# author : wenzhouwww
from ssl import ALERT_DESCRIPTION_CERTIFICATE_UNOBTAINABLE
import taos
import sys
import time
import os

from util.log import *
from util.sql import *
from util.cases import *
from util.dnodes import TDDnodes
from util.dnodes import TDDnode
from util.cluster import *

import datetime
import inspect
import time
import socket
import subprocess
import threading
sys.path.append(os.path.dirname(__file__))

class TDTestCase:
    def init(self, conn, logSql, replicaVar=1):
        self.replicaVar = int(replicaVar)
        tdLog.debug(f"start to excute {__file__}")
        tdSql.init(conn.cursor())
        self.host = socket.gethostname()
        self.mnode_list = {}
        self.dnode_list = {}
        self.ts = 1483200000000
        self.ts_step =1000
        self.db_name ='testdb'
        self.replica = 3
        self.vgroups = 1
        self.tb_nums = 10
        self.row_nums = 100
        self.stop_dnode_id = None
        self.loop_restart_times = 2
        self.current_thread = None
        self.max_restart_time = 30
        self.try_check_times = 10

    def getBuildPath(self):
        selfPath = os.path.dirname(os.path.realpath(__file__))
        if ("community" in selfPath):
            projPath = selfPath[:selfPath.find("community")]
        else:
            projPath = selfPath[:selfPath.find("tests")]

        for root, dirs, files in os.walk(projPath):
            if ("taosd" in files):
                rootRealPath = os.path.dirname(os.path.realpath(root))
                if ("packaging" not in rootRealPath):
                    buildPath = root[:len(root) - len("/build/bin")]
                    break
        return buildPath

    def check_setup_cluster_status(self):
        tdSql.query("select * from information_schema.ins_mnodes")
        for mnode in tdSql.queryResult:
            name = mnode[1]
            info = mnode
            self.mnode_list[name] = info

        tdSql.query("select * from information_schema.ins_dnodes")
        for dnode in tdSql.queryResult:
            name = dnode[1]
            info = dnode
            self.dnode_list[name] = info

        count = 0
        is_leader = False
        mnode_name = ''
        for k,v in self.mnode_list.items():
            count +=1
            # only for 1 mnode
            mnode_name = k

            if v[2] =='leader':
                is_leader=True

        if count==1 and is_leader:
            tdLog.notice("===== depoly cluster success with 1 mnode as leader =====")
        else:
            tdLog.exit("===== depoly cluster fail with 1 mnode as leader =====")

        for k ,v in self.dnode_list.items():
            if k == mnode_name:
                if v[3]==0:
                    tdLog.notice("===== depoly cluster mnode only success at {} , support_vnodes is {} ".format(mnode_name,v[3]))
                else:
                    tdLog.exit("===== depoly cluster mnode only fail at {} , support_vnodes is {} ".format(mnode_name,v[3]))
            else:
                continue

    def create_db_check_vgroups(self):

        tdSql.execute("drop database if exists test")
        tdSql.execute("create database if not exists test replica 1 duration 300")
        tdSql.execute("use test")
        tdSql.execute(
        '''create table 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 (t1 int)
        '''
        )
        tdSql.execute(
            '''
            create table t1
            (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(16),c9 nchar(32), c10 timestamp)
            '''
        )

        for i in range(5):
            tdSql.execute("create table sub_tb_{} using stb1 tags({})".format(i,i))
        tdSql.query("show stables")
        tdSql.checkRows(1)
        tdSql.query("show tables")
        tdSql.checkRows(6)

        tdSql.query("show test.vgroups;")
        vgroups_infos = {}  # key is id: value is info list
        for vgroup_info in tdSql.queryResult:
            vgroup_id = vgroup_info[0]
            tmp_list = []
            for role in vgroup_info[3:-4]:
                if role in ['leader','leader*','follower']:
                    tmp_list.append(role)
            vgroups_infos[vgroup_id]=tmp_list

        for k , v in vgroups_infos.items():
            if len(v) ==1 and v[0] in ['leader', 'leader*']:
                tdLog.notice(" === create database replica only 1 role leader  check success of vgroup_id {} ======".format(k))
            else:
                tdLog.exit(" === create database replica only 1 role leader  check fail of vgroup_id {} ======".format(k))

    def create_database(self, dbname, replica_num ,vgroup_nums ):
        drop_db_sql = "drop database if exists {}".format(dbname)
        create_db_sql = "create database {} replica {} vgroups {}".format(dbname,replica_num,vgroup_nums)

