namespace DMSDAL.DTO.ESSDocument
{
    /// <summary>
    /// Safe response DTO — no internal storage paths.
    /// </summary>
    public class ESSDocumentItemDTO
    {
        public int     AttachmentId     { get; set; }
        public string  CategoryCode     { get; set; } = string.Empty;
        public string  CategoryName     { get; set; } = string.Empty;
        public int?    PeriodYear       { get; set; }
        public int?    PeriodMonth      { get; set; }
        public string? PeriodLabel      { get; set; }
        public string  FileName         { get; set; } = string.Empty;
        public string? MimeType         { get; set; }
        public long    FileSizeBytes    { get; set; }
        public bool    IsSystemGenerated { get; set; }
        public bool    AllowPreview     { get; set; }
        public bool    AllowDelete      { get; set; }
        public DateTime CreatedOn       { get; set; }
    }

    public class ESSDocumentPeriodGroupDTO
    {
        public string     PeriodLabel { get; set; } = string.Empty;
        public int?       Year        { get; set; }
        public int?       Month       { get; set; }
        public List<ESSDocumentItemDTO> Documents { get; set; } = new();
    }

    public class ESSDocumentGroupDTO
    {
        public string   CategoryCode  { get; set; } = string.Empty;
        public string   CategoryName  { get; set; } = string.Empty;
        public int      DocumentCount { get; set; }
        public List<ESSDocumentPeriodGroupDTO> Periods { get; set; } = new();
    }
}