Oauth. Car Backups.

data/app_log_handler.go

@@ -0,0 +1,50 @@
+package data
+
+import (
+	"context"
+	"errors"
+	"log/slog"
+	"time"
+)
+
+type AppLogHandler struct {
+	level   slog.Level
+	logFunc func(string, ...any)
+	attrs   []slog.Attr
+	groups  []string
+}
+
+func NewAppLogHandler(f func(string, ...any)) *AppLogHandler {
+	return &AppLogHandler{logFunc: f}
+}
+
+func (a *AppLogHandler) SetLevel(l slog.Level)       { a.level = l }
+func (a *AppLogHandler) setAttrs(attrs ...slog.Attr) { a.attrs = attrs }
+func (a *AppLogHandler) addAttrs(attrs ...slog.Attr) { a.attrs = append(a.attrs, attrs...) }
+func (a *AppLogHandler) setGroups(groups ...string)  { a.groups = groups }
+func (a *AppLogHandler) addGroups(groups ...string)  { a.groups = append(a.groups, groups...) }
+
+// AppLogHandler can handle all levels
+func (a *AppLogHandler) Enabled(_ context.Context, lvl slog.Level) bool { return lvl >= a.level }
+
+func (a *AppLogHandler) Handle(ctx context.Context, rcd slog.Record) error {
+	if a.logFunc == nil {
+		return errors.New("no log func defined")
+	}
+	a.logFunc("%s %s %s", rcd.Time.Format(time.TimeOnly), rcd.Level, rcd.Message)
+	return nil
+}
+
+func (a *AppLogHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
+	attrs = append(attrs, a.attrs...)
+	ret := NewAppLogHandler(a.logFunc)
+	ret.addAttrs(attrs...)
+	return ret
+}
+
+func (a *AppLogHandler) WithGroup(name string) slog.Handler {
+	groups := append(a.groups, name)
+	ret := NewAppLogHandler(a.logFunc)
+	ret.setGroups(groups...)
+	return ret
+}