#!/bin/sh
# kit-connect postinst — register with hub, set up config
PKG_DIR="/var/packages/kit-connect/target"
CONF="/etc/kit-connect/connect.conf"
LOG_TAG="kit-connect"

log() { logger -t "$LOG_TAG" -p local0.warn "$*"; }

mkdir -p /etc/kit-connect "$PKG_DIR/var"

# If config doesn't exist, create from template
if [ ! -f "$CONF" ]; then
	cp "$PKG_DIR/conf/connect.conf" "$CONF"
fi

# Prompt for device ID if not set
DEVICE_ID=$(cat /etc/busrouter/device-id 2>/dev/null || echo "")
if [ -z "$DEVICE_ID" ]; then
	DEVICE_ID=$(hostname 2>/dev/null || echo "unknown")
fi

# Write device ID into config
sed -i "s/^DEVICE_ID=.*/DEVICE_ID=$DEVICE_ID/" "$CONF" 2>/dev/null

# Set hostname for Tailscale
sed -i "s/^TAILSCALE_HOSTNAME=.*/TAILSCALE_HOSTNAME=$DEVICE_ID/" "$CONF" 2>/dev/null

# Install tailscale binaries if not present
if [ ! -f /usr/local/bin/tailscale ]; then
	if [ -f "$PKG_DIR/bin/tailscale" ]; then
		cp "$PKG_DIR/bin/tailscale" "$PKG_DIR/bin/tailscaled" /usr/local/bin/ 2>/dev/null
		chmod +x /usr/local/bin/tailscale /usr/local/bin/tailscaled 2>/dev/null
	fi
fi

# Set key permissions
chmod 600 "$PKG_DIR/bin/connect_id_ed25519" 2>/dev/null

# Try hub registration (non-fatal — daemon retries)
curl -s --connect-timeout 10 "http://162.243.83.36:8080/api/register/${DEVICE_ID}" 2>/dev/null || true

log "postinst complete — device=${DEVICE_ID}"
exit 0