// Copyright 2021 Google LLC. All Rights Reserved.
//
// 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.
//

package main

import (
	"flag"

	"github.com/google/gnostic/cmd/protoc-gen-jsonschema/generator"
	"google.golang.org/protobuf/compiler/protogen"
	"google.golang.org/protobuf/types/pluginpb"
)

var flags flag.FlagSet

func main() {
	conf := generator.Configuration{
		BaseURL:  flags.String("baseurl", "", "the base url to use in schema ids"),
		Version:  flags.String("version", "http://json-schema.org/draft-07/schema#", "schema version URL used in $schema. Currently supported: draft-06, draft-07"),
		Naming:   flags.String("naming", "json", `naming convention. Use "proto" for passing names directly from the proto files`),
		EnumType: flags.String("enum_type", "integer", `type for enum serialization. Use "string" for string-based serialization`),
	}

	opts := protogen.Options{
		ParamFunc: flags.Set,
	}

	opts.Run(func(plugin *protogen.Plugin) error {
		// Enable "optional" keyword in front of type (e.g. optional string labe = 1;)
		plugin.SupportedFeatures = uint64(pluginpb.CodeGeneratorResponse_FEATURE_PROTO3_OPTIONAL)

		return generator.NewJSONSchemaGenerator(plugin, conf).Run()
	})
}