using Microsoft.Azure.Cosmos;
using Microsoft.Azure.Cosmos.Linq;
using OpenXmlPowerTools;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Linq.Expressions;
using System.Net;
using System.Reflection;
using System.Text;
using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;
using TEAMModelOS.SDK.Context.Attributes.Azure;
using TEAMModelOS.SDK.Context.Exception;
using TEAMModelOS.SDK.Helper.Common.CollectionHelper;
using TEAMModelOS.SDK.Helper.Common.ReflectorExtensions;
using TEAMModelOS.SDK.Module.AzureCosmosDB.Configuration;

namespace TEAMModelOS.SDK.Module.AzureCosmosDBV3
{
   
    public  class AzureCosmosDBV3Repository  : IAzureCosmosDBV3Repository
    {


        private CosmosClient CosmosClient { get; set; }
        public CosmosDict CosmosDict { get; set; } = new CosmosDict();
        /// <summary>
        /// 数据库名
        /// </summary>
        private string DatabaseId { get; set; }
        /// <summary>
        /// RU
        /// </summary>
        private int CollectionThroughput { get; set; }
        /// <summary>
        /// 数据库对象
        /// </summary>
        private Database database { get; set; }
        /// <summary>
        /// 分页大小
        /// </summary>
        int pageSize = 200;
        /// <summary>
        /// 缓存前缀
        /// </summary>
        private const string CacheCosmosPrefix = "cosmos:";
        /// <summary>
        /// 扫描类
        /// </summary>
        private string[] ScanModel { get; set; }
        /// <summary>
        /// 超时时间
        /// </summary>
        private const int timeoutSeconds = 86400;
        /// <summary>
        /// ttl时长 1秒
        /// </summary>
        private const int ttl = 1;
        /// <summary>
        /// 更新源通知容器
        /// </summary>
        private string leaseId = "AleaseContainer";
        public AzureCosmosDBV3Repository(AzureCosmosDBOptions options, CosmosSerializer cosmosSerializer)
        {
            try
            {
                if (!string.IsNullOrEmpty(options.ConnectionString))
                {
                    CosmosClient = CosmosDBV3ClientSingleton.getInstance(options.ConnectionString, options.ConnectionKey, cosmosSerializer).GetCosmosDBClient();
                }
                else
                {
                    throw new BizException("请设置正确的AzureCosmosDB数据库配置信息！");
                }
                DatabaseId = options.Database;
                CollectionThroughput = options.CollectionThroughput;
                ScanModel = options.ScanModel;
            }
            catch (CosmosException e)
            {
                throw new BizException(e.Message, 500, e.StackTrace);
            }
        }
        public AzureCosmosDBV3Repository(AzureCosmosDBOptions options)
        {
            try
            {
                if (!string.IsNullOrEmpty(options.ConnectionString))
                {
                    CosmosClient = CosmosDBV3ClientSingleton.getInstance(options.ConnectionString, options.ConnectionKey, null).GetCosmosDBClient();

                }
                else
                {
                    throw new BizException("请设置正确的AzureCosmosDB数据库配置信息！");
                }
                DatabaseId = options.Database;
                CollectionThroughput = options.CollectionThroughput;
                ScanModel = options.ScanModel;
            }
            catch (CosmosException e)
            {
                throw new BizException(e.Message, 500, e.StackTrace);
            }
        }

        /// <summary>
        /// 初始化CosmosDB数据库
        /// </summary>
        /// <returns></returns>
        public async Task<CosmosDict> InitializeDatabase() {
            database = await CosmosClient.CreateDatabaseIfNotExistsAsync(DatabaseId, CollectionThroughput);
            FeedIterator<ContainerProperties> resultSetIterator = database.GetContainerQueryIterator<ContainerProperties>();
            while (resultSetIterator.HasMoreResults)
            {
                foreach (ContainerProperties container in await resultSetIterator.ReadNextAsync())
                {
                   CosmosDict.nameCosmos.TryAdd(container.Id, new CosmosModelInfo { container = database.GetContainer(container.Id), cache = false, monitor = false });
                }
            }
            bool isMonitor = false;
            //获取数据库所有的表
            List<Type> types = ReflectorExtensions.GetAllTypeAsAttribute<CosmosDBAttribute>(ScanModel);
            foreach (Type type in types)
            {
                string PartitionKey = GetPartitionKey(type);
                string CollectionName = "";
                int RU = 0;
                bool cache = false;
                bool monitor = false;
                IEnumerable<CosmosDBAttribute> attributes = type.GetCustomAttributes<CosmosDBAttribute>(true);
                if (attributes != null && !string.IsNullOrEmpty(attributes.First<CosmosDBAttribute>().Name))
                {
                    CollectionName = attributes.First<CosmosDBAttribute>().Name;
                }
                else {
                    throw new BizException("必须指定容器名",ResponseCode.PARAMS_ERROR);
                }
                if (attributes.First<CosmosDBAttribute>().Cache)
                {
                    cache = attributes.First<CosmosDBAttribute>().Cache;
                }
                if (attributes.First<CosmosDBAttribute>().Monitor)
                {
                    monitor = attributes.First<CosmosDBAttribute>().Monitor;
                    if (monitor)
                    {
                        isMonitor = true;
                    }
                }
                if (attributes.First<CosmosDBAttribute>().RU > 400)
                {
                    RU = attributes.First<CosmosDBAttribute>().RU;
                }
                else
                {
                    RU = CollectionThroughput;
                }
                //如果表存在于数据则检查RU是否变动，如果不存在则执行创建DocumentCollection
                if (CosmosDict.nameCosmos.TryGetValue(CollectionName, out CosmosModelInfo cosmosModelInfo))
                { //更新RU

