ManageIQ/manageiq-content

#
# Description: This method is used to send Email Alerts based on Cluster
#

def buildDetails(ems_cluster)
  options = {}

  options[:object] = "Cluster - #{ems_cluster.name}"

  # Set alert to alert description
  options[:alert] = $evm.root['miq_alert_description']

  # Get Appliance name from model unless specified below
  appliance = nil
  # appliance ||= $evm.object['appliance']
  appliance ||= $evm.root['miq_server'].ipaddress

  # Get signature from model unless specified below
  signature = nil
  signature ||= $evm.object['signature']

  # Build Email Subject
  subject = "#{options[:alert]} | Cluster: [#{ems_cluster.name}]"
  options[:subject] = subject

  # Build Email Body
  body = "Attention,"
  body += "<br>EVM Appliance: #{$evm.root['miq_server'].hostname}"
  body += "<br>EVM Region: #{$evm.root['miq_server'].region_number}"
  body += "<br>Alert: #{options[:alert]}"
  body += "<br><br>"

  body += "<br>Cluster <b>#{ems_cluster.name}</b> Properties:"
  body += "<br>Cluster URL: <a href='https://#{appliance}/ems_cluster/show/#{ems_cluster.id}'>https://#{appliance}/ems_cluster/show/#{ems_cluster.id}</a>"
  body += "<br>Total Host CPU Resources: #{ems_cluster.aggregate_cpu_speed}"
  body += "<br>Total Host Memory: #{ems_cluster.aggregate_memory}"
  body += "<br>Total Host CPUs: #{ems_cluster.aggregate_physical_cpus}"
  body += "<br>Total Host CPU Cores: #{ems_cluster.aggregate_cpu_total_cores}"
  body += "<br>Total Configured VM Memory: #{ems_cluster.aggregate_vm_memory}"
  body += "<br>Total Configured VM CPUs: #{ems_cluster.aggregate_vm_cpus}"
  body += "<br><br>"

  body += "<br>Configuration:"
  body += "<br>HA Enabled: #{ems_cluster.ha_enabled}"
  body += "<br>HA Admit Control: #{ems_cluster.ha_admit_control}"
  body += "<br>DRS Enabled: #{ems_cluster.drs_enabled}"
  body += "<br>DRS Automation Level: #{ems_cluster.drs_automation_level}"
  body += "<br>DRS Migration Threshold: #{ems_cluster.drs_migration_threshold}"
  body += "<br><br>"

  body += "<br>Relationships:"
  body += "<br>Datacenter: #{ems_cluster.v_parent_datacenter}"
  body += "<br>Hosts: #{ems_cluster.total_hosts}"
  body += "<br>VM(s): #{ems_cluster.total_vms}"
  body += "<br><br>"

  body += "<br>Cluster Tags:"
  body += "<br>#{ems_cluster.tags.inspect}"
  body += "<br><br>"

  body += "<br>Regards,"
  body += "<br>#{signature}"
  options[:body] = body

  # Return options Hash with subject, body, alert
  options
end

def boolean(string)
  return true if string == true || string =~ (/(true|t|yes|y|1)$/i)
  return false if string == false || string.nil? || string =~ (/(false|f|no|n|0)$/i)
  $evm.log("info", "Invalid boolean string:<#{string}> detected. Returning false")
  false
end

def emailAlert(options)
  # Get to_email_address from model unless specified below
  to = nil
  to ||= $evm.object['to_email_address']

  # Get from_email_address from model unless specified below
  from = nil
  from ||= $evm.object['from_email_address']

  # Get subject from options Hash
  subject = options[:subject]

  # Get body from options Hash
  body = options[:body]

  $evm.log("info", "Sending email To:<#{to}> From:<#{from}> subject:<#{subject}>")
  $evm.execute(:send_email, to, from, subject, body)
end

ems_cluster = $evm.root['ems_cluster']
unless ems_cluster.nil?
  $evm.log("info", "Detected Cluster:<#{ems_cluster.name}>")

  # If email is set to true in the model
  options = buildDetails(ems_cluster)

  # Get email from model
  email = $evm.object['email']

  if boolean(email)
    emailAlert(options)
  end
end