package main

import (
	"errors"

	"github.com/goinsane/logng/v2"
)

func main() {
	// log by severity and verbosity.
	// default Logger's severity is SeverityInfo.
	// default Logger's verbose is 0.
	logng.Debug("this is debug log. it won't be shown.")
	logng.Info("this is info log.")
	logng.Warning("this is warning log.")
	logng.V(1).Error("this is error log, verbosity 1. it won't be shown.")

	// set stack trace severity
	logng.SetStackTraceSeverity(logng.SeverityWarning)

	// logs with stack trace, because the log severity is warning
	logng.Warningf("a warning: %w", errors.New("unknown"))

	// log with fields
	logger := logng.WithFieldKeyVals("user_name", "john", "ip", "1.2.3.4")
	logger.Infof("connected user:\n%s", "John Smith")

	// logs with fields and stack trace
	logger.Error("an error")
}