feat: notification provider (#8)

Co-authored-by: Timo Behrendt <t.behrendt@t00n.de>
Co-committed-by: Timo Behrendt <t.behrendt@t00n.de>

main.go

@@ -2,13 +2,17 @@ package main
 
 import (
 	"fmt"
+	"time"
+
 	"realdnydns/pkg/changeDetector"
 	"realdnydns/pkg/config"
 	"realdnydns/pkg/dnsProvider"
 	ionos "realdnydns/pkg/dnsProvider/ionos"
 	"realdnydns/pkg/externalIpProvider"
 	plainExternalIpProvider "realdnydns/pkg/externalIpProvider/plain"
-	"time"
+	"realdnydns/pkg/notificationProvider"
+	notificationProviderConsole "realdnydns/pkg/notificationProvider/console"
+	gotify "realdnydns/pkg/notificationProvider/gotify"
 
 	"github.com/go-co-op/gocron"
 )
@@ -50,7 +54,25 @@ func main() {
 		panic(fmt.Errorf("unknown DNS provider: %s", configClient.DNSProvider.Type))
 	}
 
-	changeDetector := changeDetector.New(externalIpProvider, dnsProvider, configClient.Domains)
+	var notificationProvider notificationProvider.NotificationProvider
+	switch configClient.NotificationProvider.Type {
+	case "gotify":
+		var gotifyConfig gotify.NotificationProviderImplGotifyConfig
+		err := configClient.NotificationProvider.ProviderConfig.Decode(&gotifyConfig)
+		if err != nil {
+			panic(err)
+		}
+
+		notificationProvider, err = gotify.New(gotifyConfig)
+		if err != nil {
+			panic(err)
+		}
+	default:
+		// Use default console notification provider
+		notificationProvider = notificationProviderConsole.New()
+	}
+
+	changeDetector := changeDetector.New(externalIpProvider, dnsProvider, notificationProvider, configClient.Domains)
 
 	s := gocron.NewScheduler(time.UTC)
 	s.SingletonMode()