migration to replicaset connection

api/pkg/db/internal/mongo/mongo.go

@@ -1,22 +1,49 @@
 package mongo
 
 import (
-	"net/url"
+	"net"
+	"strings"
+
+	"go.mongodb.org/mongo-driver/mongo/options"
 )
 
-func buildURI(s *DBSettings) string {
-	u := &url.URL{
-		Scheme: "mongodb",
-		Host:   s.Host,
-		Path:   "/" + url.PathEscape(s.Database), // /my%20db
+func buildOptions(s *DBSettings) *options.ClientOptions {
+	opts := options.Client()
+
+	if s.URI != "" {
+		return opts.ApplyURI(s.URI)
+	}
+
+	hosts := make([]string, 0, len(s.Hosts)+1)
+	for _, h := range s.Hosts {
+		if trimmed := strings.TrimSpace(h); trimmed != "" {
+			hosts = append(hosts, trimmed)
+		}
+	}
+
+	if len(hosts) == 0 && s.Host != "" {
+		host := s.Host
+		if _, _, err := net.SplitHostPort(host); err != nil && s.Port != "" {
+			host = net.JoinHostPort(host, s.Port)
+		}
+		hosts = append(hosts, host)
+	}
+
+	if len(hosts) > 0 {
+		opts.SetHosts(hosts)
 	}
 
-	q := url.Values{}
 	if s.ReplicaSet != "" {
-		q.Set("replicaSet", s.ReplicaSet)
+		opts.SetReplicaSet(s.ReplicaSet)
 	}
 
-	u.RawQuery = q.Encode()
+	cred := options.Credential{
+		AuthMechanism: s.AuthMechanism,
+		AuthSource:    s.AuthSource,
+		Username:      s.User,
+		Password:      s.Password,
+	}
+	opts.SetAuth(cred)
 
-	return u.String()
+	return opts
 }