// Copyright © 2023 OpenIM. 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 discovery

import (
	"time"

	"git.imall.cloud/openim/open-im-server-deploy/pkg/common/config"
	"git.imall.cloud/openim/open-im-server-deploy/pkg/common/discovery/kubernetes"
	"github.com/openimsdk/tools/discovery"
	"github.com/openimsdk/tools/discovery/etcd"
	"github.com/openimsdk/tools/discovery/standalone"
	"github.com/openimsdk/tools/errs"
	"github.com/openimsdk/tools/utils/runtimeenv"
	"google.golang.org/grpc"
)

// NewDiscoveryRegister creates a new service discovery and registry client based on the provided environment type.
func NewDiscoveryRegister(confDiscovery *config.Discovery, watchNames []string) (discovery.SvcDiscoveryRegistry, error) {
	if config.Standalone() {
		return standalone.GetSvcDiscoveryRegistry(), nil
	}
	if runtimeenv.RuntimeEnvironment() == config.KUBERNETES {
		return kubernetes.NewKubernetesConnManager(confDiscovery.Kubernetes.Namespace, watchNames,
			grpc.WithDefaultCallOptions(
				grpc.MaxCallSendMsgSize(1024*1024*20),
			),
		)
	}

	switch confDiscovery.Enable {
	case config.ETCD:
		return etcd.NewSvcDiscoveryRegistry(
			confDiscovery.Etcd.RootDirectory,
			confDiscovery.Etcd.Address,
			watchNames,
			etcd.WithDialTimeout(10*time.Second),
			etcd.WithMaxCallSendMsgSize(20*1024*1024),
			etcd.WithUsernameAndPassword(confDiscovery.Etcd.Username, confDiscovery.Etcd.Password))
	default:
		return nil, errs.New("unsupported discovery type", "type", confDiscovery.Enable).Wrap()
	}
}