#!/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 )"

  SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR="${script_dir}/../../../sample-process-models"
  if [[ ! -d "$SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR" ]]; then
    SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR="${script_dir}/../../sample-process-models"
    if [[ ! -d "$SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR" ]]; then
      >&2 echo "ERROR: Could not find a location for the sample processes. Last tried: $SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR"
      exit 1
    fi
  fi

  pushd "$SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR" >/dev/null 2>&1
  if [[ "$(git rev-parse --abbrev-ref HEAD)" == "main" ]]; then
    >&2 echo "ERROR: please do not use the main branch of sample-process-models. use dev"
    exit 1
  fi
  popd >/dev/null 2>&1
fi

realpath "$SPIFFWORKFLOW_BACKEND_BPMN_SPEC_ABSOLUTE_DIR"