###################################################################
#           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 os
import os.path
import platform
import subprocess
from time import sleep
import base64
import json
import copy
from fabric2 import Connection
from util.log import *


class TDSimClient:
    def __init__(self, path):
        self.testCluster = False
        self.path = path
        self.cfgDict = {
            "numOfLogLines": "100000000",
            "numOfThreadsPerCore": "2.0",
            "locale": "en_US.UTF-8",
            "charset": "UTF-8",
            "asyncLog": "0",
            "rpcDebugFlag": "143",
            "tmrDebugFlag": "131",
            "cDebugFlag": "143",
            "udebugFlag": "143",
            "jnidebugFlag": "143",
            "qdebugFlag": "143",
            "telemetryReporting": "0",
        }

    def getLogDir(self):
        self.logDir = "%s/sim/psim/log" % (self.path)
        return self.logDir

    def getCfgDir(self):
        self.cfgDir = "%s/sim/psim/cfg" % (self.path)
        return self.cfgDir

    def setTestCluster(self, value):
        self.testCluster = value

    def addExtraCfg(self, option, value):
        self.cfgDict.update({option: value})

    def cfg(self, option, value):
        cmd = "echo %s %s >> %s" % (option, value, self.cfgPath)
        if os.system(cmd) != 0:
            tdLog.exit(cmd)

    def deploy(self, *updatecfgDict):
        self.logDir = "%s/sim/psim/log" % (self.path)
        self.cfgDir = "%s/sim/psim/cfg" % (self.path)
        self.cfgPath = "%s/sim/psim/cfg/taos.cfg" % (self.path)

        cmd = "rm -rf " + self.logDir
        if os.system(cmd) != 0:
            tdLog.exit(cmd)

        # cmd = "mkdir -p " + self.logDir
        # if os.system(cmd) != 0:
        #     tdLog.exit(cmd)
        os.makedirs(self.logDir)

        cmd = "rm -rf " + self.cfgDir
        if os.system(cmd) != 0:
            tdLog.exit(cmd)

        # cmd = "mkdir -p " + self.cfgDir
        # if os.system(cmd) != 0:
        #     tdLog.exit(cmd)
        os.makedirs(self.cfgDir)

        cmd = "touch " + self.cfgPath
        if os.system(cmd) != 0:
            tdLog.exit(cmd)

        if self.testCluster:
            self.cfg("masterIp", "192.168.0.1")
            self.cfg("secondIp", "192.168.0.2")
        self.cfg("logDir", self.logDir)

        for key, value in self.cfgDict.items():
            self.cfg(key, value)
        
        try:
            if bool(updatecfgDict) and updatecfgDict[0] and updatecfgDict[0][0]:                    
                clientCfg = dict (updatecfgDict[0][0].get('clientCfg'))
                for key, value in clientCfg.items():
                    self.cfg(key, value)
        except Exception:
            pass

        tdLog.debug("psim is deployed and configured by %s" % (self.cfgPath))


class TDDnode:
    def __init__(self, index):
        self.index = index
        self.running = 0
        self.deployed = 0
        self.testCluster = False
        self.valgrind = 0
        self.remoteIP = ""
        self.cfgDict = {
            "walLevel": "2",
            "fsync": "1000",
            "monitor": "0",
            "maxShellConns": "30000",
            "locale": "en_US.UTF-8",
            "charset": "UTF-8",
            "asyncLog": "0",
            "mDebugFlag": "143",
            "dDebugFlag": "143",
            "vDebugFlag": "143",
            "tqDebugFlag": "143",
            "cDebugFlag": "143",
            "jniDebugFlag": "143",
            "qDebugFlag": "143",
            "rpcDebugFlag": "143",
            "tmrDebugFlag": "131",
            "uDebugFlag": "143",
            "sDebugFlag": "135",
            "wDebugFlag": "143",
            "qdebugFlag": "143",
            "numOfLogLines": "100000000",
            "statusInterval": "1",
            "telemetryReporting": "0"
        }

    def init(self, path, remoteIP = ""):
        self.path = path
        self.remoteIP = remoteIP
        if (not self.remoteIP == ""):
            try:
                self.config = eval(self.remoteIP)
                self.remote_conn = Connection(host=self.config["host"], port=self.config["port"], user=self.config["user"], connect_kwargs={'password':self.config["password"]})
            except Exception as r:
                print(r)

