###################################################################
#           Copyright (c) 2016 by TAOS Technologies, Inc.
#                     All rights reserved.
#
#  This file is proprietary and confidential to TAOS Technologies.
#  No part of this file may be reproduced, stored, transmitted,
#  disclosed or used in any form or by any means other than as
#  expressly provided by the written permission from Jianhui Tao
#
###################################################################

# -*- coding: utf-8 -*-

import sys
import subprocess
import random
import math
import numpy as np
import inspect
import re

from util.log import *
from util.cases import *
from util.sql import *
from util.dnodes import *


class TDTestCase:
    def init(self, conn, logSql):
        tdLog.debug("start to execute %s" % __file__)
        tdSql.init(conn.cursor())

    def csum_query_form(self, col="c1",  alias="", table_expr="t1", condition=""):

        '''
        csum function:
        :param col:         string, column name, required parameters;
        :param alias:       string, result column another name，or add other funtion;
        :param table_expr:  string or expression, data source（eg,table/stable name, result set）, required parameters;
        :param condition:   expression；
        :param args:        other funtions,like: ', last(col)',or give result column another name, like 'c2'
        :return:            csum query statement,default: select csum(c1) from t1
        '''

        return f"select csum({col}) {alias} from {table_expr} {condition}"

    def checkcsum(self,col="c1", alias="", table_expr="t1", condition="" ):
        line = sys._getframe().f_back.f_lineno
        pre_sql = self.csum_query_form(
            col=col, table_expr=table_expr, condition=condition
        ).replace("csum", "count")
        tdSql.query(pre_sql)

        if tdSql.queryRows == 0:
            tdSql.query(self.csum_query_form(
                col=col, alias=alias, table_expr=table_expr, condition=condition
            ))
            print(f"case in {line}: ", end='')
            tdSql.checkRows(0)
            return

        if "order by tbname" in condition:
            tdSql.error(self.csum_query_form(
                col=col, alias=alias, table_expr=table_expr, condition=condition
            ))
            return

        if "group" in condition:

            tb_condition = condition.split("group by")[1].split(" ")[1]
            tdSql.query(f"select distinct {tb_condition} from {table_expr}")
            query_result = tdSql.queryResult
            query_rows = tdSql.queryRows
            clear_condition = re.sub('order by [0-9a-z]*|slimit [0-9]*|soffset [0-9]*', "", condition)

            pre_row = 0
            for i in range(query_rows):
                group_name = query_result[i][0]
                if "where" in clear_condition:
                    pre_condition = re.sub('group by [0-9a-z]*', f"{tb_condition}='{group_name}'", clear_condition)
                else:
                    pre_condition = "where " + re.sub('group by [0-9a-z]*',f"{tb_condition}='{group_name}'", clear_condition)

                tdSql.query(f"select {col} {alias} from {table_expr} {pre_condition}")
                pre_data = np.array(tdSql.queryResult)[np.array(tdSql.queryResult) != None]
                if (platform.system().lower() == 'windows' and pre_data.dtype == 'int32'):
                    pre_data = np.array(pre_data, dtype = 'int64')
                print("data is ", pre_data)
                pre_csum = np.cumsum(pre_data)
                tdSql.query(self.csum_query_form(
                    col=col, alias=alias, table_expr=table_expr, condition=condition
                ))
                for j in range(len(pre_csum)):
                    print(f"case in {line}:", end='')
                    tdSql.checkData(pre_row+j, 1, pre_csum[j])
                pre_row += len(pre_csum)
            return
        elif "union" in condition:
            union_sql_0 = self.csum_query_form(
                col=col, alias=alias, table_expr=table_expr, condition=condition
            ).split("union all")[0]

            union_sql_1 = self.csum_query_form(
                col=col, alias=alias, table_expr=table_expr, condition=condition
            ).split("union all")[1]

            tdSql.query(union_sql_0)
            union_csum_0 = tdSql.queryResult
            row_union_0 = tdSql.queryRows

            tdSql.query(union_sql_1)
            union_csum_1 = tdSql.queryResult

            tdSql.query(self.csum_query_form(
                col=col, alias=alias, table_expr=table_expr, condition=condition
            ))
            for i in range(tdSql.queryRows):
                print(f"case in {line}: ", end='')
                if i < row_union_0:
                    tdSql.checkData(i, 0, union_csum_0[i][0])
                else:
                    tdSql.checkData(i, 0, union_csum_1[i-row_union_0][0])
            return

        else:
            tdSql.query(f"select {col} from {table_expr} {re.sub('limit [0-9]*|offset [0-9]*','',condition)}")
            offset_val = condition.split("offset")[1].split(" ")[1] if "offset" in condition else 0
            pre_result = np.array(tdSql.queryResult)[np.array(tdSql.queryResult) != None]
            if (platform.system().lower() == 'windows' and pre_result.dtype == 'int32'):
                pre_result = np.array(pre_result, dtype = 'int64')
            pre_csum = np.cumsum(pre_result)[offset_val:]
            tdSql.query(self.csum_query_form(
                col=col, alias=alias, table_expr=table_expr, condition=condition
            ))

            for i in range(tdSql.queryRows):
                print(f"case in {line}: ", end='')
                if pre_csum[i] >1.7e+308 or pre_csum[i] < -1.7e+308:
                    continue
                else:
                    tdSql.checkData(i, 0, pre_csum[i])

        pass

    def csum_current_query(self) :

