// https://discord.com/developers/docs/reference#message-formatting
private object ParseReference(Type expectedType, string reference)
{
string value = reference.Substring(1, reference.Length - 2);
// Get the object's ID (always last thing in the sequence)
MatchCollection matches = Regex.Matches(value, @"\d{18,}");
if (matches.Count > 0)
{
Match match = matches[matches.Count - 1];
if (match.Index + match.Length == value.Length)
{
ulong anyId = ulong.Parse(match.Value);
string forSpecific = value.Substring(0, match.Index);
if (expectedType.IsAssignableFrom(typeof(MinimalChannel)))
{
if (forSpecific == "#")
{
if (expectedType.IsAssignableFrom(typeof(DiscordChannel)))
{
if (_client.Config.Cache)
{
return(_client.GetChannel(anyId));
}
else
{
throw new InvalidOperationException("Caching must be enabled to parse DiscordChannels");
}
}
else
{
return(new MinimalTextChannel(anyId).SetClient(_client));
}
}
else
{
throw new ArgumentException("Invalid reference type");
}
}
else if (expectedType == typeof(DiscordRole))
{
if (forSpecific.StartsWith("@&"))
{
if (_client.Config.Cache)
{
return(_client.GetGuildRole(anyId));
}
else
{
throw new InvalidOperationException("Caching must be enabled to parse DiscordChannels");
}
}
else
{
throw new ArgumentException("Invalid reference type");
}
}
else if (expectedType.IsAssignableFrom(typeof(PartialEmoji)))
{
if (Regex.IsMatch(forSpecific, @"a?:\w+:"))
{
string[] split = forSpecific.Split(':');
bool animated = split[0] == "a";
string name = split[1];
if (expectedType == typeof(DiscordEmoji))
{
if (_client.Config.Cache)
{
return(_client.GetGuildEmoji(anyId));
}
else
{
throw new InvalidOperationException("Caching must be enabled to parase DiscordEmojis");
}
}
else
{
return(new PartialEmoji(anyId, name, animated).SetClient(_client));
}
}
else
{
throw new ArgumentException("Invalid reference type");
}
}
else
{
return(anyId);
}
}
}
throw new ArgumentException("Invalid reference");
}