/*
 * Copyright 2016 Game Server Services, Inc. or its affiliates. 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.
 * A copy of the License is located at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * or in the "license" file accompanying this file. This file 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.
 */
#if UNITY_2017_1_OR_NEWER
using UnityEngine.Events;
using UnityEngine.Networking;
    #if GS2_ENABLE_UNITASK
using Cysharp.Threading.Tasks;
    #endif
#else
using System.Web;
using System.Net.Http;
using System.Threading.Tasks;
#endif

using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Linq;
using Gs2.Core;
using Gs2.Core.Model;
using Gs2.Core.Net;
using Gs2.Gs2Lock.Request;
using Gs2.Gs2Lock.Result;
using Gs2.Util.LitJson;

namespace Gs2.Gs2Lock
{
	public class Gs2LockRestClient : AbstractGs2Client
	{
#if UNITY_2017_1_OR_NEWER
		private readonly CertificateHandler _certificateHandler;
#endif

		public static string Endpoint = "lock";

        protected Gs2RestSession Gs2RestSession => (Gs2RestSession) Gs2Session;

		public Gs2LockRestClient(Gs2RestSession Gs2RestSession) : base(Gs2RestSession)
		{

		}

#if UNITY_2017_1_OR_NEWER
		public Gs2LockRestClient(Gs2RestSession gs2RestSession, CertificateHandler certificateHandler) : base(gs2RestSession)
		{
			_certificateHandler = certificateHandler;
		}
#endif


        public class DescribeNamespacesTask : Gs2RestSessionTask<DescribeNamespacesRequest, DescribeNamespacesResult>
        {
            public DescribeNamespacesTask(IGs2Session session, RestSessionRequestFactory factory, DescribeNamespacesRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(DescribeNamespacesRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/";

                var sessionRequest = Factory.Get(url);
                if (request.ContextStack != null)
                {
                    sessionRequest.AddQueryString("contextStack", request.ContextStack);
                }
                if (request.PageToken != null) {
                    sessionRequest.AddQueryString("pageToken", $"{request.PageToken}");
                }
                if (request.Limit != null) {
                    sessionRequest.AddQueryString("limit", $"{request.Limit}");
                }
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator DescribeNamespaces(
                Request.DescribeNamespacesRequest request,
                UnityAction<AsyncResult<Result.DescribeNamespacesResult>> callback
        )
		{
			var task = new DescribeNamespacesTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.DescribeNamespacesResult>(task.Result, task.Error));
        }

		public IFuture<Result.DescribeNamespacesResult> DescribeNamespacesFuture(
                Request.DescribeNamespacesRequest request
        )
		{
			return new DescribeNamespacesTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.DescribeNamespacesResult> DescribeNamespacesAsync(
                Request.DescribeNamespacesRequest request
        )
		{
            AsyncResult<Result.DescribeNamespacesResult> result = null;
			await DescribeNamespaces(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public DescribeNamespacesTask DescribeNamespacesAsync(
                Request.DescribeNamespacesRequest request
        )
		{
			return new DescribeNamespacesTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.DescribeNamespacesResult> DescribeNamespacesAsync(
                Request.DescribeNamespacesRequest request
        )
		{
			var task = new DescribeNamespacesTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif


        public class CreateNamespaceTask : Gs2RestSessionTask<CreateNamespaceRequest, CreateNamespaceResult>
        {
            public CreateNamespaceTask(IGs2Session session, RestSessionRequestFactory factory, CreateNamespaceRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(CreateNamespaceRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/";

                var sessionRequest = Factory.Post(url);

