package main

import (
	"encoding/json"
	"log"
	"os"
)

var oplog *Oplog

// Oplog 操作日志类
type Oplog struct {
	oplog *log.Logger
}

func initOplog() {
	if oplog == nil {
		oplog = &Oplog{}
		f, err := os.OpenFile("./op.log", os.O_CREATE|os.O_APPEND|os.O_RDWR, 0644)
		if err != nil {
			panic(err)
		}
		oplog.oplog = log.New(f, "", log.Lmsgprefix)
	}
}

// Write 操作日志写入
func (op *Oplog) Write(data interface{}) {
	if d, ok := data.(*Task); ok {
		data, err := json.Marshal(d)
		if err != nil {
			log.Println(err)
		}
		op.oplog.Println(string(data))
		return
	}
	log.Println("data must Task: ", data)
}