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Persist last sender ID and valid number

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This commit is contained in:
Victor Truong 2020-07-30 03:23:02 -07:00
parent 3385ce07bb
commit 567cb76f96
2 changed files with 22 additions and 9 deletions
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27
pkg/jia/handlers.go
View file

@ -18,12 +18,6 @@ func HandleInnerEvent(slackClient *slack.Client, innerEvent *slackevents.EventsA
}
}
// TODO: Persist to Redis
var (
lastValidNumber = 0
lastSender = ""
)
func onMessage(slackClient *slack.Client, event *slackevents.MessageEvent) {
// Ignore messages that aren't in the target channel, or are non-user messages
if event.Channel != jiaConfig.ChannelID || event.User == "USLACKBOT" || event.User == "" {
@ -42,7 +36,12 @@ func onMessage(slackClient *slack.Client, event *slackevents.MessageEvent) {
}
// Reject if sender also sent the previous number.
if event.User == lastSender {
lastSenderID, err := redisClient.Get("last_sender_id").Result()
if err != nil {
log.Println("Failed to retrieve the last sender")
return
}
if event.User == lastSenderID {
slackClient.AddReaction("bangbang", slack.ItemRef{
Channel: event.Channel,
Timestamp: event.TimeStamp,
@ -53,6 +52,16 @@ func onMessage(slackClient *slack.Client, event *slackevents.MessageEvent) {
}
// Ignore numbers that aren't in order.
lastValidNumberStr, err := redisClient.Get("last_valid_number").Result()
if err != nil {
log.Println("Failed to retrieve the last valid number")
return
}
lastValidNumber, err := strconv.Atoi(lastValidNumberStr)
if err != nil {
log.Println("Failed to convert the last valid number to an integer")
return
}
if matchedNumber != lastValidNumber+1 {
slackClient.AddReaction("bangbang", slack.ItemRef{
Channel: event.Channel,
@ -64,6 +73,6 @@ func onMessage(slackClient *slack.Client, event *slackevents.MessageEvent) {
}
// Finally!
lastValidNumber = matchedNumber
lastSender = event.User
redisClient.Set("last_valid_number", matchedNumber, 0)
redisClient.Set("last_sender_id", event.User, 0)
}

4
pkg/jia/server.go
View file

@ -26,6 +26,10 @@ func StartServer(config *Config) {
}
redisClient = redis.NewClient(options)
// Initialize default values
redisClient.SetNX("last_sender_id", "", 0)
redisClient.SetNX("last_valid_number", 0, 0)
// Initialize Slack app
slackClient = slack.New(config.BotToken)