                var stringBuilder = new StringBuilder();
                var jsonWriter = new JsonWriter(stringBuilder);
                jsonWriter.WriteObjectStart();
                if (request.Name != null)
                {
                    jsonWriter.WritePropertyName("name");
                    jsonWriter.Write(request.Name);
                }
                if (request.Description != null)
                {
                    jsonWriter.WritePropertyName("description");
                    jsonWriter.Write(request.Description);
                }
                if (request.LogSetting != null)
                {
                    jsonWriter.WritePropertyName("logSetting");
                    request.LogSetting.WriteJson(jsonWriter);
                }
                if (request.ContextStack != null)
                {
                    jsonWriter.WritePropertyName("contextStack");
                    jsonWriter.Write(request.ContextStack.ToString());
                }
                jsonWriter.WriteObjectEnd();

                var body = stringBuilder.ToString();
                if (!string.IsNullOrEmpty(body))
                {
                    sessionRequest.Body = body;
                }
                sessionRequest.AddHeader("Content-Type", "application/json");
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator CreateNamespace(
                Request.CreateNamespaceRequest request,
                UnityAction<AsyncResult<Result.CreateNamespaceResult>> callback
        )
		{
			var task = new CreateNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.CreateNamespaceResult>(task.Result, task.Error));
        }

		public IFuture<Result.CreateNamespaceResult> CreateNamespaceFuture(
                Request.CreateNamespaceRequest request
        )
		{
			return new CreateNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.CreateNamespaceResult> CreateNamespaceAsync(
                Request.CreateNamespaceRequest request
        )
		{
            AsyncResult<Result.CreateNamespaceResult> result = null;
			await CreateNamespace(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public CreateNamespaceTask CreateNamespaceAsync(
                Request.CreateNamespaceRequest request
        )
		{
			return new CreateNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.CreateNamespaceResult> CreateNamespaceAsync(
                Request.CreateNamespaceRequest request
        )
		{
			var task = new CreateNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif


        public class GetNamespaceStatusTask : Gs2RestSessionTask<GetNamespaceStatusRequest, GetNamespaceStatusResult>
        {
            public GetNamespaceStatusTask(IGs2Session session, RestSessionRequestFactory factory, GetNamespaceStatusRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(GetNamespaceStatusRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/{namespaceName}/status";

                url = url.Replace("{namespaceName}", !string.IsNullOrEmpty(request.NamespaceName) ? request.NamespaceName.ToString() : "null");

                var sessionRequest = Factory.Get(url);
                if (request.ContextStack != null)
                {
                    sessionRequest.AddQueryString("contextStack", request.ContextStack);
                }
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator GetNamespaceStatus(
                Request.GetNamespaceStatusRequest request,
                UnityAction<AsyncResult<Result.GetNamespaceStatusResult>> callback
        )
		{
			var task = new GetNamespaceStatusTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.GetNamespaceStatusResult>(task.Result, task.Error));
        }

		public IFuture<Result.GetNamespaceStatusResult> GetNamespaceStatusFuture(
                Request.GetNamespaceStatusRequest request
        )
		{
			return new GetNamespaceStatusTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.GetNamespaceStatusResult> GetNamespaceStatusAsync(
                Request.GetNamespaceStatusRequest request
        )
		{
            AsyncResult<Result.GetNamespaceStatusResult> result = null;
			await GetNamespaceStatus(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public GetNamespaceStatusTask GetNamespaceStatusAsync(
                Request.GetNamespaceStatusRequest request
        )
		{
			return new GetNamespaceStatusTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.GetNamespaceStatusResult> GetNamespaceStatusAsync(
                Request.GetNamespaceStatusRequest request
        )
		{
			var task = new GetNamespaceStatusTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif


        public class GetNamespaceTask : Gs2RestSessionTask<GetNamespaceRequest, GetNamespaceResult>
        {
            public GetNamespaceTask(IGs2Session session, RestSessionRequestFactory factory, GetNamespaceRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(GetNamespaceRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/{namespaceName}";

                url = url.Replace("{namespaceName}", !string.IsNullOrEmpty(request.NamespaceName) ? request.NamespaceName.ToString() : "null");

