#!/usr/bin/env bash

main() {
  if [[ $(type -t "⚡️$1") == "function" ]]; then
    ⚡️$1
  else
    ⚡️help
  fi
}

⚡️help() {
  _help-line "Show this list" "$@"
  echo Usage: "$0" SUBCOMMAND
  echo
  echo "Available subcommands:"
  for subcommand in $(_subcommands); do
    if [[ $(type ⚡️$subcommand) =~ _help-line ]]; then
      printf "\t%-20s - %s\n" "$subcommand" "$(⚡️$subcommand help-line)"
    else
      printf "\t%-20s" $subcommand
    fi
  done
}

_subcommands() {
  compgen -c ⚡️ | cut -c3-
}

_help-line() {
  if [[ "$#" == 2 && "$2" == "help-line" ]]; then
    echo "$1" && exit 0
  fi
}

main "$@"