#!/bin/bash


backup(){
echo_backup+=("\nNumber of backups was set to $number_of_backups")
date=$(date '+%Y_%m_%d_%H_%M_%S')
[[ "$verbose" == "true" ]] && cli -c 'app kubernetes backup_chart_releases backup_name=''"'HeavyScript_"$date"'"'
[[ -z "$verbose" ]] && echo_backup+=("\nNew Backup Name:") && cli -c 'app kubernetes backup_chart_releases backup_name=''"'HeavyScript_"$date"'"' | tail -n 1
mapfile -t list_backups < <(cli -c 'app kubernetes list_backups' | grep "HeavyScript_" | sort -t '_' -Vr -k2,7 | awk -F '|'  '{print $2}'| tr -d " \t\r")
if [[  ${#list_backups[@]}  -gt  "number_of_backups" ]]; then
    echo_backup+=("\nDeleting the oldest backup(s) for exceeding limit:")
    overflow=$(( ${#list_backups[@]} - "$number_of_backups" ))
    mapfile -t list_overflow < <(cli -c 'app kubernetes list_backups' | grep "HeavyScript_"  | sort -t '_' -V -k2,7 | awk -F '|'  '{print $2}'| tr -d " \t\r" | head -n "$overflow")
    for i in "${list_overflow[@]}"
    do
        cli -c 'app kubernetes delete_backup backup_name=''"'"$i"'"' &> /dev/null || echo_backup+=("Failed to delete $i")
        echo_backup+=("$i")
    done
fi

#Dump the echo_array, ensures all output is in a neat order. 
for i in "${echo_backup[@]}"
do
    echo -e "$i"
done
}
export -f backup



deleteBackup(){
clear -x && echo "pulling all restore points.."
list_backups=$(cli -c 'app kubernetes list_backups' | sort -t '_' -Vr -k2,7 | tr -d " \t\r"  | awk -F '|'  '{print $2}' | nl | column -t)
clear -x
[[ -z "$list_backups" ]] && echo "No restore points available" && exit
title 
echo -e "Choose a restore point to delete\nThese may be out of order if they are not all HeavyScript backups"
echo "$list_backups"
read -pr -t 600 "Please type a number: " selection
restore_point=$(echo "$list_backups" | grep ^"$selection " | awk '{print $2}')
if [[ -z "$selection" ]]; then #Check for valid selection. If none, kill script
    echo "Your selection cannot be empty"
    exit 
elif [[ -z "$restore_point" ]]; then #Check for valid selection. If none, kill script
    echo "Invalid Selection: $selection, was not an option"
    exit 
fi
echo -e "\nWARNING:\nYou CANNOT go back after deleting your restore point"
echo -e "\n\nYou have chosen:\n$restore_point\n\nWould you like to continue?"  && echo -e "1  Yes\n2  No"
read -rp -t 120 "Please type a number: " yesno || { echo "Failed to make a valid selection"; exit; }
if [[ $yesno == "1" ]]; then
    echo -e "\nDeleting $restore_point" && cli -c 'app kubernetes delete_backup backup_name=''"'"$restore_point"'"' &>/dev/null && echo "Sucessfully deleted" || echo "Deletion Failed"
elif [[ $yesno == "2" ]]; then
    echo "You've chosen NO, killing script."
else
    echo "Invalid Selection"
fi
}
export -f deleteBackup


restore(){
clear -x && echo "pulling restore points.."
list_backups=$(cli -c 'app kubernetes list_backups' | grep "HeavyScript_" | sort -t '_' -Vr -k2,7 | tr -d " \t\r"  | awk -F '|'  '{print $2}' | nl | column -t)
clear -x
[[ -z "$list_backups" ]] && echo "No HeavyScript restore points available" && exit || { title; echo "Choose a restore point" ;  }
echo "$list_backups" && read -t 600 -p "Please type a number: " selection && restore_point=$(echo "$list_backups" | grep ^"$selection " | awk '{print $2}')
[[ -z "$selection" ]] && echo "Your selection cannot be empty" && exit #Check for valid selection. If none, kill script
[[ -z "$restore_point" ]] && echo "Invalid Selection: $selection, was not an option" && exit #Check for valid selection. If none, kill script
echo -e "\nWARNING:\nThis is NOT guranteed to work\nThis is ONLY supposed to be used as a LAST RESORT\nConsider rolling back your applications instead if possible" || { echo "FAILED"; exit; }
echo -e "\n\nYou have chosen:\n$restore_point\n\nWould you like to continue?"  && echo -e "1  Yes\n2  No" && read -t 120 -p "Please type a number: " yesno || { echo "FAILED"; exit; }
if [[ $yesno == "1" ]]; then
    echo -e "\nStarting Backup, this will take a LONG time." && cli -c 'app kubernetes restore_backup backup_name=''"'"$restore_point"'"' || echo "Restore FAILED"
elif [[ $yesno == "2" ]]; then
    echo "You've chosen NO, killing script. Good luck."
else
    echo "Invalid Selection"
fi
}
export -f restore