                var sessionRequest = Factory.Get(url);
                if (request.ContextStack != null)
                {
                    sessionRequest.AddQueryString("contextStack", request.ContextStack);
                }
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator GetNamespace(
                Request.GetNamespaceRequest request,
                UnityAction<AsyncResult<Result.GetNamespaceResult>> callback
        )
		{
			var task = new GetNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.GetNamespaceResult>(task.Result, task.Error));
        }

		public IFuture<Result.GetNamespaceResult> GetNamespaceFuture(
                Request.GetNamespaceRequest request
        )
		{
			return new GetNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.GetNamespaceResult> GetNamespaceAsync(
                Request.GetNamespaceRequest request
        )
		{
            AsyncResult<Result.GetNamespaceResult> result = null;
			await GetNamespace(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public GetNamespaceTask GetNamespaceAsync(
                Request.GetNamespaceRequest request
        )
		{
			return new GetNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.GetNamespaceResult> GetNamespaceAsync(
                Request.GetNamespaceRequest request
        )
		{
			var task = new GetNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif


        public class UpdateNamespaceTask : Gs2RestSessionTask<UpdateNamespaceRequest, UpdateNamespaceResult>
        {
            public UpdateNamespaceTask(IGs2Session session, RestSessionRequestFactory factory, UpdateNamespaceRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(UpdateNamespaceRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/{namespaceName}";

                url = url.Replace("{namespaceName}", !string.IsNullOrEmpty(request.NamespaceName) ? request.NamespaceName.ToString() : "null");

                var sessionRequest = Factory.Put(url);

                var stringBuilder = new StringBuilder();
                var jsonWriter = new JsonWriter(stringBuilder);
                jsonWriter.WriteObjectStart();
                if (request.Description != null)
                {
                    jsonWriter.WritePropertyName("description");
                    jsonWriter.Write(request.Description);
                }
                if (request.LogSetting != null)
                {
                    jsonWriter.WritePropertyName("logSetting");
                    request.LogSetting.WriteJson(jsonWriter);
                }
                if (request.ContextStack != null)
                {
                    jsonWriter.WritePropertyName("contextStack");
                    jsonWriter.Write(request.ContextStack.ToString());
                }
                jsonWriter.WriteObjectEnd();

                var body = stringBuilder.ToString();
                if (!string.IsNullOrEmpty(body))
                {
                    sessionRequest.Body = body;
                }
                sessionRequest.AddHeader("Content-Type", "application/json");
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator UpdateNamespace(
                Request.UpdateNamespaceRequest request,
                UnityAction<AsyncResult<Result.UpdateNamespaceResult>> callback
        )
		{
			var task = new UpdateNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.UpdateNamespaceResult>(task.Result, task.Error));
        }

		public IFuture<Result.UpdateNamespaceResult> UpdateNamespaceFuture(
                Request.UpdateNamespaceRequest request
        )
		{
			return new UpdateNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.UpdateNamespaceResult> UpdateNamespaceAsync(
                Request.UpdateNamespaceRequest request
        )
		{
            AsyncResult<Result.UpdateNamespaceResult> result = null;
			await UpdateNamespace(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public UpdateNamespaceTask UpdateNamespaceAsync(
                Request.UpdateNamespaceRequest request
        )
		{
			return new UpdateNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.UpdateNamespaceResult> UpdateNamespaceAsync(
                Request.UpdateNamespaceRequest request
        )
		{
			var task = new UpdateNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif


        public class DeleteNamespaceTask : Gs2RestSessionTask<DeleteNamespaceRequest, DeleteNamespaceResult>
        {
            public DeleteNamespaceTask(IGs2Session session, RestSessionRequestFactory factory, DeleteNamespaceRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(DeleteNamespaceRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/{namespaceName}";

                url = url.Replace("{namespaceName}", !string.IsNullOrEmpty(request.NamespaceName) ? request.NamespaceName.ToString() : "null");