                    cosmosModelInfo.cache = cache;
                    Container container = CosmosClient.GetDatabase(DatabaseId).GetContainer(cosmosModelInfo.container.Id);
                    int? throughputResponse = await container.ReadThroughputAsync();
                    if (throughputResponse < RU)
                    {
                        await CosmosClient.GetDatabase(DatabaseId).GetContainer(cosmosModelInfo.container.Id).ReplaceThroughputAsync(RU);
                    }
                    CosmosModelInfo cosmos = new CosmosModelInfo { container = container, cache = cache, monitor = monitor, type = type };
                    CosmosDict.nameCosmos[CollectionName] = cosmos;
                    CosmosDict.typeCosmos.Add(type.Name, cosmos);
                }
                else {
                    ContainerProperties containerProperties = new ContainerProperties { Id = CollectionName, DefaultTimeToLive = -1 };
                    if (!string.IsNullOrEmpty(PartitionKey))
                    {
                        containerProperties.PartitionKeyPath = "/" + PartitionKey;
                    }
                    if (RU > CollectionThroughput)
                    {
                        CollectionThroughput = RU;
                    }
                    Container containerWithConsistentIndexing = await database.CreateContainerIfNotExistsAsync(containerProperties, throughput: CollectionThroughput);
                    CosmosModelInfo cosmos = new CosmosModelInfo { container = containerWithConsistentIndexing, cache = cache, monitor = monitor, type = type };
                    CosmosDict.nameCosmos[CollectionName] = cosmos;
                    CosmosDict.typeCosmos.Add(type.Name, cosmos);
                }
            }
            if (isMonitor)
            {
                ContainerProperties leaseProperties = new ContainerProperties { Id = leaseId, PartitionKeyPath = "/id", DefaultTimeToLive = -1 };
                Container leaseContainer = await database.CreateContainerIfNotExistsAsync(leaseProperties, throughput: CollectionThroughput);
                CosmosDict.nameCosmos.TryAdd(leaseId, new CosmosModelInfo { container = leaseContainer, cache = false, monitor = false });
            }
            return CosmosDict;
        }

        private string GetPartitionKey<T>()
        {
            Type type = typeof(T);
            return GetPartitionKey(type);
        }
        private string GetPartitionKey(Type type)
        {
            PropertyInfo[] properties = type.GetProperties();
            List<PropertyInfo> attrProperties = new List<PropertyInfo>();
            foreach (PropertyInfo property in properties)
            {
                if (property.Name.Equals("PartitionKey"))
                {
                    attrProperties.Add(property);
                    break;
                }
                object[] attributes = property.GetCustomAttributes(true);
                foreach (object attribute in attributes) //2.通过映射，找到成员属性上关联的特性类实例，
                {
                    if (attribute is PartitionKeyAttribute)
                    {
                        attrProperties.Add(property);
                    }
                }
            }
            if (attrProperties.Count <= 0)
            {
                throw new BizException(type.Name + " has no PartitionKey !");
            }
            else
            {
                if (attrProperties.Count == 1)
                {
                    return attrProperties[0].Name;
                }
                else { throw new BizException(type.Name+" PartitionKey can only be single!"); }
            }
        }

        private async Task<CosmosModelInfo> InitializeCollection<T>()
        {
            Type type = typeof(T);
            string partitionKey = GetPartitionKey<T>();
            CosmosDBAttribute cosmosDBAttribute = null;
            IEnumerable<CosmosDBAttribute> attributes = type.GetCustomAttributes<CosmosDBAttribute>(true);
            if (attributes != null && !string.IsNullOrEmpty(attributes.First<CosmosDBAttribute>().Name))
            {
                cosmosDBAttribute = attributes.First<CosmosDBAttribute>();
            }
            else {
                throw new BizException(type.Name+"未指定CosmosDB表名",ResponseCode.PARAMS_ERROR);
            }
            
            return await InitializeCollection(cosmosDBAttribute, type.Name, partitionKey);
        }
        private async Task<CosmosModelInfo> InitializeCollection(CosmosDBAttribute cosmosDBAttribute, string typeName, string PartitionKey)
        {
            /////内存中已经存在这个表则直接返回
            if (CosmosDict.typeCosmos.TryGetValue(typeName, out CosmosModelInfo cosmosModelInfo))
            {
                return cosmosModelInfo;
            }///如果没有则尝试默认创建
            else
            {
                ContainerProperties containerProperties = new ContainerProperties { Id = cosmosDBAttribute.Name };
                if (!string.IsNullOrEmpty(PartitionKey))
                {
                    containerProperties.PartitionKeyPath = "/"+ PartitionKey;
                }

                Container containerWithConsistentIndexing = await database.CreateContainerIfNotExistsAsync(containerProperties, throughput: cosmosDBAttribute.RU);
                CosmosModelInfo cosmosModel = new CosmosModelInfo { container = containerWithConsistentIndexing, cache = cosmosDBAttribute.Cache,monitor= cosmosDBAttribute.Monitor };
                CosmosDict. nameCosmos.TryAdd(cosmosDBAttribute.Name, cosmosModel);
                CosmosDict.typeCosmos.TryAdd(typeName, cosmosModel);
                return cosmosModel;
            }
        }
        /// <summary>
        /// 按TTL删除
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="list"></param>
        /// <returns></returns>
        private async Task<List<T>> DeleteTTL<T>(List<T> list) where T : ID
        {
            CosmosModelInfo container = await InitializeCollection<T>();
            list.ForEach(x => { x.ttl = ttl; });
            list = await DeleteTTlALL(list);
            if (container.cache && RedisHelper.Instance != null)
            {
                list.ForEach(async x => {
                    await RedisHelper.HDelAsync(CacheCosmosPrefix + container.container.Id, x.id);
                });
            }
            return list;
        }
        private async Task<List<T>> DeleteTTlALL<T>(List<T> enyites) where T : ID
        {
            //await Task.Run(() => Parallel.ForEach(entities, new ParallelOptions { MaxDegreeOfParallelism = 2 }, (item) =>
            //{
            //    Task.WaitAll(Update(item));
            //}));

