# Install using: sudo su -c "bash <(wget -qO- /url/to/install-wkhtmltopdf.sh)"
# https://wkhtmltopdf.org/

function version { echo "$@" | awk -F. '{ printf("%d%03d%03d%03d\n", $1,$2,$3,$4); }'; }

# Make sure script is ran as root
if [[ $EUID -ne 0 ]]; then
	exec sudo /bin/bash "$0" "$@"
fi
REALUSER=$(logname)
OS_VERSION=$(grep -oP 'VERSION_ID="\K[\d.]+' /etc/os-release)

# apt update -qq 2>>install.log

if [ $(version $OS_VERSION) -ge $(version "22.0.0") ]; then
	echo "OS version 22 detected"
	DEBURL="https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6.1-2/wkhtmltox_0.12.6.1-2.jammy_amd64.deb"
elif [ $(version $OS_VERSION) -ge $(version "20.0.0") ]; then
	echo "OS version 20 detected"
	DEBURL="https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6-1/wkhtmltox_0.12.6-1.focal_amd64.deb"
elif [ $(version $OS_VERSION) -ge $(version "18.0.0") ]; then
	echo "OS version 18 detected"
	DEBURL="https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6-1/wkhtmltox_0.12.6-1.bionic_amd64.deb"
elif [ $(version $OS_VERSION) -ge $(version "16.0.0") ]; then
	echo "OS version 16 detected"
	DEBURL="https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6-1/wkhtmltox_0.12.6-1.xenial_amd64.deb"
else
	echo "Invalid OS version detected"
	exit 1
fi

TEMP_DEB="$(mktemp)" &&
wget -O "$TEMP_DEB" "$DEBURL" &&
dpkg -i "$TEMP_DEB"
apt --fix-broken install
rm -f "$TEMP_DEB"

echo 'Installation complete'