                var sessionRequest = Factory.Delete(url);
                if (request.ContextStack != null)
                {
                    sessionRequest.AddQueryString("contextStack", request.ContextStack);
                }
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator DeleteNamespace(
                Request.DeleteNamespaceRequest request,
                UnityAction<AsyncResult<Result.DeleteNamespaceResult>> callback
        )
		{
			var task = new DeleteNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.DeleteNamespaceResult>(task.Result, task.Error));
        }

		public IFuture<Result.DeleteNamespaceResult> DeleteNamespaceFuture(
                Request.DeleteNamespaceRequest request
        )
		{
			return new DeleteNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.DeleteNamespaceResult> DeleteNamespaceAsync(
                Request.DeleteNamespaceRequest request
        )
		{
            AsyncResult<Result.DeleteNamespaceResult> result = null;
			await DeleteNamespace(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public DeleteNamespaceTask DeleteNamespaceAsync(
                Request.DeleteNamespaceRequest request
        )
		{
			return new DeleteNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.DeleteNamespaceResult> DeleteNamespaceAsync(
                Request.DeleteNamespaceRequest request
        )
		{
			var task = new DeleteNamespaceTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif


        public class LockTask : Gs2RestSessionTask<LockRequest, LockResult>
        {
            public LockTask(IGs2Session session, RestSessionRequestFactory factory, LockRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(LockRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/{namespaceName}/user/me/mutex/{propertyId}/lock";

                url = url.Replace("{namespaceName}", !string.IsNullOrEmpty(request.NamespaceName) ? request.NamespaceName.ToString() : "null");
                url = url.Replace("{propertyId}", !string.IsNullOrEmpty(request.PropertyId) ? request.PropertyId.ToString() : "null");

                var sessionRequest = Factory.Post(url);

                var stringBuilder = new StringBuilder();
                var jsonWriter = new JsonWriter(stringBuilder);
                jsonWriter.WriteObjectStart();
                if (request.TransactionId != null)
                {
                    jsonWriter.WritePropertyName("transactionId");
                    jsonWriter.Write(request.TransactionId);
                }
                if (request.Ttl != null)
                {
                    jsonWriter.WritePropertyName("ttl");
                    jsonWriter.Write(request.Ttl.ToString());
                }
                if (request.ContextStack != null)
                {
                    jsonWriter.WritePropertyName("contextStack");
                    jsonWriter.Write(request.ContextStack.ToString());
                }
                jsonWriter.WriteObjectEnd();

                var body = stringBuilder.ToString();
                if (!string.IsNullOrEmpty(body))
                {
                    sessionRequest.Body = body;
                }
                sessionRequest.AddHeader("Content-Type", "application/json");
                if (request.AccessToken != null)
                {
                    sessionRequest.AddHeader("X-GS2-ACCESS-TOKEN", request.AccessToken);
                }
                if (request.DuplicationAvoider != null)
                {
                    sessionRequest.AddHeader("X-GS2-DUPLICATION-AVOIDER", request.DuplicationAvoider);
                }
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator Lock(
                Request.LockRequest request,
                UnityAction<AsyncResult<Result.LockResult>> callback
        )
		{
			var task = new LockTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.LockResult>(task.Result, task.Error));
        }

		public IFuture<Result.LockResult> LockFuture(
                Request.LockRequest request
        )
		{
			return new LockTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.LockResult> LockAsync(
                Request.LockRequest request
        )
		{
            AsyncResult<Result.LockResult> result = null;
			await Lock(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public LockTask LockAsync(
                Request.LockRequest request
        )
		{
			return new LockTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.LockResult> LockAsync(
                Request.LockRequest request
        )
		{
			var task = new LockTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif


        public class LockByUserIdTask : Gs2RestSessionTask<LockByUserIdRequest, LockByUserIdResult>
        {
            public LockByUserIdTask(IGs2Session session, RestSessionRequestFactory factory, LockByUserIdRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(LockByUserIdRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/{namespaceName}/user/{userId}/mutex/{propertyId}/lock";