            int pages = (int)Math.Ceiling((double)enyites.Count / pageSize);
            CosmosModelInfo container = await InitializeCollection<T>();
            bool flag = false;
            if (RedisHelper.Exists(CacheCosmosPrefix + container.container.Id))
            {
                flag = true;
            }
            string partitionKey = GetPartitionKey<T>();
            Type type = typeof(T);
            Stopwatch stopwatch = Stopwatch.StartNew();
            for (int i = 0; i < pages; i++)
            {
                List<T> lists = enyites.Skip((i) * pageSize).Take(pageSize).ToList();
                List<KeyValuePair<PartitionKey, Stream>> itemsToInsert = new List<KeyValuePair<PartitionKey, Stream>>();
                lists.ForEach(async x =>
                {
                    x.pk = type.Name;
                    //x.ttl = null;
                    MemoryStream stream = new MemoryStream();
                    await JsonSerializer.SerializeAsync(stream, x, new JsonSerializerOptions { IgnoreNullValues = true });
                    object o = type.GetProperty(partitionKey).GetValue(x, null);
                    KeyValuePair<PartitionKey, Stream> keyValue = new KeyValuePair<PartitionKey, Stream>(new PartitionKey(o.ToString()), stream);
                    itemsToInsert.Add(keyValue);
                });
                List<Task> tasks = new List<Task>(lists.Count);
                itemsToInsert.ForEach(item =>
                {
                    tasks.Add(container.container.UpsertItemStreamAsync(item.Value, item.Key)
                        .ContinueWith((Task<ResponseMessage> task) =>
                        {
                            //using (ResponseMessage response = task.Result)
                            //{
                            //    if (!response.IsSuccessStatusCode)
                            //    {
                            //    }
                            //}
                        }
                        ));
                });
                await Task.WhenAll(tasks);
                if (container.cache && RedisHelper.Instance != null)
                {
                    lists.ForEach(async x => {
                        await RedisHelper.HSetAsync(CacheCosmosPrefix + container.container.Id, x.id, x);
                    });
                }
            }
            if (container.cache && RedisHelper.Instance != null && !flag)
            {
                await RedisHelper.ExpireAsync(CacheCosmosPrefix + container.container.Id, timeoutSeconds);
            }
            stopwatch.Stop();
            return enyites;
        }

        public async Task<List<IdPk>> DeleteAll<T>(List<IdPk> ids) where T : ID
        {

         //   string pk = GetPartitionKey<T>();
            CosmosModelInfo container = await InitializeCollection<T>();
            List<IdPk> idPks = new List<IdPk>();
            if (container.monitor)
            {
                List<T> list = await FindByDict<T>(new Dictionary<string, object>() { { "id", ids.Select(x => x.id).ToArray() } });
                list = await DeleteTTL(list);
                return ids;
            }
            else
            {
                int pages = (int)Math.Ceiling((double)ids.Count / pageSize);
                Stopwatch stopwatch = Stopwatch.StartNew();
                for (int i = 0; i < pages; i++)
                {
                    List<IdPk> lists = ids.Skip((i) * pageSize).Take(pageSize).ToList();
                    List<Task> tasks = new List<Task>(lists.Count);
                    lists.ForEach(item =>
                    {
                        tasks.Add(container.container.DeleteItemStreamAsync(item.id, new PartitionKey(item.pk))
                            .ContinueWith((Task<ResponseMessage> task) =>
                            {
                                using (ResponseMessage response = task.Result)
                                {
                                    idPks.Add(new IdPk { id = item.id, pk = item.pk, StatusCode = response.StatusCode });
                                    //    if (!response.IsSuccessStatusCode)
                                    //    {
                                    //    }
                                }
                            }
                            ));
                    });
                    await Task.WhenAll(tasks);
                    if (container.cache && RedisHelper.Instance != null)
                    {
                        lists.ForEach(async x => {
                            await RedisHelper.HDelAsync(CacheCosmosPrefix + container.container.Id, x.id);
                        });
                    }
                }
                stopwatch.Stop();
                return idPks;
            }
        }
        public async Task<List<IdPk>> DeleteAll<T>(Dictionary<string, object> dict) where T : ID
        {
            if (dict.Keys.Count > 0)
            {
                List<T> list = await FindByDict<T>(dict);
                return await DeleteAll(list);
            }
            else
            {
                throw new BizException("参数为空", 500);
            }

        }
        public async Task<List<IdPk>> DeleteAll<T>(List<T> enyites) where T : ID
        {
            Type type = typeof(T);
            string pk = GetPartitionKey<T>();
            CosmosModelInfo container = await InitializeCollection<T>();
            List<IdPk> idPks = new List<IdPk>();

            if (container.monitor)
            {
                enyites = await DeleteTTL(enyites);
                foreach (T t in enyites)
                {
                    object o = type.GetProperty(pk).GetValue(t, null);
                    idPks.Add(new IdPk { id = t.id, pk = o.ToString(), StatusCode = HttpStatusCode.NoContent });
                }
                return idPks;
            }
            else
            {
                int pages = (int)Math.Ceiling((double)enyites.Count / pageSize);
                Stopwatch stopwatch = Stopwatch.StartNew();
                for (int i = 0; i < pages; i++)
                {
                    List<T> lists = enyites.Skip((i) * pageSize).Take(pageSize).ToList();
                    List<KeyValuePair<PartitionKey, string>> itemsToInsert = new List<KeyValuePair<PartitionKey, string>>();
                    lists.ForEach(x =>
                    {
                        object o = type.GetProperty(pk).GetValue(x, null);
                        KeyValuePair<PartitionKey, string> keyValue = new KeyValuePair<PartitionKey, string>(new PartitionKey(o.ToString()), x.id);
                        itemsToInsert.Add(keyValue);
                    });