        tdLog.notice(" ==== create database {} and insert rows begin =====".format(dbname))
        tdSql.execute(drop_db_sql)
        tdSql.execute(create_db_sql)
        tdSql.execute("use {}".format(dbname))

    def create_stable_insert_datas(self,dbname ,stablename , tb_nums , row_nums):
        tdSql.execute("use {}".format(dbname))
        tdSql.execute(
        '''create table {}
        (ts timestamp, c1 int, c2 bigint, c3 smallint, c4 tinyint, c5 float, c6 double, c7 bool, c8 binary(32),c9 nchar(32), c10 timestamp)
        tags (t1 int)
        '''.format(stablename)
        )

        for i in range(tb_nums):
            sub_tbname = "sub_{}_{}".format(stablename,i)
            tdSql.execute("create table {} using {} tags({})".format(sub_tbname, stablename ,i))
            # insert datas about new database

            for row_num in range(row_nums):
                ts = self.ts + self.ts_step*row_num
                tdSql.execute(f"insert into {sub_tbname} values ({ts}, {row_num} ,{row_num}, 10 ,1 ,{row_num} ,{row_num},true,'bin_{row_num}','nchar_{row_num}',now) ")

        tdLog.notice(" ==== stable {} insert rows execute end =====".format(stablename))

    def append_rows_of_exists_tables(self,dbname ,stablename , tbname , append_nums ):

        tdSql.execute("use {}".format(dbname))

        for row_num in range(append_nums):
            tdSql.execute(f"insert into {tbname} values (now, {row_num} ,{row_num}, 10 ,1 ,{row_num} ,{row_num},true,'bin_{row_num}','nchar_{row_num}',now) ")
            # print(f"insert into {tbname} values (now, {row_num} ,{row_num}, 10 ,1 ,{row_num} ,{row_num},true,'bin_{row_num}','nchar_{row_num}',now) ")
        tdLog.notice(" ==== append new rows of table {} belongs to  stable {} execute end =====".format(tbname,stablename))
        os.system("taos -s 'select count(*) from {}.{}';".format(dbname,stablename))

    def check_insert_rows(self, dbname, stablename , tb_nums , row_nums, append_rows):

        tdSql.execute("use {}".format(dbname))

        tdSql.query("select count(*) from {}.{}".format(dbname,stablename))

        while not tdSql.queryResult:
            time.sleep(0.1)
            tdSql.query("select count(*) from {}.{}".format(dbname,stablename))

        status_OK = self.mycheckData("select count(*) from {}.{}".format(dbname,stablename) ,0 , 0 , tb_nums*row_nums+append_rows)

        count = 0
        while not status_OK :
            if count > self.try_check_times:
                os.system("taos -s ' show {}.vgroups; '".format(dbname))
                #tdLog.exit(" ==== check insert rows failed  after {}  try check {} times  of database {}".format(count , self.try_check_times ,dbname))
                break
            time.sleep(0.1)
            tdSql.query("select count(*) from {}.{}".format(dbname,stablename))
            while not tdSql.queryResult:
                time.sleep(0.1)
                tdSql.query("select count(*) from {}.{}".format(dbname,stablename))
            status_OK = self.mycheckData("select count(*) from {}.{}".format(dbname,stablename) ,0 , 0 , tb_nums*row_nums+append_rows)
            tdLog.debug(" ==== check insert rows first failed , this is {}_th retry check rows of database {}".format(count , dbname))
            count += 1


        tdSql.query("select distinct tbname from {}.{}".format(dbname,stablename))
        while not tdSql.queryResult:
            time.sleep(0.1)
            tdSql.query("select distinct tbname from {}.{}".format(dbname,stablename))
        status_OK = self.mycheckRows("select distinct tbname from {}.{}".format(dbname,stablename) ,tb_nums)
        count = 0
        while not status_OK :
            if count > self.try_check_times:
                os.system("taos -s ' show {}.vgroups;'".format(dbname))
                #tdLog.exit(" ==== check insert rows failed  after {}  try check {} times  of database {}".format(count , self.try_check_times ,dbname))
                break
            time.sleep(0.1)
            tdSql.query("select distinct tbname from {}.{}".format(dbname,stablename))
            while not tdSql.queryResult:
                time.sleep(0.1)
                tdSql.query("select distinct tbname from {}.{}".format(dbname,stablename))
            status_OK = self.mycheckRows("select distinct tbname from {}.{}".format(dbname,stablename) ,tb_nums)
            tdLog.debug(" ==== check insert tbnames first failed , this is {}_th retry check tbnames of database {}".format(count , dbname))
            count += 1

