logger

type Entry 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
	// WithSink returns a Logger which will also delegate logs to the provided sink
	WithSink(sink Sink) 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{})
}

type Sink interface {
	// Write will receive the log output as a slice of bytes
	Write([]byte) error
}

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

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