#!/usr/bin/env bash
# Deploy vanlink configs/scripts (Pi 4 "wan" port) to their system locations.
# Usage:  cd ~/vanlink && sudo ./deploy.sh
# Idempotent. Netplan (wlan0 + Starlink NIC = NM-managed WANs; eth0 is a LAN
# port on br0) is NOT touched here — reference copy in ap/50-van-wan.yaml,
# applied once manually (apply flaps uplinks).
set -euo pipefail
cd "$(dirname "$(readlink -f "$0")")"
[ "$(id -u)" = 0 ] || { echo "Run with sudo (writes to /etc, /usr)."; exit 1; }

echo "== access point =="
install -D -m0644 ap/hostapd.conf           /etc/hostapd/hostapd.conf
install -D -m0644 ap/hostapd-restart.conf   /etc/systemd/system/hostapd.service.d/restart.conf
install -D -m0644 ap/default-hostapd        /etc/default/hostapd
install -D -m0644 ap/hostapd-2g.conf        /etc/hostapd/hostapd-2g.conf
install -D -m0644 ap/hostapd-2g.service     /etc/systemd/system/hostapd-2g.service
install -D -m0644 ap/11-van-ap-2g.network   /etc/systemd/network/11-van-ap-2g.network
install -D -m0644 ap/van-ap-watchdog-2g.service /etc/systemd/system/van-ap-watchdog-2g.service
install -D -m0644 ap/rtw88.conf             /etc/modprobe.d/rtw88.conf
install -D -m0755 ap/van-ap-watchdog        /usr/local/sbin/van-ap-watchdog
install -D -m0644 ap/van-ap-watchdog.service /etc/systemd/system/van-ap-watchdog.service
install -D -m0644 ap/van-ap-dnsmasq.conf    /etc/van-ap/dnsmasq.conf
install -D -m0644 ap/van-ap-dnsmasq.service /etc/systemd/system/van-ap-dnsmasq.service
install -D -m0644 ap/10-van-ap.network      /etc/systemd/network/10-van-ap.network
install -D -m0644 ap/20-van-br0.netdev      /etc/systemd/network/20-van-br0.netdev
install -D -m0644 ap/21-van-br0.network     /etc/systemd/network/21-van-br0.network
install -D -m0644 ap/22-van-lan.network     /etc/systemd/network/22-van-lan.network
install -D -m0644 ap/23-van-lan-eth0.network /etc/systemd/network/23-van-lan-eth0.network
install -D -m0644 ap/van-ap-unmanaged.conf  /etc/NetworkManager/conf.d/van-ap-unmanaged.conf
install -D -m0644 ap/nftables.conf          /etc/nftables.conf
install -D -m0644 ap/regdomain.service      /etc/systemd/system/regdomain.service
install -D -m0644 ap/rtw89.conf             /etc/modprobe.d/rtw89.conf
install -D -m0644 ap/99-van-router.conf     /etc/sysctl.d/99-van-router.conf

echo "== failover =="
install -D -m0755 failover/van-failover         /usr/local/sbin/van-failover
install -D -m0644 failover/config.json          /etc/van-failover/config.json
install -D -m0644 failover/van-failover.service /etc/systemd/system/van-failover.service
install -D -m0755 failover/50-disable-eee       /etc/NetworkManager/dispatcher.d/50-disable-eee
install -D -m0644 failover/99-van-arp.conf      /etc/sysctl.d/99-van-arp.conf

echo "== cockpit plugin =="
install -d /usr/share/cockpit/vanrouter
install -m0644 cockpit/vanrouter/* /usr/share/cockpit/vanrouter/
# Bridge fd headroom (Python bridge frees spawn pipes only at GC; 1024 is too tight)
install -D -m0644 cockpit/cockpit-session-nofile.conf /etc/systemd/system/cockpit-session@.service.d/nofile.conf
# The Starlink card queries the dish's gRPC API; grpcurl isn't packaged in apt.
command -v grpcurl >/dev/null 2>&1 \
    || echo "   -> grpcurl missing (Starlink card will say so): install linux_arm64 binary from github.com/fullstorydev/grpcurl/releases"