    
    def _get_stop_dnode_id(self,dbname ,dnode_role):
        tdSql.query("show {}.vgroups".format(dbname))
        vgroup_infos = tdSql.queryResult
        status = False
        for vgroup_info in vgroup_infos:
            if "error" not in vgroup_info:
                status = True
            else:
                status = False
        while status!=True :
            time.sleep(0.1)
            tdSql.query("show {}.vgroups".format(dbname))
            vgroup_infos = tdSql.queryResult
            for vgroup_info in vgroup_infos:
                if "error" not in vgroup_info:
                    status = True
                else:
                    status = False
            # print(status)
        for vgroup_info in vgroup_infos:
            leader_infos = vgroup_info[3:-4]
            # print(vgroup_info)
            for ind ,role in enumerate(leader_infos):
                if role == dnode_role:
                    # print(ind,leader_infos)
                    self.stop_dnode_id = leader_infos[ind-1]
                    break

        return self.stop_dnode_id

    def wait_stop_dnode_OK(self ,newTdSql):
    

        def _get_status():
            # newTdSql=tdCom.newTdSql()

            status =  ""
            newTdSql.query("select * from information_schema.ins_dnodes")
            dnode_infos = newTdSql.queryResult
            for dnode_info in dnode_infos:
                id = dnode_info[0]
                dnode_status = dnode_info[4]
                if id == self.stop_dnode_id:
                    status = dnode_status
                    break
            return status

        status = _get_status()
        while status !="offline":
            time.sleep(0.1)
            status = _get_status()
            # tdLog.notice("==== stop dnode has not been stopped , endpoint is {}".format(self.stop_dnode))
        tdLog.notice("==== stop_dnode has stopped , id is {} ====".format(self.stop_dnode_id))


    def wait_start_dnode_OK(self ,newTdSql):
    
        def _get_status():
            # newTdSql=tdCom.newTdSql()
            status =  ""
            newTdSql.query("select * from information_schema.ins_dnodes")
            dnode_infos = newTdSql.queryResult
            for dnode_info in dnode_infos:
                id = dnode_info[0]
                dnode_status = dnode_info[4]
                if id == self.stop_dnode_id:
                    status = dnode_status
                    break
            return status

        status = _get_status()
        while status !="ready":
            time.sleep(0.1)
            status = _get_status()
            # tdLog.notice("==== stop dnode has not been stopped , endpoint is {}".format(self.stop_dnode))
        tdLog.notice("==== stop_dnode has restart , id is {} ====".format(self.stop_dnode_id))

    def _parse_datetime(self,timestr):
        try:
            return datetime.datetime.strptime(timestr, '%Y-%m-%d %H:%M:%S.%f')
        except ValueError:
            pass
        try:
            return datetime.datetime.strptime(timestr, '%Y-%m-%d %H:%M:%S')
        except ValueError:
            pass

    def mycheckRowCol(self, sql, row, col):
        caller = inspect.getframeinfo(inspect.stack()[2][0])
        if row < 0:
            args = (caller.filename, caller.lineno, sql, row)
            tdLog.exit("%s(%d) failed: sql:%s, row:%d is smaller than zero" % args)
        if col < 0:
            args = (caller.filename, caller.lineno, sql, row)
            tdLog.exit("%s(%d) failed: sql:%s, col:%d is smaller than zero" % args)
        if row > tdSql.queryRows:
            args = (caller.filename, caller.lineno, sql, row, tdSql.queryRows)
            tdLog.exit("%s(%d) failed: sql:%s, row:%d is larger than queryRows:%d" % args)
        if col > tdSql.queryCols:
            args = (caller.filename, caller.lineno, sql, col, tdSql.queryCols)
            tdLog.exit("%s(%d) failed: sql:%s, col:%d is larger than queryCols:%d" % args)

    def mycheckData(self, sql ,row, col, data):
        check_status = True
        self.mycheckRowCol(sql ,row, col)
        if tdSql.queryResult[row][col] != data:
            if tdSql.cursor.istype(col, "TIMESTAMP"):
                # suppose user want to check nanosecond timestamp if a longer data passed
                if (len(data) >= 28):
                    if pd.to_datetime(tdSql.queryResult[row][col]) == pd.to_datetime(data):
                        tdLog.info("sql:%s, row:%d col:%d data:%d == expect:%s" %
                            (sql, row, col, tdSql.queryResult[row][col], data))
                else:
                    if tdSql.queryResult[row][col] == self._parse_datetime(data):
                        tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%s" %
                            (sql, row, col, tdSql.queryResult[row][col], data))
                return

