package controllers

import (
	NatsSwever "Wx_MP/Nats/Server"
	"Wx_MP/lib"
	"Wx_MP/logs"
	"crypto/sha1"
	"encoding/xml"
	"fmt"
	beego "github.com/beego/beego/v2/server/web"
	"io"
	"sort"
	"strings"
	"time"
)

type WxController struct {
	beego.Controller
}

// 列表 - http://cloud.hoooooo.cn/
func (c *WxController) Wx_handler() {

	//  c.Ctx.Input.RequestBody  beego 无法获取RequestBody 里的内容
	//conf文件内增加：
	//copyrequestbody = true
	logs.Println("RequestBody-", string(c.Ctx.Input.RequestBody))
	//var ob map[string]interface{}
	//var err error
	//if err = json.Unmarshal(c.Ctx.Input.RequestBody, &ob); err == nil {
	//
	//} else {
	//
	//}
	if strings.Contains(string(c.Ctx.Input.RequestBody), "failed") {
		logs.PrintlnE("RequestBody-", string(c.Ctx.Input.RequestBody))
	}

	Reply_Content := ""

	var Person_xml lib.Person_Xml
	err := xml.Unmarshal(c.Ctx.Input.RequestBody, &Person_xml)
	if err != nil {
		logs.PrintlnE("！！！！！微信消息 xml.Unmarshal 解析失败")
		c.Ctx.WriteString("")
		return
	}
	logs.Println("ToUserName:", Person_xml.ToUserName)
	logs.Println("MsgType:", Person_xml.MsgType)
	logs.Println("MsgType:", Person_xml.Event)

	switch Person_xml.MsgType {
	case "text":
		Reply_Content = NatsSwever.Wx_BasicMessage_Text(c.Ctx.Input.RequestBody)
		break

	case "event":

		var Person_Event_xml lib.Person_Event_Xml
		err := xml.Unmarshal(c.Ctx.Input.RequestBody, &Person_Event_xml)
		if err != nil {
			logs.PrintlnE("！！！！！微信消息 xml.Unmarshal 解析失败")
			c.Ctx.WriteString("")
			return
		}
		switch Person_Event_xml.Event {
		case "subscribe_msg_sent_event":
			c.Ctx.WriteString("")
			return
		}

		Reply_Content = NatsSwever.Wx_BasicMessage_Event(c.Ctx.Input.RequestBody)

		break
	}

	logs.Println("Reply_Content 回复消息：", Reply_Content)

	// 回复消息
	if len(Reply_Content) == 0 {
		Reply_Content = "无法识别您的指令"
	}

	// 回复消息  必须是 xml
	type xml struct {
		ToUserName   string
		FromUserName string
		CreateTime   int64
		MsgType      string
		Content      string
	}

	var p = xml{
		ToUserName:   Person_xml.FromUserName,
		FromUserName: Person_xml.ToUserName,
		CreateTime:   time.Now().Unix(),
		MsgType:      "text",
		Content:      Reply_Content,
	}
	logs.Println("xml:", p)
	c.Data["xml"] = &p
	c.ServeXML()

	return

}

// 验证 服务器配置
func (c *WxController) Wx_Verification() {
	//
	timestamp := c.GetString("timestamp")
	nonce := c.GetString("nonce")
	signatureIn := c.GetString("signature")
	echostr := c.GetString("echostr")
	println("timestamp:", timestamp)
	println("nonce:", nonce)
	println("signatureIn:", signatureIn)

	signatureGen := MakeSignature("wxb5b2c9147ae0b9db", timestamp, nonce)
	println("signatureGen:", signatureGen)

	//if signatureGen != signatureIn {
	//	return
	//}

	c.Ctx.WriteString(echostr)

	return
}

func MakeSignature(token, timestamp, nonce string) string {
	strs := []string{token, timestamp, nonce}
	sort.Strings(strs)
	sha := sha1.New()
	io.WriteString(sha, strings.Join(strs, ""))
	return fmt.Sprintf("%x", sha.Sum(nil))
}