package dao

import (
	"encoding/json"
	"fmt"
	"service/app/mix/conf"
	"service/bizcommon/util"
	"service/dbstruct"
	"service/library/elasticsearchdb"
	"service/library/logger"
	"unicode"

	"service/api/consts"
	streameracctproto "service/api/proto/streamer_acct/proto"

	"github.com/gin-gonic/gin"
	"github.com/olivere/elastic/v7"
)

const (
	EsEnvProd  = 0
	EsEnvTest  = 1
	EsEnvLocal = 2
)

type ElasticSearch struct {
	clientMix *elastic.Client
}

func NewElasticSearch(cfg *conf.ConfigSt) (es *ElasticSearch, err error) {
	es = new(ElasticSearch)

	es.clientMix, err = elasticsearchdb.NewElasticSearchClient(cfg.ElasticSearch)
	if err != nil {
		logger.Error("NewElasticSearchClient fail, cfg: %v, err: %v", util.ToJson(cfg.ElasticSearch), err)
		return
	}

	return
}

const (
	IndexStreamerAcct = "streamer_acct"
	TypeStreamerAcct  = "_doc"
)

func (es *ElasticSearch) getIndexStreamerAcct() string {
	return IndexStreamerAcct
}

func (es *ElasticSearch) CreateStreamerAcct(ctx *gin.Context, streameraccts []*dbstruct.EsStreamerAcct) error {
	bulk := es.clientMix.Bulk().Index(es.getIndexStreamerAcct()).Refresh("true")
	for _, streameracct := range streameraccts {
		bulk.Add(elastic.NewBulkCreateRequest().Id(fmt.Sprint(streameracct.Mid)).Doc(streameracct))
	}
	_, err := bulk.Do(ctx)
	return err
}

func (es *ElasticSearch) UpdateStreamerAcct(ctx *gin.Context, streameracct *dbstruct.EsStreamerAcct) error {
	_, err := es.clientMix.Update().Index(es.getIndexStreamerAcct()).Id(fmt.Sprint(streameracct.Mid)).Doc(map[string]any{
		"name":   streameracct.Name,
		"pinyin": streameracct.PinYin,
		"ut":     streameracct.Ut,
	}).Do(ctx)
	return err
}

func (es *ElasticSearch) GetStreamerAcctListFuzzilyByName(ctx *gin.Context, req *streameracctproto.OpListFuzzilyByNameReq) (list []*dbstruct.EsStreamerAcct, err error) {

	list = make([]*dbstruct.EsStreamerAcct, 0)

	var nameClause elastic.Query
	var pinyinClause elastic.Query
	// 查询文字长度小于短语匹配的，进行Term匹配，否则进行短语匹配
	len := 0
	for _, char := range req.Name {
		if unicode.Is(unicode.Han, char) {
			len++
		} else {
			len++
		}
	}
	if len < consts.StreamerAcct_MatchPhraseLen {
		nameClause = elastic.NewTermQuery("name.short_char", req.Name)
		pinyinClause = elastic.NewTermQuery("pinyin.short_char", req.Name)
	} else {
		nameClause = elastic.NewMatchPhraseQuery("name.long_char", req.Name)
		pinyinClause = elastic.NewMatchPhraseQuery("pinyin.long_char", req.Name)
	}
	orClause := elastic.NewBoolQuery().Should(nameClause, pinyinClause)
	query := elastic.NewBoolQuery().Must()
	delFlagClause := elastic.NewMatchQuery("del_flag", 0)
	query.Must(orClause, delFlagClause)

	res, err := es.clientMix.Search(es.getIndexStreamerAcct()).Query(query).From(req.Offset).Size(req.Limit).Sort("ct", true).Do(ctx)
	if err != nil {
		logger.Error("Search %v fail, err: %v", IndexStreamerAcct, err)
		return
	}

	for _, hit := range res.Hits.Hits {
		streameracct := &dbstruct.EsStreamerAcct{}
		err = json.Unmarshal(hit.Source, streameracct)
		if err != nil {
			logger.Error("json Unmarshal fail, err: %v", err)
			return
		}
		list = append(list, streameracct)
	}

	return
}

func (es *ElasticSearch) GetStreamerAcctListFuzzilyByUserId(ctx *gin.Context, req *streameracctproto.OpListFuzzilyByUserIdReq) (list []*dbstruct.EsStreamerAcct, err error) {

	list = make([]*dbstruct.EsStreamerAcct, 0)

	var nameClause elastic.Query
	var userIdStringClause elastic.Query
	// 查询文字长度小于短语匹配的，进行Term匹配，否则进行短语匹配
	len := 0
	for _, char := range req.UserIdString {
		if unicode.Is(unicode.Han, char) {
			len++
		} else {
			len++
		}
	}
	if len < consts.StreamerAcct_MatchPhraseLen {
		nameClause = elastic.NewTermQuery("name.short_char", req.UserIdString)
		userIdStringClause = elastic.NewTermQuery("user_id_string.short_char", req.UserIdString)
	} else {
		nameClause = elastic.NewMatchPhraseQuery("name.long_char", req.UserIdString)
		userIdStringClause = elastic.NewMatchPhraseQuery("user_id_string.long_char", req.UserIdString)
	}
	orClause := elastic.NewBoolQuery().Should(nameClause, userIdStringClause)
	query := elastic.NewBoolQuery().Must()
	delFlagClause := elastic.NewMatchQuery("del_flag", 0)
	query.Must(orClause, delFlagClause)

	res, err := es.clientMix.Search(es.getIndexStreamerAcct()).Query(query).From(req.Offset).Size(req.Limit).Sort("ct", true).Do(ctx)
	if err != nil {
		logger.Error("Search %v fail, err: %v", IndexStreamerAcct, err)
		return
	}

	for _, hit := range res.Hits.Hits {
		streameracct := &dbstruct.EsStreamerAcct{}
		err = json.Unmarshal(hit.Source, streameracct)
		if err != nil {
			logger.Error("json Unmarshal fail, err: %v", err)
			return
		}
		list = append(list, streameracct)
	}

	return
}