scaladoc

#!/bin/bash

usage() {
  echo 'Usage: scaladoc [library] [term]'
  echo ''
  echo 'library    Defaults to scala-lang. Can be a handful of useful libraries, '
  echo '           eg. akka (or akka-actor), akka-http, spray-json, etc'
  echo ''
  echo 'term       An optional term to search for in the docs'
}

if [[ "$1" == '--help' ]]; then
  usage
  exit 0
fi

_open() {
  if which xdg-open &> /dev/null; then
    xdg-open "$@"
    return
  fi

  if which open &> /dev/null; then
    open "$@"
    return
  fi
}

_urlencode() {
  python -c "from urllib.parse import quote_plus;print(quote_plus('''$1'''))"
}

DOCROOT=''
VERSION=current
LANDING=''
SEARCH_TERM=$(_urlencode "$2")
SUPPORTS_SEARCH=1

case "$1" in
  scala|scala-lang|stdlib|std|'')
    DOCROOT='https://www.scala-lang.org/api'
    ;;
  akka|akka-actor)
    DOCROOT='https://doc.akka.io/api/akka'
    LANDING='akka/actor/index.html'
    ;;
  akka-stream|akka-streams)
    DOCROOT='https://doc.akka.io/api/akka'
    LANDING='akka/stream/index.html'
    ;;
  akka-http)
    DOCROOT='https://doc.akka.io/api/akka-http'
    LANDING='akka/http/scaladsl/index.html'
    ;;
  alpakka)
    DOCROOT='https://developer.lightbend.com/docs/api/alpakka'
    LANDING='akka/stream/alpakka/index.html'
    ;;
  spray-json)
    DOCROOT='https://www.javadoc.io/doc/io.spray/spray-json_2.12'
    VERSION='1.3.4'
    ;;
  scalatest)
    DOCROOT='http://doc.scalatest.org/'
    VERSION='1.8'
    ;;
  *)
    echo "Unrecognised library $1" >&2
    exit 1
    ;;
esac

_open "$DOCROOT/$VERSION/$LANDING?search=$SEARCH_TERM"