package reforger_utils

import (
	"log/slog"
	"os"
	"sync"
)

var (
	loggerMu sync.RWMutex
	logger   = newDefaultLogger()
)

func newDefaultLogger() *slog.Logger {
	return slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}))
}

// SetLogger configures the package logger.
// Passing nil resets it to the default JSON logger writing to stdout.
func SetLogger(l *slog.Logger) {
	loggerMu.Lock()
	defer loggerMu.Unlock()

	if l == nil {
		logger = newDefaultLogger()
		return
	}

	logger = l
}

func getLogger() *slog.Logger {
	loggerMu.RLock()
	defer loggerMu.RUnlock()
	return logger
}