    def setTestCluster(self, value):
        self.testCluster = value

    def setValgrind(self, value):
        self.valgrind = value

    def getDataSize(self):
        totalSize = 0

        if (self.deployed == 1):
            for dirpath, dirnames, filenames in os.walk(self.dataDir):
                for f in filenames:
                    fp = os.path.join(dirpath, f)

                    if not os.path.islink(fp):
                        totalSize = totalSize + os.path.getsize(fp)

        return totalSize

    def addExtraCfg(self, option, value):
        self.cfgDict.update({option: value})

    def remoteExec(self, updateCfgDict, execCmd):
        valgrindStr = ''
        if (self.valgrind==1):
            valgrindStr = '-g'
        remoteCfgDict = copy.deepcopy(updateCfgDict)
        if ("logDir" in remoteCfgDict):
            del remoteCfgDict["logDir"]
        if ("dataDir" in remoteCfgDict):
            del remoteCfgDict["dataDir"]
        if ("cfgDir" in remoteCfgDict):
            del remoteCfgDict["cfgDir"]
        remoteCfgDictStr = base64.b64encode(json.dumps(remoteCfgDict).encode()).decode()
        execCmdStr = base64.b64encode(execCmd.encode()).decode()
        with self.remote_conn.cd((self.config["path"]+sys.path[0].replace(self.path, '')).replace('\\','/')):
            self.remote_conn.run("python3 ./test.py %s -d %s -e %s"%(valgrindStr,remoteCfgDictStr,execCmdStr))

    def deploy(self, *updatecfgDict):
        self.logDir = "%s/sim/dnode%d/log" % (self.path, self.index)
        self.dataDir = "%s/sim/dnode%d/data" % (self.path, self.index)
        self.cfgDir = "%s/sim/dnode%d/cfg" % (self.path, self.index)
        self.cfgPath = "%s/sim/dnode%d/cfg/taos.cfg" % (
            self.path, self.index)

        cmd = "rm -rf " + self.dataDir
        if os.system(cmd) != 0:
            tdLog.exit(cmd)

        cmd = "rm -rf " + self.logDir
        if os.system(cmd) != 0:
            tdLog.exit(cmd)

        cmd = "rm -rf " + self.cfgDir
        if os.system(cmd) != 0:
            tdLog.exit(cmd)

        # cmd = "mkdir -p " + self.dataDir
        # if os.system(cmd) != 0:
        #     tdLog.exit(cmd)
        os.makedirs(self.dataDir)

        # cmd = "mkdir -p " + self.logDir
        # if os.system(cmd) != 0:
        #     tdLog.exit(cmd)
        os.makedirs(self.logDir)

        # cmd = "mkdir -p " + self.cfgDir
        # if os.system(cmd) != 0:
        #     tdLog.exit(cmd)
        os.makedirs(self.cfgDir)

        cmd = "touch " + self.cfgPath
        if os.system(cmd) != 0:
            tdLog.exit(cmd)

        if self.testCluster:
            self.startIP()

        if self.testCluster:
            self.cfg("masterIp", "192.168.0.1")
            self.cfg("secondIp", "192.168.0.2")
            self.cfg("publicIp", "192.168.0.%d" % (self.index))
            self.cfg("internalIp", "192.168.0.%d" % (self.index))
            self.cfg("privateIp", "192.168.0.%d" % (self.index))
        self.cfgDict["dataDir"] = self.dataDir
        self.cfgDict["logDir"] = self.logDir
        # self.cfg("dataDir",self.dataDir)
        # self.cfg("logDir",self.logDir)
        # print(updatecfgDict)
        isFirstDir = 1
        if bool(updatecfgDict) and updatecfgDict[0] and updatecfgDict[0][0]:
            print(updatecfgDict[0][0])
            for key, value in updatecfgDict[0][0].items():
                if key == "clientCfg" and self.remoteIP == "" and not platform.system().lower() == 'windows':
                    continue
                if value == 'dataDir':
                    if isFirstDir:
                        self.cfgDict.pop('dataDir')
                        self.cfg(value, key)
                        isFirstDir = 0
                    else:
                        self.cfg(value, key)
                else:
                    self.addExtraCfg(key, value)
        if (self.remoteIP == ""):
            for key, value in self.cfgDict.items():
                self.cfg(key, value)
        else:
            self.remoteExec(self.cfgDict, "tdDnodes.deploy(%d,updateCfgDict)"%self.index)

        self.deployed = 1
        tdLog.debug(
            "dnode:%d is deployed and configured by %s" %
            (self.index, self.cfgPath))

    def getPath(self, tool="taosd"):
        selfPath = os.path.dirname(os.path.realpath(__file__))