                url = url.Replace("{namespaceName}", !string.IsNullOrEmpty(request.NamespaceName) ? request.NamespaceName.ToString() : "null");
                url = url.Replace("{propertyId}", !string.IsNullOrEmpty(request.PropertyId) ? request.PropertyId.ToString() : "null");
                url = url.Replace("{userId}", !string.IsNullOrEmpty(request.UserId) ? request.UserId.ToString() : "null");

                var sessionRequest = Factory.Post(url);

                var stringBuilder = new StringBuilder();
                var jsonWriter = new JsonWriter(stringBuilder);
                jsonWriter.WriteObjectStart();
                if (request.TransactionId != null)
                {
                    jsonWriter.WritePropertyName("transactionId");
                    jsonWriter.Write(request.TransactionId);
                }
                if (request.Ttl != null)
                {
                    jsonWriter.WritePropertyName("ttl");
                    jsonWriter.Write(request.Ttl.ToString());
                }
                if (request.ContextStack != null)
                {
                    jsonWriter.WritePropertyName("contextStack");
                    jsonWriter.Write(request.ContextStack.ToString());
                }
                jsonWriter.WriteObjectEnd();

                var body = stringBuilder.ToString();
                if (!string.IsNullOrEmpty(body))
                {
                    sessionRequest.Body = body;
                }
                sessionRequest.AddHeader("Content-Type", "application/json");
                if (request.DuplicationAvoider != null)
                {
                    sessionRequest.AddHeader("X-GS2-DUPLICATION-AVOIDER", request.DuplicationAvoider);
                }
                if (request.TimeOffsetToken != null)
                {
                    sessionRequest.AddHeader("X-GS2-TIME-OFFSET-TOKEN", request.TimeOffsetToken);
                }
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator LockByUserId(
                Request.LockByUserIdRequest request,
                UnityAction<AsyncResult<Result.LockByUserIdResult>> callback
        )
		{
			var task = new LockByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.LockByUserIdResult>(task.Result, task.Error));
        }

		public IFuture<Result.LockByUserIdResult> LockByUserIdFuture(
                Request.LockByUserIdRequest request
        )
		{
			return new LockByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.LockByUserIdResult> LockByUserIdAsync(
                Request.LockByUserIdRequest request
        )
		{
            AsyncResult<Result.LockByUserIdResult> result = null;
			await LockByUserId(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public LockByUserIdTask LockByUserIdAsync(
                Request.LockByUserIdRequest request
        )
		{
			return new LockByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.LockByUserIdResult> LockByUserIdAsync(
                Request.LockByUserIdRequest request
        )
		{
			var task = new LockByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif


        public class UnlockTask : Gs2RestSessionTask<UnlockRequest, UnlockResult>
        {
            public UnlockTask(IGs2Session session, RestSessionRequestFactory factory, UnlockRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(UnlockRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/{namespaceName}/user/me/mutex/{propertyId}/unlock";

                url = url.Replace("{namespaceName}", !string.IsNullOrEmpty(request.NamespaceName) ? request.NamespaceName.ToString() : "null");
                url = url.Replace("{propertyId}", !string.IsNullOrEmpty(request.PropertyId) ? request.PropertyId.ToString() : "null");

                var sessionRequest = Factory.Post(url);

                var stringBuilder = new StringBuilder();
                var jsonWriter = new JsonWriter(stringBuilder);
                jsonWriter.WriteObjectStart();
                if (request.TransactionId != null)
                {
                    jsonWriter.WritePropertyName("transactionId");
                    jsonWriter.Write(request.TransactionId);
                }
                if (request.ContextStack != null)
                {
                    jsonWriter.WritePropertyName("contextStack");
                    jsonWriter.Write(request.ContextStack.ToString());
                }
                jsonWriter.WriteObjectEnd();

