#!/bin/bash
# Run this ON a Raspberry Pi to make it a wireless AxiDraw bridge for Inkpilot.
# Plug the AxiDraw into the Pi's USB, power both, and the app finds it on Wi-Fi.
set -e
HERE="$(cd "$(dirname "$0")" && pwd)"
echo "Installing what the bridge needs..."
sudo apt-get update -y >/dev/null
sudo apt-get install -y python3 avahi-utils >/dev/null
sudo mkdir -p /opt/inkpilot
sudo cp "$HERE/inkpilot_bridge.py" /opt/inkpilot/inkpilot_bridge.py
sudo usermod -a -G dialout "$USER"
sudo tee /etc/systemd/system/inkpilot-bridge.service >/dev/null <<UNIT
[Unit]
Description=Inkpilot AxiDraw bridge
After=network-online.target avahi-daemon.service
Wants=network-online.target

[Service]
ExecStart=/usr/bin/python3 /opt/inkpilot/inkpilot_bridge.py --name "AxiDraw (wireless)"
Restart=always
RestartSec=3
User=$USER
SupplementaryGroups=dialout

[Install]
WantedBy=multi-user.target
UNIT
sudo systemctl daemon-reload
sudo systemctl enable --now inkpilot-bridge >/dev/null 2>&1
sleep 2
echo
echo "Done. The bridge starts by itself whenever the Pi turns on."
echo "In the app: Plotter tab, Connect, then tap \"AxiDraw (wireless)\"."
echo "Check on it any time with: systemctl status inkpilot-bridge"