install.sh

#!/bin/bash

# Make sure we are running as root
if [[ $EUID -ne 0 ]]; then
  echo "This script must be run as root" 1>&2
  exit 1
fi

# Define color variables
BLUE='\e[34;1m'
NC='\e[0m' # No Color

# determine the directory where this script is located
DIR="$(cd -P "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
DEST="/opt/dialserver"

# create the target directory if needed, copy files (except node_modules), and set permissions
echo -e "${BLUE}Copying files from $DIR to $DEST${NC}"
[ ! -d "$DEST" ] && mkdir -m 755 $DEST
rsync -rt --delete --exclude node_modules $DIR/ $DEST
find $DEST -type f -print0 | xargs -0 chmod 664
find $DEST -type d -print0 | xargs -0 chmod 755

# conditional install for node-hid on Rpi Zero W (v1 is 32 bit)
if [[ $(uname -m) == armv6l ]]; then
  echo -e "${BLUE}Installing node-hid from source (this may take awhile)${NC}"
  (cd $DEST; npm install --build-from-source node-hid)
fi

# install all other dependencies
echo -e "${BLUE}Installing dependencies${NC}"
(cd $DEST; npm install)

echo -e "${BLUE}Updating service links${NC}"

# if present delete the service file link
[ -r /etc/systemd/system/dialserver.service ] && rm -f /etc/systemd/system/dialserver.service

# create a symlink to the service file at /etc/systemd/system/dialserver.service
[ ! -L /etc/systemd/system/dialserver.service ] && ln -s $DEST/dialserver.service /etc/systemd/system/dialserver.service

# stop the service in case we're upgrading, enable at boot and start it now
echo -e "${BLUE}Starting the service${NC}"

systemctl daemon-reload
systemctl stop dialserver.service
systemctl enable --now dialserver.service