                var body = stringBuilder.ToString();
                if (!string.IsNullOrEmpty(body))
                {
                    sessionRequest.Body = body;
                }
                sessionRequest.AddHeader("Content-Type", "application/json");
                if (request.AccessToken != null)
                {
                    sessionRequest.AddHeader("X-GS2-ACCESS-TOKEN", request.AccessToken);
                }
                if (request.DuplicationAvoider != null)
                {
                    sessionRequest.AddHeader("X-GS2-DUPLICATION-AVOIDER", request.DuplicationAvoider);
                }
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator Unlock(
                Request.UnlockRequest request,
                UnityAction<AsyncResult<Result.UnlockResult>> callback
        )
		{
			var task = new UnlockTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.UnlockResult>(task.Result, task.Error));
        }

		public IFuture<Result.UnlockResult> UnlockFuture(
                Request.UnlockRequest request
        )
		{
			return new UnlockTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.UnlockResult> UnlockAsync(
                Request.UnlockRequest request
        )
		{
            AsyncResult<Result.UnlockResult> result = null;
			await Unlock(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public UnlockTask UnlockAsync(
                Request.UnlockRequest request
        )
		{
			return new UnlockTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.UnlockResult> UnlockAsync(
                Request.UnlockRequest request
        )
		{
			var task = new UnlockTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif


        public class UnlockByUserIdTask : Gs2RestSessionTask<UnlockByUserIdRequest, UnlockByUserIdResult>
        {
            public UnlockByUserIdTask(IGs2Session session, RestSessionRequestFactory factory, UnlockByUserIdRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(UnlockByUserIdRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/{namespaceName}/user/{userId}/mutex/{propertyId}/unlock";

                url = url.Replace("{namespaceName}", !string.IsNullOrEmpty(request.NamespaceName) ? request.NamespaceName.ToString() : "null");
                url = url.Replace("{propertyId}", !string.IsNullOrEmpty(request.PropertyId) ? request.PropertyId.ToString() : "null");
                url = url.Replace("{userId}", !string.IsNullOrEmpty(request.UserId) ? request.UserId.ToString() : "null");

                var sessionRequest = Factory.Post(url);

                var stringBuilder = new StringBuilder();
                var jsonWriter = new JsonWriter(stringBuilder);
                jsonWriter.WriteObjectStart();
                if (request.TransactionId != null)
                {
                    jsonWriter.WritePropertyName("transactionId");
                    jsonWriter.Write(request.TransactionId);
                }
                if (request.ContextStack != null)
                {
                    jsonWriter.WritePropertyName("contextStack");
                    jsonWriter.Write(request.ContextStack.ToString());
                }
                jsonWriter.WriteObjectEnd();

                var body = stringBuilder.ToString();
                if (!string.IsNullOrEmpty(body))
                {
                    sessionRequest.Body = body;
                }
                sessionRequest.AddHeader("Content-Type", "application/json");
                if (request.DuplicationAvoider != null)
                {
                    sessionRequest.AddHeader("X-GS2-DUPLICATION-AVOIDER", request.DuplicationAvoider);
                }
                if (request.TimeOffsetToken != null)
                {
                    sessionRequest.AddHeader("X-GS2-TIME-OFFSET-TOKEN", request.TimeOffsetToken);
                }
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator UnlockByUserId(
                Request.UnlockByUserIdRequest request,
                UnityAction<AsyncResult<Result.UnlockByUserIdResult>> callback
        )
		{
			var task = new UnlockByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.UnlockByUserIdResult>(task.Result, task.Error));
        }

		public IFuture<Result.UnlockByUserIdResult> UnlockByUserIdFuture(
                Request.UnlockByUserIdRequest request
        )
		{
			return new UnlockByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.UnlockByUserIdResult> UnlockByUserIdAsync(
                Request.UnlockByUserIdRequest request
        )
		{
            AsyncResult<Result.UnlockByUserIdResult> result = null;
			await UnlockByUserId(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public UnlockByUserIdTask UnlockByUserIdAsync(
                Request.UnlockByUserIdRequest request
        )
		{
			return new UnlockByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.UnlockByUserIdResult> UnlockByUserIdAsync(
                Request.UnlockByUserIdRequest request
        )
		{
			var task = new UnlockByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif


