using System;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Reflection;
using System.Text;

namespace Ant.ORM
{
    /// <summary>
    /// 在此描述QueryCondition的说明
    /// </summary>
    [Serializable]
    public class MakeQueryWhere
    {
        public Dictionary<string, QueryWhereList> QueryList = new Dictionary<string, QueryWhereList>();

        private QueryWhereList ColumnList;
        public MakeQueryWhere()
        {
            ColumnList = new QueryWhereList();
        }


        ///// <summary>
        ///// 表名
        ///// </summary>
        //public string TableName
        //{
        //    get;
        //    set;
        //}

       
        /// <summary>
        /// 并且条件
        /// </summary>
        /// <param name="column"></param>
        /// <returns></returns>
        public MakeQueryWhere And<T>(Expression<Func<T, object>> expression,Operator op,object value) where T : class
        {
            //PropertyInfo propertyInfo = ReflectionHelper.GetProperty(expression) as PropertyInfo;
            //TableColumn tc = new TableColumn();
            //tc.ColumnMetaData = column.ColumnMetaData;
            //tc.TableName = column.TableName;

            //tc.Operatstr = column.Operatstr;
   
            //if (ColumnList.QueryList.IsNull())
            //    ColumnList.QueryList = new List<TableColumn>();
            //foreach (QueryWhereList queryList in QueryList.Values)
            //{
            //    var num = queryList.QueryList.Select(p => p.ColumnName.Equals(tc.ColumnName)).Count();
            //    if (num>0)
            //    {
            //        tc.OverColumnName = tc.ColumnName + num;
            //    }
            //}
            //ColumnList.QueryList.Add(tc);
            //ColumnList.WhereStr = " and ";
            return this;
        }
        /// <summary>
        /// 或者条件
        /// </summary>
        /// <param name="column"></param>
        /// <returns></returns>
        public MakeQueryWhere Or<T>(Expression<Func<T, object>> expression, Operator op, object value) where T : class
        {
            //TableColumn tc = new TableColumn();
            //tc.ColumnMetaData = column.ColumnMetaData;
            //tc.TableName = column.TableName;
            //if (ColumnList.QueryList.IsNull())
            //    ColumnList.QueryList = new List<TableColumn>();
            //foreach (QueryWhereList queryList in QueryList.Values)
            //{
            //    var num = queryList.QueryList.Select(p => p.ColumnName.Equals(tc.ColumnName)).Count();
            //    if (num > 0)
            //    {
            //        tc.OverColumnName = tc.ColumnName + num;
            //    }
            //}
            //ColumnList.QueryList.Add(tc);
            //ColumnList.WhereStr = " or ";
            return this;
        }
        /// <summary>
        /// 设置分组
        /// </summary>
        public void SetGroup()
        {
            QueryList.Add(Guid.NewGuid().ToString(), ColumnList);
            ColumnList = new QueryWhereList();
        }
    }

    /// <summary>
    /// 
    /// </summary>
    public class QueryWhereList
    {
        public List<TableColumn> QueryList
        {
            get;
            set;
        }

        /// <summary>
        /// 操作符
        /// </summary>
        public string WhereStr
        {
            get;
            set;
        }
    }


}