using Google.Protobuf;
using Grpc.Core;
using Grpc.Net.Client;
using HotelPms.Data;
using HotelPms.Data.Client;
using HotelPms.Data.Common;
using HotelPms.Data.Common.Interface.Access;
using HotelPms.Data.Common.Pagination;
using HotelPms.Data.Master;
using HotelPms.Share.Util;
using System.Data;
using System.Text.Json;

namespace HotelPms.DataAccessGrpc.Client
{
    public class DemoAccess : IDisposable, IDemo
    {
        /// <summary>
        /// チャネル
        /// </summary>
        public GrpcChannel? Channel { get; private set; }
        public DemoCore.DemoCoreClient? Client { get; private set; }

        private static DemoAccess? m_Default;

        public static DemoAccess Instance
        {
            get
            {
                if (m_Default == null) { m_Default = new DemoAccess(GrpcFactory.Instance.Channel); }
                return m_Default;
            }
        }

        public DemoAccess(GrpcChannel channel)
        {
            Channel = channel;
            Client = new DemoCore.DemoCoreClient(Channel);
        }

        public void Dispose()
        {
            
        }

        /// <summary>
        /// 排他チェックのため、最新更新日取得する
        /// </summary>
        /// <param name="pID"></param>
        /// <returns></returns>
        public int GetUpdateID(int pID)
        {
            return CConvert.ToInt(GrpcClient.ExecuteScalarSync(Channel, $"SELECT UpdateID FROM M_Demo WHERE ID = {pID}"));
        }

        public bool Exists(int pID)
        {
            return GrpcClient.ExecuteScalarSync(Channel, $"IF EXISTS(SELECT 1 FROM M_Demo WHERE ID = {pID}) SELECT 1 ELSE SELECT 0") == "1";
        }

        public async Task<bool> ExistsAsync(int pID)
        {
            return await GrpcClient.ExecuteScalar(Channel, $"IF EXISTS(SELECT 1 FROM M_Demo WHERE ID = {pID}) SELECT 1 ELSE SELECT 0") == "1";

        }

        public async Task<FileGrpcData> OutputStream(PagingRequest request)
        {
            FileGrpcData data = null;
            request.Table = "M_Demo";
            string json = JsonSerializer.Serialize(request);
            using (var call = Client.OutputStream(GrpcClient.CreateDataRequest(2, json)))
            {
                var reaponseStream = call.ResponseStream;
                //データの取得
                while (await reaponseStream.MoveNext(CancellationToken.None))
                {
                    data = reaponseStream.Current;
                }
            }
            return data;
        }

        public async Task<DemoTable> GetPageData(PagingRequest request)
        {
            request.Table = "M_Demo";
            string json = JsonSerializer.Serialize(request);
            return await Client.GetDataAsync(GrpcClient.CreateDataRequest(1, json));
        }


        public DataTable GetMasterGridData(string where)
        {
            GrpcTable table = GrpcClient.GetTable(Channel, (int)ETableActionType.DemoMasterGrid, where);
            return table.ToDataTable();
        }

        /// <summary>
        /// 同期データ取得
        /// </summary>
        /// <param name="where"></param>
        /// <returns></returns>
        public DemoTable GetData(string where)
        {
            return Client.GetData(GrpcClient.CreateDataRequest(0, where));
        }

        public async Task<DemoTable> GetDataAsync(string where)
        {
            return await Client.GetDataAsync(GrpcClient.CreateDataRequest(0, where));
        }

        /// <summary>
        /// データ取得
        /// </summary>
        /// <returns></returns>
        public Demo GetItem(int pID)
        {
            DemoTable table = GetData($"ID = {pID}");
            if(table == null || table.ErrNo != 0 || table.Rows.Count == 0) { return null; }
            return table.Rows[0];
        }

        public async Task<DemoTable> GetDataStream()
        {
            return await GetDataStream(string.Empty);
        }

