#!/bin/bash
# Entrypoint: VNC password setup + DNS fix + systemd

set -euo pipefail

# Ensure all shared scripts are executable (permissions may reset after git pull/appstore update)
chmod +x /shared/*.sh /shared/cisco-vpn /root/.vnc/xstartup 2>/dev/null || true

# Symlink shared scripts into /opt/scripts/ so systemd services (vnc.service) find them
mkdir -p /opt/scripts
ln -sf /shared/startup-vnc.sh /opt/scripts/startup-vnc.sh

# Setup TigerVNC password file from env var (passed by runtipi)
# TigerVNC expects /root/.vnc/passwd when using SecurityTypes=VncAuth.
if [ -n "${VNC_PASSWORD:-}" ]; then
    mkdir -p /root/.vnc
    printf '%s\n%s\n' "$VNC_PASSWORD" "$VNC_PASSWORD" | vncpasswd -f > /root/.vnc/passwd
    chmod 600 /root/.vnc/passwd
fi

cp /etc/resolv.conf /tmp/resolv.conf.bak 2>/dev/null || true
cp /etc/hosts /tmp/hosts.bak 2>/dev/null || true
umount /etc/resolv.conf 2>/dev/null || true
umount /etc/hosts 2>/dev/null || true
cat /tmp/resolv.conf.bak > /etc/resolv.conf 2>/dev/null || echo "nameserver 8.8.8.8" > /etc/resolv.conf
cat /tmp/hosts.bak > /etc/hosts 2>/dev/null || echo "127.0.0.1 localhost" > /etc/hosts

echo 1 > /proc/sys/net/ipv4/ip_forward
echo "[entrypoint] IP forwarding enabled"

exec /sbin/init
