#!/bin/bash


mount(){
pool=$(cli -c 'app kubernetes config' | grep -E "pool\s\|" | awk -F '|' '{print $3}' | tr -d " \t\n\r")
while true
do
    clear -x
    title
    echo "PVC Mount Menu"
    echo "--------------"
    echo "1)  Mount"
    echo "2)  Unmount All"
    echo
    echo "0)  Exit"
    read -rt 120 -p "Please type a number: " selection || { echo -e "\nFailed to make a selection in time" ; exit; }
    case $selection in
        0)
            echo "Exiting.."
            exit
            ;;
        1)
            call=$(k3s kubectl get pvc -A | sort -u | awk '{print $1 "\t" $2 "\t" $4}' | sed "s/^0/ /")
            mount_list=$(echo "$call" | sed 1d | nl -s ") ")
            mount_title=$(echo "$call" | head -n 1)
            list=$(echo -e "# $mount_title\n$mount_list" | column -t)
            while true
            do
                clear -x
                title
                echo "$list"
                echo
                echo "0)  Exit"
                read -rt 120 -p "Please type a number: " selection || { echo -e "\nFailed to make a selection in time" ; exit; }

                #Check for valid selection. If no issues, continue
                [[ $selection == 0 ]] && echo "Exiting.." && exit
                app=$(echo -e "$list" | grep ^"$selection)" | awk '{print $2}' | cut -c 4- )
                [[ -z "$app" ]] && echo "Invalid Selection: $selection, was not an option" && sleep 3 && continue
                pvc=$(echo -e "$list" | grep ^"$selection)")

                #Stop applicaiton if not stopped
                status=$(cli -m csv -c 'app chart_release query name,status' | grep "^$app," | awk -F ',' '{print $2}'| tr -d " \t\n\r")
                if [[ "$status" != "STOPPED" ]]; then
                    echo -e "\nStopping $app prior to mount"
                    if ! cli -c 'app chart_release scale release_name='\""$app"\"\ 'scale_options={"replica_count": 0}' &> /dev/null; then
                        echo "Failed to stop $app"
                        exit 1
                    else
                        echo "Stopped"
                    fi
                else
                    echo -e "\n$app is already stopped"
                fi

                #Grab data then output and mount
                data_name=$(echo "$pvc" | awk '{print $3}')
                volume_name=$(echo "$pvc" | awk '{print $4}')
                full_path=$(zfs list -t filesystem -r "$pool"/ix-applications/releases/"$app"/volumes -o name -H | grep "$volume_name")
                if ! zfs set mountpoint=/heavyscript/"$data_name" "$full_path" ; then
                    echo "Error: Failed to mount $app"
                    exit 1
                else
                    echo -e "\nMounted\n$data_name"
                fi
                echo -e "\nUnmount with:\nzfs set mountpoint=legacy $full_path && rmdir /mnt/truetool/$data_name\n\nOr use the Unmount All option\n"

                #Ask if user would like to mount something else
                while true
                do
                    echo
                    read -rt 120 -p "Would you like to mount anything else? (y/N): " yesno || { echo -e "\nFailed to make a selection in time" ; exit; }
                    case $yesno in
                    [Yy] | [Yy][Ee][Ss])
                        clear -x
                        title
                        break
                        ;;
                    [Nn] | [Nn][Oo])
                        exit
                        ;;
                    *)
                        echo "Invalid selection \"$yesno\" was not an option"
                        sleep 3
                        continue
                        ;;
                    esac
                done
            done
            ;;
        2)
            mapfile -t unmount_array < <(basename -a /mnt/truetool/* | sed "s/*//")
            [[ -z ${unmount_array[*]} ]] && echo "Theres nothing to unmount" && sleep 3 && continue
            for i in "${unmount_array[@]}"
            do
                main=$(k3s kubectl get pvc -A | grep -E "\s$i\s" | awk '{print $1, $2, $4}')
                app=$(echo "$main" | awk '{print $1}' | cut -c 4-)
                pvc=$(echo "$main" | awk '{print $3}')
                full_path=$(find /mnt/"$pool"/ix-applications/releases/"$app"/volumes/ -maxdepth 0 | cut -c 6-)
                zfs set mountpoint=legacy "$full_path""$pvc"
                echo "$i unmounted" && rmdir /mnt/truetool/"$i" || echo "failed to unmount $i"
            done
            rmdir /mnt/truetool
            sleep 3
            ;;
        *)
            echo "Invalid selection, \"$selection\" was not an option"
            sleep 3
            continue
            ;;
    esac
done
}
export -f mount