/*
 * 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 config

import (
	"sync"
)

import (
	"github.com/dubbogo/gost/log/logger"
)

import (
	"dubbo.apache.org/dubbo-go/v3/client"
	"dubbo.apache.org/dubbo-go/v3/common"
)

var (
	conServicesLock              = sync.Mutex{}                               // used to guard conServices map.
	conServices                  = map[string]common.RPCService{}             // service name -> service
	proServicesLock              = sync.Mutex{}                               // used to guard proServices map
	proServices                  = map[string]common.RPCService{}             // service name -> service
	interfaceNameConServicesLock = sync.Mutex{}                               // used to guard interfaceNameConServices map
	interfaceNameConServices     = map[string]common.RPCService{}             // interfaceName -> service
	clientInfoServicesLock       = sync.Mutex{}                               // used to guard clientInfoServices map
	clientInfoServices           = map[*client.ClientInfo]common.RPCService{} // ClientInfo -> service
)

// SetConsumerService is called by init() of implement of RPCService
func SetConsumerService(service common.RPCService) {
	ref := common.GetReference(service)
	conServicesLock.Lock()
	defer func() {
		conServicesLock.Unlock()
		logger.Debugf("A consumer service %s was registered successfully.", ref)
	}()
	conServices[ref] = service
}

// SetProviderService is called by init() of implement of RPCService
func SetProviderService(service common.RPCService) {
	ref := common.GetReference(service)
	proServicesLock.Lock()
	defer func() {
		proServicesLock.Unlock()
		logger.Debugf("A provider service %s was registered successfully.", ref)
	}()
	proServices[ref] = service
}

// GetConsumerService gets ConsumerService by @name
func GetConsumerService(name string) common.RPCService {
	conServicesLock.Lock()
	defer conServicesLock.Unlock()
	return conServices[name]
}

// GetProviderService gets ProviderService by @name
func GetProviderService(name string) common.RPCService {
	proServicesLock.Lock()
	defer proServicesLock.Unlock()
	return proServices[name]
}

// GetProviderServiceMap gets ProviderServiceMap
func GetProviderServiceMap() map[string]common.RPCService {
	return proServices
}

// GetConsumerServiceMap gets ProviderServiceMap
func GetConsumerServiceMap() map[string]common.RPCService {
	return conServices
}

// SetConsumerServiceByInterfaceName is used by pb serialization
func SetConsumerServiceByInterfaceName(interfaceName string, srv common.RPCService) {
	interfaceNameConServicesLock.Lock()
	defer interfaceNameConServicesLock.Unlock()
	interfaceNameConServices[interfaceName] = srv
}

// GetConsumerServiceByInterfaceName is used by pb serialization
func GetConsumerServiceByInterfaceName(interfaceName string) common.RPCService {
	interfaceNameConServicesLock.Lock()
	defer interfaceNameConServicesLock.Unlock()
	return interfaceNameConServices[interfaceName]
}

// GetCallback gets CallbackResponse by @name
func GetCallback(name string) func(response common.CallbackResponse) {
	service := GetConsumerService(name)
	if sv, ok := service.(common.AsyncCallbackService); ok {
		return sv.CallBack
	}
	return nil
}

// SetClientInfoService set new info and service into clientInfosServices if new info and service are not nil
func SetClientInfoService(info *client.ClientInfo, srv common.RPCService) {
	if info == nil || info.ClientInjectFunc == nil || srv == nil {
		return
	}
	clientInfoServicesLock.Lock()
	defer clientInfoServicesLock.Unlock()
	clientInfoServices[info] = srv
}

// GetClientInfoServicesMap returns clientInfoServices
func GetClientInfoServicesMap() map[*client.ClientInfo]common.RPCService {
	return clientInfoServices
}