Update nlopes/slack vendor

vendor/github.com/nlopes/slack/messages.go

@@ -2,12 +2,13 @@ package slack
 
 // OutgoingMessage is used for the realtime API, and seems incomplete.
 type OutgoingMessage struct {
-	ID              int    `json:"id"`
+	ID int `json:"id"`
 	// channel ID
 	Channel         string `json:"channel,omitempty"`
 	Text            string `json:"text,omitempty"`
 	Type            string `json:"type,omitempty"`
 	ThreadTimestamp string `json:"thread_ts,omitempty"`
+	ThreadBroadcast bool   `json:"reply_broadcast,omitempty"`
 }
 
 // Message is an auxiliary type to allow us to have a message containing sub messages
@@ -26,9 +27,12 @@ type Msg struct {
 	Timestamp       string       `json:"ts,omitempty"`
 	ThreadTimestamp string       `json:"thread_ts,omitempty"`
 	IsStarred       bool         `json:"is_starred,omitempty"`
-	PinnedTo        []string     `json:"pinned_to, omitempty"`
+	PinnedTo        []string     `json:"pinned_to,omitempty"`
 	Attachments     []Attachment `json:"attachments,omitempty"`
 	Edited          *Edited      `json:"edited,omitempty"`
+	LastRead        string       `json:"last_read,omitempty"`
+	Subscribed      bool         `json:"subscribed,omitempty"`
+	UnreadCount     int          `json:"unread_count,omitempty"`
 
 	// Message Subtypes
 	SubType string `json:"subtype,omitempty"`
@@ -65,7 +69,7 @@ type Msg struct {
 	ParentUserId string  `json:"parent_user_id,omitempty"`
 
 	// file_share, file_comment, file_mention
-	File *File `json:"file,omitempty"`
+	Files []File `json:"files,omitempty"`
 
 	// file_share
 	Upload bool `json:"upload,omitempty"`
@@ -82,6 +86,11 @@ type Msg struct {
 
 	// reactions
 	Reactions []ItemReaction `json:"reactions,omitempty"`
+
+	// slash commands and interactive messages
+	ResponseType    string `json:"response_type,omitempty"`
+	ReplaceOriginal bool   `json:"replace_original"`
+	DeleteOriginal  bool   `json:"delete_original"`
 }
 
 // Icon is used for bot messages
@@ -109,27 +118,33 @@ type Event struct {
 
 // Ping contains information about a Ping Event
 type Ping struct {
-	ID   int    `json:"id"`
-	Type string `json:"type"`
+	ID        int    `json:"id"`
+	Type      string `json:"type"`
+	Timestamp int64  `json:"timestamp"`
 }
 
 // Pong contains information about a Pong Event
 type Pong struct {
-	Type    string `json:"type"`
-	ReplyTo int    `json:"reply_to"`
+	Type      string `json:"type"`
+	ReplyTo   int    `json:"reply_to"`
+	Timestamp int64  `json:"timestamp"`
 }
 
 // NewOutgoingMessage prepares an OutgoingMessage that the user can
 // use to send a message. Use this function to properly set the
 // messageID.
-func (rtm *RTM) NewOutgoingMessage(text string, channelID string) *OutgoingMessage {
+func (rtm *RTM) NewOutgoingMessage(text string, channelID string, options ...RTMsgOption) *OutgoingMessage {
 	id := rtm.idGen.Next()
-	return &OutgoingMessage{
+	msg := OutgoingMessage{
 		ID:      id,
 		Type:    "message",
 		Channel: channelID,
 		Text:    text,
 	}
+	for _, option := range options {
+		option(&msg)
+	}
+	return &msg
 }
 
 // NewTypingMessage prepares an OutgoingMessage that the user can
@@ -143,3 +158,21 @@ func (rtm *RTM) NewTypingMessage(channelID string) *OutgoingMessage {
 		Channel: channelID,
 	}
 }
+
+// RTMsgOption allows configuration of various options available for sending an RTM message
+type RTMsgOption func(*OutgoingMessage)
+
+// RTMsgOptionTS sets thead timestamp of an outgoing message in order to respond to a thread
+func RTMsgOptionTS(threadTimestamp string) RTMsgOption {
+	return func(msg *OutgoingMessage) {
+		msg.ThreadTimestamp = threadTimestamp
+	}
+}
+
+// RTMsgOptionBroadcast sets broadcast reply to channel to "true"
+func RTMsgOptionBroadcast() RTMsgOption {
+	return func(msg *OutgoingMessage) {
+		msg.ThreadBroadcast = true
+	}
+
+}