namespace PostFundManagement.Domain;

public sealed class Pagination
{
    const int defaultPage = 1;
    const int defaultPageSize = 100;
    const long defaultIndex = 0;

    public long Index { get; set; }

    public int Page { get; set; }

    public int PageSize { get; set; }

    public Pagination()
    {
        Page = defaultPage;
        PageSize = defaultPageSize;
        Index = defaultIndex;
    }

    public Pagination(int page = defaultPage, int pageSize = defaultPageSize, long index = defaultIndex)
    {
        if (page < 1) page = defaultPage;

        if (pageSize < 1 || pageSize > 100) pageSize = defaultPageSize;

        Page = page;
        PageSize = pageSize;
        Index = index;
    }

    public static Pagination Create(int page = defaultPage, int pageSize = defaultPageSize, long index = defaultIndex)
    {
        if (page < 1) page = defaultPage;

        if (pageSize < 1 || pageSize > 100) pageSize = defaultPageSize;

        return new(page, pageSize, index);
    }
}