package weixin

import (
	"encoding/json"
	"io/ioutil"
	"net/http"
	"time"

	"github.com/bitly/go-simplejson"
	"github.com/xxjwxc/public/mycache"
	"github.com/xxjwxc/public/myhttp"
	"github.com/xxjwxc/public/mylog"
)

const (
	_getTicket    = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=wx_card&access_token="
	_getJsurl     = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token="
	_getToken     = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid="
	_getSubscribe = "https://api.weixin.qq.com/cgi-bin/message/subscribe/send?access_token="
	_cacheToken   = "wx_access_token"
	_cacheTicket  = "weixin_card_ticket"
)

// GetAccessToken 获取微信accesstoken
// 获取登录凭证
func (_wx *wxTools) GetAccessToken() (accessToken string, err error) {
	//先从缓存中获取 access_token
	cache := mycache.NewCache(_cacheToken)
	err = cache.Value(_cacheToken, &accessToken)
	if err == nil {
		return
	}

	var url = _getToken + _wx.wxInfo.AppID + "&secret=" + _wx.wxInfo.AppSecret

	resp, err := http.Get(url)
	if err != nil {
		return "", err
	}

	defer resp.Body.Close()
	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return "", err
	}

	//注入client ip
	js, err := simplejson.NewJson(body)
	if err == nil {
		accessToken, _ = js.Get("access_token").String()
		//保存缓存
		cache.Add(_cacheToken, &accessToken, time.Duration(7000)*time.Second)
		//------------------end
	}
	//----------------------end

	return
}

// GetAPITicket 获取微信卡券ticket
func (_wx *wxTools) GetAPITicket() (ticket string, err error) {
	//先从缓存中获取
	cache := mycache.NewCache(_cacheTicket)
	err = cache.Value(_cacheTicket, &ticket)
	if err == nil {
		return
	}

	accessToken, e := _wx.GetAccessToken()
	if e != nil {
		mylog.Error(e)
		err = e
		return
	}
	var url = _getTicket + accessToken

	resp, e1 := http.Get(url)
	if e1 != nil {
		mylog.Error(e1)
		err = e1
		return
	}
	defer resp.Body.Close()
	body, e2 := ioutil.ReadAll(resp.Body)
	if e2 != nil {
		mylog.Error(e2)
		err = e2
		return
	}
	var result APITicket
	json.Unmarshal(body, &result)
	ticket = result.Ticket
	//保存缓存
	cache.Add(_cacheTicket, ticket, 7000*time.Second)

	return
}

// GetJsTicket 获取微信js ticket
func (_wx *wxTools) GetJsTicket() (ticket string, err error) {
	//先从缓存中获取
	cache := mycache.NewCache("weixin_js_ticket")
	err = cache.Value("base", &ticket)
	if err == nil {
		return
	}

	accessToken, e := _wx.GetAccessToken()
	if e != nil {
		mylog.Error(e)
		err = e
		return
	}
	var url = _getJsurl + accessToken

	resp, e1 := http.Get(url)
	if e1 != nil {
		mylog.Error(e1)
		err = e1
		return
	}
	defer resp.Body.Close()
	body, e2 := ioutil.ReadAll(resp.Body)
	if e2 != nil {
		mylog.Error(e2)
		err = e2
		return
	}
	var result APITicket
	json.Unmarshal(body, &result)
	ticket = result.Ticket
	//保存缓存
	cache.Add("base", ticket, 7000*time.Second)

	return
}

// SendTemplateMsg 发送订阅消息
func (_wx *wxTools) SendTemplateMsg(msg TempMsg) bool {
	accessToken, err := _wx.GetAccessToken()
	if err != nil {
		mylog.Error(err)
		return false
	}

	bo, _ := json.Marshal(msg)
	resb, _ := myhttp.OnPostJSON(_getSubscribe+accessToken, string(bo))

	var res ResTempMsg
	json.Unmarshal(resb, &res)
	return res.Errcode == 0
}