                    List<Task> tasks = new List<Task>(lists.Count);
                    itemsToInsert.ForEach(item =>
                    {
                        tasks.Add(container.container.DeleteItemStreamAsync(item.Value, item.Key)
                        .ContinueWith((Task<ResponseMessage> task) =>
                        {
                            using (ResponseMessage response = task.Result)
                            {

                                idPks.Add(new IdPk { id = item.Value, pk = item.Key.ToString(), StatusCode = response.StatusCode });

                            }
                        }
                        ));
                    });
                    await Task.WhenAll(tasks); if (container.cache && RedisHelper.Instance != null)
                    {
                        lists.ForEach(async x => {
                            await RedisHelper.HDelAsync(CacheCosmosPrefix + container.container.Id, x.id);
                        });
                    }
                }
                stopwatch.Stop();
                return idPks;
            }
        }
        public async Task<IdPk> DeleteAsync<T>(IdPk idPk) where T : ID
        {
            return await DeleteAsync<T>(idPk.id, idPk.pk);
        }
        public async Task<IdPk> DeleteAsync<T>(string id, string pk) where T : ID
        {

          //  pk = GetPartitionKey<T>();
            CosmosModelInfo container = await InitializeCollection<T>();
            if (container.monitor)
            {
                List<T> list = await FindByDict<T>(new Dictionary<string, object>() { { "id", id } });
                if (list.Count > 0)
                {
                    await DeleteTTL<T>(list);
                    return new IdPk { id = id, pk = pk, StatusCode = HttpStatusCode.NoContent };
                }
                else
                {
                    throw new BizException("未找到ID匹配的数据，删除失败");
                }
            }
            else
            {
                ResponseMessage response = await container.container.DeleteItemStreamAsync(id: id, partitionKey: new PartitionKey(pk));
                if (container.cache && RedisHelper.Instance != null)
                {
                    await RedisHelper.HDelAsync(CacheCosmosPrefix + container.container.Id, id);
                }
                return new IdPk { id = id, pk = pk, StatusCode = response.StatusCode };
            }

        }

        public async Task<IdPk> DeleteAsync<T>(T entity) where T : ID
        {
            CosmosModelInfo container = await InitializeCollection<T>();
            string partitionKey = GetPartitionKey<T>();
            Type type = typeof(T);
             object o = type.GetProperty(partitionKey).GetValue(entity, null);
            if (container.monitor)
            {
                await DeleteTTL<T>(new List<T>() { entity });
                return new IdPk { id = entity.id, pk = o.ToString(), StatusCode = HttpStatusCode.NoContent };
            }
            else
            {
                ResponseMessage response = await container.container.DeleteItemStreamAsync(id: entity.id, partitionKey: new PartitionKey(o.ToString()));
                if (container.cache && RedisHelper.Instance != null)
                {
                    await RedisHelper.HDelAsync(CacheCosmosPrefix + container.container.Id, entity.id);
                }
                return new IdPk { id = entity.id, pk = partitionKey, StatusCode = response.StatusCode };
            }
        }
        public async Task<List<T>> FindAll<T>(List<string> propertys = null) where T : ID
        {
            CosmosModelInfo container = await InitializeCollection<T>();
            string pk = typeof(T).Name;
            StringBuilder sql;
            sql = SQLHelperParametric.GetSQLSelect(propertys);
            sql.Append(" where c.pk ='"+ pk + "'");
            CosmosDbQuery cosmosDbQuery = new CosmosDbQuery { QueryText = sql.ToString() };
            FeedIterator<T> query = container.container.GetItemQueryIterator<T>(queryDefinition: cosmosDbQuery.CosmosQueryDefinition);
            return await ResultsFromFeedIterator(query);

        }
        private async Task<List<T>> ResultsFromFeedIterator<T>(FeedIterator<T> query, int? maxItemCount = null)
        {
            List<T> results = new List<T>();
            while (query.HasMoreResults)
            {
                foreach (T t in await query.ReadNextAsync())
                {
                    results.Add(t);
                    if (results.Count == maxItemCount)
                    {
                        return results;
                    }
                }
            }
            return results;
        }
        private async Task<List<T>> ResultsFromFeedIterator<T>(FeedIterator<T> query, Func<List<T>, Task> batchAction, int itemsPerPage)
        {
            List<T> results = new List<T>();
            while (query.HasMoreResults)
            {
                if (results.Count() >= itemsPerPage)
                {
                    await batchAction(results);
                    results.Clear();
                }

                results.AddRange(await query.ReadNextAsync());
            }

            if (results.Count() > 0)
            {
                await batchAction(results);
                results.Clear();
            }

            return results;
        }
        public async Task<List<dynamic>> FindByDict(string CollectionName, Dictionary<string, object> dict, List<string> propertys = null)
        {
            if (CosmosDict.typeCosmos.TryGetValue(CollectionName, out CosmosModelInfo container))
            {
                //StringBuilder sql = new StringBuilder("select value(c) from c");
                //SQLHelper.GetSQL(dict, ref sql);
                //CosmosDbQuery cosmosDbQuery = new CosmosDbQuery, int itemsPerPage = -1, int? 
                //{
                //    QueryText = sql.ToString()

                //};

                string pk = container.type.Name;
                StringBuilder sql;
                sql = SQLHelperParametric.GetSQLSelect(propertys);
                CosmosDbQuery cosmosDbQuery = SQLHelperParametric.GetSQL(dict, sql, pk);
                QueryRequestOptions queryRequestOptions = GetDefaultQueryRequestOptions(itemsPerPage: GetEffectivePageSize(-1, null));
                FeedIterator<dynamic> query = container.container.GetItemQueryIterator<dynamic>(queryDefinition: cosmosDbQuery.CosmosQueryDefinition, requestOptions: queryRequestOptions);
                return await ResultsFromFeedIterator(query);
            }
            else
            {
                throw new BizException("CollectionName named:" + CollectionName + " dose not exsit in Database!");
            }

