using Microsoft.EntityFrameworkCore.Storage;
using System;
using System.Collections;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Data;
using System.Data.Common;
using System.Linq.Expressions;
using System.Threading;
using System.Threading.Tasks;

namespace APT.Infrastructure.Core
{

    public interface IUnitOfWork : IDependInject
    {
        #region methods

        string ConnectionString { get; }

        /// <summary>
        /// 对数据库执行给定的 DDL/DML 命令。
        /// </summary>
        /// <param name="sql">命令字符串</param>
        /// <param name="parameters">参数</param>
        /// <returns>受影响的行数</returns>
        int ExecuteSqlCommand(string sql, params object[] parameters);
        /// <summary>
        /// 对数据库执行给定的 DDL/DML 命令。
        /// </summary>
        /// <param name="transactionalBehavior">事务行为</param>
        /// <param name="sql">命令字符串</param>
        /// <param name="parameters">参数</param>
        /// <returns>受影响的行数</returns>
        int ExecuteSqlCommand(TransactionalBehavior transactionalBehavior, string sql, params object[] parameters);

        /// <summary>
        /// 对数据库执行给定的 DDL/DML 命令返回reader。
        /// </summary>
        /// <param name="sql">命令字符串</param>
        /// <param name="readerAction">reader委托</param>
        void ExecuteReader(string sql, ReaderColumn[] readerColumns, Action<DbDataReader> readerAction);

        /// <summary>
        /// 对数据库执行给定的 DDL/DML 命令返回reader。
        /// </summary>
        /// <param name="sql">命令字符串</param>
        /// <param name="parameters">参数</param>
        /// <param name="readerAction">reader委托</param>
        void ExecuteReader(string sql, ReaderColumn[] readerColumns, DbParameter[] parameters, Action<DbDataReader> readerAction);

        /// <summary>
        /// 对数据库执行给定的 DDL/DML 命令返回reader。
        /// </summary>
        /// <param name="commandType">命令类型</param>
        /// <param name="sql">命令字符串</param>
        /// <param name="parameters">参数</param>
        /// <param name="readerAction">reader委托</param>
        void ExecuteReader(CommandType commandType, string sql, ReaderColumn[] readerColumns, DbParameter[] parameters, Action<DbDataReader> readerAction);

        /// <summary>
        ///  对数据库执行给定的 DDL/DML 命令。
        /// </summary>
        /// <param name="commandType">命令类型</param>
        /// <param name="sql">命令字符串</param>
        /// <param name="parameters">参数</param>
        /// <returns></returns>
        int ExecuteNonQuery(CommandType commandType, string sql, ReaderColumn[] readerColumns, DbParameter[] parameters);


        /// <summary>
        /// 创建一个原始 SQL 查询，该查询将返回给定类型的元素。
        /// </summary>
        /// <param name="elementType">查询所返回对象的类型</param>
        /// <param name="sql">SQL 查询字符串</param>
        /// <param name="parameters">要应用于 SQL 查询字符串的参数</param>
        /// <returns></returns>
        IEnumerable SqlQuery(Type elementType, string sql, ReaderColumn[] readerColumns, params Object[] parameters);

        /// <summary>
        /// 提交当前单元操作的更改。
        /// </summary>
        /// <returns>操作影响的行数</returns>
        int SaveChanges();
        /// <summary>
        /// 执行数据sql语句
        /// </summary>
        /// <returns>执行数据sql语句</returns>
        Task<int> ExecuteSqlCommandAsync(TransactionalBehavior transactionalBehavior, string sql, params object[] parameters);

        /// <summary>
        /// 异步提交当前单元操作的更改。
        /// </summary>
        /// <returns>操作影响的行数</returns>
        Task<int> SaveChangesAsync(CancellationToken cancellationToken = default(CancellationToken));

        /// <summary>
        /// 开启事务
        /// </summary>
        void BeginTransaction();


        /// <summary>
        /// 提交事务
        /// </summary>
        void CommitTransaction();

        /// <summary>
        /// 回滚事务
        /// </summary>
        void RollbackTransaction();

        T AddEntity<T>(T entity) where T : class;

        void AddEntities<T>(IEnumerable<T> entities) where T : class;

        public void UpdateEntity<T>(T entity) where T : class;

        void UpdateEntities<T>(IEnumerable<T> entities) where T : class;

        void UpdateEntities<T>(IEnumerable<T> entities, params string[] updateField) where T : class;


        void DeleteEntities<T>(IEnumerable<T> entities) where T : class;

        DataBaseType GetDataBaseType();
        T GetEntity<T>(Expression<Func<T, bool>> expression, string[] selectField = null, params string[] paths) where T : class;

