zones: introduce (private) logger interface

Signed-off-by: Alejandro Mery <amery@jpi.io>

pkg/zones/log.go

@@ -0,0 +1,49 @@
+package zones
+
+import "darvaza.org/slog"
+
+type logger interface {
+	withDebug() (slog.Logger, bool)
+	withInfo() (slog.Logger, bool)
+
+	debug() slog.Logger
+	info() slog.Logger
+	warn(error) slog.Logger
+	error(error) slog.Logger
+}
+
+var (
+	_ logger = (*Zones)(nil)
+)
+
+func (z *Zones) withDebug() (slog.Logger, bool) {
+	return z.debug().WithEnabled()
+}
+
+func (z *Zones) withInfo() (slog.Logger, bool) {
+	return z.debug().WithEnabled()
+}
+
+func (z *Zones) debug() slog.Logger {
+	return z.log.Debug()
+}
+
+func (z *Zones) info() slog.Logger {
+	return z.log.Info()
+}
+
+func (z *Zones) warn(err error) slog.Logger {
+	l := z.log.Warn()
+	if err != nil {
+		l = l.WithField(slog.ErrorFieldName, err)
+	}
+	return l
+}
+
+func (z *Zones) error(err error) slog.Logger {
+	l := z.log.Error()
+	if err != nil {
+		l = l.WithField(slog.ErrorFieldName, err)
+	}
+	return l
+}

pkg/zones/options.go

@@ -69,6 +69,7 @@ func WithLogger(log slog.Logger) ScanOption {
 		}
 
 		opt.Logger = log
+		m.log = log
 		return nil
 	}
 }

pkg/zones/zones.go

@@ -6,6 +6,7 @@ import (
 	"sort"
 
 	"darvaza.org/resolver"
+	"darvaza.org/slog"
 	"github.com/gofrs/uuid/v5"
 )
 
@@ -141,6 +142,7 @@ func (z *Zone) GatewayIDs() ([]int, int) {
 // Zones represents all zones in a cluster
 type Zones struct {
 	dir      fs.FS
+	log      slog.Logger
 	resolver resolver.Resolver
 	domain   string