package p

import (
	"fmt"
	"log"
	"math/rand"
	"app.yhyue.com/moapp/jybase/mysql"
	"strings"
	"sync"
	"time"

	"github.com/donnie4w/go-logger/logger"
)

type WxTplMsgCustom struct {
	FirstData  string
	AdvertCode string
}

//
type WxTplMsgCustoms struct {
	All       *sync.Map
	Mysql     *mysql.Mysql
	TplId     string
	SceneCode []string
}

/* 新建结构体
 * @Param mysql 数据库实例
 * @Param tplId 模板消息id
 * @Param sceneCode 场景代码
 * @Return error
 */
func NewWxTplMsgCustoms(m *mysql.Mysql, tplId string, sceneCode ...string) *WxTplMsgCustoms {
	return &WxTplMsgCustoms{
		All:       &sync.Map{},
		Mysql:     m,
		TplId:     tplId,
		SceneCode: sceneCode,
	}
}

//初始化自定义模板消息，如果有异常，程序终止
func (w *WxTplMsgCustoms) ForceVerify() {
	w.init(true)
}

//重新加载自定义模板消息
func (w *WxTplMsgCustoms) Reload() {
	w.init(false)
}

//初始化自定义模板消息
func (w *WxTplMsgCustoms) init(isVerify bool) {
	param := []interface{}{w.TplId}
	wh := []string{}
	for _, v := range w.SceneCode {
		param = append(param, v)
		wh = append(wh, "?")
	}
	list := w.Mysql.SelectBySql(`select a.sceneCode,c.firstdata,c.advertCode from scene a 
	inner join template_message b on (a.templateId=b.id and b.templateId=? and a.sceneCode in (`+strings.Join(wh, ",")+`)) 
	inner join template_config c on (a.id=c.sceneId and c.state=1 and c.isTest=1)`, param...)
	all := map[string][]*WxTplMsgCustom{}
	if list != nil {
		for _, v := range *list {
			sceneCode, _ := v["sceneCode"].(string)
			sceneCode = strings.TrimSpace(sceneCode)
			firstdata, _ := v["firstdata"].(string)
			firstdata = strings.TrimSpace(firstdata)
			advertCode, _ := v["advertCode"].(string)
			advertCode = strings.TrimSpace(advertCode)
			if sceneCode == "" || firstdata == "" {
				continue
			}
			all[sceneCode] = append(all[sceneCode], &WxTplMsgCustom{
				FirstData:  firstdata,
				AdvertCode: advertCode,
			})
		}
	}
	for k, v := range all {
		if len(v) > 0 {
			w.All.Store(k, v)
		}
	}
	w.All.Range(func(key, value interface{}) bool {
		v, _ := value.([]*WxTplMsgCustom)
		for _, vv := range v {
			logger.Info("微信自定义模板消息 id", w.TplId, "场景代码", key, "广告位代码", vv.AdvertCode, "firstData", vv.FirstData)
		}
		return true
	})
	for _, v := range w.SceneCode {
		if len(all[v]) == 0 {
			msg := fmt.Sprintf("微信自定义模板消息 id %s 场景代码 %s 配置异常", w.TplId, v)
			if isVerify {
				log.Fatalln(msg)
			} else {
				logger.Error(msg)
			}
		}
	}

}

/* 随机获取自定义模板消息
 * @Param sceneCode 场景代码
 */
func (w *WxTplMsgCustoms) Get(sceneCode string) *WxTplMsgCustom {
	value, ok := w.All.Load(sceneCode)
	if !ok {
		return nil
	}
	values, _ := value.([]*WxTplMsgCustom)
	if len(values) == 0 {
		return nil
	}
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	return values[r.Intn(len(values))]
}