#!/bin/bash

# Settings
mount /dev/sdg1 /media/USB/
backup_dir="/media/USB"
backup_ext=".xva"
date=$(date +%Y-%m-%d_%H-%M-%S)

# el ficher mes antic  find -type f -printf "%T+ %p\0" | sort -z | grep -zom 1 ".*" | cat
# eliminar en funció del tamany lliure
#(df -h | grep -E $FILESYSTEM | tr -s ' ' | cut -d ' ' -f 5 | tr -d %) if [ $USODISCO -ge 75 ];


# VMs to backup

vm_backup_list=()
#  web
vm_backup_list[0]="04a171c2-8bec-2ca3-e3eb-b973dd679b00"
# CONTABLE-IV
vm_backup_list[1]="d661b416-46ce-56c4-fec7-a1ec101c7b4e"
#DB
vm_backup_list[2]="d489a678-4050-9ef8-3b2f-1b551fae4121"
#FS02
vm_backup_list[3]="a882869d-e87d-75f6-42b0-9f29809cc911"
#FW
vm_backup_list[4]="59f0fb46-01c4-41c7-077e-99ddeecbc4a7"

vm_backup_list_count=${#vm_backup_list[@]}

# Get VM list

vm_list_string=`xe vm-list is-control-domain=false`
IFS="
"
vm_list_array=($vm_list_string)
vm_list_count=${#vm_list_array[@]}

# Create arrays to use

vm_uuid_array=()
vm_label_array=()
vm_log=()


# Start Log

vm_log[${#vm_log[@]}]="Starting VM Backup: $date"
vm_log[${#vm_log[@]}]="-----------------------------"


# Get VMs to export

vm_log[${#vm_log[@]}]="Parsing VM list"

key=0
index=0

for line in ${vm_list_array[@]}; do

        if [ ${line:0:4} = "uuid" ]; then

                uuid=`expr "$line" : '.*: \(.*\)$'`
                label=`expr "${vm_list_array[key+1]}" : '.*: \(.*\)$'`

                vm_uuid_array[index]=$uuid
                vm_label_array[index]=$label

                vm_log[${#vm_log[@]}]="Added VM #$index: $uuid, $label"

                let "index = $index+1"

        fi

        let "key = $key+1"

done

vm_log[${#vm_log[@]}]="Done parsing VM list"


# Backup VMs

vm_log[${#vm_log[@]}]="Backup VMs"

key=0

for uuid in ${vm_uuid_array[@]}; do

        # Set VM backup state

        backup_vm=false

        # If the backup list is empty

        if [ $vm_backup_list_count = 0 ]; then

                # Backup all VMs

                backup_vm=true

        # Else check to see if the VM is to be backed up

        else

                for backup_uuid in ${vm_backup_list[@]}; do

                        if [ $uuid = $backup_uuid ]; then

                                backup_vm=true
                                break

                        fi

                done

        fi

        # If the VM is being backed up

        if [ $backup_vm = true ]; then

                # Log

                vm_log[${#vm_log[@]}]="VM: $uuid"

                # Label

                label=${vm_label_array[key]}

                # Create snapshot

                snapshot=`xe vm-snapshot vm=$uuid new-name-label=backup_$date`
                vm_log[${#vm_log[@]}]="Snapshot: $snapshot"

                # Set as VM not template

                snapshot_template=`xe template-param-set is-a-template=false uuid=$snapshot`
                vm_log[${#vm_log[@]}]="Set as VM"

                # Export

                snapshot_export=`xe vm-export vm=$snapshot filename="$backup_dir$label-$date$backup_ext"`
                vm_log[${#vm_log[@]}]="Export: $snapshot_export"

                # Delete snapshot

                snapshot_delete=`xe vm-uninstall uuid=$snapshot force=true`
                vm_log[${#vm_log[@]}]="Delete Snapshot: $snapshot_delete"

        # Else the VM isnt being backed up

        else

                # Log

                vm_log[${#vm_log[@]}]="VM: $uuid"
               vm_log[${#vm_log[@]}]="Ignoring Backup"

        fi

        # Increment Key

        let "key = $key+1"

done

vm_log[${#vm_log[@]}]="Export Complete"
vm_log[${#vm_log[@]}]="

"

# Logging

#echo ${vm_uuid_array[@]}
#echo ${vm_label_array[@]}

for log in ${vm_log[@]}; do
        echo $log
done