from util.log import *
from util.cases import *
from util.sql import *
import numpy as np
import random


class TDTestCase:

    updatecfgDict = {"maxTablesPerVnode":2 ,"minTablesPerVnode":2,"tableIncStepPerVnode":2 }

    def init(self, conn, logSql, replicaVar=1):
        tdLog.debug("start to execute %s" % __file__)
        tdSql.init(conn.cursor())
        self.vnode_disbutes = None
        self.ts = 1537146000000


    def check_min_functions(self, tbname , col_name):

        min_sql = f"select min({col_name}) from {tbname};"

        same_sql = f"select {col_name} from {tbname} where {col_name} is not null order by {col_name} asc limit 1"

        tdSql.query(min_sql)
        min_result = tdSql.queryResult

        tdSql.query(same_sql)
        same_result = tdSql.queryResult

        if min_result !=same_result:
            tdLog.exit(" min function work not as expected, sql : %s "% min_sql)
        else:
            tdLog.info(" min function work as expected, sql : %s "% min_sql)

    def prepare_datas_of_distribute(self, dbname="testdb"):

        # prepate datas for  20 tables distributed at different vgroups
        tdSql.execute(f"create database if not exists {dbname} keep 3650 duration 1000 vgroups 5")
        tdSql.execute(f" use {dbname} ")
        tdSql.execute(
            f'''create table {dbname}.stb1
            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
            tags (t0 timestamp, t1 int, t2 bigint, t3 smallint, t4 tinyint, t5 float, t6 double, t7 bool, t8 binary(16),t9 nchar(32))
            '''
        )

        for i in range(20):
            tdSql.execute(f'create table {dbname}.ct{i+1} using {dbname}.stb1 tags ( now(), {1*i}, {11111*i}, {111*i}, {1*i}, {1.11*i}, {11.11*i}, {i%2}, "binary{i}", "nchar{i}" )')

        for i in range(9):
            tdSql.execute(
                f"insert into {dbname}.ct1 values ( now()-{i*10}s, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
            )
            tdSql.execute(
                f"insert into {dbname}.ct4 values ( now()-{i*90}d, {1*i}, {11111*i}, {111*i}, {11*i}, {1.11*i}, {11.11*i}, {i%2}, 'binary{i}', 'nchar{i}', now()+{1*i}a )"
            )

        for i in range(1,21):
            if i ==1 or i == 4:
                continue
            else:
                tbname = f"{dbname}.ct{i}"
                for j in range(9):
                    tdSql.execute(
                f"insert into {tbname} values ( now()-{(i+j)*10}s, {1*(j+i)}, {11111*(j+i)}, {111*(j+i)}, {11*(j)}, {1.11*(j+i)}, {11.11*(j+i)}, {(j+i)%2}, 'binary{j}', 'nchar{j}', now()+{1*j}a )"
            )
        tdSql.execute(f"insert into {dbname}.ct1 values (now()-45s, 0, 0, 0, 0, 0, 0, 0, 'binary0', 'nchar0', now()+8a )")
        tdSql.execute(f"insert into {dbname}.ct1 values (now()+10s, 9, -99999, -999, -99, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")
        tdSql.execute(f"insert into {dbname}.ct1 values (now()+15s, 9, -99999, -999, -99, -9.99, NULL, 1, 'binary9', 'nchar9', now()+9a )")
        tdSql.execute(f"insert into {dbname}.ct1 values (now()+20s, 9, -99999, -999, NULL, -9.99, -99.99, 1, 'binary9', 'nchar9', now()+9a )")

        tdSql.execute(f"insert into {dbname}.ct4 values (now()-810d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
        tdSql.execute(f"insert into {dbname}.ct4 values (now()-400d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL ) ")
        tdSql.execute(f"insert into {dbname}.ct4 values (now()+90d, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL  ) ")

        tdLog.info(" prepare data for distributed_aggregate done! ")

    def check_distribute_datas(self, dbname="testdb"):
        # get vgroup_ids of all
        tdSql.query(f"show {dbname}.vgroups ")
        vgroups = tdSql.queryResult

        vnode_tables={}

        for vgroup_id in vgroups:
            vnode_tables[vgroup_id[0]]=[]

