#!/usr/bin/env bash
# One-time install of the yaris-obd phone/home/local-hotspot auto-switch
# watcher on the Pi. Run this ON THE PI as the `yaris` user (needs sudo):
#   cd /home/yaris/app/yaris-obd && bash deploy/install_netwatch.sh
#
# Prerequisite: the "home-wifi" and "Hotspot" NetworkManager profiles must
# already exist (see PLAN.md Phase 6). The optional "phone-hotspot" profile is
# created through the Settings page.
set -euo pipefail

REPO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"

sudo systemctl stop yaris-uplink-wait.service 2>/dev/null || true
sudo systemctl stop yaris-netwatch.timer yaris-netwatch.service 2>/dev/null || true
sudo rm -f /usr/local/bin/yaris-netwatch.sh
sudo install -m 755 "$REPO_DIR/deploy/yaris_uplink.py" /usr/local/bin/yaris-uplink
sudo install -m 440 "$REPO_DIR/deploy/yaris-uplink.sudoers" /etc/sudoers.d/yaris-uplink
sudo visudo -cf /etc/sudoers.d/yaris-uplink
sudo install -m 644 "$REPO_DIR/deploy/yaris-hotspot-dns.conf" \
    /etc/NetworkManager/dnsmasq-shared.d/yaris-hotspot-dns.conf
sudo install -m 755 "$REPO_DIR/deploy/90-yaris-uplink" \
    /etc/NetworkManager/dispatcher.d/90-yaris-uplink
sudo nmcli connection modify Hotspot ipv4.method shared ipv4.addresses 10.42.0.1/24
if nmcli connection show phone-hotspot >/dev/null 2>&1; then
    sudo nmcli connection modify phone-hotspot \
        ipv4.dhcp-send-hostname yes ipv4.dhcp-hostname yaris \
        802-11-wireless.mtu 1400
fi
sudo cp "$REPO_DIR/deploy/yaris-netwatch.service" /etc/systemd/system/yaris-netwatch.service
sudo cp "$REPO_DIR/deploy/yaris-netwatch.timer" /etc/systemd/system/yaris-netwatch.timer
sudo cp "$REPO_DIR/deploy/yaris-uplink-wait.service" /etc/systemd/system/yaris-uplink-wait.service
sudo systemctl daemon-reload
sudo systemctl enable --now yaris-netwatch.timer

echo "Done. Check status with: systemctl status yaris-netwatch.timer"
echo "Logs: journalctl -t yaris-netwatch -f"