namespace YhCore.Common.Utils
{
    /// <summary>
    /// 分页元信息（对应 Java 版 model.tool.PageInfo）。
    /// C# 属性为 PascalCase，ASP.NET Core 默认 camelCase 序列化后
    /// JSON 字段与 Java 版一致（pageNum/pageSize/total/totalPages/hasNext/hasPrev）。
    /// </summary>
    public class PageInfo
    {
        /// <summary>当前页码（从 0 开始，与 Spring Pageable 一致）</summary>
        public int PageNum { get; set; }

        /// <summary>每页大小</summary>
        public int PageSize { get; set; }

        /// <summary>总记录数</summary>
        public int Total { get; set; }

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

        /// <summary>是否有下一页</summary>
        public bool HasNext { get; set; }

        /// <summary>是否有上一页</summary>
        public bool HasPrev { get; set; }

        public PageInfo()
        {
        }

        public PageInfo(int pageNum, int pageSize, int total, int totalPages, bool hasNext, bool hasPrev)
        {
            PageNum = pageNum;
            PageSize = pageSize;
            Total = total;
            TotalPages = totalPages;
            HasNext = hasNext;
            HasPrev = hasPrev;
        }
    }
}