#! bash oh-my-bash.module
# This completion setting seems to be only found in Oh My Bash.
#------------------------------------------------------------------------------
function __gradle {
  local cur=${COMP_WORDS[COMP_CWORD]}
  local tasks=''
  local cache_dir=$HOME/.gradle/completion_cache

  case $OSTYPE in
  darwin*)
    local checksum_command="find . -name build.gradle -print0 | xargs -0 md5 -q | md5 -q"
    ;;
  *)
    local checksum_command="find . -name build.gradle -print0 | xargs -0 md5sum | md5sum | cut -d ' ' -f 1"
    ;;
  esac
  local parsing_command="gradle --console=plain --quiet tasks | grep -v Rules | sed -nE -e 's/^([a-zA-Z]+)($| - .+)/\1/p'"

  mkdir -p "$cache_dir"

  local gradle_files_checksum='no_cache_file'
  if [[ -f build.gradle ]]; then
    gradle_files_checksum=$(eval "$checksum_command")
    if [[ -f $cache_dir/$gradle_files_checksum ]]; then
      newest_gradle_file=$(find . -type f -name build.gradle -newer "$cache_dir/$gradle_files_checksum")
      if [[ $newest_gradle_file ]]; then
        tasks=$(eval "$parsing_command")
        [[ $tasks ]] && _omb_util_print "$tasks" > "$cache_dir/$gradle_files_checksum"
      else
        tasks=$(< "$cache_dir/$gradle_files_checksum")
        touch "$cache_dir/$gradle_files_checksum"
      fi
    else
      tasks=$(eval "$parsing_command")
      [[ $tasks ]] && _omb_util_print "$tasks" > "$cache_dir/$gradle_files_checksum"
    fi
  else
    tasks=$(eval "$parsing_command")
    [[ $tasks ]] && _omb_util_print "$tasks" > "$cache_dir/$gradle_files_checksum"
  fi
  COMPREPLY=($(compgen -W "$tasks" -- "$cur"))
}

function __clear_gradle_cache {
  local cache_dir=$HOME/.gradle/completion_cache
  [[ -d $cache_dir ]] && find "$cache_dir" -type f -mtime +7 -exec rm -f {} \;
}

__clear_gradle_cache

complete -F __gradle gradle
complete -F __gradle gradlew
complete -F __gradle ./gradlew