#!/usr/bin/env bash
#
#+  Usage: check-job-board-tags [-h|--help|-l|--list-only]
#+  -
#+  Performs a series of assertions about the relationship between
#+  different stacks' languages and features.  Some stacks are intended to be
#+  subsets of others.  Some stacks are meant to be mutually exclusive.  These
#+  relationships are checked via the assert-job-board-tags script, which
#+  accepts batch inputs created by *this* script.
#+  -

set -o errexit

main() {
  set -o pipefail

  case "$1" in
  -h | --help | help)
    __usage
    exit 0
    ;;
  -l | --list-only)
    CHECK_JOB_BOARD_TAGS_LIST_ONLY=1
    ;;
  esac

  COMBOS=(
    languages:excl:opal:stevonnie
    languages:excl:sardonyx:stevonnie
    languages:excl:sardonyx:opal
    features:incl:sardonyx:opal
  )

  cd "$(dirname "$(dirname "${BASH_SOURCE[0]}")")"

  if [[ "${CHECK_JOB_BOARD_TAGS_LIST_ONLY}" ]]; then
    for cmd in "${COMBOS[@]}"; do
      echo "${cmd//:/ }"
    done
    exit 0
  fi

  BATCH_INPUT=""
  for cmd in "${COMBOS[@]}"; do
    IFS=':' read -r -a parts <<<"${cmd}"
    rec="${parts[0]}:${parts[1]}"
    rec="${rec}:./cookbooks/travis_ci_${parts[2]}/attributes/default.rb"
    rec="${rec}:./cookbooks/travis_ci_${parts[3]}/attributes/default.rb"
    BATCH_INPUT="$BATCH_INPUT
${rec}
"
  done

  echo "${BATCH_INPUT}" | ./bin/assert-job-board-tags -i |
    grep --color -E '^✘:.*|$'
}

__usage() {
  awk '/^#\+  / {
    sub(/^#\+  /, "", $0) ;
    sub(/-$/, "", $0) ;
    print $0
  }' \
    "${0}"
}

main "$@"