#!/bin/sh

set -ex

die () { echo "$@" ; cleanup ; exit 1; }

cleanup() {
  cd "${ORIG_PWD}" 2>/dev/null || true
  [ -n "${TMP_DIR-}" ] && rm -rf "${TMP_DIR}"
}

export NVM_DIR="$(cd ../.. && pwd)"

: nvm.sh
\. ../../nvm.sh

\. ../common.sh

ORIG_PWD="$(pwd)"

# Run from a fresh, empty directory so no ambient .nvmrc above the test dir
# can satisfy the lookup and mask the warning.
TMP_DIR="$(mktemp -d)"
cd "${TMP_DIR}" || die "could not cd to temp dir"

EXEC_WARNING='WARNING: `nvm exec` was invoked without a version argument and without an .nvmrc file.'
RUN_WARNING='WARNING: `nvm run` was invoked without a version argument and without an .nvmrc file.'

for FILE in 123.js v1.23.js 1.2.3.js; do
  set +ex # needed for stderr
  RUN_STDERR="$(nvm run "${FILE}" </dev/null 2>&1 1>/dev/null)"
  set -ex
  case "${RUN_STDERR}" in
    *"N/A: version \"v${FILE#v}\""*) die "'nvm run ${FILE}' treated the file as a version; got >${RUN_STDERR}<" ;;
    *"${RUN_WARNING}"*) ;;
    *) die "'nvm run ${FILE}' did not fall back with a warning; got >${RUN_STDERR}<" ;;
  esac
done

set +ex # needed for stderr
EXEC_STDERR="$(nvm exec 1.2.3.js </dev/null 2>&1 1>/dev/null)"
set -ex
case "${EXEC_STDERR}" in
  *'N/A: version "v1.2.3.js"'*) die "'nvm exec 1.2.3.js' treated the command as a version; got >${EXEC_STDERR}<" ;;
  *"${EXEC_WARNING}"*) ;;
  *) die "'nvm exec 1.2.3.js' did not fall back with a warning; got >${EXEC_STDERR}<" ;;
esac

# an uninstalled prerelease is still a version, not a file
set +ex # needed for stderr
RUN_RC_STDERR="$(nvm run v999.0.0-rc.1 app.js </dev/null 2>&1 1>/dev/null)"
set -ex
case "${RUN_RC_STDERR}" in
  *'N/A: version "v999.0.0-rc.1" is not yet installed.'*) ;;
  *) die "'nvm run v999.0.0-rc.1' did not report the prerelease as not installed; got >${RUN_RC_STDERR}<" ;;
esac

set +ex # needed for stderr
EXEC_RC_STDERR="$(nvm exec v999.0.0-rc.1 node </dev/null 2>&1 1>/dev/null)"
set -ex
case "${EXEC_RC_STDERR}" in
  *'N/A: version "v999.0.0-rc.1" is not yet installed.'*) ;;
  *) die "'nvm exec v999.0.0-rc.1' did not report the prerelease as not installed; got >${EXEC_RC_STDERR}<" ;;
esac

cleanup