#!/usr/bin/env bash

# This should generally be run via `systemctl --user start mount-nas` instead
# of run directly. See `~/.config/systemd/user/mount-nas.service`. ---AG

set -euo pipefail

export SSH_AUTH_SOCK=/home/andrew/.ssh/ssh_auth_sock

# Wait until the ssh agent socket exists.
until [ -S "$SSH_AUTH_SOCK" ]; do
  echo "waiting for SSH_AUTH_SOCK=$SSH_AUTH_SOCK"
  sleep 1
done

# Wait until the agent has at least one key loaded.
until ssh-add -l >/dev/null 2>&1; do
  echo "waiting for ssh-agent keys"
  sleep 1
done

# Wait until the host resolves.
until getent ahosts home.burntsushi.net >/dev/null 2>&1; do
  echo "waiting for DNS: home.burntsushi.net"
  sleep 2
done

# Wait until SSH auth actually works.
until ssh -o BatchMode=yes -o ConnectTimeout=3 nas true >/dev/null 2>&1; do
  echo "waiting for SSH auth to nas"
  sleep 2
done

echo "done waiting; connecting to NAS..."

# For our media PCs, we mount the NAS as read-only.
# Why? Because I have a 5.5 year old (as of 2026-06-15)
# and sometimes he does wild things.
read_only=
if is-media; then
  read_only="-o ro"
fi
sshfs nas:/m /m \
  -f \
  $read_only \
  -o allow_other \
  -o reconnect \
  -o follow_symlinks \
  -o writeback_cache=no \
  -o kernel_cache \
  -o ServerAliveInterval=15 \
  -o ServerAliveCountMax=3 \
  -o BatchMode=yes &
sshfs_pid=$!

until findmnt -T /m >/dev/null 2>&1; do
  if ! kill -0 "$sshfs_pid" 2>/dev/null; then
    wait "$sshfs_pid"
    exit $?
  fi
  echo "waiting for /m to be mounted"
  sleep 1
done

echo "NAS is mounted"
A self 'NAS is mounted'
wait "$sshfs_pid"