        }

        public async Task<List<int>> FindCountByDict<T>(Dictionary<string, object> dict) {
            CosmosModelInfo container = await InitializeCollection<T>();
            string pk = typeof(T).Name;
            StringBuilder sql = new StringBuilder("select  value count(c)  from c");
            CosmosDbQuery cosmosDbQuery = SQLHelperParametric.GetSQL(dict, sql, pk);
            if (cosmosDbQuery == null)
            {
                return new List<int> { 0 };
            }
            QueryRequestOptions queryRequestOptions = GetDefaultQueryRequestOptions(itemsPerPage: GetEffectivePageSize(-1, null));
            FeedIterator<int> query = container.container.GetItemQueryIterator<int>(queryDefinition: cosmosDbQuery.CosmosQueryDefinition, requestOptions: queryRequestOptions);
            return await ResultsFromFeedIterator(query);
        }

        public async Task<List<dynamic>> FindCountByDict(string CollectionName, Dictionary<string, object> dict)
        {
            if (CosmosDict.typeCosmos.TryGetValue(CollectionName, out CosmosModelInfo container))
            {
                string pk = container.type.Name;
                dict.Remove("@CURRPAGE");
                dict.Remove("@PAGESIZE");
                dict.Remove("@ASC");
                dict.Remove("@DESC");
                StringBuilder sql = new StringBuilder("select  value count(c)  from c");
                CosmosDbQuery cosmosDbQuery = SQLHelperParametric.GetSQL(dict, sql, pk);
                if (cosmosDbQuery == null) {
                    return new List<dynamic> {0 };
                }
                QueryRequestOptions queryRequestOptions = GetDefaultQueryRequestOptions(itemsPerPage: GetEffectivePageSize(-1, null));
                FeedIterator<dynamic> query = container.container.GetItemQueryIterator<dynamic>(queryDefinition: cosmosDbQuery.CosmosQueryDefinition, requestOptions: queryRequestOptions);
                return await ResultsFromFeedIterator(query);
            }
            else
            {
                throw new BizException("CollectionName named:" + CollectionName + " dose not exsit in Database!");
            }
        }

        public async Task<List<T>> FindByParams<T>(Dictionary<string, object> dict, List<string> propertys = null) where T : ID
        {
            return await FindByDict<T>(dict, propertys);
        }
        public async Task<List<T>> FindByDict<T>(Dictionary<string, object> dict, List<string> propertys = null) where T : ID
        {
            StringBuilder sql;
            sql = SQLHelperParametric.GetSQLSelect(propertys);
            string pk = typeof(T).Name;
            CosmosDbQuery cosmosDbQuery = SQLHelperParametric.GetSQL(dict, sql, pk);
            QueryRequestOptions queryRequestOptions = GetDefaultQueryRequestOptions(itemsPerPage: GetEffectivePageSize(-1, null));
            return await ResultsFromQueryAndOptions<T>(cosmosDbQuery, queryRequestOptions);
        }


        private async Task<List<T>> ResultsFromQueryAndOptions<T>(CosmosDbQuery cosmosDbQuery, QueryRequestOptions queryOptions)
        {
            if (cosmosDbQuery == null) {
                return null;
            }
            CosmosModelInfo container = await InitializeCollection<T>();
            FeedIterator<T> query = container.container.GetItemQueryIterator<T>(
                queryDefinition: cosmosDbQuery.CosmosQueryDefinition,
                requestOptions: queryOptions);

            return await ResultsFromFeedIterator(query);
        }
        private int GetEffectivePageSize(int itemsPerPage, int? maxItemCount)
        {
            return itemsPerPage == -1 ? maxItemCount ?? itemsPerPage : Math.Min(maxItemCount ?? itemsPerPage, itemsPerPage);
        }
        private QueryRequestOptions GetDefaultQueryRequestOptions(int? itemsPerPage = null,
        int? maxBufferedItemCount = null,
        int? maxConcurrency = null)
        {
            QueryRequestOptions queryRequestOptions = new QueryRequestOptions
            {
                MaxItemCount = itemsPerPage == -1 ? 1000 : itemsPerPage,
                MaxBufferedItemCount = maxBufferedItemCount ?? 100,
                MaxConcurrency = maxConcurrency ?? 50
            };

            return queryRequestOptions;
        }
        private async Task<List<T>> ResultsFromQueryAndOptions<T>(CosmosDbQuery cosmosDbQuery, Func<List<T>, Task> batchAction, QueryRequestOptions queryOptions)
        {
            CosmosModelInfo container = await InitializeCollection<T>();
            FeedIterator<T> query = container.container.GetItemQueryIterator<T>(
                queryDefinition: cosmosDbQuery.CosmosQueryDefinition,
                requestOptions: queryOptions);

            return await ResultsFromFeedIterator(query, batchAction, queryOptions.MaxItemCount ?? 0);
        }



        private QueryRequestOptions GetQueryRequestOptions(int itemsPerPage)
        {
            QueryRequestOptions queryRequestOptions = new QueryRequestOptions
            {
                MaxItemCount = itemsPerPage
            };

            return queryRequestOptions;
        }
        public async Task<List<T>> FindLinq<T>(Expression<Func<T, bool>> query = null, Expression<Func<T, object>> order = null, bool isDesc = false) where T : ID
        {

            string pk = typeof(T).Name;
            query = query.And(x => x.pk == pk);
            //QueryRequestOptions queryRequestOptions = GetQueryRequestOptions(itemsPerPage);
            QueryRequestOptions queryRequestOptions = GetDefaultQueryRequestOptions(itemsPerPage: GetEffectivePageSize(-1, null));
            FeedIterator<T> feedIterator;
            CosmosModelInfo container = await InitializeCollection<T>();

