refactor: move actions into internal

pkg/notifications/slack.go

@@ -0,0 +1,44 @@
+package notifications
+
+import (
+	t "github.com/containrrr/watchtower/pkg/types"
+	"github.com/johntdyer/slackrus"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+const (
+	slackType = "slack"
+)
+
+type slackTypeNotifier struct {
+	slackrus.SlackrusHook
+}
+
+func newSlackNotifier(c *cobra.Command, acceptedLogLevels []log.Level) t.Notifier {
+	flags := c.PersistentFlags()
+
+	hookURL, _ := flags.GetString("notification-slack-hook-url")
+	userName, _ := flags.GetString("notification-slack-identifier")
+	channel, _ := flags.GetString("notification-slack-channel")
+	emoji, _ := flags.GetString("notification-slack-icon-emoji")
+	iconURL, _ := flags.GetString("notification-slack-icon-url")
+
+	n := &slackTypeNotifier{
+		SlackrusHook: slackrus.SlackrusHook{
+			HookURL:        hookURL,
+			Username:       userName,
+			Channel:        channel,
+			IconEmoji:      emoji,
+			IconURL:        iconURL,
+			AcceptedLevels: acceptedLogLevels,
+		},
+	}
+
+	log.AddHook(n)
+	return n
+}
+
+func (s *slackTypeNotifier) StartNotification() {}
+
+func (s *slackTypeNotifier) SendNotification() {}