        public class GetMutexTask : Gs2RestSessionTask<GetMutexRequest, GetMutexResult>
        {
            public GetMutexTask(IGs2Session session, RestSessionRequestFactory factory, GetMutexRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(GetMutexRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/{namespaceName}/user/me/mutex/{propertyId}";

                url = url.Replace("{namespaceName}", !string.IsNullOrEmpty(request.NamespaceName) ? request.NamespaceName.ToString() : "null");
                url = url.Replace("{propertyId}", !string.IsNullOrEmpty(request.PropertyId) ? request.PropertyId.ToString() : "null");

                var sessionRequest = Factory.Get(url);
                if (request.ContextStack != null)
                {
                    sessionRequest.AddQueryString("contextStack", request.ContextStack);
                }
                if (request.AccessToken != null)
                {
                    sessionRequest.AddHeader("X-GS2-ACCESS-TOKEN", request.AccessToken);
                }
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator GetMutex(
                Request.GetMutexRequest request,
                UnityAction<AsyncResult<Result.GetMutexResult>> callback
        )
		{
			var task = new GetMutexTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.GetMutexResult>(task.Result, task.Error));
        }

		public IFuture<Result.GetMutexResult> GetMutexFuture(
                Request.GetMutexRequest request
        )
		{
			return new GetMutexTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.GetMutexResult> GetMutexAsync(
                Request.GetMutexRequest request
        )
		{
            AsyncResult<Result.GetMutexResult> result = null;
			await GetMutex(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public GetMutexTask GetMutexAsync(
                Request.GetMutexRequest request
        )
		{
			return new GetMutexTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.GetMutexResult> GetMutexAsync(
                Request.GetMutexRequest request
        )
		{
			var task = new GetMutexTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif


        public class GetMutexByUserIdTask : Gs2RestSessionTask<GetMutexByUserIdRequest, GetMutexByUserIdResult>
        {
            public GetMutexByUserIdTask(IGs2Session session, RestSessionRequestFactory factory, GetMutexByUserIdRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(GetMutexByUserIdRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/{namespaceName}/user/{userId}/mutex/{propertyId}";

                url = url.Replace("{namespaceName}", !string.IsNullOrEmpty(request.NamespaceName) ? request.NamespaceName.ToString() : "null");
                url = url.Replace("{userId}", !string.IsNullOrEmpty(request.UserId) ? request.UserId.ToString() : "null");
                url = url.Replace("{propertyId}", !string.IsNullOrEmpty(request.PropertyId) ? request.PropertyId.ToString() : "null");

                var sessionRequest = Factory.Get(url);
                if (request.ContextStack != null)
                {
                    sessionRequest.AddQueryString("contextStack", request.ContextStack);
                }
                if (request.TimeOffsetToken != null)
                {
                    sessionRequest.AddHeader("X-GS2-TIME-OFFSET-TOKEN", request.TimeOffsetToken);
                }
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator GetMutexByUserId(
                Request.GetMutexByUserIdRequest request,
                UnityAction<AsyncResult<Result.GetMutexByUserIdResult>> callback
        )
		{
			var task = new GetMutexByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.GetMutexByUserIdResult>(task.Result, task.Error));
        }

		public IFuture<Result.GetMutexByUserIdResult> GetMutexByUserIdFuture(
                Request.GetMutexByUserIdRequest request
        )
		{
			return new GetMutexByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.GetMutexByUserIdResult> GetMutexByUserIdAsync(
                Request.GetMutexByUserIdRequest request
        )
		{
            AsyncResult<Result.GetMutexByUserIdResult> result = null;
			await GetMutexByUserId(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public GetMutexByUserIdTask GetMutexByUserIdAsync(
                Request.GetMutexByUserIdRequest request
        )
		{
			return new GetMutexByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.GetMutexByUserIdResult> GetMutexByUserIdAsync(
                Request.GetMutexByUserIdRequest request
        )
		{
			var task = new GetMutexByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif


