botopolis/bot

package bot

import (
    "log"
    "os"
)

// Logger is the interface Robot exposes
type Logger interface {
    Debug(values ...interface{})
    Debugf(format string, values ...interface{})

    Info(values ...interface{})
    Infof(format string, values ...interface{})

    Warn(values ...interface{})
    Warnf(format string, values ...interface{})

    Error(values ...interface{})
    Errorf(format string, values ...interface{})

    Fatal(values ...interface{})
    Fatalf(format string, values ...interface{})

    Panic(values ...interface{})
    Panicf(format string, values ...interface{})
}

// defaultLogger is a very basic logger that the bot loads by default
var defaultLogger = basicLogger{log.New(os.Stdout, "", 0)}

type basicLogger struct{ *log.Logger }

func (l basicLogger) Debug(v ...interface{})            {}
func (l basicLogger) Debugf(f string, v ...interface{}) {}
func (l basicLogger) Info(v ...interface{})             { l.Logger.Println(v...) }
func (l basicLogger) Infof(f string, v ...interface{})  { l.Logger.Printf(f, v...) }
func (l basicLogger) Warn(v ...interface{})             { l.Logger.Println(v...) }
func (l basicLogger) Warnf(f string, v ...interface{})  { l.Logger.Printf(f, v...) }
func (l basicLogger) Error(v ...interface{})            { l.Logger.Println(v...) }
func (l basicLogger) Errorf(f string, v ...interface{}) { l.Logger.Printf(f, v...) }
func (l basicLogger) Panic(v ...interface{})            { l.Logger.Panicln(v...) }
func (l basicLogger) Panicf(f string, v ...interface{}) { l.Logger.Panicf(f, v...) }