meme/bot: add ephemeral messages

bot/interfaces.go

@@ -15,6 +15,8 @@ const (
 
 	// Message any standard chat
 	Message
+	// Send a disappearing message to a user in chat
+	Ephemeral
 	// Reply something containing a message reference
 	Reply
 	// Action any /me action
@@ -33,6 +35,8 @@ const (
 	Delete
 )
 
+type EphemeralID string
+
 type ImageAttachment struct {
 	URL    string
 	AltTxt string

connectors/discord/discord.go

@@ -42,6 +42,8 @@ func (d *Discord) RegisterEvent(callback bot.Callback) {
 func (d Discord) Send(kind bot.Kind, args ...interface{}) (string, error) {
 
 	switch kind {
+	case bot.Ephemeral:
+		return d.sendMessage(args[0].(string), args[2].(string), false, args...)
 	case bot.Message:
 		return d.sendMessage(args[0].(string), args[1].(string), false, args...)
 	case bot.Action:

connectors/slackapp/slackApp.go

@@ -234,6 +234,9 @@ func (s *SlackApp) Send(kind bot.Kind, args ...interface{}) (string, error) {
 	switch kind {
 	case bot.Message:
 		return s.sendMessage(args[0].(string), args[1].(string), false, args...)
+	case bot.Ephemeral:
+		args[1] = bot.EphemeralID(args[1].(string))
+		return s.sendMessage(args[0].(string), args[2].(string), false, args...)
 	case bot.Action:
 		return s.sendMessage(args[0].(string), args[1].(string), true, args...)
 	case bot.Edit:
@@ -271,6 +274,8 @@ func (s *SlackApp) sendMessage(channel, message string, meMessage bool, args ...
 	if len(args) > 0 {
 		for _, a := range args {
 			switch a := a.(type) {
+			case bot.EphemeralID:
+				options = append(options, slack.MsgOptionPostEphemeral(string(a)))
 			case bot.ImageAttachment:
 				attachments = append(attachments, slack.Attachment{
 					ImageURL: a.URL,

plugins/meme/meme.go

@@ -196,7 +196,7 @@ func (p *MemePlugin) sendMeme(c bot.Connector, channel, channelName, msgID strin
 		id, w, h, err := p.genMeme(format, bullyImg, config)
 		if err != nil {
 			msg := fmt.Sprintf("Hey %v, I couldn't download that image you asked for.", from.Name)
-			p.bot.Send(c, bot.Message, channel, msg)
+			p.bot.Send(c, bot.Ephemeral, channel, from.ID, msg)
 			return
 		}
 		baseURL := p.c.Get("BaseURL", ``)
@@ -239,12 +239,13 @@ func (p *MemePlugin) slashMeme(c bot.Connector) http.HandlerFunc {
 		log.Debug().Msgf("Meme:\n%+v", r.PostForm.Get("text"))
 		channel := r.PostForm.Get("channel_id")
 		channelName := r.PostForm.Get("channel_name")
+		userID := r.PostForm.Get("user_id")
 		from := r.PostForm.Get("user_name")
 		text := r.PostForm.Get("text")
 		log.Debug().Msgf("channel: %s", channel)
 
 		user := &user.User{
-			ID:   from, // HACK but should work fine
+			ID:   userID, // HACK but should work fine
 			Name: from,
 		}