package middleware

import (
	"bytes"
	"fmt"
	"io/ioutil"
	"strings"

	log "app.yhyue.com/moapp/jylog"
	"github.com/gogf/gf/v2/errors/gcode"
	"github.com/gogf/gf/v2/errors/gerror"
	"github.com/gogf/gf/v2/net/ghttp"
	"github.com/gogf/gf/v2/net/gtrace"
	"github.com/gogf/gf/v2/os/gtime"
	"github.com/gogf/gf/v2/util/gconv"
	"jygit.jydev.jianyu360.cn/dataservice/tripartite_gateway/common/db"
	. "jygit.jydev.jianyu360.cn/dataservice/tripartite_gateway/common/gatecode"
	"jygit.jydev.jianyu360.cn/dataservice/tripartite_gateway/core/router"
)

// ErrorHandler 统一异常拦截、提醒，及日志打印中间件
func ErrorHandler(r *ghttp.Request, routerManager *router.Manager) {
	r.Middleware.Next()
	_, span := gtrace.NewSpan(r.Context(), "ErrorHandler")
	defer span.End()
	// 程序异常信息处理
	err := r.GetError()
	if err != nil {
		gCode := gerror.Code(err)
		if gCode == gcode.CodeNil { // 非定义异常
			gCode = gcode.New(int(GLOBAL_ERR_ERR), GLOBAL_ERR_ERR.String(), err.Error())
		}
		appid := r.GetQuery("appid").String()
		log.WithContext(r.Context()).Errorln(appid, r.URL.Path, gCode.Code(), gCode.Message(), gCode.Detail())
		reqBody, _ := ioutil.ReadAll(r.Body)
		r.Body = ioutil.NopCloser(bytes.NewReader(reqBody))
		error_msg := gCode.Message()
		log_error_msg := ""
		if strings.Contains(error_msg, "%s") {
			error_msg = fmt.Sprintf(error_msg, gCode.Detail())
			log_error_msg = error_msg
		} else {
			log_error_msg = error_msg
			if gCode.Detail() != "" {
				log_error_msg += "，" + gconv.String(gCode.Detail())
			}
		}
		router, rErr := routerManager.GetRouterRule(r.URL.Path)
		if appid != "" && rErr == nil && router.Price > 0 {
			header := fmt.Sprintf(`{"timestamp":%s,"sign":"%s"}`, r.GetHeader("timestamp"), r.GetHeader("sign"))
			var surplus int64
			if gCode.Code() == int(GLOBAL_ERR_NOBALANCE) {
				surplus = gconv.Int64(gCode.Detail())
			}
			db.GateWatMySql.InsertBatch("log", []string{"appid", "url", "header", "param", "price", "surplus", "error_code", "error_msg", "ip", "create_time"}, []interface{}{appid, router.ReqUrl, header, string(reqBody), router.Price, surplus, gCode.Code(), log_error_msg, r.GetClientIp(), gtime.Now().String()})
		}
		//返回固定的友好信息
		r.Response.WriteJson(map[string]interface{}{
			"error_code": gCode.Code(),
			"error_msg":  error_msg,
		})
		r.Response.ResponseWriter.Flush()
	}
}