log

type BufferWriter interface {
	Writer
	Events() []*Event
}

type Event struct {
	Time      time.Time
	Level     Level
	Component string
	Caller    string
	Message   string

	Data Fields
	// contains filtered or unexported fields
}

type Eventx struct {
	Time      time.Time   `json:"ts"`
	Level     Level       `json:"level"`
	Component string      `json:"component"`
	Reference string      `json:"ref"`
	Message   string      `json:"message"`
	Caller    string      `json:"caller"`
	Detail    interface{} `json:"detail"`
}

type Fields map[string]interface{}

type Formatter interface {
	Bytes(e *Event) []byte
	String(e *Event) string
}

type Level uint

type LevelRewriteRule struct {
	Level     Level
	Component string
	Match     map[string]string
}

type Logger interface {
	// WithOutput adds an output to the Logger. The messages are written to the
	// provided writer if the log level of the message is more or equally critical
	// than level. Pass true for useColoe if colored output is desired. If the
	// writer doesn't support colored output, it will be automatically disabled.
	// The returned value implements the LoggerOutput interface which allows to
	// change the log level at any later point in time.
	WithOutput(w Writer) Logger

	// With returns a new Logger with the given context. The context may
	// printed along the message. This is up to the implementation.
	WithComponent(component string) Logger

	WithField(key string, value interface{}) Logger
	WithFields(fields Fields) Logger

	WithError(err error) Logger

	Log(format string, args ...interface{})

	// Debug writes a message with the debug log level to all registered outputs.
	// The message will be written according to fmt.Printf(). The detail field will
	// be reset to nil.
	Debug() Logger

	// Info writes a message with the info log level to all registered outputs.
	// The message will be written according to fmt.Printf(). The detail field will
	// be reset to nil.
	Info() Logger

	// Warn writes a message with the warn log level to all registered outputs.
	// The message will be written according to fmt.Printf(). The detail field will
	// be reset to nil.
	Warn() Logger

	// Error writes a message with the error log level to all registered outputs.
	// The message will be written according to fmt.Printf(). The detail field will
	// be reset to nil.
	Error() Logger

	// WithLevel writes a message with the given level to all registered outputs.
	// The message will be written according to fmt.Printf(). The detail field will
	// be reset to nil.
	WithLevel(level Level) Logger

	// Write implements the io.Writer interface such that it can be used in e.g. the
	// the log/Logger facility. Messages will be printed with debug level.
	Write(p []byte) (int, error)
}

type Writer interface {
	Write(e *Event) error
}