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path: root/logging/sink.go
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package logging

import (
	"context"
	"log/slog"
)

type Sink interface {
	Append(r slog.Record) error
	Enabled(level slog.Level) bool
}

type SinkHandler struct {
	Sink Sink
}

var _ slog.Handler = &SinkHandler{}

func NewSinkHandler(sink Sink) *SinkHandler {
	return &SinkHandler{
		Sink: sink,
	}
}

func (h *SinkHandler) Enabled(ctx context.Context, level slog.Level) bool {
	if h.Sink == nil {
		return false // disable if no sink
	}
	return h.Sink.Enabled(level)
}

func (h *SinkHandler) Handle(ctx context.Context, r slog.Record) error {
	newRecord := slog.NewRecord(r.Time, r.Level, r.Message, r.PC)

	attrs := GetNormalizedAttrs(r)

	newRecord.AddAttrs(attrs...)
	return h.Sink.Append(newRecord)
}

func (h *SinkHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
	return ChainAttrs(h, attrs)

}

func (h *SinkHandler) WithGroup(name string) slog.Handler {
	return ChainGroup(h, name)
}