            if (query == null)
            {
                if (order != null)
                {
                    if (isDesc)
                    {
                        feedIterator = container.container
                       .GetItemLinqQueryable<T>(requestOptions: queryRequestOptions).OrderByDescending(order)
                       .ToFeedIterator();
                    }
                    else
                    {
                        feedIterator = container.container
                       .GetItemLinqQueryable<T>(requestOptions: queryRequestOptions).OrderBy(order)
                       .ToFeedIterator();
                    }
                }
                else
                {
                    feedIterator = container.container
                   .GetItemLinqQueryable<T>(requestOptions: queryRequestOptions)
                   .ToFeedIterator();
                }
            }
            else
            {
                if (order != null)
                {
                    if (isDesc)
                    {
                        feedIterator = container.container
                        .GetItemLinqQueryable<T>(requestOptions: queryRequestOptions)
                        .Where(query).OrderByDescending(order)
                        .ToFeedIterator();
                    }
                    else
                    {
                        feedIterator = container.container
                    .GetItemLinqQueryable<T>(requestOptions: queryRequestOptions)
                    .Where(query).OrderBy(order)
                    .ToFeedIterator();
                    }
                }
                else
                {
                    feedIterator = container.container
                    .GetItemLinqQueryable<T>(requestOptions: queryRequestOptions)
                    .Where(query)
                    .ToFeedIterator();
                }
            }
            return await ResultsFromFeedIterator<T>(feedIterator);
        }

        public async Task<List<T>> FindSQL<T>(string sql, Dictionary<string, object> Parameters = null) where T : ID
        {
            if (sql.Contains(".pk"))
            {
                CosmosModelInfo container = await InitializeCollection<T>();
                QueryRequestOptions queryOptions = GetQueryRequestOptions(GetEffectivePageSize(-1, null));
                if (Parameters != null)
                {
                    CosmosDbQuery cosmosDbQuery = new CosmosDbQuery
                    {
                        QueryText = sql,
                        Parameters = Parameters
                    };
                    FeedIterator<T> feedIterator = container.container
                    .GetItemQueryIterator<T>(cosmosDbQuery.CosmosQueryDefinition, requestOptions: queryOptions);
                    return await ResultsFromFeedIterator(feedIterator);
                }
                else
                {
                    QueryDefinition queryDefinition = new QueryDefinition(sql);
                    return await ResultsFromFeedIterator<T>(container.container.GetItemQueryIterator<T>(queryDefinition));
                }
            }
            else
            {
                throw new BizException("查询参数必须设置 .pk ", ResponseCode.PARAMS_ERROR);
            }
        }
        public async Task<T> Save<T>(T entity) where T : ID
        {
            try
            {
                CosmosModelInfo container = await InitializeCollection<T>();
                entity.pk = container.type.Name;
                entity.ttl = null;
                ItemResponse<T> response = await container.container.CreateItemAsync<T>(entity);
                if (container.cache && RedisHelper.Instance != null)
                {
                    if (!RedisHelper.Exists(CacheCosmosPrefix + container.container.Id))
                    {
                        await RedisHelper.HSetAsync(CacheCosmosPrefix + container.container.Id, entity.id, entity);
                    }
                    else
                    {
                        await RedisHelper.HSetAsync(CacheCosmosPrefix + container.container.Id, entity.id, entity);
                        await RedisHelper.ExpireAsync(CacheCosmosPrefix + container.container.Id, timeoutSeconds);
                    }

                }
                return response.Resource;
            }
            catch (Exception e)
            {
                throw new BizException(e.Message);
            }
        }

        public async Task<List<T>> SaveAll<T>(List<T> enyites) where T : ID
        {
            int pages = (int)Math.Ceiling((double)enyites.Count / pageSize);
            CosmosModelInfo container = await InitializeCollection<T>();
            bool flag = false;
            if (RedisHelper.Exists(CacheCosmosPrefix + container.container.Id))
            {
                flag = true;
            }
            string partitionKey = GetPartitionKey<T>();
            Type type = typeof(T);
            Stopwatch stopwatch = Stopwatch.StartNew();
            for (int i = 0; i < pages; i++)
            {
                List<T> lists = enyites.Skip((i) * pageSize).Take(pageSize).ToList();
                List<KeyValuePair<PartitionKey, Stream>> itemsToInsert = new List<KeyValuePair<PartitionKey, Stream>>();
                lists.ForEach(async x =>
                {
                    x.pk = type.Name;
                    x.ttl = null;
                    MemoryStream stream = new MemoryStream();
                    await JsonSerializer.SerializeAsync(stream, x, new JsonSerializerOptions { IgnoreNullValues = true });
                    object o = type.GetProperty(partitionKey).GetValue(x, null);
                    KeyValuePair<PartitionKey, Stream> keyValue = new KeyValuePair<PartitionKey, Stream>(new PartitionKey(o.ToString()), stream);
                    itemsToInsert.Add(keyValue);
                });
                List<Task> tasks = new List<Task>(lists.Count);
                itemsToInsert.ForEach(item =>
                {
                    tasks.Add(container.container.CreateItemStreamAsync(item.Value, item.Key)
                        .ContinueWith((Task<ResponseMessage> task) =>
                        {
                            using (ResponseMessage response = task.Result)
                            {
                                if (!response.IsSuccessStatusCode)
                                {
                                }
                            }
                        }
                        ));
                });
                await Task.WhenAll(tasks);
                if (container.cache && RedisHelper.Instance != null)
                {
                    lists.ForEach(async x => {
                        await RedisHelper.HSetAsync(CacheCosmosPrefix + container.container.Id, x.id, x);
                    });
                }
            }
            if (container.cache && RedisHelper.Instance != null && !flag)
            {
                await RedisHelper.ExpireAsync(CacheCosmosPrefix + container.container.Id, timeoutSeconds);
            }
            stopwatch.Stop();
            return enyites;
        }
        public async Task<T> SaveOrUpdate<T>(T entity) where T : ID
        {
            CosmosModelInfo container = await InitializeCollection<T>();
            entity.pk = container.type.Name;
            entity.ttl = null;
            ItemResponse<T> response = await container.container.UpsertItemAsync(item: entity);
            if (container.cache && RedisHelper.Instance != null)
            {
                if (!RedisHelper.Exists(CacheCosmosPrefix + container.container.Id))
                {
                    await RedisHelper.HSetAsync(CacheCosmosPrefix + container.container.Id, entity.id, entity);
                }
                else
                {
                    await RedisHelper.HSetAsync(CacheCosmosPrefix + container.container.Id, entity.id, entity);
                    await RedisHelper.ExpireAsync(CacheCosmosPrefix + container.container.Id, timeoutSeconds);
                }
            }
            return response.Resource;
        }
        public async Task<List<T>> SaveOrUpdateAll<T>(List<T> enyites) where T : ID
        {
            //await Task.Run(() => Parallel.ForEach(entities, new ParallelOptions { MaxDegreeOfParallelism = 2 }, (item) =>
            //{
            //    Task.WaitAll(Update(item));
            //}));

