# coding:utf-8

import sys
import io
import os
import time
import re

web_dir = os.getcwd() + "/web"
if os.path.exists(web_dir):
    sys.path.append(web_dir)
    os.chdir(web_dir)

import core.mw as mw

app_debug = False
if mw.isAppleSystem():
    app_debug = True


def getPluginName():
    return 'keepalived'


def getPluginDir():
    return mw.getPluginDir() + '/' + getPluginName()


def getServerDir():
    return mw.getServerDir() + '/' + getPluginName()


def getInitDFile():
    current_os = mw.getOs()
    if current_os == 'darwin':
        return '/tmp/' + getPluginName()

    if current_os.startswith('freebsd'):
        return '/etc/rc.d/' + getPluginName()

    return '/etc/init.d/' + getPluginName()


def getConf():
    path = getServerDir() + "/etc/keepalived/keepalived.conf"
    return path


def getConfTpl():
    path = getPluginDir() + "/config/keepalived.conf"
    return path


def getInitDTpl():
    path = getPluginDir() + "/init.d/" + getPluginName() + ".tpl"
    return path


def getArgs():
    args = sys.argv[3:]
    tmp = {}
    args_len = len(args)

    if args_len == 1:
        t = args[0].strip('{').strip('}')
        if t.strip() == '':
            tmp = []
        else:
            t = t.split(':')
            tmp[t[0]] = t[1]
        tmp[t[0]] = t[1]
    elif args_len > 1:
        for i in range(len(args)):
            t = args[i].split(':')
            tmp[t[0]] = t[1]
    return tmp

def checkArgs(data, ck=[]):
    for i in range(len(ck)):
        if not ck[i] in data:
            return (False, mw.returnJson(False, '参数:(' + ck[i] + ')没有!'))
    return (True, mw.returnJson(True, 'ok'))

def configTpl():
    path = getPluginDir() + '/tpl'
    pathFile = os.listdir(path)
    tmp = []
    for one in pathFile:
        file = path + '/' + one
        tmp.append(file)
    return mw.getJson(tmp)


def readConfigTpl():
    args = getArgs()
    data = checkArgs(args, ['file'])
    if not data[0]:
        return data[1]

    content = mw.readFile(args['file'])
    content = contentReplace(content)
    return mw.returnJson(True, 'ok', content)


def defaultScriptsTpl():
    path = getServerDir() + "/scripts/chk.sh"
    return path

def configScriptsTpl():
    path = getServerDir() + '/scripts'
    pathFile = os.listdir(path)
    tmp = []
    for one in pathFile:
        file = path + '/' + one
        tmp.append(file)
    return mw.getJson(tmp)


def status():
    data = mw.execShell(
        "ps -ef|grep keepalived |grep -v grep | grep -v python| awk '{print $2}'")

    if data[0] == '':
        return 'stop'
    return 'start'


def contentReplace(content):
    service_path = mw.getServerDir()
    content = content.replace('{$SERVER_PATH}', service_path)
    content = content.replace('{$PLUGIN_PATH}', getPluginDir())

    # 网络接口
    ethx = mw.execShell("route -n | grep ^0.0.0.0 | awk '{print $8}'")
    if ethx[1]!='':
        # 未找到
        content = content.replace('{$ETH_XX}', 'eth1')
    else:
        # 已找到
        content = content.replace('{$ETH_XX}', ethx[0])


    return content


def copyScripts():
    # 复制检查脚本
    src_scripts_path = getPluginDir() + '/scripts'
    dst_scripts_path = getServerDir() + '/scripts'
    if not os.path.exists(dst_scripts_path):
        mw.execShell('mkdir -p ' + dst_scripts_path)
        olist = os.listdir(src_scripts_path)
        for o in range(len(olist)):
            src_file = src_scripts_path+'/'+olist[o]
            dst_file = dst_scripts_path+'/'+olist[o]

            content = mw.readFile(src_file)
            content = contentReplace(content)
            mw.writeFile(dst_file, content)

            cmd = 'chmod +x ' + dst_file
            mw.execShell(cmd)
        return True
    return False

def initDreplace():

    file_tpl = getInitDTpl()
    service_path = mw.getServerDir()

    initD_path = getServerDir() + '/init.d'
    if not os.path.exists(initD_path):
        os.mkdir(initD_path)
    file_bin = initD_path + '/' + getPluginName()

    # initd replace
    if not os.path.exists(file_bin):
        content = mw.readFile(file_tpl)
        content = contentReplace(content)
        mw.writeFile(file_bin, content)
        mw.execShell('chmod +x ' + file_bin)

