#!/bin/bash
 

 set -o errexit

 set -o nounset
 set -o pipefail
 
 OS_ROOT=$(dirname "${BASH_SOURCE}")/..
 source "${OS_ROOT}/hack/common.sh"
 
 cd "${OS_ROOT}"
 

 echo "===== Verifying API Swagger Spec ====="

 
 SPECROOT_REL="api/swagger-spec"
 SPECROOT="${OS_ROOT}/${SPECROOT_REL}"

 REL_TMP_PATH="_output/verify-generated-swagger-spec"

 TMP_SPECROOT="${OS_ROOT}/${REL_TMP_PATH}/${SPECROOT_REL}"
 
 echo "Generating a fresh spec..."
 if ! output=`${OS_ROOT}/hack/update-generated-swagger-spec.sh ${REL_TMP_PATH} 2>&1`
 then
 	echo "FAILURE: Generation of fresh spec failed:"
 	echo "$output"

   exit 1

 fi
 
 echo "Diffing current spec against freshly generated spec..."
 ret=0
 diff -Naupr -I 'Auto generated by' "${SPECROOT}" "${TMP_SPECROOT}" || ret=$?
 rm -rf "${TMP_SPECROOT}"
 if [[ $ret -eq 0 ]]
 then
   echo "SUCCESS: Swagger spec up to date."
 else
   echo "FAILURE: Swagger spec is out of date. Please run hack/update-generated-swagger-spec.sh"
   exit 1
 fi