        /// <summary>
        /// データ取得
        /// </summary>
        /// <returns></returns>
        public async Task<DemoTable> GetDataStream(string where)
        {
            DemoTable table = null;
            using (var call = Client.GetDataStream())
            {
                await call.RequestStream.WriteAsync(GrpcClient.CreateDataRequest(0, where));
                await call.RequestStream.CompleteAsync();   // Finish call and report results

                //データの取得
                await foreach (var message in call.ResponseStream.ReadAllAsync<DemoTable>())
                {
                    table = message;
                    break;
                }
            }
            return table;
        }

        public async Task<DataResult> AddAsync(Demo data)
        {
            return await Client.AddAsync(data);
        }

        public DataResult Add(Demo data)
        {
            return Client.Add(data);
        }

        public async Task<DataResult> UpdateAsync(Demo data)
        {
            return await Client.UpdateAsync(data);
        }

        public DataResult Update(Demo data)
        {
            return Client.Update(data);
        }

        /// <summary>
        /// 追加若しくは更新
        /// </summary>
        /// <param name="data"></param>
        /// <param name="add"></param>
        /// <returns></returns>
        private async Task<DataResult> AddOrUpdateStream(Demo data, bool add)
        {
            DataResult result = null;
            using (var call = add ? Client.AddStream() : Client.UpdateStream())
            {
                await call.RequestStream.WriteAsync(data);
                await call.RequestStream.CompleteAsync();   // Finish call and report results

                //データの取得
                await foreach (var message in call.ResponseStream.ReadAllAsync<DataResult>())
                {
                    result = message;
                    break;
                }
            }
            return result;
        }

        /// <summary>
        /// 追加
        /// </summary>
        /// <param name="data"></param>
        /// <returns></returns>
        public async Task<DataResult> AddStream(Demo data)
        {
            return await AddOrUpdateStream(data, true);
        }

        /// <summary>
        /// 更新
        /// </summary>
        /// <param name="data"></param>
        /// <returns></returns>
        public async Task<DataResult> UpdateStream(Demo data)
        {
            return await AddOrUpdateStream(data, true);
        }

        public DataResult Remove(string where)
        {
            SqlWhere data = new SqlWhere()
            {
                Data = ByteString.CopyFromUtf8(where)
            };
            return Client.Remove(data);
        }

        public async Task<DataResult> RemoveAsync(string where)
        {
            SqlWhere data = new SqlWhere()
            {
                Data = ByteString.CopyFromUtf8(where)
            };
            return await Client.RemoveAsync(data);
        }

        /// <summary>
        /// 削除
        /// </summary>
        /// <param name="where"></param>
        /// <returns></returns>
        public async Task<DataResult> RemoveStream(string where)
        {
            DataResult result = null;
            SqlWhere data = new SqlWhere()
            {
                Data = ByteString.CopyFromUtf8(where)
            };

            using (var call = Client.RemoveStream())
            {
                await call.RequestStream.WriteAsync(data);
                await call.RequestStream.CompleteAsync();   // Finish call and report results

                //データの取得
                await foreach (var message in call.ResponseStream.ReadAllAsync<DataResult>())
                {
                    result = message;
                    break;
                }
            }
            return result;
        }

        public DataResult SetData(DemoTable table)
        {
            return Client.SetData(table);
        }

        /// <summary>
        /// バッチ更新
        /// </summary>
        /// <param name="table"></param>
        /// <returns></returns>
        public async Task<DataResult> SetDataStream(DemoTable table)
        {
            DataResult result = null;
            using (var call = Client.SetDataStream())
            {
                await call.RequestStream.WriteAsync(table);
                await call.RequestStream.CompleteAsync();   // Finish call and report results

                //データの取得
                await foreach (var message in call.ResponseStream.ReadAllAsync<DataResult>())
                {
                    result = message;
                    break;
                }
            }
            return result;
        }
    }
}