#!/bin/sh
# vmix agent: LaunchDaemon that runs at every boot as root. If a volume named
# VMIX carrying vmix-run.sh is attached, run it, record the result on the
# volume and power off. Without the volume it is a no-op (normal boot).
# This is the macOS counterpart of the Windows Audit Mode RunOnce script.
LOG=/var/log/vmix-agent.log
exec >>"$LOG" 2>&1
echo "=== vmix agent: $(date) ==="
V=/Volumes/VMIX
i=0
while [ ! -f "$V/vmix-run.sh" ] && [ $i -lt 60 ]; do
  diskutil mount VMIX >/dev/null 2>&1
  sleep 2
  i=$((i + 1))
done
if [ ! -f "$V/vmix-run.sh" ]; then
  echo "vmix agent: no VMIX volume, normal boot"
  exit 0
fi
echo "vmix agent: running vmix-run.sh"
cd "$V" || exit 1
sh "$V/vmix-run.sh" >"$V/vmix-run.log" 2>&1
rc=$?
echo "vmix agent: vmix-run.sh exited $rc"
echo "$rc" >"$V/vmix-run.status"
cp "$LOG" "$V/vmix-agent.log" 2>/dev/null
sync
sleep 2
diskutil unmount force "$V" >/dev/null 2>&1
shutdown -h now