        # table schema :ts timestamp, c1 int, c2 float, c3 timestamp, c4 binary(16), c5 double, c6 bool
        #                 c7 bigint, c8 smallint, c9 tinyint, c10 nchar(16)

        # case1～6： numeric col:int/bigint/tinyint/smallint/float/double
        self.checkcsum()
        case2 =  {"col": "c2"}
        self.checkcsum(**case2)
        case3 =  {"col": "c5"}
        self.checkcsum(**case3)
        case4 =  {"col": "c7"}
        self.checkcsum(**case4)
        case5 =  {"col": "c8"}
        self.checkcsum(**case5)
        case6 =  {"col": "c9"}
        self.checkcsum(**case6)

        # case7~8: nested query
        # case7 = {"table_expr": "(select c1 from stb1)"}
        # self.checkcsum(**case7)
        # case8 = {"table_expr": "(select csum(c1) c1 from stb1 group by tbname)"}
        # self.checkcsum(**case8)

        # case9~10: mix with tbname/ts/tag/col
        # case9 = {"alias": ", tbname"}
        # self.checkcsum(**case9)
        # case10 = {"alias": ", _c0"}
        # self.checkcsum(**case10)
        # case11 = {"alias": ", st1"}
        # self.checkcsum(**case11)
        # case12 = {"alias": ", c1"}
        # self.checkcsum(**case12)

        # case13~15: with  single condition
        case13 = {"condition": "where c1 <= 10"}
        self.checkcsum(**case13)
        case14 = {"condition": "where c6 in (0, 1)"}
        self.checkcsum(**case14)
        case15 = {"condition": "where c1 between 1 and 10"}
        self.checkcsum(**case15)

        # case16:  with multi-condition
        case16 = {"condition": "where c6=1 or c6 =0"}
        self.checkcsum(**case16)

        # case17: only support normal table join
        case17 = {
            "col": "t1.c1",
            "table_expr": "t1, t2",
            "condition": "where t1.ts=t2.ts"
        }
        self.checkcsum(**case17)
        # case18~19: with group by
        # case18 = {
        #     "table_expr": "t1",
        #     "condition": "group by c6"
        # }
        # self.checkcsum(**case18)
        # case19 = {
        #     "table_expr": "stb1",
        #     "condition": "partition by tbname"  # partition by tbname
        # }
        # self.checkcsum(**case19)

        # # case20~21: with order by
        # case20 = {"condition": "order by ts"}
        # self.checkcsum(**case20)

        # # case22: with union
        # case22 = {
        #     "condition": "union all select csum(c1) from t2"
        # }
        # self.checkcsum(**case22)

        # case23: with limit/slimit
        case23 = {
            "condition": "limit 1"
        }
        self.checkcsum(**case23)
        # case24 = {
        #     "table_expr": "stb1",
        #     "condition": "group by tbname slimit 1 soffset 1"
        # }
        # self.checkcsum(**case24)