    # log
    dataLog = getServerDir() + '/data'
    if not os.path.exists(dataLog):
        mw.execShell('chmod +x ' + file_bin)

    # config replace
    dst_conf = getServerDir() + '/etc/keepalived/keepalived.conf'
    dst_conf_init = getServerDir() + '/init.pl'
    if not os.path.exists(dst_conf_init):
        content = mw.readFile(getConfTpl())
        content = contentReplace(content)
        mw.writeFile(dst_conf, content)
        mw.writeFile(dst_conf_init, 'ok')

    # 复制检查脚本
    copyScripts()

    # systemd
    systemDir = mw.systemdCfgDir()
    systemService = systemDir + '/' + getPluginName() + '.service'
    if os.path.exists(systemDir) and not os.path.exists(systemService):
        systemServiceTpl = getPluginDir() + '/init.d/' + getPluginName() + '.service.tpl'
        content = mw.readFile(systemServiceTpl)
        content = contentReplace(content)
        mw.writeFile(systemService, content)
        mw.execShell('systemctl daemon-reload')

    return file_bin


def kpOp(method):
    file = initDreplace()

    current_os = mw.getOs()
    if current_os == "darwin":
        data = mw.execShell(file + ' ' + method)
        if data[1] == '':
            return 'ok'
        return data[1]

    if current_os.startswith("freebsd"):
        data = mw.execShell('service ' + getPluginName() + ' ' + method)
        if data[1] == '':
            return 'ok'
        return data[1]

    data = mw.execShell('systemctl ' + method + ' ' + getPluginName())
    if data[1] == '':
        return 'ok'
    return data[1]


def start():
    return kpOp('start')


def stop():
    return kpOp('stop')


def restart():
    status = kpOp('restart')

    log_file = runLog()
    mw.execShell("echo '' > " + log_file)
    return status


def reload():
    return kpOp('reload')


def getPort():
    conf = getServerDir() + '/keepalived.conf'
    content = mw.readFile(conf)

    rep = r"^(" + 'port' + r')\s*([.0-9A-Za-z_& ~]+)'
    tmp = re.search(rep, content, re.M)
    if tmp:
        return tmp.groups()[1]

    return '6379'


def initdStatus():
    current_os = mw.getOs()
    if current_os == 'darwin':
        return "Apple Computer does not support"

    if current_os.startswith('freebsd'):
        initd_bin = getInitDFile()
        if os.path.exists(initd_bin):
            return 'ok'

    shell_cmd = 'systemctl status ' + \
        getPluginName() + ' | grep loaded | grep "enabled;"'
    data = mw.execShell(shell_cmd)
    if data[0] == '':
        return 'fail'
    return 'ok'


def initdInstall():
    current_os = mw.getOs()
    if current_os == 'darwin':
        return "Apple Computer does not support"

    # freebsd initd install
    if current_os.startswith('freebsd'):
        import shutil
        source_bin = initDreplace()
        initd_bin = getInitDFile()
        shutil.copyfile(source_bin, initd_bin)
        mw.execShell('chmod +x ' + initd_bin)
        mw.execShell('sysrc ' + getPluginName() + '_enable="YES"')
        return 'ok'

    mw.execShell('systemctl enable ' + getPluginName())
    return 'ok'


def initdUinstall():
    current_os = mw.getOs()
    if current_os == 'darwin':
        return "Apple Computer does not support"

    if current_os.startswith('freebsd'):
        initd_bin = getInitDFile()
        os.remove(initd_bin)
        mw.execShell('sysrc ' + getPluginName() + '_enable="NO"')
        return 'ok'

    mw.execShell('systemctl disable ' + getPluginName())
    return 'ok'


def runLog():
    return getServerDir() + '/' + getPluginName() + '.log'


if __name__ == "__main__":
    func = sys.argv[1]
    if func == 'status':
        print(status())
    elif func == 'start':
        print(start())
    elif func == 'stop':
        print(stop())
    elif func == 'restart':
        print(restart())
    elif func == 'reload':
        print(reload())
    elif func == 'initd_status':
        print(initdStatus())
    elif func == 'initd_install':
        print(initdInstall())
    elif func == 'initd_uninstall':
        print(initdUinstall())
    elif func == 'run_info':
        print(runInfo())
    elif func == 'conf':
        print(getConf())
    elif func == 'run_log':
        print(runLog())
    elif func == 'config_tpl':
        print(configTpl())
    elif func == 'default_scripts_tpl':
        print(defaultScriptsTpl())
    elif func == 'config_scripts_tpl':
        print(configScriptsTpl())
    elif func == 'read_config_tpl':
        print(readConfigTpl())
    else:
        print('error')