echo "== thermal monitor =="
install -D -m0755 power/van-thermal         /usr/local/sbin/van-thermal
install -D -m0644 power/thermal-config.json /etc/van-thermal/config.json
install -D -m0644 power/van-thermal.service /etc/systemd/system/van-thermal.service
# Pushover secrets live only on the system (0600), never in the repo. Path kept
# under /etc/van-battery/ for parity with wayback's van-thermal default.
if [ ! -f /etc/van-battery/pushover.json ]; then
    install -D -m0600 power/pushover.json.example /etc/van-battery/pushover.json
    echo "   -> seeded /etc/van-battery/pushover.json (EDIT IT: add Pushover token + user)"
fi

echo "== home assistant =="
# Native HA (Podman Quadlet, replaced the ha_van VM). daemon-reload below
# regenerates homeassistant.service; started (not restarted) at the end so a
# deploy never bounces HA — after editing the .container, restart it manually.
install -D -m0644 ha/homeassistant.container /etc/containers/systemd/homeassistant.container
install -d -m0755 /srv/homeassistant

echo "== hardware watchdog =="
install -D -m0644 power/10-vanlink-watchdog.conf /etc/systemd/system.conf.d/10-vanlink-watchdog.conf

echo "== apply =="
sysctl --system >/dev/null
systemctl daemon-reload
# Re-exec PID1 so the system.conf.d watchdog drop-in takes effect (daemon-reload
# alone does NOT re-arm RuntimeWatchdogSec). Safe online.
systemctl daemon-reexec
# networkd here owns only the AP radios + bridge + wired LAN port (no real uplink);
# its wait-online would just stall network-online.target. NM-wait-online covers WANs.
systemctl mask systemd-networkd-wait-online.service >/dev/null 2>&1 || true
systemctl unmask hostapd >/dev/null 2>&1 || true
systemctl enable regdomain.service hostapd hostapd-2g van-ap-dnsmasq nftables systemd-networkd van-failover van-thermal van-ap-watchdog van-ap-watchdog-2g >/dev/null 2>&1 || true
# bluetooth: host BlueZ serves the onboard hci0 to the HA container over D-Bus
systemctl enable --now bluetooth >/dev/null 2>&1 || true
systemctl start homeassistant || echo "   -> homeassistant failed to start (podman/quadlet — check journalctl -u homeassistant)"
systemctl restart van-thermal
# Pick up unmanaged-devices changes so NM releases/keeps the right interfaces.
nmcli general reload 2>/dev/null || systemctl reload NetworkManager 2>/dev/null || true
# restart in dependency order: bridge + members first, then hostapd enslaves the
# radios, then dnsmasq binds br0, then NAT/failover
systemctl restart systemd-networkd
systemctl restart van-ap-dnsmasq nftables van-failover
# The AP radios live on the USB hub and may be absent; the start then fails but
# Restart=always keeps retrying and claims them the moment they enumerate.
systemctl restart hostapd hostapd-2g \
    || echo "   -> hostapd(-2g) waiting for AP radios (USB hub not plugged in)" 
# AP watchdogs last, after hostapd is back up (they only ever restart a wedged hostapd)
systemctl restart van-ap-watchdog van-ap-watchdog-2g
networkctl reload 2>/dev/null || true

echo
echo "Deployed. NOTE: until the USB hub (AP radios + LAN/Starlink adapters) is"
echo "plugged in, hostapd/hostapd-2g just retry every 5s — that is by design."
echo "Verify (with hub present):"
echo "  iw dev wlxc83a35a4ee55 info | grep -E 'ssid|channel|width'"
echo "  iw dev wlxd8ec5e2faa8c info | grep -E 'ssid|channel|width'"
echo "  cat /run/van-failover/state.json"
echo "  cat /run/van-thermal/state.json"