
// Step 3: Clean up
if (channelName != null && channelName.Length > 1 && !isWhisper)
{
channelName = channelName.ToString().Substring(1); // Skip "#"
}
if (serverName != null && serverName.Length > 1)
{
serverName = serverName.ToString().Substring(1); // Skip ":"
}
if (message != null && message.Length > 1)
{
message = message.ToString().Substring(1); // Skip ":"
}
// Step 4: Factory
TmiMessage result;
if (commandName == "PRIVMSG" || commandName == "WHISPER")
{
result = new TmiChatMessage();
}
else
{
result = new TmiMessage();
}
result.ChannelName = channelName;
result.CommandName = commandName;
result.Message = message;
result.ServerName = serverName;
result.StateProperties = stateProperties;
result.IsPrivateWhisper = isWhisper;
return(result);
}
public TmiChatMessageEventArgs(TmiChatMessage message)
{
this.Message = message;
}
