# -*- coding: utf-8 -*-
# @Time : 2021/5/24 17:15
# @Author : XuJiakai
# @File : WinhcElasticSearchSDK
# @Software: PyCharm

from log import get_log
from elasticsearch.exceptions import NotFoundError

from sdk.WinhcAllClient import WinhcAllClient

log = get_log('WinhcElasticSearchSDK')


class WinhcElasticSearchSDK:
    def __init__(self, es_name):
        self.es = WinhcAllClient().get_es_client(es_name)

    def exists(self, index, doc_type, _id):
        return self.es.transport.perform_request("HEAD", "/" + index + "/" + doc_type + "/" + _id)

    def get(self, index, doc_type, _id):
        try:
            res = self.es.get(index=index, doc_type=doc_type, id=_id)['_source']
            return res
        except NotFoundError:
            return None

    def query_record_num(self, index, doc_type, dsl):
        dsl['size'] = 0
        return self.es.search(body=dsl, index=index, doc_type=doc_type)['hits']['total']
        pass

    def query(self, index, doc_type, dsl):
        res = self.es.search(body=dsl, index=index, doc_type=doc_type)['hits']['hits']
        if len(res) < 1:
            return []
        docs = []
        for i in range(len(res)):
            _id = res[i]['_id']
            doc = res[i]['_source']
            doc['_id'] = _id
            docs.append(doc)
        return docs

    def perform_get(self, url):
        return self.es.transport.perform_request(
            "GET",
            url,
        )
        pass

    def perform_post(self, url, body):
        return self.es.transport.perform_request(
            "POST",
            url,
            body=body
        )
        pass

    def scan(self, index, doc_type, query_dsl, func, scroll='5m', timeout='5m', size=500):
        queryData = self.es.search(
            index=index,
            doc_type=doc_type,
            scroll=scroll,
            timeout=timeout,
            size=size,
            body=query_dsl
        )
        hits = queryData.get("hits").get("hits")
        total = queryData["hits"]["total"]
        log.info(
            "total record : %s", total
        )

        log.info("Processing a batch of data: %s - %s", 0, size)
        func(hits)
        scroll_id = queryData["_scroll_id"]
        for i in range(int(total / size)):
            res = self.es.scroll(scroll_id=scroll_id, scroll=scroll)
            log.info("Processing a batch of data: %s - %s", (i + 1) * size, (i + 2) * size)
            func(res["hits"]["hits"])
        log.info("scan successful ! ")


def get_es_sdk(env="new"):
    return WinhcElasticSearchSDK(es_name=env)
    pass


def get_old_es():
    return WinhcElasticSearchSDK(es_name='old')


def get_new_es():
    return WinhcElasticSearchSDK(es_name='new')


if __name__ == '__main__':
    old_es = get_old_es()
    res = old_es.get("wenshu_detail3", "wenshu_detail_type", "1faa94669633b078966da8905c6aa9b5")
    print(res)
    pass