            int pages = (int)Math.Ceiling((double)enyites.Count / pageSize);
            CosmosModelInfo container = await InitializeCollection<T>();
            bool flag = false;
            if (RedisHelper.Exists(CacheCosmosPrefix + container.container.Id))
            {
                flag = true;
            }
            string partitionKey = GetPartitionKey<T>();
            Type type = typeof(T);
            Stopwatch stopwatch = Stopwatch.StartNew();
            for (int i = 0; i < pages; i++)
            {
                List<T> lists = enyites.Skip((i) * pageSize).Take(pageSize).ToList();
                List<KeyValuePair<PartitionKey, Stream>> itemsToInsert = new List<KeyValuePair<PartitionKey, Stream>>();
                lists.ForEach(async x =>
                {
                    x.pk = type.Name;
                    x.ttl = null;
                    MemoryStream stream = new MemoryStream();
                    await JsonSerializer.SerializeAsync(stream, x, new JsonSerializerOptions { IgnoreNullValues = true });
                     object o = type.GetProperty(partitionKey).GetValue(x, null);
                    KeyValuePair<PartitionKey, Stream> keyValue = new KeyValuePair<PartitionKey, Stream>(new PartitionKey(o.ToString()), stream);
                    itemsToInsert.Add(keyValue);
                });
                List<Task> tasks = new List<Task>(lists.Count);
                itemsToInsert.ForEach(item =>
                {
                    tasks.Add(container.container.UpsertItemStreamAsync(item.Value, item.Key)
                        .ContinueWith((Task<ResponseMessage> task) =>
                        {
                            //using (ResponseMessage response = task.Result)
                            //{
                            //    if (!response.IsSuccessStatusCode)
                            //    {
                            //    }
                            //}
                        }
                        ));
                });
                await Task.WhenAll(tasks);
                if (container.cache && RedisHelper.Instance != null)
                {
                    lists.ForEach(async x => {
                        await RedisHelper.HSetAsync(CacheCosmosPrefix + container.container.Id, x.id, x);
                    });
                }
            }
            if (container.cache && RedisHelper.Instance != null && !flag)
            {
                await RedisHelper.ExpireAsync(CacheCosmosPrefix + container.container.Id, timeoutSeconds);
            }
            stopwatch.Stop();
            return enyites;
        }
        public async Task<T> Update<T>(T entity) where T : ID
        {
            CosmosModelInfo container = await InitializeCollection<T>();
            string partitionKey = GetPartitionKey<T>();
            Type type = typeof(T);
            entity.pk = type.Name;
            entity.ttl = null;
            object o = type.GetProperty(partitionKey).GetValue(entity, null);
            ItemResponse<T> response = await container.container.ReplaceItemAsync(entity, entity.id, new PartitionKey(o.ToString()));
            if (container.cache && RedisHelper.Instance != null)
            {
                if (!RedisHelper.Exists(CacheCosmosPrefix + container.container.Id))
                {
                    await RedisHelper.HSetAsync(CacheCosmosPrefix + container.container.Id, entity.id, entity);
                }
                else
                {
                    await RedisHelper.HSetAsync(CacheCosmosPrefix + container.container.Id, entity.id, entity);
                    await RedisHelper.ExpireAsync(CacheCosmosPrefix + container.container.Id, timeoutSeconds);
                }
            }
            return response.Resource;
        }
        internal class Item
        {
            public string id { get; set; }
            public string pk { get; set; }
            public MemoryStream stream { get; set; }
        }
        public async Task<List<T>> UpdateAll<T>(List<T> enyites) where T : ID
        {
            //await Task.Run(() => Parallel.ForEach(entities, new ParallelOptions { MaxDegreeOfParallelism = 2 }, (item) =>
            //{
            //    Task.WaitAll(Update(item));
            //}));