            if str(tdSql.queryResult[row][col]) == str(data):
                tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%s" %
                            (sql, row, col, tdSql.queryResult[row][col], data))
                return
            elif isinstance(data, float) and abs(tdSql.queryResult[row][col] - data) <= 0.000001:
                tdLog.info("sql:%s, row:%d col:%d data:%f == expect:%f" %
                            (sql, row, col, tdSql.queryResult[row][col], data))
                return
            else:
                caller = inspect.getframeinfo(inspect.stack()[1][0])
                args = (caller.filename, caller.lineno, sql, row, col, tdSql.queryResult[row][col], data)
                tdLog.info("%s(%d) failed: sql:%s row:%d col:%d data:%s != expect:%s" % args)

                check_status = False

        if data is None:
            tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%s" %
                       (sql, row, col, tdSql.queryResult[row][col], data))
        elif isinstance(data, str):
            tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%s" %
                       (sql, row, col, tdSql.queryResult[row][col], data))
        # elif isinstance(data, datetime.date):
        #     tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%s" %
        #                (sql, row, col, tdSql.queryResult[row][col], data))
        elif isinstance(data, float):
            tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%s" %
                       (sql, row, col, tdSql.queryResult[row][col], data))
        else:
            tdLog.info("sql:%s, row:%d col:%d data:%s == expect:%d" %
                       (sql, row, col, tdSql.queryResult[row][col], data))

        return check_status

    def mycheckRows(self, sql, expectRows):
        check_status = True
        if len(tdSql.queryResult) == expectRows:
            tdLog.info("sql:%s, queryRows:%d == expect:%d" % (sql, len(tdSql.queryResult), expectRows))
            return True
        else:
            caller = inspect.getframeinfo(inspect.stack()[1][0])
            args = (caller.filename, caller.lineno, sql, len(tdSql.queryResult), expectRows)
            tdLog.info("%s(%d) failed: sql:%s, queryRows:%d != expect:%d" % args)
            check_status = False
        return check_status

    def sync_run_case(self):
        # stop follower and insert datas , update tables and create new stables
        tdDnodes=cluster.dnodes
        newTdSql =  tdCom.newTdSql()
        for loop in range(self.loop_restart_times):
            db_name = "sync_db_{}".format(loop)
            stablename = 'stable_{}'.format(loop)
            self.create_database(dbname = db_name ,replica_num= self.replica  , vgroup_nums= 1)
            self.create_stable_insert_datas(dbname = db_name , stablename = stablename , tb_nums= 10 ,row_nums= 10 )

            self.stop_dnode_id = self._get_stop_dnode_id(db_name , "follower")
            

            # check rows of datas

            self.check_insert_rows(db_name ,stablename ,tb_nums=10 , row_nums= 10 ,append_rows=0)

            # begin stop dnode
            start = time.time()
            tdDnodes[self.stop_dnode_id-1].stoptaosd()

        
            self.wait_stop_dnode_OK(newTdSql)


            # append rows of stablename when dnode stop

            tbname = "sub_{}_{}".format(stablename , 0)
            tdLog.notice(" ==== begin  append rows of exists table {} when dnode {} offline ====".format(tbname , self.stop_dnode_id))
            self.append_rows_of_exists_tables(db_name ,stablename , tbname , 100 )
            tdLog.notice(" ==== check  append rows of exists table {} when dnode {} offline ====".format(tbname , self.stop_dnode_id))
            self.check_insert_rows(db_name ,stablename ,tb_nums=10 , row_nums= 10 ,append_rows=100)

            # create new stables
            tdLog.notice(" ==== create new stable {} when  dnode {} offline ====".format('new_stb1' , self.stop_dnode_id))
            self.create_stable_insert_datas(dbname = db_name , stablename = 'new_stb1' , tb_nums= 10 ,row_nums= 10 )
            tdLog.notice(" ==== check new stable {} when  dnode {} offline ====".format('new_stb1' , self.stop_dnode_id))
            self.check_insert_rows(db_name ,'new_stb1' ,tb_nums=10 , row_nums= 10 ,append_rows=0)

