#! /usr/bin/env ruby

require 'zabbixapi'
require 'yaml'
require 'socket'
require 'time'

# ZABBIX CONFIGURATION
config = YAML.load(File.read('/etc/zabbix/scripts/.zabbix/config.yml'))
zabbix_url = config['URL']
zabbix_id = config['USER']
zabbix_passwd = config['PASSWORD']

# ZABBIX AUTHENTICATION
zbx = ZabbixApi.connect(
  url: zabbix_url,
  user: zabbix_id,
  password: zabbix_passwd
)

# Create time_from and time_till
now = Time.now.strftime('%Y/%m/%d %H:%M:%S')
before = (Time.now - 180).strftime('%Y/%m/%d %H:%M:%S')
till = Time.parse(now)
from = Time.parse(before)
hostname = Socket.gethostname

zbx.query(
  method: 'item.get',
  params: {
    filter: {
      host: hostname
    },
    itemids: '23663'
  }
)

trends = zbx.query(
  method: 'history.get',
  params: {
    itemids: item_id,
    time_from: from,
    time_till: till,
    output: 'extend'
  }
)

p trends