Replace flat with "@" + implement vars with "$" + add special type "A+AAAA" + resolver (cache, retry, multi-results)

main.go

@@ -68,22 +68,21 @@ func main() {
 
 		log.Info("Creating DNS config file for existing zone", "zone", hZone.Name)
 
-		zone := dnsconfig.Zone{
+		zone := dnsconfig.TomlZone{
 			Domain:     strings.ToLower(hZone.Name),
 			DefaultTTL: 3600,
 		}
 
 		for _, record := range hZone.Records {
-			zone.Records = append(zone.Records, dnsconfig.Record{
+			zone.TomlRecords = append(zone.TomlRecords, dnsconfig.TomlRecord{
 				Name:  record.Name,
 				Type:  record.Type,
 				Value: record.Value,
 				TTL:   record.TTL,
-				Flat:  false,
 			})
 		}
 
-		err = dnsconfig.CreateZone(zone)
+		err = dnsconfig.CreateTomlZone(zone)
 		if err != nil {
 			log.Fatal(err)
 		}
@@ -109,31 +108,12 @@ func main() {
 	log.Info("Calculating sync diff (step 1: create/update)")
 	var keepTheseIds []string
 	for _, zone := range zones {
-		if zone.DefaultTTL <= 0 {
-			zone.DefaultTTL = 3600
-		}
-
 		for _, hZone := range hZones {
 			if strings.EqualFold(zone.Domain, hZone.Name) {
 				log.Info("Calculating sync diff for zone", "name", zone.Domain)
 
 				var alreadyFoundIds []string
 				for _, record := range zone.Records {
-					if record.Flat {
-						record.Value = helpers.ResolveRecord(
-							record.Value, record.Type,
-						)
-
-						if len(record.Value) == 0 {
-							log.Error("Could not flatten record, skipping", "record", record)
-							continue
-						}
-					}
-
-					if record.TTL <= 0 {
-						record.TTL = zone.DefaultTTL
-					}
-
 					var id string
 					for _, hRecord := range hZone.Records {
 						if slices.Contains(alreadyFoundIds, hRecord.ID) {