# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: 2022 The Gleam contributors

#!/bin/sh
set -eu

PACKAGE=$PACKAGE_NAME_FROM_GLEAM
BASE=$(dirname "$0")
COMMAND="${1-default}"

run() {
  exec erl \
    -pa "$BASE"/*/ebin \
    -eval "$PACKAGE@@main:run($PACKAGE)" \
    -noshell \
    -extra "$@"
}

shell() {
  erl -pa "$BASE"/*/ebin
}

case "$COMMAND" in
run)
  shift
  run "$@"
  ;;

shell)
  shell
  ;;

*)
  echo "usage:" >&2
  echo "  entrypoint.sh \$COMMAND" >&2
  echo "" >&2
  echo "commands:" >&2
  echo "  run    Run the project main function" >&2
  echo "  shell  Run an Erlang shell" >&2
  exit 1
  ;;
esac
