func addChannelHistory(s *slack.Slack, db *sql.DB, channel, oldest string) (string, error) {
params := slack.NewHistoryParameters()
params.Oldest = oldest
params.Count = 1000
history, err := s.GetChannelHistory(channel, params)
if err != nil {
return "", err
}
for _, msg := range history.Messages {
if msg.SubType != "" {
continue
}
fmt.Printf("%s: %s\n", msg.User, msg.Text)
ts := timestampToTime(msg.Timestamp)
_, err := db.Exec(
`INSERT INTO messages(channel_id, user_id, text, timestamp, created_at, updated_at)
VALUES(?, ?, ?, ?, NOW(), NOW())
`,
channel, msg.User, msg.Text, ts.Format("2006-01-02 15:04:05"))
if err != nil {
return "", err
}
}
if len(history.Messages) > 0 {
return history.Messages[0].Timestamp, nil
}
return "", nil
}
func lastMessageTimestamp(api *slack.Slack, channel slack.Channel) (int64, error) {
var latest string
for {
historyParams := slack.HistoryParameters{Count: 5}
if latest != "" {
historyParams.Latest = latest
}
history, err := api.GetChannelHistory(channel.Id, historyParams)
if err != nil {
return -1, err
}
if len(history.Messages) == 0 {
return -1, nil
}
for _, msg := range history.Messages {
latest = msg.Msg.Timestamp
if msg.SubType != "channel_join" && msg.SubType != "channel_leave" {
msgStamp := strings.Split(msg.Msg.Timestamp, ".")
if timestamp, err := strconv.ParseInt(msgStamp[0], 10, 32); err == nil {
return timestamp, nil
}
}
}
}
}
func fetchChannelHistory(api *slack.Slack, ID string) []slack.Message {
historyParams := slack.NewHistoryParameters()
historyParams.Count = 1000
// Fetch History
history, err := api.GetChannelHistory(ID, historyParams)
check(err)
messages := history.Messages
latest := messages[len(messages)-1].Timestamp
for {
if history.HasMore != true {
break
}
historyParams.Latest = latest
history, err = api.GetChannelHistory(ID, historyParams)
check(err)
length := len(history.Messages)
if length > 0 {
latest = history.Messages[length-1].Timestamp
messages = append(messages, history.Messages...)
}
}
return messages
}