        if ("community" in selfPath):
            projPath = selfPath[:selfPath.find("community")]
        else:
            projPath = selfPath[:selfPath.find("tests")]

        paths = []
        for root, dirs, files in os.walk(projPath):
            if ((tool) in files or ("%s.exe"%tool) in files):
                rootRealPath = os.path.dirname(os.path.realpath(root))
                if ("packaging" not in rootRealPath):
                    paths.append(os.path.join(root, tool))
                    break
        if (len(paths) == 0):
                return ""
        return paths[0]

    def start(self):
        binPath = self.getPath()

        if (binPath == ""):
            tdLog.exit("taosd not found!")
        else:
            tdLog.info("taosd found: %s" % binPath)

        if self.deployed == 0:
            tdLog.exit("dnode:%d is not deployed" % (self.index))

        if self.valgrind == 0:
            if platform.system().lower() == 'windows':
                cmd = "mintty -h never -w hide %s -c %s" % (
                    binPath, self.cfgDir)
            else:
                cmd = "nohup %s -c %s > /dev/null 2>&1 & " % (
                    binPath, self.cfgDir)
        else:
            valgrindCmdline = "valgrind --log-file=\"%s/../log/valgrind.log\"  --tool=memcheck --leak-check=full --show-reachable=no --track-origins=yes --show-leak-kinds=all -v --workaround-gcc296-bugs=yes"%self.cfgDir

            if platform.system().lower() == 'windows':
                cmd = "mintty -h never -w hide %s %s -c %s" % (
                    valgrindCmdline, binPath, self.cfgDir)
            else:
                cmd = "nohup %s %s -c %s 2>&1 & " % (
                    valgrindCmdline, binPath, self.cfgDir)

            print(cmd)

        if (not self.remoteIP == ""):
            self.remoteExec(self.cfgDict, "tdDnodes.dnodes[%d].deployed=1\ntdDnodes.dnodes[%d].logDir=\"%%s/sim/dnode%%d/log\"%%(tdDnodes.dnodes[%d].path,%d)\ntdDnodes.dnodes[%d].cfgDir=\"%%s/sim/dnode%%d/cfg\"%%(tdDnodes.dnodes[%d].path,%d)\ntdDnodes.start(%d)"%(self.index-1,self.index-1,self.index-1,self.index,self.index-1,self.index-1,self.index,self.index))
            self.running = 1
        else:
            if os.system(cmd) != 0:
                tdLog.exit(cmd)
            self.running = 1
            print("dnode:%d is running with %s " % (self.index, cmd))
            tdLog.debug("dnode:%d is running with %s " % (self.index, cmd))
            if self.valgrind == 0:
                time.sleep(0.1)
                key = 'from offline to online'
                bkey = bytes(key, encoding="utf8")
                logFile = self.logDir + "/taosdlog.0"
                i = 0
                while not os.path.exists(logFile):
                    sleep(0.1)
                    i += 1
                    if i > 50:
                        break
                tailCmdStr = 'tail -f '
                if platform.system().lower() == 'windows':
                    tailCmdStr = 'tail -n +0 -f '
                popen = subprocess.Popen(
                    tailCmdStr + logFile,
                    stdout=subprocess.PIPE,
                    stderr=subprocess.PIPE,
                    shell=True)
                pid = popen.pid
                # print('Popen.pid:' + str(pid))
                timeout = time.time() + 60 * 2
                while True:
                    line = popen.stdout.readline().strip()
                    if bkey in line:
                        popen.kill()
                        break
                    if time.time() > timeout:
                        tdLog.exit('wait too long for taosd start')
                tdLog.debug("the dnode:%d has been started." % (self.index))
            else:
                tdLog.debug(
                    "wait 10 seconds for the dnode:%d to start." %
                    (self.index))
                time.sleep(10)

    def startWithoutSleep(self):
        binPath = self.getPath()

        if (binPath == ""):
            tdLog.exit("taosd not found!")
        else:
            tdLog.info("taosd found: %s" % binPath)

        if self.deployed == 0:
            tdLog.exit("dnode:%d is not deployed" % (self.index))

        if self.valgrind == 0:
            cmd = "nohup %s -c %s > /dev/null 2>&1 & " % (
                binPath, self.cfgDir)
        else:
            valgrindCmdline = "valgrind  --log-file=\"%s/../log/valgrind.log\"  --tool=memcheck --leak-check=full --show-reachable=no --track-origins=yes --show-leak-kinds=all -v --workaround-gcc296-bugs=yes"%self.cfgDir

