lbry.go/util/slack.go

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package util
import (
"strings"
"github.com/lbryio/lbry.go/errors"
"github.com/nlopes/slack"
log "github.com/sirupsen/logrus"
)
var defaultChannel string
var defaultUsername string
var slackApi *slack.Client
// InitSlack Initializes a slack client with the given token and sets the default channel.
func InitSlack(token string, channel string, username string) {
slackApi = slack.New(token)
defaultChannel = channel
defaultUsername = username
}
func SendToSlackInfo(format string, a ...interface{}) {
message := fmt.Sprintf(format, a...)
if slackApi != nil {
sendToSlack(":information_source: " + message)
}
log.Debugln(message)
}
func SendToSlackError(format string, a ...interface{}) {
message := fmt.Sprintf(format, a...)
if slackApi != nil {
sendToSlack(":sos: " + message)
}
log.Errorln(message)
}
// SendToSlackUser Sends message to a specific user.
func SendToSlackUser(user, username, message string) error {
if !strings.HasPrefix(user, "@") {
user = "@" + user
}
return sendToSlack(user, username, message)
}
// SendToSlackChannel Sends message to a specific channel.
func SendToSlackChannel(channel, username, message string) error {
if !strings.HasPrefix(channel, "#") {
channel = "#" + channel
}
return sendToSlack(channel, username, message)
}
// SendToSlack Sends message to the default channel.
func SendToSlack(message string) error {
if defaultChannel == "" {
return errors.Err("no default slack channel set")
}
return sendToSlack(defaultChannel, defaultUsername, message)
}
func sendToSlack(channel, username, message string) error {
var err error
if slackApi == nil {
err = errors.Err("no slack token provided")
} else {
log.Debugln("slack: " + channel + ": " + message)
_, _, err = slackApi.PostMessage(channel, message, slack.PostMessageParameters{Username: username})
}
if err != nil {
log.Errorln("error sending to slack: " + err.Error())
return err
}
return nil
}