package logger

import (
	"bufio"
	"fmt"
	"os"
	"sync"
)

type Logger struct {
	verbose bool
	writer  *bufio.Writer
	mu      sync.Mutex
}

func New(verbose bool) *Logger {
	return &Logger{
		verbose: verbose,
		writer:  bufio.NewWriter(os.Stdout),
	}
}

func (l *Logger) Printf(format string, args ...interface{}) {
	if !l.verbose {
		return
	}

	l.mu.Lock()
	_, _ = fmt.Fprintf(l.writer, format, args...)
	_ = l.writer.Flush()
	l.mu.Unlock()
}