driver

type LogEvent struct {
	Timestamp time.Time
	Message   string
}

type LogGroupConfig struct {
	Name          string
	RetentionDays int
	Tags          map[string]string
}

type LogGroupInfo struct {
	Name          string
	ResourceID    string
	RetentionDays int
	CreatedAt     string
	StoredBytes   int64
	Tags          map[string]string
}

type LogQueryInput struct {
	LogGroup  string
	LogStream string // empty means all streams
	StartTime time.Time
	EndTime   time.Time
	Pattern   string // filter pattern, empty means all
	Limit     int
}

type LogStreamInfo struct {
	Name      string
	CreatedAt string
	LastEvent string
}

type Logging interface {
	CreateLogGroup(ctx context.Context, config LogGroupConfig) (*LogGroupInfo, error)
	DeleteLogGroup(ctx context.Context, name string) error
	GetLogGroup(ctx context.Context, name string) (*LogGroupInfo, error)
	ListLogGroups(ctx context.Context) ([]LogGroupInfo, error)

	CreateLogStream(ctx context.Context, logGroup, streamName string) (*LogStreamInfo, error)
	DeleteLogStream(ctx context.Context, logGroup, streamName string) error
	ListLogStreams(ctx context.Context, logGroup string) ([]LogStreamInfo, error)

	PutLogEvents(ctx context.Context, logGroup, streamName string, events []LogEvent) error
	GetLogEvents(ctx context.Context, input *LogQueryInput) ([]LogEvent, error)
}