|
| 1 | +package log |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "log/slog" |
| 6 | +) |
| 7 | + |
| 8 | +type SlogLogger struct { |
| 9 | + logger *slog.Logger |
| 10 | + level Level |
| 11 | +} |
| 12 | + |
| 13 | +func NewSlogLogger(logger *slog.Logger, level Level) *SlogLogger { |
| 14 | + return &SlogLogger{ |
| 15 | + logger: logger, |
| 16 | + level: level, |
| 17 | + } |
| 18 | +} |
| 19 | + |
| 20 | +func (l *SlogLogger) Level() Level { |
| 21 | + return l.level |
| 22 | +} |
| 23 | + |
| 24 | +func (l *SlogLogger) Log(ctx context.Context, level Level, msg string, fields ...slog.Attr) { |
| 25 | + slogLevel := convertLevel(level) |
| 26 | + l.logger.LogAttrs(ctx, slogLevel, msg, fields...) |
| 27 | +} |
| 28 | + |
| 29 | +func (l *SlogLogger) Debug(msg string, fields ...slog.Attr) { |
| 30 | + l.Log(context.Background(), DebugLevel, msg, fields...) |
| 31 | +} |
| 32 | + |
| 33 | +func (l *SlogLogger) Info(msg string, fields ...slog.Attr) { |
| 34 | + l.Log(context.Background(), InfoLevel, msg, fields...) |
| 35 | +} |
| 36 | + |
| 37 | +func (l *SlogLogger) Warn(msg string, fields ...slog.Attr) { |
| 38 | + l.Log(context.Background(), WarnLevel, msg, fields...) |
| 39 | +} |
| 40 | + |
| 41 | +func (l *SlogLogger) Error(msg string, fields ...slog.Attr) { |
| 42 | + l.Log(context.Background(), ErrorLevel, msg, fields...) |
| 43 | +} |
| 44 | + |
| 45 | +func (l *SlogLogger) Fatal(msg string, fields ...slog.Attr) { |
| 46 | + l.Log(context.Background(), FatalLevel, msg, fields...) |
| 47 | + // Sync to ensure the log message is flushed before panic |
| 48 | + _ = l.Sync() |
| 49 | + panic("fatal: " + msg) |
| 50 | +} |
| 51 | + |
| 52 | +func (l *SlogLogger) WithFields(fields ...slog.Attr) Logger { |
| 53 | + fieldKvPairs := make([]any, 0, len(fields)*2) |
| 54 | + for _, attr := range fields { |
| 55 | + k, v := attr.Key, attr.Value |
| 56 | + fieldKvPairs = append(fieldKvPairs, k, v.Any()) |
| 57 | + } |
| 58 | + return &SlogLogger{ |
| 59 | + logger: l.logger.With(fieldKvPairs...), |
| 60 | + level: l.level, |
| 61 | + } |
| 62 | +} |
| 63 | + |
| 64 | +func (l *SlogLogger) WithError(err error) Logger { |
| 65 | + if err == nil { |
| 66 | + return l |
| 67 | + } |
| 68 | + return &SlogLogger{ |
| 69 | + logger: l.logger.With("error", err.Error()), |
| 70 | + level: l.level, |
| 71 | + } |
| 72 | +} |
| 73 | + |
| 74 | +func (l *SlogLogger) Named(name string) Logger { |
| 75 | + return &SlogLogger{ |
| 76 | + logger: l.logger.With("logger", name), |
| 77 | + level: l.level, |
| 78 | + } |
| 79 | +} |
| 80 | + |
| 81 | +func (l *SlogLogger) WithLevel(level Level) Logger { |
| 82 | + return &SlogLogger{ |
| 83 | + logger: l.logger, |
| 84 | + level: level, |
| 85 | + } |
| 86 | +} |
| 87 | + |
| 88 | +func (l *SlogLogger) Sync() error { |
| 89 | + // Slog does not require syncing |
| 90 | + return nil |
| 91 | +} |
| 92 | + |
| 93 | +func convertLevel(level Level) slog.Level { |
| 94 | + switch level { |
| 95 | + case DebugLevel: |
| 96 | + return slog.LevelDebug |
| 97 | + case InfoLevel: |
| 98 | + return slog.LevelInfo |
| 99 | + case WarnLevel: |
| 100 | + return slog.LevelWarn |
| 101 | + case ErrorLevel: |
| 102 | + return slog.LevelError |
| 103 | + case FatalLevel: |
| 104 | + return slog.LevelError |
| 105 | + default: |
| 106 | + return slog.LevelInfo |
| 107 | + } |
| 108 | +} |
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