// Copyright 2020-2025 Buf Technologies, Inc.
//
// 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 (
	"context"

	"buf.build/go/bufplugin/check"
	"buf.build/go/bufplugin/check/checkutil"
	"google.golang.org/protobuf/reflect/protoreflect"
)

var (
	rpcSuffixRuleSpec = &check.RuleSpec{
		ID:      "RPC_SUFFIX",
		Default: true,
		Purpose: "Checks that RPC names don't end with an illegal suffix.",
		Type:    check.RuleTypeLint,
		Handler: checkutil.NewMethodRuleHandler(checkRPCSuffix, checkutil.WithoutImports()),
	}
)

func main() {
	check.Main(&check.Spec{
		Rules: []*check.RuleSpec{
			rpcSuffixRuleSpec,
		},
	})
}

func checkRPCSuffix(
	_ context.Context,
	responseWriter check.ResponseWriter,
	_ check.Request,
	methodDescriptor protoreflect.MethodDescriptor,
) error {
	responseWriter.AddAnnotation(
		check.WithMessage("hello world"),
	)
	return nil
}
