/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 sync

import (
	"context"
)

import (
	core_model "github.com/apache/dubbo-kubernetes/pkg/core/resources/model"
	core_xds "github.com/apache/dubbo-kubernetes/pkg/core/xds"
	util_watchdog "github.com/apache/dubbo-kubernetes/pkg/util/watchdog"
	xds_context "github.com/apache/dubbo-kubernetes/pkg/xds/context"
)

type DataplaneMetadataTracker interface {
	Metadata(dpKey core_model.ResourceKey) *core_xds.DataplaneMetadata
}

type ConnectionInfoTracker interface {
	ConnectionInfo(dpKey core_model.ResourceKey) *xds_context.ConnectionInfo
}

// SnapshotReconciler reconciles Envoy XDS configuration (Snapshot) by executing all generators (pkg/xds/generator)
type SnapshotReconciler interface {
	Reconcile(ctx context.Context, ctx2 xds_context.Context, proxy *core_xds.Proxy) (bool, error)
	Clear(proxyId *core_xds.ProxyId) error
}

// DataplaneWatchdogFactory returns a Watchdog that creates a new XdsContext and Proxy and executes SnapshotReconciler if there is any change
type DataplaneWatchdogFactory interface {
	New(dpKey core_model.ResourceKey) util_watchdog.Watchdog
}