logger

type JSONLogEntry struct {
	Timestamp time.Time              `json:"timestamp,omitempty"`
	Message   string                 `json:"message"`
	Severity  string                 `json:"severity,omitempty"`
	Trace     string                 `json:"logging.googleapis.com/trace,omitempty"`
	Metadata  map[string]interface{} `json:"metadata,omitempty"`
	// Logs Explorer allows filtering and display of this as `jsonPayload.component`.
	Component string `json:"component,omitempty"`
}

type LogLevel int

type Logger interface {
	// With will return a new logger using metadata as the base context
	With(metadata map[string]interface{}) Logger
	// WithPrefix will return a new logger with a prefix prepended to the message
	WithPrefix(prefix string) Logger
	// WithContext will return a new logger with the given context
	WithContext(ctx context.Context) Logger
	// Trace level logging
	Trace(msg string, args ...interface{})
	// Debug level logging
	Debug(msg string, args ...interface{})
	// Info level logging
	Info(msg string, args ...interface{})
	// Warning level logging
	Warn(msg string, args ...interface{})
	// Error level logging
	Error(msg string, args ...interface{})
	// Fatal level logging and exit with code 1
	Fatal(msg string, args ...interface{})
	// Stack will return a new logger that logs to the given logger as well as the current logger
	Stack(next Logger) Logger
}

type Sink io.Writer

type SinkLogger interface {
	Logger
	// SetSink will set the sink, and level to sink
	SetSink(sink Sink, level LogLevel)
}

type TestLogEntry struct {
	Severity  string
	Message   string
	Arguments []interface{}
}

type TestLogger struct {
	Logs []TestLogEntry
	// contains filtered or unexported fields
}