// Copyright 2024 Redpanda Data, 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 (
	"bytes"

	"github.com/redpanda-data/redpanda/src/transform-sdk/go/transform"
)

func main() {
	transform.OnRecordWritten(makeUppercase)
}

func makeUppercase(e transform.WriteEvent, w transform.RecordWriter) error {
	return w.Write(transform.Record{
		Key:   e.Record().Key,
		Value: bytes.ToUpper(e.Record().Value),
	})
}