package main

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

type (
	SpiderLog struct {
		F       *os.File
		LogFile *csv.Writer
	}
)

var (
	sl *SpiderLog
)

// NewSpiderLog
func NewSpiderLog(sf string) (*SpiderLog, error) {
	fo, err := os.Create(sf)
	if err != nil {
		return nil, err
	}
	return &SpiderLog{
		fo,
		csv.NewWriter(fo),
	}, nil
}

// Close
func (sl *SpiderLog) Close() {
	sl.LogFile.Flush()
	sl.F.Close()
}

// Log
func (sl *SpiderLog) Log(arg ...string) {
	err := sl.LogFile.Write(arg)
	if err != nil {
		log.Println(err)
	}
}