#!/bin/sh

. ../../../nvm.sh
. ../../common.sh

die () { echo $@ ; cleanup ; exit 1; }
cleanup () {
  rm -rf "$(nvm_alias_path)/stable"
  rm -rf "$(nvm_alias_path)/unstable"
  rm -rf "$(nvm_alias_path)/node"
  rm -rf "$(nvm_alias_path)/iojs"
  rm -rf "${NVM_DIR}/v0.8.1"
  rm -rf "${NVM_DIR}/v0.9.1"
  rm -rf "${NVM_DIR}/versions/io.js/v0.2.1"
}

mkdir "${NVM_DIR}/v0.8.1"
mkdir "${NVM_DIR}/v0.9.1"
mkdir -p "${NVM_DIR}/versions/io.js/v0.2.1"

EXPECTED_STABLE="$(nvm_print_implicit_alias local stable)"
STABLE_VERSION="$(nvm_version "$EXPECTED_STABLE")"

EXPECTED_UNSTABLE="$(nvm_print_implicit_alias local unstable)"
UNSTABLE_VERSION="$(nvm_version "$EXPECTED_UNSTABLE")"

[ "_$STABLE_VERSION" != "_$UNSTABLE_VERSION" ] \
  || die "stable and unstable versions are the same!"

nvm alias stable "$EXPECTED_UNSTABLE"
nvm alias unstable "$EXPECTED_STABLE"
nvm alias node stable
nvm alias iojs unstable

NVM_ALIAS_OUTPUT=$(nvm alias | strip_colors)

echo "$NVM_ALIAS_OUTPUT" | command grep -F "stable -> $EXPECTED_UNSTABLE (-> $UNSTABLE_VERSION)" \
  || die "nvm alias did not contain the overridden 'stable' alias; got '$NVM_ALIAS_OUTPUT'"

echo "$NVM_ALIAS_OUTPUT" | command grep -F "unstable -> $EXPECTED_STABLE (-> $STABLE_VERSION)" \
  || die "nvm alias did not contain the overridden 'unstable' alias; got '$NVM_ALIAS_OUTPUT'"

echo "$NVM_ALIAS_OUTPUT" | command grep -F "node -> stable (-> $UNSTABLE_VERSION)" \
  || die "nvm alias did not contain the overridden 'node' alias; got '$NVM_ALIAS_OUTPUT'"

echo "$NVM_ALIAS_OUTPUT" | command grep -F "iojs -> unstable (-> $STABLE_VERSION)" \
  || die "nvm alias did not contain the overridden 'iojs' alias; got '$NVM_ALIAS_OUTPUT'"

cleanup