        public class DeleteMutexByUserIdTask : Gs2RestSessionTask<DeleteMutexByUserIdRequest, DeleteMutexByUserIdResult>
        {
            public DeleteMutexByUserIdTask(IGs2Session session, RestSessionRequestFactory factory, DeleteMutexByUserIdRequest request) : base(session, factory, request)
            {
            }

            protected override IGs2SessionRequest CreateRequest(DeleteMutexByUserIdRequest request)
            {
                var url = Gs2RestSession.EndpointHost
                    .Replace("{service}", "lock")
                    .Replace("{region}", Session.Region.DisplayName())
                    + "/{namespaceName}/user/{userId}/mutex/{propertyId}";

                url = url.Replace("{namespaceName}", !string.IsNullOrEmpty(request.NamespaceName) ? request.NamespaceName.ToString() : "null");
                url = url.Replace("{userId}", !string.IsNullOrEmpty(request.UserId) ? request.UserId.ToString() : "null");
                url = url.Replace("{propertyId}", !string.IsNullOrEmpty(request.PropertyId) ? request.PropertyId.ToString() : "null");

                var sessionRequest = Factory.Delete(url);
                if (request.ContextStack != null)
                {
                    sessionRequest.AddQueryString("contextStack", request.ContextStack);
                }
                if (request.DuplicationAvoider != null)
                {
                    sessionRequest.AddHeader("X-GS2-DUPLICATION-AVOIDER", request.DuplicationAvoider);
                }
                if (request.TimeOffsetToken != null)
                {
                    sessionRequest.AddHeader("X-GS2-TIME-OFFSET-TOKEN", request.TimeOffsetToken);
                }
                if (request.DryRun)
                {
                    sessionRequest.AddHeader("X-GS2-DRY-RUN", "true");
                }

                AddHeader(
                    Session.Credential,
                    sessionRequest
                );

                return sessionRequest;
            }
        }

#if UNITY_2017_1_OR_NEWER
		public IEnumerator DeleteMutexByUserId(
                Request.DeleteMutexByUserIdRequest request,
                UnityAction<AsyncResult<Result.DeleteMutexByUserIdResult>> callback
        )
		{
			var task = new DeleteMutexByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
            yield return task;
            callback.Invoke(new AsyncResult<Result.DeleteMutexByUserIdResult>(task.Result, task.Error));
        }

		public IFuture<Result.DeleteMutexByUserIdResult> DeleteMutexByUserIdFuture(
                Request.DeleteMutexByUserIdRequest request
        )
		{
			return new DeleteMutexByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
                request
			);
        }

    #if GS2_ENABLE_UNITASK
		public async UniTask<Result.DeleteMutexByUserIdResult> DeleteMutexByUserIdAsync(
                Request.DeleteMutexByUserIdRequest request
        )
		{
            AsyncResult<Result.DeleteMutexByUserIdResult> result = null;
			await DeleteMutexByUserId(
                request,
                r => result = r
            );
            if (result.Error != null)
            {
                throw result.Error;
            }
            return result.Result;
        }
    #else
		public DeleteMutexByUserIdTask DeleteMutexByUserIdAsync(
                Request.DeleteMutexByUserIdRequest request
        )
		{
			return new DeleteMutexByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new UnityRestSessionRequest(_certificateHandler)),
			    request
            );
        }
    #endif
#else
		public async Task<Result.DeleteMutexByUserIdResult> DeleteMutexByUserIdAsync(
                Request.DeleteMutexByUserIdRequest request
        )
		{
			var task = new DeleteMutexByUserIdTask(
                Gs2RestSession,
                new RestSessionRequestFactory(() => new DotNetRestSessionRequest()),
			    request
            );
			return await task.Invoke();
        }
#endif
	}
}