// Copyright 2023 Harness, 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 pubsub

import "context"

type Publisher interface {
	// Publish topic to message broker with payload.
	Publish(ctx context.Context, topic string, payload []byte,
		options ...PublishOption) error
}

type PubSub interface {
	Publisher
	// Subscribe consumer to process the topic with payload, this should be
	// blocking operation.
	Subscribe(ctx context.Context, topic string,
		handler func(payload []byte) error, options ...SubscribeOption) Consumer
}

type Consumer interface {
	Subscribe(ctx context.Context, topics ...string) error
	Unsubscribe(ctx context.Context, topics ...string) error
	Close() error
}