courgette/internal/logging/logger.go

// Logging module
//
// This module is a wrapper around the built-in `log` package
// and adds more control around if and how logging shows up
// in the code.
package logging

import (
	"log"
	"os"
)

type Logger struct {
	Info  log.Logger
	Error log.Logger
	Warn  log.Logger
}

var Log Logger

// Configures the loggers and initializes each logging level's instance.
//
// This should be run once and before any logging is done.
func ConfigureLogger() {
	Log = Logger{
		Info:  *log.New(os.Stdout, "[INFO] ", log.Ldate|log.Ltime),
		Warn:  *log.New(os.Stdout, "[WARN] ", log.Ldate|log.Ltime),
		Error: *log.New(os.Stderr, "[ERROR] ", log.Ldate|log.Ltime),
	}
}

func Info(message string, args ...any) {
	if len(args) == 0 {
		Log.Info.Print(message)
	} else {
		Log.Info.Printf(message, args...)
	}
}

func Error(message string, args ...any) {
	if len(args) == 0 {
		Log.Error.Print(message)
	} else {
		Log.Error.Printf(message, args...)
	}
}

func Warn(message string, args ...any) {
	if len(args) == 0 {
		Log.Warn.Print(message)
	} else {
		Log.Warn.Printf(message, args...)
	}
}