#!/bin/bash

verlte() {
  [ "$1" = "`echo -e "$1\n$2" | sort -V | head -n1`" ]
}

nodeMinVersion="8.0.0"
npmMinVersion="3.0.0"

actualNodeVersion=$(node --version | tr -d "v")
actualNpmVersion=$(npm --version)

if verlte $actualNodeVersion $nodeMinVersion; then
  echo 'You need node >= 8'
  exit 0
fi

if verlte $actualNpmVersion $npmMinVersion; then
  echo 'You need npm >= 3'
  exit 0
fi

if ! which yarn > /dev/null; then
  echo 'You need yarn'
  exit 0
fi

if pgrep peertube > /dev/null; then
  echo 'PeerTube is running, please shut it off before upgrading'
  exit 0
fi

git pull origin $(git rev-parse --abbrev-ref HEAD) || exit -1

yarn install --pure-lockfile
npm run build

echo -e "\n\nUpgrade finished! You can restart PeerTube that may run the migration scripts."