            cmd = "nohup %s %s -c %s 2>&1 & " % (
                valgrindCmdline, binPath, self.cfgDir)

            print(cmd)

        if (self.remoteIP == ""):
            if os.system(cmd) != 0:
                tdLog.exit(cmd)
        else:
            self.remoteExec(self.cfgDict, "tdDnodes.dnodes[%d].deployed=1\ntdDnodes.dnodes[%d].logDir=\"%%s/sim/dnode%%d/log\"%%(tdDnodes.dnodes[%d].path,%d)\ntdDnodes.dnodes[%d].cfgDir=\"%%s/sim/dnode%%d/cfg\"%%(tdDnodes.dnodes[%d].path,%d)\ntdDnodes.startWithoutSleep(%d)"%(self.index-1,self.index-1,self.index-1,self.index,self.index-1,self.index-1,self.index,self.index))

        self.running = 1
        tdLog.debug("dnode:%d is running with %s " % (self.index, cmd))

    def stop(self):
        if (not self.remoteIP == ""):
            self.remoteExec(self.cfgDict, "tdDnodes.dnodes[%d].running=1\ntdDnodes.dnodes[%d].stop()"%(self.index-1,self.index-1))
            tdLog.info("stop dnode%d"%self.index)
            return
        if self.valgrind == 0:
            toBeKilled = "taosd"
        else:
            toBeKilled = "valgrind.bin"

        if self.running != 0:
            psCmd = "ps -ef|grep -w %s| grep -v grep | awk '{print $2}'" % toBeKilled
            processID = subprocess.check_output(
                psCmd, shell=True).decode("utf-8")

            while(processID):
                killCmd = "kill -INT %s > /dev/null 2>&1" % processID
                os.system(killCmd)
                time.sleep(1)
                processID = subprocess.check_output(
                    psCmd, shell=True).decode("utf-8")
            if not platform.system().lower() == 'windows':
                for port in range(6030, 6041):
                    fuserCmd = "fuser -k -n tcp %d" % port
                    os.system(fuserCmd)
            if self.valgrind:
                time.sleep(2)

            self.running = 0
            tdLog.debug("dnode:%d is stopped by kill -INT" % (self.index))

    def forcestop(self):
        if (not self.remoteIP == ""):
            self.remoteExec(self.cfgDict, "tdDnodes.dnodes[%d].running=1\ntdDnodes.dnodes[%d].forcestop()"%(self.index-1,self.index-1))
            return
        if self.valgrind == 0:
            toBeKilled = "taosd"
        else:
            toBeKilled = "valgrind.bin"

        if self.running != 0:
            psCmd = "ps -ef|grep -w %s| grep -v grep | awk '{print $2}'" % toBeKilled
            processID = subprocess.check_output(
                psCmd, shell=True).decode("utf-8")

            while(processID):
                killCmd = "kill -KILL %s > /dev/null 2>&1" % processID
                os.system(killCmd)
                time.sleep(1)
                processID = subprocess.check_output(
                    psCmd, shell=True).decode("utf-8")
            for port in range(6030, 6041):
                fuserCmd = "fuser -k -n tcp %d" % port
                os.system(fuserCmd)
            if self.valgrind:
                time.sleep(2)

            self.running = 0
            tdLog.debug("dnode:%d is stopped by kill -KILL" % (self.index))

    def startIP(self):
        cmd = "sudo ifconfig lo:%d 192.168.0.%d up" % (self.index, self.index)
        if os.system(cmd) != 0:
            tdLog.exit(cmd)

    def stopIP(self):
        cmd = "sudo ifconfig lo:%d 192.168.0.%d down" % (
            self.index, self.index)
        if os.system(cmd) != 0:
            tdLog.exit(cmd)

    def cfg(self, option, value):
        cmd = "echo %s %s >> %s" % (option, value, self.cfgPath)
        if os.system(cmd) != 0:
            tdLog.exit(cmd)

    def getDnodeRootDir(self, index):
        dnodeRootDir = "%s/sim/psim/dnode%d" % (self.path, index)
        return dnodeRootDir

    def getDnodesRootDir(self):
        dnodesRootDir = "%s/sim/psim" % (self.path)
        return dnodesRootDir


