#!/bin/bash
#
# Uninstalls device manager from the local machine.
#
# Usage:
#
# ./dmuninstall <install parent dir>

set -e

usage() {
  echo "usage:"
  echo "./dmuninstall [--single_user] <install parent dir>"
}

main() {
  if [[ "$1" == "--single_user" ]]; then
    local -r SINGLE_USER=true
    shift
  else
    local -r SINGLE_USER=false
  fi
  local -r INSTALL_PARENT_DIR="$1"
  if [[ -z "${INSTALL_PARENT_DIR}" ]]; then
    echo 'No local install directory specified!'
    usage
    exit 1
  fi
  shift
  local -r INSTALL_DIR="${INSTALL_PARENT_DIR}/device_manager"
  if [[ ! -d "${INSTALL_DIR}" ]]; then
    echo "${INSTALL_DIR} does not exist or is not a directory!"
    exit 1
  fi

  # Tell the device manager to uninstall itself.
  local -r DM_ROOT="${INSTALL_DIR}/dmroot"
  echo "Uninstalling device manager from ${DM_ROOT} ..."

  local -r BIN_INSTALL="${INSTALL_DIR}/bin"

  VEYRON_DM_CURRENT="${INSTALL_DIR}/deviced.curr" VEYRON_DM_ROOT="${DM_ROOT}" VEYRON_DM_HELPER="unused" "${BIN_INSTALL}/deviced" --uninstall
  echo "Device manager uninstalled."

  if [[ ${SINGLE_USER} == false ]]; then
    sudo rm -rf "${INSTALL_DIR}"
  else
    rm -rf "${INSTALL_DIR}"
  fi
  echo "Removed ${INSTALL_DIR}"
}

main "$@"