        pass

    def csum_error_query(self) -> None :
        # unusual test
        #
        # table schema :ts timestamp, c1 int, c2 float, c3 timestamp, c4 binary(16), c5 double, c6 bool
        #                 c7 bigint, c8 smallint, c9 tinyint, c10 nchar(16)
        #
        # form test
        tdSql.error(self.csum_query_form(col=""))   # no col
        tdSql.error("csum(c1) from stb1")           # no select
        tdSql.error("select csum from t1")          # no csum condition
        tdSql.error("select csum c1 from t1")       # no brackets
        tdSql.error("select csum(c1)   t1")         # no from
        tdSql.error("select csum( c1 )  from ")     # no table_expr
        # tdSql.error(self.csum_query_form(col="st1"))    # tag col
        # tdSql.error(self.csum_query_form(col=1))        # col is a value
        tdSql.error(self.csum_query_form(col="'c1'"))   # col is a string
        tdSql.error(self.csum_query_form(col=None))     # col is NULL 1
        tdSql.error(self.csum_query_form(col="NULL"))   # col is NULL 2
        tdSql.error(self.csum_query_form(col='""'))     # col is ""
        tdSql.error(self.csum_query_form(col='c%'))     # col is spercial char 1
        tdSql.error(self.csum_query_form(col='c_'))     # col is spercial char 2
        tdSql.error(self.csum_query_form(col='c.'))     # col is spercial char 3
        tdSql.error(self.csum_query_form(col='c3'))     # timestamp col
        tdSql.error(self.csum_query_form(col='ts'))     # Primary key
        tdSql.error(self.csum_query_form(col='avg(c1)'))    # expr col
        tdSql.error(self.csum_query_form(col='c6'))     # bool col
        tdSql.error(self.csum_query_form(col='c4'))     # binary col
        tdSql.error(self.csum_query_form(col='c10'))    # nachr col
        tdSql.error(self.csum_query_form(col='c10'))    # not table_expr col
        tdSql.error(self.csum_query_form(col='t1'))     # tbname
        tdSql.error(self.csum_query_form(col='stb1'))   # stbname
        tdSql.error(self.csum_query_form(col='db'))     # datbasename
        tdSql.error(self.csum_query_form(col=True))     # col is BOOL 1
        tdSql.error(self.csum_query_form(col='True'))   # col is BOOL 2
        tdSql.error(self.csum_query_form(col='*'))      # col is all col
        tdSql.error("select csum[c1] from t1")          # sql form error 1
        tdSql.error("select csum{c1} from t1")          # sql form error 2
        tdSql.error(self.csum_query_form(col="[c1]"))   # sql form error 3
        # tdSql.error(self.csum_query_form(col="c1, c2")) # sql form error 3
        # tdSql.error(self.csum_query_form(col="c1, 2"))  # sql form error 3
        tdSql.error(self.csum_query_form(alias=", count(c1)"))  # mix with aggregate function 1
        tdSql.error(self.csum_query_form(alias=", avg(c1)"))    # mix with aggregate function 2
        tdSql.error(self.csum_query_form(alias=", min(c1)"))    # mix with select function 1
        tdSql.error(self.csum_query_form(alias=", top(c1, 5)")) # mix with select function 2
        tdSql.error(self.csum_query_form(alias=", spread(c1)")) # mix with calculation function  1
        tdSql.error(self.csum_query_form(alias=", diff(c1)"))   # mix with calculation function  2
        # tdSql.error(self.csum_query_form(alias=" + 2"))         # mix with arithmetic 1
        tdSql.error(self.csum_query_form(alias=" + avg(c1)"))   # mix with arithmetic 2
        tdSql.error(self.csum_query_form(alias=", c2"))         # mix with other 1
        # tdSql.error(self.csum_query_form(table_expr="stb1"))    # select stb directly
        stb_join = {
            "col": "stb1.c1",
            "table_expr": "stb1, stb2",
            "condition": "where stb1.ts=stb2.ts and stb1.st1=stb2.st2 order by stb1.ts"
        }
        tdSql.error(self.csum_query_form(**stb_join))           # stb join
        interval_sql = {
            "condition": "where ts>0 and ts < now interval(1h) fill(next)"
        }
        tdSql.error(self.csum_query_form(**interval_sql))       # interval
        group_normal_col = {
            "table_expr": "t1",
            "condition": "group by c6"
        }
        tdSql.error(self.csum_query_form(**group_normal_col))       # group by normal col
        slimit_soffset_sql = {
            "table_expr": "stb1",
            "condition": "group by tbname slimit 1 soffset 1"
        }
        # tdSql.error(self.csum_query_form(**slimit_soffset_sql))
        order_by_tbname_sql = {
            "table_expr": "stb1",
            "condition": "group by tbname order by tbname"
        }
        tdSql.error(self.csum_query_form(**order_by_tbname_sql))

        pass

    def csum_test_data(self, tbnum:int, data_row:int, basetime:int) -> None :
        for i in range(tbnum):
            for j in range(data_row):
                tdSql.execute(
                    f"insert into t{i} values ("
                    f"{basetime + (j+1)*10}, {random.randint(-200, -1)}, {random.uniform(200, -1)}, {basetime + random.randint(-200, -1)}, "
                    f"'binary_{j}', {random.uniform(-200, -1)}, {random.choice([0,1])}, {random.randint(-200,-1)}, "
                    f"{random.randint(-200, -1)}, {random.randint(-127, -1)}, 'nchar_{j}' )"
                )

                tdSql.execute(
                    f"insert into t{i} values ("
                    f"{basetime - (j+1) * 10}, {random.randint(1, 200)}, {random.uniform(1, 200)}, {basetime - random.randint(1, 200)}, "
                    f"'binary_{j}_1', {random.uniform(1, 200)}, {random.choice([0, 1])}, {random.randint(1,200)}, "
                    f"{random.randint(1,200)}, {random.randint(1,127)}, 'nchar_{j}_1' )"
                )
                tdSql.execute(
                    f"insert into tt{i} values ( {basetime-(j+1) * 10}, {random.randint(1, 200)} )"
                )

