using zzz.Model;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;

namespace zzz.Services
{
    /// <summary>
    /// 服务接口
    /// </summary>
    /// <typeparam name="TEntity"></typeparam>
    public interface IBaseServices<TEntity> where TEntity : class
    {

        /// <summary>
        /// 根据主键取数据
        /// </summary>
        /// <typeparam name="Tout"></typeparam>
        /// <typeparam name="Tkey"></typeparam>
        /// <param name="key"></param>
        /// <returns></returns>
        Task<Tout> GetOneById<Tout,Tkey>(Tkey key) where Tout : class, new();

        /// <summary>
        /// 取分页数据
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="whereExpression"></param>
        /// <param name="pageIndex"></param>
        /// <param name="pageSize"></param>
        /// <param name="orderByFields"></param>
        /// <returns></returns>
        Task<PageModel<T>> GetPageList<T>(
            Expression<Func<T, bool>> whereExpression,
            int pageIndex = 1,
            int pageSize = 20,
            string orderByFields = null);

        /// <summary>
        /// 新增 实体
        /// </summary>
        /// <param name="entity"></param>
        /// <returns></returns>
        Task<bool> AddOne(TEntity entity);
        /// <summary>
        /// 新增
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        Task<bool> AddOne<TAddDto, Tkey>(TAddDto input)
            where Tkey : IEquatable<Tkey>
            //where TAdd : RootEntityTkey<Tkey>
            ;

        /// <summary>
        /// 编辑
        /// </summary>
        /// <param name="input"></param>
        /// <param name="key"></param>
        /// <returns></returns>
        Task<bool> UpdOne<TUpdDto, Tkey>(TUpdDto input)
            where Tkey : IEquatable<Tkey>
            //where TUpd : RootEntityTkey<Tkey>
            ;

        /// <summary>
        /// 删除
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        Task<bool> DelOneSoft<TDel, Tkey>(KeyInputUpd<Tkey> key)
            where Tkey : IEquatable<Tkey>
            where TDel : RootEntityTkey<Tkey>
            ;
    }
}