#!/usr/bin/env bash

THIS="$(dirname "$(readlink -fm "$0")")"
FANCYFY="client"
CURRENT_FANCYFY=""
DELETE=false
MOVE=false
PRESENT=false

_bashrc_present() {
  if [ ! -z "$(grep "#REF:bashrc_overrides:REF" ~/.bashrc)" ]; then
    echo true
    exit
  fi
  echo false
}

_arguments() {
  if [ "$(_bashrc_present)" = true ]; then
    PRESENT=true
    CURRENT_FANCYFY="$(grep TERMINAL_FANCYFY ~/.bashrc | sed 's/.*=//')"
  fi
  for PARM in "$@"; do
    if [ "${PARM}" = "--server" ]; then
      FANCYFY="server"
    elif [ "${PARM}" = "--delete" ]; then
      DELETE=true
    elif [ "${PARM}" = "--move" ]; then
      MOVE=true
    elif [ "${PARM}" = "-h" ] || [ "${PARM}" = "--help" ]; then
      _help
      exit 0
    fi
  done
}

_help() {
  echo "Usage: $(readlink -fm "$0") [-h | --help] [--cleanup]"
  echo
  echo "Options:"
  echo "  -h | --help"
  echo "    Prints this help message and quits"
  echo "  --force"
  echo "    Force the reinstallation of the files"
  echo "  --delete"
  echo "    Delete the reference in ${BASHRC}"
  echo "  --move"
  echo "    Create a new reference if the location of this folder has been changed"
  echo "  --server"
  echo "    Customizes the terminal feel for a server installation"
  echo
}

_delete() {
  sed -i '/REF:bashrc_overrides:REF/{N;N;d}' ~/.bashrc
}

_bashrc_ref() {
  echo "#REF:bashrc_overrides:REF" >> ~/.bashrc
  echo "export TERMINAL_FANCYFY=${1}" >> ~/.bashrc
  echo ". ${THIS}/bashrc_overrides/_all" >> ~/.bashrc
}

_move() {
  _delete
  _bashrc_ref "${FANCYFY}"
}

_main() {
  _arguments "$@"

  if [ "${DELETE}" = true ]; then
    _delete
    echo "removed custom configs"
  elif [ "${MOVE}" = true ]; then
    if [ "${PRESENT}" = false ]; then
      _bashrc_ref "${FANCYFY}"
      echo "unable to move to current directory"
      echo "bash overrides not previously present"
      echo "adding bash overrides..."
      echo
    else
      _move
      echo "moved custom config directory to ${THIS}"
      echo
    fi
  elif [ "${PRESENT}" = true ]; then
    if [ "${CURRENT_FANCYFY}" != "${FANCYFY}" ]; then
      sed -i "s/TERMINAL_FANCYFY=${CURRENT_FANCYFY}/TERMINAL_FANCYFY=${FANCYFY}/" ~/.bashrc
      echo "customized fancyfying"
      echo
    else
      echo "bash overrides already in place"
      echo "skipping..."
      echo
    fi
  else
    _bashrc_ref "${FANCYFY}"
    echo "bash overrides added"
    echo
  fi
}

_main "$@"