package logging

import (
	"context"
	"io"
	"log"
)

type StandardLogger struct {
	logger *log.Logger
}

func NewStandardLogger(writer io.Writer) *StandardLogger {
	return &StandardLogger{
		logger: log.New(writer, "", log.LstdFlags),
	}
}

func (l *StandardLogger) Info(ctx context.Context, msg string, fields ...interface{}) {
	l.log("INFO", msg, fields...)
}

func (l *StandardLogger) Error(ctx context.Context, msg string, fields ...interface{}) {
	l.log("ERROR", msg, fields...)
}

func (l *StandardLogger) Debug(ctx context.Context, msg string, fields ...interface{}) {
	l.log("DEBUG", msg, fields...)
}

func (l *StandardLogger) Warn(ctx context.Context, msg string, fields ...interface{}) {
	l.log("WARN", msg, fields...)
}

func (l *StandardLogger) log(level, msg string, fields ...interface{}) {
	if len(fields) > 0 {
		l.logger.Printf("[%s] %s %v", level, msg, fields)
	} else {
		l.logger.Printf("[%s] %s", level, msg)
	}
}