class TDDnodes:
    def __init__(self):
        self.dnodes = []
        self.dnodes.append(TDDnode(1))
        self.dnodes.append(TDDnode(2))
        self.dnodes.append(TDDnode(3))
        self.dnodes.append(TDDnode(4))
        self.dnodes.append(TDDnode(5))
        self.dnodes.append(TDDnode(6))
        self.dnodes.append(TDDnode(7))
        self.dnodes.append(TDDnode(8))
        self.dnodes.append(TDDnode(9))
        self.dnodes.append(TDDnode(10))
        self.simDeployed = False
        self.testCluster = False
        self.valgrind = 0
        self.killValgrind = 1

    def init(self, path, remoteIP = ""):
        binPath = self.dnodes[0].getPath() + "/../../../"
        # tdLog.debug("binPath %s" % (binPath))
        binPath = os.path.realpath(binPath)
        # tdLog.debug("binPath real path %s" % (binPath))

        if path == "":
            self.path = os.path.abspath(binPath + "../../")
        else:
            self.path = os.path.realpath(path)

        for i in range(len(self.dnodes)):
            self.dnodes[i].init(self.path, remoteIP)
        self.sim = TDSimClient(self.path)

    def setTestCluster(self, value):
        self.testCluster = value

    def setValgrind(self, value):
        self.valgrind = value

    def setKillValgrind(self, value):
        self.killValgrind = value

    def deploy(self, index, *updatecfgDict):
        self.sim.setTestCluster(self.testCluster)

        if (self.simDeployed == False):
            self.sim.deploy(updatecfgDict)
            self.simDeployed = True

        self.check(index)
        self.dnodes[index - 1].setTestCluster(self.testCluster)
        self.dnodes[index - 1].setValgrind(self.valgrind)
        self.dnodes[index - 1].deploy(updatecfgDict)

    def cfg(self, index, option, value):
        self.check(index)
        self.dnodes[index - 1].cfg(option, value)

    def start(self, index):
        self.check(index)
        self.dnodes[index - 1].start()

    def startWithoutSleep(self, index):
        self.check(index)
        self.dnodes[index - 1].startWithoutSleep()

    def stop(self, index):
        self.check(index)
        self.dnodes[index - 1].stop()

    def getDataSize(self, index):
        self.check(index)
        return self.dnodes[index - 1].getDataSize()

    def forcestop(self, index):
        self.check(index)
        self.dnodes[index - 1].forcestop()

    def startIP(self, index):
        self.check(index)

        if self.testCluster:
            self.dnodes[index - 1].startIP()

    def stopIP(self, index):
        self.check(index)

        if self.dnodes[index - 1].testCluster:
            self.dnodes[index - 1].stopIP()

    def check(self, index):
        if index < 1 or index > 10:
            tdLog.exit("index:%d should on a scale of [1, 10]" % (index))

    def stopAll(self):
        tdLog.info("stop all dnodes")
        for i in range(len(self.dnodes)):
            self.dnodes[i].stop()

        psCmd = "ps -ef | grep -w taosd | grep 'root' | grep -v grep| grep -v defunct | awk '{print $2}'"
        processID = subprocess.check_output(psCmd, shell=True).decode("utf-8")
        if processID:
            cmd = "sudo systemctl stop taosd"
            os.system(cmd)
        # if os.system(cmd) != 0 :
        # tdLog.exit(cmd)
        psCmd = "ps -ef|grep -w taosd| grep -v grep| grep -v defunct | awk '{print $2}'"
        processID = subprocess.check_output(psCmd, shell=True).decode("utf-8")
        while(processID):
            killCmd = "kill -9 %s > /dev/null 2>&1" % processID
            os.system(killCmd)
            time.sleep(1)
            processID = subprocess.check_output(
                psCmd, shell=True).decode("utf-8")

        if self.killValgrind == 1:
            psCmd = "ps -ef|grep -w valgrind.bin| grep -v grep | awk '{print $2}'"
            processID = subprocess.check_output(psCmd, shell=True).decode("utf-8")
            while(processID):
                killCmd = "kill -TERM %s > /dev/null 2>&1" % processID
                os.system(killCmd)
                time.sleep(1)
                processID = subprocess.check_output(
                    psCmd, shell=True).decode("utf-8")

        # if os.system(cmd) != 0 :
        # tdLog.exit(cmd)

    def getDnodesRootDir(self):
        dnodesRootDir = "%s/sim" % (self.path)
        return dnodesRootDir

    def getSimCfgPath(self):
        return self.sim.getCfgDir()

    def getSimLogPath(self):
        return self.sim.getLogDir()

    def addSimExtraCfg(self, option, value):
        self.sim.addExtraCfg(option, value)


tdDnodes = TDDnodes()