#!/bin/sh

set -e

cleanup () {
  nvm cache clear
  nvm deactivate
  rm -rf ${NVM_DIR}/v*
  nvm unalias default
}

die () { >&2 echo "$@" ; cleanup ; exit 1; }

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

cleanup

OUTPUT="$(TERM=dumb 2>&1 nvm install --no-progress v0.12.18)"
EXPECTED_OUTPUT="Downloading and installing node v0.12.18...
Downloading https://nodejs.org/dist/v0.12.18/node-v0.12.18-linux-x64.tar.xz...
Computing checksum with sha256sum
Checksums matched!
Now using node v0.12.18 (npm v2.15.11)
Creating default alias: default -> v0.12.18 *"

[ "${OUTPUT}" = "${EXPECTED_OUTPUT}" ] || die "1: expected >
${EXPECTED_OUTPUT}<, got >
${OUTPUT}<"

cleanup

OUTPUT="$(TERM=dumb 2>&1 nvm install v0.12.18)"
EXPECTED_OUTPUT="Downloading and installing node v0.12.18...
Downloading https://nodejs.org/dist/v0.12.18/node-v0.12.18-linux-x64.tar.xz...
######################################################################### 100.0%
Computing checksum with sha256sum
Checksums matched!
Now using node v0.12.18 (npm v2.15.11)
Creating default alias: default -> v0.12.18 *"

[ "$(echo "${OUTPUT}" | wc -l)" = "$(echo "${EXPECTED_OUTPUT}" | wc -l)" ] || die "2: expected 7 lines, got $(echo "${OUTPUT}" | wc -l)"



[ "${OUTPUT}" = "${EXPECTED_OUTPUT}" ] || {
  echo "$OUTPUT" |
while IFS= read -r output_line && IFS= read -r expected_line <&3; do
    line_number=$((line_number + 1))
    if [ "${output_line}" != "${expected_line}" ]; then
        echo "Difference on line ${line_number}:"
        echo "Output:    ${output_line}"
        echo "Expected:  ${expected_line}"
    fi
done 3<<EOF
$EXPECTED_OUTPUT
EOF

  die "4: expected >
${EXPECTED_OUTPUT}<, got >
${OUTPUT}<"
}

cleanup