94 lines
1.9 KiB
Go
94 lines
1.9 KiB
Go
// Copyright 2021 Harran Ali <harran.m@gmail.com>. All rights reserved.
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// Use of this source code is governed by MIT-style
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// license that can be found in the LICENSE file.
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package logger
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import (
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"io"
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"log"
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"os"
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)
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// logs file
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var logsFile *os.File
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type Logger struct {
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infoLogger *log.Logger
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warningLogger *log.Logger
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errorLogger *log.Logger
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debugLogger *log.Logger
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}
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var l *Logger
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type LogsDriver interface {
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GetTarget() interface{}
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}
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type LogFileDriver struct {
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FilePath string
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}
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type LogNullDriver struct{}
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func (n LogNullDriver) GetTarget() interface{} {
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return nil
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}
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func (f LogFileDriver) GetTarget() interface{} {
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return f.FilePath
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}
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func NewLogger(driver LogsDriver) *Logger {
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if driver.GetTarget() == nil {
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l = &Logger{
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infoLogger: log.New(io.Discard, "info: ", log.LstdFlags),
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warningLogger: log.New(io.Discard, "warning: ", log.LstdFlags),
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errorLogger: log.New(io.Discard, "error: ", log.LstdFlags),
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debugLogger: log.New(io.Discard, "debug: ", log.LstdFlags),
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}
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return l
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}
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path, ok := driver.GetTarget().(string)
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if !ok {
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panic("something wrong with the file path")
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}
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logsFile, err := os.OpenFile(path, os.O_CREATE|os.O_APPEND|os.O_RDWR, 0644)
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if err != nil {
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panic(err)
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}
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l = &Logger{
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infoLogger: log.New(logsFile, "info: ", log.LstdFlags),
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warningLogger: log.New(logsFile, "warning: ", log.LstdFlags),
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errorLogger: log.New(logsFile, "error: ", log.LstdFlags),
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debugLogger: log.New(logsFile, "debug: ", log.LstdFlags),
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}
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return l
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}
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func ResolveLogger() *Logger {
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return l
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}
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func (l *Logger) Info(msg interface{}) {
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l.infoLogger.Println(msg)
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}
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func (l *Logger) Debug(msg interface{}) {
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l.debugLogger.Println(msg)
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}
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func (l *Logger) Warning(msg interface{}) {
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l.warningLogger.Println(msg)
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}
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func (l *Logger) Error(msg interface{}) {
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l.errorLogger.Println(msg)
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}
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func CloseLogsFile() {
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if logsFile != nil {
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defer logsFile.Close()
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}
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}
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