        # check sub_table of per vnode ,make sure sub_table has been distributed
        tdSql.query(f"select * from information_schema.ins_tables where db_name = '{dbname}' and table_name like 'ct%'")
        table_names = tdSql.queryResult
        tablenames = []
        for table_name in table_names:
            vnode_tables[table_name[6]].append(table_name[0])
        self.vnode_disbutes = vnode_tables

        count = 0
        for k ,v in vnode_tables.items():
            if len(v)>=2:
                count+=1
        if count < 2:
            tdLog.exit(" the datas of all not satisfy sub_table has been distributed ")

    def check_min_distribute_diff_vnode(self,col_name, dbname="testdb"):

        vgroup_ids = []
        for k ,v in self.vnode_disbutes.items():
            if len(v)>=2:
                vgroup_ids.append(k)

        distribute_tbnames = []

        for vgroup_id in vgroup_ids:
            vnode_tables = self.vnode_disbutes[vgroup_id]
            distribute_tbnames.append(random.sample(vnode_tables,1)[0])
        tbname_ins = ""
        for tbname in distribute_tbnames:
            tbname_ins += "'%s' ,"%tbname

        tbname_filters = tbname_ins[:-1]

        min_sql = f"select min({col_name}) from {dbname}.stb1 where tbname in ({tbname_filters});"

        same_sql = f"select {col_name} from {dbname}.stb1 where tbname in ({tbname_filters}) and {col_name} is not null order by {col_name} asc limit 1"

        tdSql.query(min_sql)
        min_result = tdSql.queryResult

        tdSql.query(same_sql)
        same_result = tdSql.queryResult

        if min_result !=same_result:
            tdLog.exit(" min function work not as expected, sql : %s "% min_sql)
        else:
            tdLog.info(" min function work as expected, sql : %s "% min_sql)

    def check_min_status(self, dbname="testdb"):
        # check min function work status

        tdSql.query(f"show {dbname}.tables like 'ct%'")
        table_names = tdSql.queryResult
        tablenames = []
        for table_name in table_names:
            tablenames.append(f"{dbname}.{table_name[0]}")

        tdSql.query(f"desc {dbname}.stb1")
        col_names = tdSql.queryResult

        colnames = []
        for col_name in col_names:
            if col_name[1] in ["INT" ,"BIGINT" ,"SMALLINT" ,"TINYINT" , "FLOAT" ,"DOUBLE"]:
                colnames.append(col_name[0])

        for tablename in tablenames:
            for colname in colnames:
                self.check_min_functions(tablename,colname)

        # check min function for different vnode

        for colname in colnames:
            if colname.startswith("c"):
                self.check_min_distribute_diff_vnode(colname, dbname)
            else:
                # self.check_min_distribute_diff_vnode(colname, dbname) # bug for tag
                pass

    def distribute_agg_query(self, dbname="testdb"):
        # basic filter
        tdSql.query(f"select min(c1) from {dbname}.stb1 where c1 is null")
        tdSql.checkRows(1)

        tdSql.query(f"select min(c1) from {dbname}.stb1 where t1=1")
        tdSql.checkData(0,0,2)

        tdSql.query(f"select min(c1+c2) from {dbname}.stb1 where c1 =1 ")
        tdSql.checkData(0,0,11112.000000000)

        tdSql.query(f"select min(c1) from {dbname}.stb1 where tbname=\"ct2\"")
        tdSql.checkData(0, 0, 2)

        tdSql.query(f"select min(c1) from {dbname}.stb1 partition by tbname")
        tdSql.checkRows(20)

        tdSql.query(f"select min(c1) from {dbname}.stb1 where t1> 4  partition by tbname")
        tdSql.checkRows(15)

        # union all
        tdSql.query(f"select min(c1) from {dbname}.stb1 union all select min(c1) from {dbname}.stb1 ")
        tdSql.checkRows(2)
        tdSql.checkData(0, 0, 0)

