using MediatR;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FlexJobApi.Core
{
    /// <summary>
    /// 查询分页列表
    /// </summary>
    /// <typeparam name="TResult"></typeparam>
    /// <typeparam name="TItem"></typeparam>
    public abstract class PagedListQuery<TResult, TItem> : IRequest<TResult>
        where TResult : PagedListQueryResult<TItem>, new()
        where TItem : class, new()
    {
        protected PagedListQuery()
        {
            PageModel = new PagedListQueryPageModel();
        }

        /// <summary>
        /// 分页信息
        /// </summary>
        public PagedListQueryPageModel PageModel { get; set; }
    }

    /// <summary>
    /// 查询分页列表-分页信息
    /// </summary>
    public class PagedListQueryPageModel
    {
        public PagedListQueryPageModel()
        {
            Page = 1;
            Rows = 40;
            OrderInput = [];
        }

        /// <summary>
        /// 行数
        /// </summary>
        public int Rows { get; set; }

        /// <summary>
        /// 页码
        /// </summary>
        public int Page { get; set; }

        /// <summary>
        /// 排序
        /// </summary>
        public List<PagedListQueryPageModelOrderInput> OrderInput { get; set; }
    }

    /// <summary>
    /// 查询分页列表-分页信息-排序信息
    /// </summary>
    public class PagedListQueryPageModelOrderInput
    {
        /// <summary>
        /// 属性
        /// </summary>
        public string Property { get; set; }

        /// <summary>
        /// 排序
        /// </summary>
        public EnumPagedListOrder Order { get; set; }
    }

    public interface IPagedListQueryResult<TItem>
        where TItem : class, new()
    {
        PagedListQueryResultPageModel PageModel { get; set; }
        List<TItem> Data { get; set; }
    }

    /// <summary>
    /// 查询分页列表-结果
    /// </summary>
    /// <typeparam name="TItem"></typeparam>
    public class PagedListQueryResult<TItem> : IPagedListQueryResult<TItem>
        where TItem : class, new()
    {
        public PagedListQueryResult()
        {
            Data = [];
        }

        /// <summary>
        /// 分页信息
        /// </summary>
        public PagedListQueryResultPageModel PageModel { get; set; }

        /// <summary>
        /// 数据
        /// </summary>
        public List<TItem> Data { get; set; }
    }

    /// <summary>
    /// 查询分页列表-分页信息
    /// </summary>
    public class PagedListQueryResultPageModel : PagedListQueryPageModel
    {
        /// <summary>
        /// 总数
        /// </summary>
        public int TotalCount { get; set; }

        /// <summary>
        /// 页数
        /// </summary>
        public int TotalPage { get; set; }
    }
}