#!/usr/bin/env bash
# serve-web.sh — start (or restart) the static file server on the VPS.
# Runs `npx serve` in the background, logs to ~/waste-www.log.
#
# SETUP: copy this file to serve-web.sh (gitignored) and set HOST below.
#
# Usage:
#   ./serve-web.sh
#
# Optional env vars:
#   HOST        SSH target (user@host)  (required — edit below)
#   REMOTE_DIR  path on VPS            (default: ~/waste-www)
#   PORT        local port on VPS      (default: 1337)

set -euo pipefail

HOST="${HOST:-user@YOUR_VPS_IP}"           # ← edit this
REMOTE_DIR="${REMOTE_DIR:-~/waste-www}"
REMOTE_LOG="~/waste-www.log"
REMOTE_PID="~/waste-www.pid"
PORT="${PORT:-1337}"

if [[ "$HOST" == *YOUR_VPS_IP* ]]; then
    echo "error: edit HOST in this script (or export HOST=user@your-vps before running)" >&2
    exit 1
fi

ssh "$HOST" bash <<EOF
  if [ -f $REMOTE_PID ]; then
    kill \$(cat $REMOTE_PID) 2>/dev/null || true
    rm -f $REMOTE_PID
  fi

  echo "[\$(date)] starting npx serve on port $PORT" >> $REMOTE_LOG
  nohup npx serve -s $REMOTE_DIR -l $PORT >> $REMOTE_LOG 2>&1 &
  echo \$! > $REMOTE_PID
  echo "→ started (pid \$(cat $REMOTE_PID)), logging to $REMOTE_LOG"
EOF