#!/usr/bin/env bash

function error_handler() {
  >&2 echo "Exited with BAD EXIT CODE '${2}' in ${0} script at line: ${1}."
  exit "$2"
}
trap 'error_handler ${LINENO} $?' ERR
set -o errtrace -o errexit -o nounset -o pipefail

if [[ -z "${SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR:-}" ]]; then
  script_dir="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"

  sibling_to_arena_root="${script_dir}/../../../sample-process-models"
  SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR="$sibling_to_arena_root"
  if [[ ! -d "$SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR" ]]; then
    sibling_to_backend_root="${script_dir}/../../sample-process-models"
    SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR="$sibling_to_backend_root"
    if [[ ! -d "$SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR" ]]; then
      SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR="$sibling_to_arena_root"
      process_model_clone_url="https://github.com/sartography/sample-process-models.git"
      >&2 echo "could not find process model dir. cloning ${process_model_clone_url} to ${SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR}"
      git clone "$process_model_clone_url" "$SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR"
    fi
  fi
fi

realpath "$SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR"