#!/bin/env sh

_repeat() {
  local start=1
  local end=${1:-80}
  local str="${2:-=}"
  local range=$(seq $start $end)
  for i in $range; do echo -n "${str}"; done
}

_header() {
  local length="$1"
  echo -n "/="
  _repeat ${length} "="
  echo "=\\"
}
_value() {
  local value="$1"
  echo -n "| "
  echo -n ${value}
  echo " |"
}
_footer() {
  local length="$1"
  echo -n "\\="
  _repeat ${length} "="
  echo "=/"
}

display() {
  local value="$1"
  _header ${#value}
  _value "${value}"
  _footer ${#value}
}

runfile() {
  local command="$1"
  local commandName=$(basename $command)
  local prompt="Do you wish to run $commandName? [Ynq]"
  local display="Executing $commandName"

  local promptLength=$((${#prompt}))
  local displayLength=${#display}

  local maxWidth=$((promptLength > displayLength ? promptLength : displayLength))

  _header ${maxWidth}

  read -p "| $prompt |" -n 1 -r -s
  echo

  if [[ $REPLY =~ ^[Nn]$ ]]; then
    _footer ${maxWidth}
    return
  fi

  if [[ $REPLY =~ ^[Qq]$ ]]; then
    _footer ${maxWidth}
    display "Exiting..."
    exit 0
  fi

  echo -n "| $display"
  _repeat $((maxWidth - displayLength)) " "
  echo " |"

  _footer ${maxWidth}

  if ! "$command"; then
    echo "Error: bootstrap '$command' failed" >&2
    exit 1
  fi
}