RITlug/teleirc

package internal

import (
    "log"
    "os"
)

var (
    logFlags = log.Ldate | log.Ltime
    info     = log.New(os.Stdout, "INFO: ", logFlags)
    debug    = log.New(os.Stdout, "DEBUG: ", logFlags)
    errorLog = log.New(os.Stderr, "ERROR: ", logFlags)
    warning  = log.New(os.Stderr, "WARNING: ", logFlags)
    plain    = log.New(os.Stdout, "", 0)
)

// DebugLogger provides an interface to call the logging functions
type DebugLogger interface {
    LogInfo(v ...interface{})
    LogDebug(v ...interface{})
    LogError(v ...interface{})
    LogWarning(v ...interface{})
    PrintVersion(v ...interface{})
}

// Debug contains information about the debug level
type Debug struct {
    DebugLevel bool
}

// LogInfo prints info-level messages to standard out
func (d Debug) LogInfo(v ...interface{}) {
    info.Println(v...)
}

// LogDebug prints debug-level messages to standard out
func (d Debug) LogDebug(v ...interface{}) {
    if d.DebugLevel {
        debug.Println(v...)
    }
}

// LogError prints error-level messages to standard out
func (d Debug) LogError(v ...interface{}) {
    errorLog.Println(v...)
}

// LogWarning prints warning-level messages to standard out
func (d Debug) LogWarning(v ...interface{}) {
    if d.DebugLevel {
        warning.Println(v...)
    }
}

// PrintVersion prints the TeleIRC version number
func (d Debug) PrintVersion(v ...interface{}) {
    plain.Println(v...)
}