Refactor: Moved all under internal.

FEAT: Directadmin provider is now working

internal/dns_providers/directadmin.go

@@ -2,10 +2,12 @@ package dns_providers
 
 import (
 	"context"
+	"fmt"
+	"log"
 	"time"
 
 	"github.com/levelzerotechnology/directadmin-go"
-	"github.com/mkelcik/cloudflare-ddns-update/internal"
+	"hub.cybercinch.nz/cybercinch/ddns-update/internal"
 )
 
 const (
@@ -18,20 +20,54 @@ type Directadmin struct {
 	Config  internal.Config
 }
 
-func (d *Directadmin) UpdateRecord(hostname string, ip string, old_ip string) error {
+type ListDNSRecordsParams struct {
+	Name string
+}
+
+func (d *Directadmin) FetchRecord(hostname string) (string, error) {
+	dnsRecord, err := d.GetDnsRecord(hostname)
+	if err != nil {
+		log.Fatal("unable to retrieve DNS record")
+		return "", err
+	}
+
+	return dnsRecord[0].Value, nil
+}
+
+func (d *Directadmin) UpdateRecord(hostname string, ip string) error {
 
 	result := GetDomainParts(hostname)
+	current_record, _ := d.GetDnsRecord(hostname)
 
-	a := directadmin.DNSRecord{Name: result.Name, Ttl: 300, Type: "A", Value: old_ip}
-	b := directadmin.DNSRecord{Name: result.Name, Ttl: 300, Type: "A", Value: ip}
+	// Create an updated record for the new ip
+	new_record := directadmin.DNSRecord{Name: current_record[0].Name, Ttl: current_record[0].Ttl, Type: current_record[0].Type, Value: ip}
 
-	err := d.Client.UpdateDNSRecord(result.Domain, a, b)
+	err := d.Client.UpdateDNSRecord(result.Domain, current_record[0], new_record)
 	if err != nil {
 		return err
 	}
 	return nil
 }
 
+func (d *Directadmin) GetDnsRecord(hostname string) ([]directadmin.DNSRecord, error) {
+
+	domainParts := GetDomainParts(hostname)
+	dnsRecords, err := d.Client.GetDNSRecords(domainParts.Domain)
+	var slice []directadmin.DNSRecord
+
+	for _, dnsRecord := range dnsRecords {
+		if domainParts.Name == dnsRecord.Name {
+			slice = append(slice, dnsRecord)
+		}
+	}
+
+	if len(slice) == 0 {
+		return nil, fmt.Errorf("unable to find DNS record for %s", hostname)
+	}
+
+	return slice, err
+}
+
 func (d *Directadmin) NewClient(server_url string, username string, key string) {
 	api, err := directadmin.New(server_url, 5*time.Second, false, false)
 	if err != nil {