        T GetEntity<T>(Expression<Func<T, bool>> expression, string[] selectField = null, bool isTracking = true, params string[] paths) where T : class;
        T GetEntity<T>(Expression<Func<T, bool>> expression, Dictionary<string, DbOrder> orders, string[] selectField,
               bool isTracking = true, params string[] paths) where T : class;

        int GetCount<T>(Expression<Func<T, bool>> expression) where T : class;
        IEnumerable<T> GetEntities<T>(Expression<Func<T, bool>> expression, string[] selectField = null, params string[] paths) where T : class;

        IEnumerable<T> GetEntities<T>(Expression<Func<T, bool>> expression, string[] selectField = null, bool isTracking = true, params string[] paths) where T : class;
        IEnumerable<T> GetOrderEntities<T>(Expression<Func<T, bool>> expression,
            Dictionary<string, DbOrder> orders, string[] selectField = null,
              params string[] paths) where T : class;
        IEnumerable<T> GetOrderEntities<T>(Expression<Func<T, bool>> expression, Dictionary<string, DbOrder> orders, string[] selectField = null,
            bool isTracking = true, params string[] paths) where T : class;
        IEnumerable<T> GetOrderEntities<T>(Expression<Func<T, bool>> expression, Dictionary<string, DbOrder> orders,
            Action<IOrderable<T>> orderBy, string[] selectField,
        bool isTracking = true, params string[] paths) where T : class;

        PagedResultDto<T> GetOrderPageEntities<T>(Expression<Func<T, bool>> expression, Dictionary<string, DbOrder> orders, string[] selectField,
   int pageSize, int startIndex,
       params string[] paths) where T : class;

        PagedResultDto<T> GetOrderPageEntities<T>(Expression<Func<T, bool>> expression, Dictionary<string, DbOrder> orders, string[] selectField,
            int pageSieze, int startIndex, bool isTracking = true,
                params string[] paths) where T : class;
        PagedResultDto<T> GetOrderPageEntities<T>(Expression<Func<T, bool>> expression, Dictionary<string, DbOrder> orders,
        int pageSieze, int startIndex, Action<IOrderable<T>> orderBy, bool isTracking = true,
            params string[] paths) where T : class;


        PagedResultDto<T> GetOrderPageEntities<T>(Expression<Func<T, bool>> expression, Dictionary<string, DbOrder> orders, string[] selectField,
        int pageSize, int startIndex, Action<IOrderable<T>> orderBy, bool isTracking = true,
            params string[] paths) where T : class;

        //
        Task<PagedResultDto<T>> GetOrderPageEntitiesSync<T>(Expression<Func<T, bool>> expression, Dictionary<string, DbOrder> orders,
         int pageSize, int startIndex,
             params string[] paths) where T : class;

        Task<PagedResultDto<T>> GetOrderPageEntitiesSync<T>(Expression<Func<T, bool>> expression, Dictionary<string, DbOrder> orders,
            int pageSieze, int startIndex, bool isTracking = true,
                params string[] paths) where T : class;
        Task<PagedResultDto<T>> GetOrderPageEntitiesSync<T>(Expression<Func<T, bool>> expression, Dictionary<string, DbOrder> orders,
        int pageSieze, int startIndex, Action<IOrderable<T>> orderBy, bool isTracking = true,
            params string[] paths) where T : class;

        PagedResultDto<T> GetPageEntities<T>(Expression<Func<T, bool>> expression, Dictionary<string, DbOrder> orders, string[] selectField,
        int pageSieze, int startIndex, Action<IOrderable<T>> orderBy, bool isTracking = true,
            params string[] paths) where T : class;

        /// <summary>
        /// 根据表名获取表数据结构
        /// </summary>
        /// <param name="tableName"></param>
        /// <returns></returns>
        EFModelTable GetModelTable(string tableName);

        /// <summary>
        /// 根据表名、字段名称获取字段结构
        /// </summary>
        /// <param name="tableName"></param>
        /// <param name="fieldName"></param>
        /// <returns></returns>
        EFModelField GetModelField(string tableName, string fieldName);

        /// <summary>
        /// 根据表名，导航名称获取外键信息
        /// </summary>
        /// <param name="tableName"></param>
        /// <param name="navName"></param>
        /// <returns></returns>
        EFModelForeignKey GetModelForeignKey(string tableName, string navName);
        /// <summary>
        /// 获取所有外键信息
        /// </summary>
        /// <param name="tableName"></param>
        /// <returns></returns>
        List<EFModelForeignKey> GetModelForeignKey(string tableName);

        /// <summary>
        /// 根据表名，ID字段名称获取外键信息
        /// </summary>
        /// <param name="tableName"></param>
        /// <param name="idFieldName"></param>
        /// <returns></returns>
        EFModelForeignKey GetModelForeignKeyById(string tableName, string idFieldName);

        public IEnumerable<TreeNode<T>> GetTreeOrderEntities<T>(Expression<Func<T, bool>> expression, BaseFilter filter,
            Expression<Func<T, bool>> orgExpression, out List<T> resultList, bool isTracking = true,
  params string[] paths) where T : TreeEntityBase<T>, new();
        #endregion
    }
}