#!/usr/bin/env bash

echo "#########################"
echo "## Jack the DVD Ripper ##"
echo "#########################"

# requires mkvtoolnix, libdvdcss, makemkvcon

if (( EUID != 0 )); then
    echo "Error: This script must be run by ROOT"
	exit
fi

ROOT="/home/philip"
TMPF="riptmp"
DEVICE="/dev/$(grep "drive name:" < /proc/sys/dev/cdrom/info | awk '{print $3}')"
REMOTEDIR="/mnt/dsm_video"
LANGUAGE="fr"

blkid "$DEVICE"
if (( "$?" == 2 )); then
	echo "Error: DVD not found in $DEVICE"
	exit 1
fi
 
if [[ -z "$(ldconfig -p | grep libdvdcss)" ]]; then
	echo "Error: libdvdcss not installed"
	exit 1
fi

if [[ ! -x "$(command -v makemkvcon)" ]]; then
  echo "Error: makemkvcon is not installed." >&2
  exit 1
fi

if [[ ! -x "$(command -v mkvpropedit)" ]]; then
  echo "Error: mkvtoolnix is not installed." >&2
  exit 1
fi

if [[ ! -x "$(command -v HandBrakeCLI)" ]]; then
  echo "Error: HandBrakeCLI is not installed." >&2
  exit 1
fi

read -pr "Enter the final file name with extension: " name

if [[ -z "$name" ]]; then
    echo "A filename must be given, ex. myvid.mp4"
	exit
fi

cd "$ROOT" || exit
rm -rf "$TMPF"
mkdir "$TMPF"

echo "Making MKV in $ROOT/$TMPF"
makemkvcon mkv disc:0 all "$TMPF" || echo "Make mkv failed."
eject "$DEVICE" && echo "DVD ejected"

# get the largest file
cd "$TMPF" || exit
list="$(find . -type f -exec du -Sh {} + | sort -rh | head -n 1)"
file="$(echo "$list" | cut -d "/" -f2)"

if [[ ! -e "$file" ]]; then
    echo "Error: Couldn't find largest mkv file, exiting."
	exit
fi

# set default language 
mkvpropedit "$file" --edit track:a1 --set language="$LANGUAGE" || echo "Could not set default language"

echo "Converting $file to $name with Handbrake..."
HandBrakeCLI --input "$file" --output "$name" --encoder x264 --quality 20 --ab 160

echo "Copying $name to $REMOTEDIR"
if [[ -e "$name" ]]; then
    mount | grep -qs "$REMOTEDIR"
	if mount | grep -qs "$REMOTEDIR"; then
		cp "$name" "$REMOTEDIR"
	fi
else
	echo "$name not found, copy failed."
fi

echo "Script terminated."