        # join

        tdSql.execute(" create database if not exists db ")
        tdSql.execute(" use db ")
        tdSql.execute(" create stable db.st (ts timestamp , c1 int ,c2 float) tags(t1 int) ")
        tdSql.execute(" create table db.tb1 using db.st tags(1) ")
        tdSql.execute(" create table db.tb2 using db.st tags(2) ")


        for i in range(10):
            ts = i*10 + self.ts
            tdSql.execute(f" insert into db.tb1 values({ts},{i},{i}.0)")
            tdSql.execute(f" insert into db.tb2 values({ts},{i},{i}.0)")

        tdSql.query(f"select min(tb1.c1), tb2.c2 from db.tb1 tb1, db.tb2 tb2 where tb1.ts=tb2.ts")
        tdSql.checkRows(1)
        tdSql.checkData(0,0,0)
        tdSql.checkData(0,0,0.00000)

        # group by
        tdSql.execute(f"use {dbname} ")
        tdSql.query(f"select min(c1),c1  from {dbname}.stb1 group by t1 ")
        tdSql.checkRows(20)
        tdSql.query(f"select min(c1),c1  from {dbname}.stb1 group by c1 ")
        tdSql.checkRows(30)
        tdSql.query(f"select min(c1),c2  from {dbname}.stb1 group by c2 ")
        tdSql.checkRows(31)

        # selective common cols of datas
        tdSql.query(f"select min(c1),c2,c3,c5 from {dbname}.stb1")
        tdSql.checkRows(1)
        tdSql.checkData(0,0,0)
        tdSql.checkData(0,1,0)
        tdSql.checkData(0,2,0)
        tdSql.checkData(0,3,0)

        tdSql.query(f"select min(c1),t1,c2,t3 from {dbname}.stb1 where c1 > 5")
        tdSql.checkRows(1)
        tdSql.checkData(0,0,6)
        tdSql.checkData(0,2,66666)

        tdSql.query(f"select min(c1),ceil(t1),pow(c2,1)+2,abs(t3) from {dbname}.stb1 where c1 > 12")
        tdSql.checkRows(1)
        tdSql.checkData(0,0,13)
        tdSql.checkData(0,2,144445.000000000)

        # partition by tbname or partition by tag
        tdSql.query(f"select min(c1),tbname from {dbname}.stb1 partition by tbname")
        query_data = tdSql.queryResult

        for row in query_data:
            tbname = f"{dbname}.{row[1]}"
            tdSql.query(f"select min(c1) from %s "%tbname)
            tdSql.checkData(0,0,row[0])

        tdSql.query(f"select min(c1),tbname from {dbname}.stb1 partition by t1")
        query_data = tdSql.queryResult

        for row in query_data:
            tbname = f"{dbname}.{row[1]}"
            tdSql.query(f"select min(c1) from %s "%tbname)
            tdSql.checkData(0,0,row[0])

        # nest query for support min
        tdSql.query(f"select abs(c2+2)+1 from (select min(c1) c2  from {dbname}.stb1)")
        tdSql.checkData(0,0,3.000000000)
        tdSql.query(f"select min(c1+2)+1  as c2 from (select ts ,c1 ,c2  from {dbname}.stb1)")
        tdSql.checkData(0,0,3.000000000)
        tdSql.query(f"select min(a+2)+1  as c2 from (select ts ,abs(c1) a ,c2  from {dbname}.stb1)")
        tdSql.checkData(0,0,3.000000000)

        # mixup with other functions
        tdSql.query(f"select max(c1),count(c1),last(c2,c3) from {dbname}.stb1")
        tdSql.checkData(0,0,28)
        tdSql.checkData(0,1,184)
        tdSql.checkData(0,2,-99999)
        tdSql.checkData(0,3,-999)

    def run(self):

        self.prepare_datas_of_distribute()
        self.check_distribute_datas()
        self.check_min_status()
        self.distribute_agg_query()


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

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