package arguments import ( "errors" "regexp" "github.com/diamondburned/arikawa/api/rate" "github.com/diamondburned/arikawa/discord" ) var ( EmojiRegex = regexp.MustCompile(`<(a?):(.+?):(\d+)>`) ErrInvalidEmoji = errors.New("Invalid emoji") ) type Emoji struct { ID discord.Snowflake Name string Custom bool Animated bool } func (e Emoji) APIString() string { if !e.Custom { return e.Name } return e.Name + ":" + e.ID.String() } func (e Emoji) String() string { if !e.Custom { return e.Name } if e.Animated { return "" } else { return "<:" + e.Name + ":" + e.ID.String() + ">" } } func (e Emoji) URL() string { if !e.Custom { return "" } base := "https://cdn.discordapp.com/emojis/" + e.ID.String() if e.Animated { return base + ".gif" } else { return base + ".png" } } func (e *Emoji) Usage() string { return "emoji" } func (e *Emoji) Parse(arg string) error { // Check if Unicode emoji if rate.StringIsEmojiOnly(arg) { e.Name = arg e.Custom = false return nil } var matches = EmojiRegex.FindStringSubmatch(arg) if len(matches) != 4 { return ErrInvalidEmoji } id, err := discord.ParseSnowflake(matches[3]) if err != nil { return err } e.Custom = true e.Animated = matches[1] == "a" e.Name = matches[2] e.ID = id return nil }