        pass

    def csum_test_table(self,tbnum: int) -> None :
        tdSql.execute("drop database if exists db")
        tdSql.execute("create database  if not exists db keep 3650")
        tdSql.execute("use db")

        tdSql.execute(
            "create stable db.stb1 (\
                ts timestamp, c1 int, c2 float, c3 timestamp, c4 binary(16), c5 double, c6 bool, \
                c7 bigint, c8 smallint, c9 tinyint, c10 nchar(16)\
                ) \
            tags(st1 int)"
        )
        tdSql.execute(
            "create stable db.stb2 (ts timestamp, c1 int) tags(st2 int)"
        )
        for i in range(tbnum):
            tdSql.execute(f"create table t{i} using stb1 tags({i})")
            tdSql.execute(f"create table tt{i} using stb2 tags({i})")

        pass

    def csum_test_run(self) :
        tdLog.printNoPrefix("==========TD-10594==========")
        tbnum = 10
        nowtime = int(round(time.time() * 1000))
        per_table_rows = 2
        self.csum_test_table(tbnum)

        tdLog.printNoPrefix("######## no data test:")
        self.csum_current_query()
        self.csum_error_query()

        tdLog.printNoPrefix("######## insert only NULL test:")
        for i in range(tbnum):
            tdSql.execute(f"insert into t{i}(ts) values ({nowtime - 5})")
            tdSql.execute(f"insert into t{i}(ts) values ({nowtime + 5})")
        self.csum_current_query()
        self.csum_error_query()

        tdLog.printNoPrefix("######## insert data in the range near the max(bigint/double):")
        self.csum_test_table(tbnum)
        tdSql.execute(f"insert into t1(ts, c1,c2,c5,c7) values "
                      f"({nowtime - (per_table_rows + 1) * 10}, {2**31-1}, {3.4*10**38}, {1.7*10**308}, {2**63-1})")
        tdSql.execute(f"insert into t1(ts, c1,c2,c5,c7) values "
                      f"({nowtime - (per_table_rows + 2) * 10}, {2**31-1}, {3.4*10**38}, {1.7*10**308}, {2**63-1})")
        self.csum_current_query()
        self.csum_error_query()

        tdLog.printNoPrefix("######## insert data in the range near the min(bigint/double):")
        self.csum_test_table(tbnum)
        tdSql.execute(f"insert into t1(ts, c1,c2,c5,c7) values "
                      f"({nowtime - (per_table_rows + 1) * 10}, {1-2**31}, {-3.4*10**38}, {-1.7*10**308}, {1-2**63})")
        tdSql.execute(f"insert into t1(ts, c1,c2,c5,c7) values "
                      f"({nowtime - (per_table_rows + 2) * 10}, {1-2**31}, {-3.4*10**38}, {-1.7*10**308}, {512-2**63})")
        self.csum_current_query()
        self.csum_error_query()

        tdLog.printNoPrefix("######## insert data without NULL data test:")
        self.csum_test_table(tbnum)
        self.csum_test_data(tbnum, per_table_rows, nowtime)
        self.csum_current_query()
        self.csum_error_query()


        tdLog.printNoPrefix("######## insert data mix with NULL test:")
        for i in range(tbnum):
            tdSql.execute(f"insert into t{i}(ts) values ({nowtime})")
            tdSql.execute(f"insert into t{i}(ts) values ({nowtime-(per_table_rows+3)*10})")
            tdSql.execute(f"insert into t{i}(ts) values ({nowtime+(per_table_rows+3)*10})")
        self.csum_current_query()
        self.csum_error_query()



        tdLog.printNoPrefix("######## check after WAL test:")
        tdSql.query("show dnodes")
        index = tdSql.getData(0, 0)
        tdDnodes.stop(index)
        tdDnodes.start(index)
        self.csum_current_query()
        self.csum_error_query()
        tdSql.query("select csum(1) from t1 ")
        tdSql.checkRows(7)
        tdSql.checkData(0,0,1)
        tdSql.checkData(1,0,2)
        tdSql.checkData(2,0,3)
        tdSql.checkData(3,0,4)
        tdSql.query("select csum(abs(c1))+2 from t1 ")
        tdSql.checkRows(4)

    def run(self):
        import traceback
        try:
            # run in  develop branch
            self.csum_test_run()
            pass
        except Exception as e:
            traceback.print_exc()
            raise e



    def stop(self):
        tdSql.close()
        tdLog.success("%s successfully executed" % __file__)

tdCases.addWindows(__file__, TDTestCase())
tdCases.addLinux(__file__, TDTestCase())