#!/bin/zsh

. $(dirname $0:A)/func.zsh
check_root

if [ "$#" -ne 1 ]; then
  echo "missing args: crypt-disk <mount|umount>"
  exit
fi
CMD=$1

dock_dev="/dev/disk/by-id/ata-HGST_HTS721010A9E630_JR10046P3Z3SMN-part1"
dock1_dev="/dev/disk/by-id/ata-HGST_HTS721010A9E630_JR10046P3ZMMJN-part1"
remote_backup_dev="ata-WDC_WD1002FAEX-00Y9A0_WD-WCAW32441082-part1"

DEVICE=""
NAME=""

if [[ -e $dock_dev ]]; then
  DEVICE=$dock_dev
  NAME="dock"
elif [[ -e $dock1_dev ]]; then
  DEVICE=$dock1_dev
  NAME="dock1"
elif [[ -e $remote_backup ]]; then
  DEVICE=$remote_backup_dev
  NAME="remote_backup"
else
  echo "No known encrypted disk found."
  exit
fi

echo "disk: $NAME"

if [[ "$CMD" == "mount" ]]; then
  echo " mount"
  cryptsetup luksOpen $DEVICE $NAME
  mount /dev/mapper/$NAME
elif [[ "$CMD" == "umount" ]]; then
  echo " umount"
  umount /media/$NAME
  cryptsetup luksClose /dev/mapper/$NAME
else
  echo "Can't '$CMD' $NAME."
  exit
fi