            # begin start dnode
            tdDnodes[self.stop_dnode_id-1].starttaosd()
            self.wait_start_dnode_OK(newTdSql)
            end = time.time()
            time_cost = int(end -start)
            if time_cost > self.max_restart_time:
                tdLog.exit(" ==== restart dnode {} cost too much time , please check ====".format(self.stop_dnode_id))

            # create new stables again
            tdLog.notice(" ==== create new stable {} when  dnode {} restart ====".format('new_stb2' , self.stop_dnode_id))
            self.create_stable_insert_datas(dbname = db_name , stablename = 'new_stb2' , tb_nums= 10 ,row_nums= 10 )
            tdLog.notice(" ==== check new stable {} when  dnode {} restart ====".format('new_stb2' , self.stop_dnode_id))
            self.check_insert_rows(db_name ,'new_stb2' ,tb_nums=10 , row_nums= 10 ,append_rows=0)

    def unsync_run_case(self):

        def _restart_dnode_of_db_unsync(dbname):
            start = time.time()
            tdDnodes=cluster.dnodes
            self.stop_dnode_id = self._get_stop_dnode_id(dbname ,"follower")
            # begin restart dnode
            tdDnodes[self.stop_dnode_id-1].stoptaosd()
            self.wait_stop_dnode_OK()
            tdDnodes[self.stop_dnode_id-1].starttaosd()
            self.wait_start_dnode_OK()
            end = time.time()
            time_cost = int(end-start)

            if time_cost > self.max_restart_time:
                tdLog.exit(" ==== restart dnode {} cost too much time , please check ====".format(self.stop_dnode_id))


        def _create_threading(dbname):
            self.current_thread = threading.Thread(target=_restart_dnode_of_db_unsync, args=(dbname,))
            return self.current_thread


        '''
        in this mode  , it will be extra threading control start or stop dnode  , insert will always going with not care follower online or alive
        '''
        tdDnodes=cluster.dnodes
        for loop in range(self.loop_restart_times):
            db_name = "unsync_db_{}".format(loop)
            stablename = 'stable_{}'.format(loop)
            self.create_database(dbname = db_name ,replica_num= self.replica  , vgroup_nums= 1)
            self.create_stable_insert_datas(dbname = db_name , stablename = stablename , tb_nums= 10 ,row_nums= 10 )

            tdLog.notice(" ===== restart dnode of database {}  in an unsync threading  ===== ".format(db_name))

            # create sync threading and start it
            self.current_thread = _create_threading(db_name)
            self.current_thread.start()

            # check rows of datas
            self.check_insert_rows(db_name ,stablename ,tb_nums=10 , row_nums= 10 ,append_rows=0)

            tbname = "sub_{}_{}".format(stablename , 0)
            tdLog.notice(" ==== begin  append rows of exists table {} when dnode {} offline ====".format(tbname , self.stop_dnode_id))
            self.append_rows_of_exists_tables(db_name ,stablename , tbname , 100 )
            tdLog.notice(" ==== check  append rows of exists table {} when dnode {} offline ====".format(tbname , self.stop_dnode_id))
            self.check_insert_rows(db_name ,stablename ,tb_nums=10 , row_nums= 10 ,append_rows=100)

            # create new stables
            tdLog.notice(" ==== create new stable {} when  dnode {} offline ====".format('new_stb1' , self.stop_dnode_id))
            self.create_stable_insert_datas(dbname = db_name , stablename = 'new_stb1' , tb_nums= 10 ,row_nums= 10 )
            tdLog.notice(" ==== check new stable {} when  dnode {} offline ====".format('new_stb1' , self.stop_dnode_id))
            self.check_insert_rows(db_name ,'new_stb1' ,tb_nums=10 , row_nums= 10 ,append_rows=0)

            # create new stables again
            tdLog.notice(" ==== create new stable {} when  dnode {} restart ====".format('new_stb2' , self.stop_dnode_id))
            self.create_stable_insert_datas(dbname = db_name , stablename = 'new_stb2' , tb_nums= 10 ,row_nums= 10 )
            tdLog.notice(" ==== check new stable {} when  dnode {} restart ====".format('new_stb2' , self.stop_dnode_id))
            self.check_insert_rows(db_name ,'new_stb2' ,tb_nums=10 , row_nums= 10 ,append_rows=0)

            self.current_thread.join()


    def run(self):

        # basic insert and check of cluster
        self.check_setup_cluster_status()
        self.create_db_check_vgroups()
        self.sync_run_case()
        # self.unsync_run_case()




    def stop(self):
        tdSql.close()
        tdLog.success(f"{__file__} successfully executed")

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