/**
日志过滤器
记录网站所有访问和请求
2015-7-2
任政
**/
package filter

import (
	util "app.yhyue.com/moapp/jybase/common"
	"encoding/json"
	"jy-docs/public"
	"log"
	"net/http"
	"net/url"
	"strings"
	"sync"
	"time"

	"app.yhyue.com/moapp/jybase/go-xweb/httpsession"
)

var (
	arr = []map[string]interface{}{}
	//对map的同步
	lock = &sync.Mutex{}
)

//日志过滤器
type logFilter struct {
	W       http.ResponseWriter
	R       *http.Request
	Session *httpsession.Session
	//内存缓存日志map
	GetSession map[string]interface{}
	SetSession map[string]interface{}
}

//继承过滤器方法
func (l *logFilter) Do() bool {
	go func() {
		l.addLog()
		if len(l.SetSession) > 0 {
			l.Session.SetMultiple(l.SetSession)
		}
	}()
	return true
}

//定时保存日志
func SaveLogTask() {
	lock.Lock()
	if len(arr) >= 1 {
		tmp := arr
		arr = make([]map[string]interface{}, 0)
		go func() {
			log.Println("timer..save..visit..log", len(tmp))
			public.Mgo_Log.SaveBulk("jy_docs_logs", tmp...)
		}()
	}

	lock.Unlock()
	time.AfterFunc(5*time.Minute, SaveLogTask)
}

func (l *logFilter) addLog() {
	timeNow := time.Now()
	agent := l.R.Header.Get("user-agent")
	ref := l.R.Referer()
	if l.GetSession["brefer"] == nil {
		bexist := false
		rurl, err := url.ParseRequestURI(ref)
		if err == nil && rurl != nil {
			host := rurl.Host
			if host != "" {
				host = strings.Split(host, ":")[0]
				if strings.Index("127.0.0.1-www.jianyu360.com", host) < 0 && strings.Index(host, "qmx.top") < 0 {
					bexist = true
					l.SetSession["brefer"] = 1
					l.SetSession["referhost"] = host
				}
			}
		}
		if !bexist {
			l.SetSession["brefer"] = -1
		}
	}
	s_url := l.R.RequestURI
	md, _ := json.Marshal(l.R.Form)
	str := string(md)
	logs := map[string]interface{}{
		"date":      timeNow.Unix(),
		"ip":        util.GetIp(l.R),
		"refer":     ref,
		"year":      timeNow.Year(),
		"month":     timeNow.Month(),
		"day":       timeNow.Day(),
		"hour":      timeNow.Hour(),
		"minutes":   timeNow.Minute(),
		"mdescribe": str,
		"client":    agent,
		"os":        util.GetOS(agent),
		"browse":    util.GetBrowse(agent),
		"method":    l.R.Method,
		"url":       s_url,
	}
	if l.GetSession["userId"] != nil {
		logs["userid"] = l.GetSession["userId"]
		logs["uname"] = l.GetSession["s_nickname"]
	}
	lock.Lock()
	arr = append(arr, logs)
	if len(arr) >= 500 || s_url == "/sl" {
		tmp := arr
		arr = make([]map[string]interface{}, 0)
		go func() {
			log.Println("save..visit..log", len(tmp))
			public.Mgo_Log.SaveBulk("jy_docs_logs", tmp...)
		}()
	}
	lock.Unlock()
}