            int pages = (int)Math.Ceiling((double)enyites.Count / pageSize);
            CosmosModelInfo container = await InitializeCollection<T>();
            bool flag = false;
            if (RedisHelper.Exists(CacheCosmosPrefix + container.container.Id))
            {
                flag = true;
            }
            string partitionKey = GetPartitionKey<T>();
            Type type = typeof(T);
            Stopwatch stopwatch = Stopwatch.StartNew();
            for (int i = 0; i < pages; i++)
            {
                List<T> lists = enyites.Skip((i) * pageSize).Take(pageSize).ToList();
                List<Item> itemsToInsert = new List<Item>();
                lists.ForEach(async x =>
                {
                    x.pk = type.Name;
                    x.ttl = null;
                    MemoryStream stream = new MemoryStream();
                    await JsonSerializer.SerializeAsync(stream, x, new JsonSerializerOptions { IgnoreNullValues = true });
                    object o = type.GetProperty(partitionKey).GetValue(x, null);
                    Item keyValue = new Item { id = x.id, pk = o.ToString(), stream = stream };
                    itemsToInsert.Add(keyValue);
                });
                List<Task> tasks = new List<Task>(lists.Count);
                itemsToInsert.ForEach(item =>
                {
                    tasks.Add(container.container.ReplaceItemStreamAsync(item.stream, item.id, new PartitionKey(item.pk))
                        .ContinueWith((Task<ResponseMessage> task) =>
                        {
                            //using (ResponseMessage response = task.Result)
                            //{
                            //    if (!response.IsSuccessStatusCode)
                            //    {
                            //    }
                            //}
                        }
                        ));
                });
                await Task.WhenAll(tasks);
                if (container.cache && RedisHelper.Instance != null)
                {
                    lists.ForEach(async x => {
                        await RedisHelper.HSetAsync(CacheCosmosPrefix + container.container.Id, x.id, x);
                    });
                }
            }
            if (container.cache && RedisHelper.Instance != null && !flag)
            {
                await RedisHelper.ExpireAsync(CacheCosmosPrefix + container.container.Id, timeoutSeconds);
            }
            stopwatch.Stop();
            return enyites;
        }
        private async Task<List<T>> FindByIdAsSql<T>(string id) where T : ID
        {
            CosmosModelInfo container = await InitializeCollection<T>();
            string pk = container.type.Name;
            CosmosDbQuery cosmosDbQuery = new CosmosDbQuery
            {
                QueryText = @"SELECT *
                            FROM    c 
                            WHERE c.pk='" + pk + "' and   c.id = @id",
                Parameters = new Dictionary<string, object>
                 {

                    { "@id",id}
                }
            };
            FeedIterator<T> feedIterator = container.container
               .GetItemQueryIterator<T>(cosmosDbQuery.CosmosQueryDefinition);
            return (await ResultsFromFeedIterator(feedIterator)).ToList();
        }
        public async Task<T> FindByIdPk<T>(string id, string pk) where T : ID
        {
            CosmosModelInfo container = await InitializeCollection<T>();
            try {
                ItemResponse<T> response = await container.container.ReadItemAsync<T>(id: id, partitionKey: new PartitionKey(pk));
                return response.Resource;
            }
            catch (Exception ex) {
                return default;
            }
           
        }
        public async Task<List<T>> FindById<T>(string id, bool cache = true) where T : ID
        {
            CosmosModelInfo container = await InitializeCollection<T>();
            if (container.cache && RedisHelper.Instance != null && cache == true)
            {

                return await RedisHelper.CacheShellAsync(CacheCosmosPrefix + container.container.Id, id, timeoutSeconds, () => { return FindByIdAsSql<T>(id); });

            }
            else
            {
                return await FindByIdAsSql<T>(id);
            }

        }
        public async Task<List<T>> FindByIds<T>(List<string> ids) where T : ID
        {
            CosmosModelInfo container = await InitializeCollection<T>();

            if (container.cache && RedisHelper.Instance != null)
            {
                List<T> list = new List<T>();
                List<string> NotIn = new List<string>();
                foreach (string id in ids)
                {
                    if (!await RedisHelper.HExistsAsync(CacheCosmosPrefix + container.container.Id, id))
                    {
                        NotIn.Add(id);
                    }
                    else
                    {
                        list.Add(await RedisHelper.HGetAsync<T>(CacheCosmosPrefix + container.container.Id, id));
                    }
                }
                if (NotIn.IsNotEmpty())
                {
                    List<T> noInList = await FindByDict<T>(new Dictionary<string, object> { { "id", NotIn.ToArray() } });
                    noInList.ForEach(x => { RedisHelper.HSet(CacheCosmosPrefix + container.container.Id, x.id, x); RedisHelper.Expire(CacheCosmosPrefix + container.container.Id, timeoutSeconds); });
                    list.AddRange(noInList);
                }
                return list;
            }
            else
            {
                return await FindByDict<T>(new Dictionary<string, object> { { "id", ids.ToArray() } });
            }
        }
        public async Task<dynamic> FindById(string typeName, string id)
        {
            if (CosmosDict.typeCosmos.TryGetValue(typeName, out CosmosModelInfo container))
            {
                if (container.cache && RedisHelper.Instance != null)
                {

                    return await RedisHelper.CacheShellAsync(CacheCosmosPrefix + container.container.Id, id, timeoutSeconds, () => { return FindByDict(typeName, new Dictionary<string, object> { { "id", id } }); });

                }
                else
                {
                    return await FindByDict(typeName, new Dictionary<string, object> { { "id", id } });
                }
            }
            else
            {
                throw new BizException("CollectionName named:" + typeName + " dose not exsit in Database!");
            }
        }
        public async Task<List<dynamic>> FindByIds(string typeName, List<string> ids)
        {
            if (CosmosDict. typeCosmos.TryGetValue(typeName, out CosmosModelInfo container))
            {
                if (container.cache && RedisHelper.Instance != null)
                {

                    return await RedisHelper.CacheShellAsync(CacheCosmosPrefix + container.container.Id, timeoutSeconds, () => { return FindByDict(typeName, new Dictionary<string, object> { { "id", ids.ToArray() } }); });

                }
                else
                {
                    return await FindByDict(typeName, new Dictionary<string, object> { { "id", ids.ToArray() } });
                }
            }
            else
            {
                throw new BizException("CollectionName named:" + typeName + " dose not exsit in Database!");
            }
        }
    }
}