using Dpz.Core.Web.Pager;

namespace Dpz.Core.Web.Models;

public class Pagination<T>
    where T : new()
{
    /// <summary>
    /// 当前页
    /// </summary>
    public int CurrentPage { get; set; }

    /// <summary>
    /// 总数
    /// </summary>
    public int TotalCount { get; set; }

    /// <summary>
    /// 每页记录数0
    /// </summary>
    public int PageSize { get; set; }

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

    /// <summary>
    /// 开始索引
    /// </summary>
    public int StartItemIndex { get; set; }

    /// <summary>
    /// 结束索引
    /// </summary>
    public int EndItemIndex { get; set; }

    /// <summary>
    /// 数据
    /// </summary>
    public List<T> List { get; set; } = [];

    /// <summary>
    /// create pagination object
    /// </summary>
    /// <param name="pagedList"></param>
    /// <returns></returns>
    public static Pagination<T> Create(IPagedList<T> pagedList)
    {
        var pagination = new Pagination<T>
        {
            List = pagedList.ToList(),
            CurrentPage = pagedList.CurrentPageIndex,
            TotalCount = pagedList.TotalItemCount,
            PageSize = pagedList.PageSize,
            TotalPages = pagedList.TotalPageCount,
            StartItemIndex = pagedList.StartItemIndex,
            EndItemIndex = pagedList.EndItemIndex,
        };
        return pagination;
    }
}