#!/usr/bin/python3
# @Date: 2020/8/20 14:16
# @Author: zhangcheng
# @email: 3359957053@qq.com
# -*- coding: utf-8 -*-

import pymysql
import time,datetimeimport math

#zabbix数据库信息：
zdbhost = "192.168.200.41"
zdbuser = "root"
zdbpass = "zabbix"
zdbport = 3306
zdbname = "zabbix"

#需要查询的key列表
keys = {
    'trends_uint':[
        # 'vfs.fs.size[/,used]',
        'vm.memory.size[available]',

        'vm.memory.size[total]',

        ],
    'trends':[
        'system.cpu.load[percpu,avg15]',
        'system.cpu.util[,idle]',
        'system.cpu.num',
        ],
    }


class ReportForm:

    def __init__(self):
        '''打开数据库连接'''
        self.conn = pymysql.connect(host=zdbhost,user=zdbuser,passwd=zdbpass,port=zdbport,db=zdbname,charset="utf8")
        self.cursor = self.conn.cursor()

        #生成zabbix哪个分组报表
        self.groupname = "智能产品事业部"

        #获取IP信息：
        self.IpInfoList = self.__getHostList()

    def __getHostList(self):
        '''根据zabbix组名获取该组所有IP'''
        #查询组ID:
        sql = '''select groupid from hstgrp where name = "{0}"'''.format(self.groupname)
        self.cursor.execute(sql)
        groupid = self.cursor.fetchone()[0]

        #根据groupid查询该分组下面的所有主机ID（hostid）：
        sql = '''select hostid from hosts_groups where groupid = {0}'''.format(groupid)
        self.cursor.execute(sql)
        hostlist = [i for i in list("%s" %j for j in self.cursor.fetchall())]
        # ['10550', '10551', '10552', '10553', '10555', '10556', '10557', '10558', '10559', '10560', '10561', '10562','10563', '10564']


        #生成IP信息字典：结构为{'112.111.222.55':{'hostid':'10086L'},}
        IpInfoList = {}
        for hostid in hostlist:
            sql = '''select host from hosts where status = 0 and hostid = {0}'''.format(hostid)
            ret = self.cursor.execute(sql)
            if ret:
                IpInfoList["".join("%s" %i for i in list(self.cursor.fetchone()))] = {'hostid':hostid}
        return IpInfoList

    def __getItemid(self,hostid,itemname):
        '''获取itemid'''
        sql = '''select itemid from items where hostid = {0} and key_ = "{1}" '''.format(hostid, itemname)
        print(sql)
        if self.cursor.execute(sql):
            itemid = "".join("%s" %i for i in list(self.cursor.fetchone()))
        else:
            print(hostid,itemname)
            itemid = None
        return itemid

    def getTrendsValue(self,itemid, start_time, stop_time):
        '''查询trends_uint表的值,type的值为min,max,avg三种'''
        resultlist = {}
        for type in ['min','max','avg']:
            sql = '''select {0}(value_{1}) as result from trends where itemid = {2} and clock >= {3} and clock <= {4}'''.format(type, type, itemid, start_time, stop_time)
            self.cursor.execute(sql)
            result = self.cursor.fetchone()[0]
            if result == None:
                result = 0
            resultlist[type] = result
        return resultlist

    def getTrends_uintValue(self,itemid, start_time, stop_time):
        '''查询trends_uint表的值,type的值为min,max,avg三种'''
        resultlist = {}
        for type in ['min','max','avg']:
            sql = '''select {0}(value_{1}) as result from trends_uint where itemid = {2} and clock >= {3} and clock <= {4}'''.format(type, type, itemid, start_time, stop_time)
            self.cursor.execute(sql)
            result = self.cursor.fetchone()[0]
            if result:
                resultlist[type] = result
            else:
                resultlist[type] = 0
        return resultlist


    def getLastMonthData(self,hostid,table,itemname):
        '''根据hostid,itemname获取该监控项的值'''
        #获取上个月的第一天和最后一天
        ts_first = int(time.mktime(datetime.date(datetime.date.today().year,datetime.date.today().month,1).timetuple()))
        # lst_last = datetime.date(datetime.date.today().year,datetime.date.today().month,1)-datetime.timedelta(1)
        lst_last = datetime.date(datetime.date.today().year,datetime.date.today().month+1,1)-datetime.timedelta(1)
        ts_last = int(time.mktime(lst_last.timetuple()))
        itemid = self.__getItemid(hostid, itemname)

        function = getattr(self,'get{0}Value'.format(table.capitalize()))

        return  function(itemid, ts_first, ts_last)

    def getInfo(self):
        #循环读取IP列表信息
        for ip,resultdict in  zabbix.IpInfoList.items():
            print("正在查询 IP:%-15s hostid:%5d 的信息" %(ip,int(resultdict['hostid'])))
            #循环读取keys，逐个key统计数据：
            for table, keylists in keys.items():
                for key in keylists:
                    print("\t正在统计 key_:'{0}'".format(key))
                    data =  zabbix.getLastMonthData(resultdict['hostid'],table,key)
                    zabbix.IpInfoList[ip][key] = data


    def writeToXls(self):
        '''生成xls文件'''
        try:
            import xlsxwriter
            date = time.strftime("%Y-%m",time.localtime())
            #创建文件
            workbook = xlsxwriter.Workbook(self.groupname + "-" + date + '.xls')
            #创建工作薄
            worksheet = workbook.add_worksheet()
            #写入标题（第一行）
            i = 0
            for value in ["归属部门","主机","CPU核数","CPU平均空闲值","CPU最小空闲值","CPU15分钟负载","总内存","平均可用内存","最小可用内存"]:
                worksheet.write(0,i, value)
                i = i + 1
                #写入内容：
            j = 1
            for ip,value in self.IpInfoList.items():
                worksheet.write(j,0, self.groupname)
                worksheet.write(j,1, ip)
                worksheet.write(j,2, '{}'.format(value['system.cpu.num']['avg']))
                worksheet.write(j,3, '{:.2f}%'.format(value['system.cpu.util[,idle]']['avg']))
                worksheet.write(j,4, '{:.2f}%'.format(value['system.cpu.util[,idle]']['min']))
                worksheet.write(j,5, '{:.2f}'.format(value['system.cpu.load[percpu,avg15]']['avg']))
                worksheet.write(j,6, '{}GB'.format(math.ceil(value['vm.memory.size[total]']['avg'] / 1024 / 1024 / 1024)))
                worksheet.write(j,7, '{}GB'.format(math.ceil(value['vm.memory.size[available]']['avg'] / 1024 / 1024 / 1024)))
                worksheet.write(j,8, '{}GB'.format(math.ceil(value['vm.memory.size[available]']['min'] / 1024 / 1024 / 1024)))

                j = j + 1
            workbook.close()
        except Exception as e:
            print(e)



    def __del__(self):
        '''关闭数据库连接'''
        self.cursor.close()
        self.conn.close()

if __name__ == "__main__":
    zabbix = ReportForm()
    zabbix.getInfo()
    zabbix.writeToXls()

效果图如下，由于CPU核数是新增的，故在本月是没有数据的：