#!/bin/sh
# /usr/bin/etherpad - thin wrapper that runs Etherpad in production mode.
# Invoked by the etherpad.service systemd unit.
set -e

APP_DIR="${ETHERPAD_DIR:-/opt/etherpad}"
cd "${APP_DIR}"

: "${NODE_ENV:=production}"
export NODE_ENV
export ETHERPAD_PRODUCTION=true

# Resolve `node` explicitly to the apt-installed binary (the .deb declares
# `Depends: nodejs (>= 22)`, which always lands at /usr/bin/node). Relying
# on PATH would let a stray /usr/local/bin/node — e.g. an older nvm or
# toolcache install — shadow the version we actually require, and the
# server would crash on startup with "Node 20.x is not supported".
NODE_BIN=/usr/bin/node
[ -x "${NODE_BIN}" ] || NODE_BIN=$(command -v node) \
  || { echo "etherpad: node not found (install the 'nodejs' package)" >&2; exit 1; }

# Run the server through tsx's CommonJS hook — Etherpad's prod entrypoint
# (src/node/server.ts) uses `exports.start = ...`, which fails under the
# ESM loader. Mirrors the `prod` script in src/package.json.
exec "${NODE_BIN}" \
    --require "${APP_DIR}/src/node_modules/tsx/dist/cjs/index.cjs" \
    "${APP_DIR}/src/node/server.ts" \
    "$@"