#!/bin/bash

# Copyright 2021 The Kubeflow Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set -o errexit
set -o nounset
set -o pipefail

echo "Generate open-api for the APIs"

if [[ -z "${GOPATH:-}" ]]; then
  export GOPATH=$(go env GOPATH)
fi

# Grab code-generator version from go.sum
CODEGEN_VERSION=$(cd ../../.. && grep 'k8s.io/code-generator' go.sum | awk '{print $2}' | sed 's/\/go.mod//g' | head -1)
CODEGEN_PKG=$(echo $(go env GOPATH)"/pkg/mod/k8s.io/code-generator@${CODEGEN_VERSION}")

if [[ ! -d ${CODEGEN_PKG} ]]; then
  echo "${CODEGEN_PKG} is missing. Please run 'go mod download'."
  exit 0
fi

echo ">> Using ${CODEGEN_PKG} for the code generator"

# Ensure we can execute.
chmod +x ${CODEGEN_PKG}/generate-groups.sh

PROJECT_ROOT=${GOPATH}/src/github.com/kubeflow/katib
VERSION_LIST=(v1beta1)
SWAGGER_VERSION="0.1"

for VERSION in ${VERSION_LIST[@]}; do
  SWAGGER_CODEGEN_FILE=${PROJECT_ROOT}/pkg/apis/${VERSION}/swagger.json

  echo "Generating OpenAPI specification for ${VERSION} ..."
  go run ${CODEGEN_PKG}/cmd/openapi-gen/main.go \
    --go-header-file ${PROJECT_ROOT}/hack/boilerplate/boilerplate.go.txt \
    --input-dirs github.com/kubeflow/katib/pkg/apis/controller/common/${VERSION},github.com/kubeflow/katib/pkg/apis/controller/experiments/${VERSION},github.com/kubeflow/katib/pkg/apis/controller/suggestions/${VERSION},github.com/kubeflow/katib/pkg/apis/controller/trials/${VERSION} \
    --output-package github.com/kubeflow/katib/pkg/apis/${VERSION} \
    $@

  echo "Generating swagger file for ${VERSION} ..."
  go run ${PROJECT_ROOT}/hack/swagger/main.go ${VERSION}-${SWAGGER_VERSION} ${VERSION} >${SWAGGER_CODEGEN_FILE}
done