using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Linq.Expressions;
using WX.CRM.Common;

namespace WX.CRM.IBLL
{
    public interface IRepository<T> : IDisposable where T : class
    {
        T Get(Expression<Func<T, bool>> where);

        IEnumerable<T> GetList();

        IEnumerable<T> GetList(Expression<Func<T, bool>> where);

        IEnumerable<T> GetList<TOrderBy>(Expression<Func<T, bool>> where, Expression<Func<T, TOrderBy>> orderBy = null, SortOrder sortOrder = SortOrder.Descending);

        IEnumerable<T> GetList<TOrderBy>(Expression<Func<T, TOrderBy>> orderBy, int pageindex, int pagesize, out int totalRecords
            , SortOrder sortOrder = SortOrder.Descending);

        IEnumerable<T> GetList<TOrderBy>(Expression<Func<T, bool>> where, Expression<Func<T, TOrderBy>> orderBy,
            int pageindex, int pagesize, out int totalRecords, SortOrder sortOrder = SortOrder.Descending);

        IEnumerable<T> GetList<TOrderBy>(Expression<Func<T, bool>> where, Expression<Func<T, TOrderBy>> orderBy,
            Pager pg, SortOrder sortOrder = SortOrder.Descending);

        int Add(T entity);

        void AddList(List<T> list);

        bool Update(T obj);

        void Delete(T obj);

        bool Delete(Expression<Func<T, bool>> where);

        bool Exists(Expression<Func<T, bool>> where);
    }
}