namespace ECPDAL.Meeting.DTOs;

/// <summary>
/// A single meeting row in TMEETING — minimal scheduling only (start/end, virtual link,
/// location, type, optional polymorphic business-object link). Per the plan's explicit scope
/// decision this module does not integrate a calendar engine, a video-conferencing provider, or a
/// reminder engine. Meeting minutes/discussion flow through Communication's TCOMMENTTHREAD and
/// meeting-generated action items are FBCK ActionItem rows — both reached only via the shared
/// MENTITY-registry convention (Communication) / a reusable int PK (FBCK ActionItem.ContextId),
/// never via a direct project/code reference to ECPDAL.Communication/BLL or FBCKDAL/BLL.
/// </summary>
public class MeetingDTO
{
    public int      MeetingId          { get; set; }
    public string   Title              { get; set; } = string.Empty;
    public int      MeetingTypeId      { get; set; } = -1;   // -> MGCM/MGCMTYPE
    public DateTime StartOn            { get; set; }
    public DateTime EndOn              { get; set; }
    public string?  VirtualLink        { get; set; }
    public string?  Location           { get; set; }
    public int      OrganizerUserId    { get; set; }
    public string?  OrganizerUserCode  { get; set; }
    public string?  OrganizerUserName  { get; set; }
    public byte     Status             { get; set; } = 1;   // 1=scheduled 2=completed 3=cancelled
    public int      ObjectTypeId       { get; set; } = -1;  // optional polymorphic business-object link
    public int      ObjectId           { get; set; } = -1;
    public int      OuId               { get; set; } = -1;
    public int      TenantId           { get; set; } = -1;
    public string   DatabaseName       { get; set; } = string.Empty;
    public byte     DatabaseType       { get; set; }
    public short    Version            { get; set; }
    public int      CreatedById        { get; set; } = -1;
    public DateTime CreatedOn          { get; set; }
    public int      ModifiedById       { get; set; } = -1;
    public DateTime ModifiedOn         { get; set; }

    /// <summary>Populated in-memory by MeetingBLL when assembling a detail view — never read
    /// from TMEETING directly.</summary>
    public List<MeetingParticipantDTO> Participants { get; set; } = [];
}

/// <summary>Input shape for SaveMeeting — a smaller surface than the full read DTO.</summary>
public class SaveMeetingDTO
{
    public int      MeetingId     { get; set; }
    public string   Title         { get; set; } = string.Empty;
    public int      MeetingTypeId { get; set; } = -1;
    public DateTime StartOn       { get; set; }
    public DateTime EndOn         { get; set; }
    public string?  VirtualLink   { get; set; }
    public string?  Location      { get; set; }
    public int      ObjectTypeId  { get; set; } = -1;
    public int      ObjectId      { get; set; } = -1;
    public int      OuId          { get; set; } = -1;
}

public class UpdateMeetingStatusDTO
{
    public int  MeetingId { get; set; }
    public byte NewStatus { get; set; }   // 1=scheduled 2=completed 3=cancelled
}

/// <summary>A single participant row in TMEETINGPARTICIPANT.</summary>
public class MeetingParticipantDTO
{
    public int      MeetingParticipantId { get; set; }
    public int      MeetingId            { get; set; }
    public int      UserId               { get; set; }
    public string?  UserCode             { get; set; }
    public string?  UserName             { get; set; }
    public byte     AttendanceStatus     { get; set; } = 1;   // 1=invited 2=accepted 3=declined 4=attended 5=no-show
    public int      TenantId             { get; set; } = -1;
    public string   DatabaseName         { get; set; } = string.Empty;
    public byte     DatabaseType         { get; set; }
    public byte     Status               { get; set; } = 1;   // 1=Active 2=Deleted
    public int      CreatedById          { get; set; } = -1;
    public DateTime CreatedOn            { get; set; }
    public int      ModifiedById         { get; set; } = -1;
    public DateTime ModifiedOn           { get; set; }
}

public class AddMeetingParticipantDTO
{
    public int MeetingId { get; set; }
    public int UserId    { get; set; }
}

public class UpdateParticipantAttendanceDTO
{
    public int  MeetingId        { get; set; }
    public int  UserId           { get; set; }
    public byte AttendanceStatus { get; set; }
}

/// <summary>Dropdown-picker row for GetSelectListMeeting — the MGCM/GCMTYPEID "Meeting Type"
/// classification (Planning/Review/Standup/Retrospective in the ECP preview).</summary>
public class MeetingTypePicklistDTO
{
    public int    MeetingTypeId { get; set; }
    public string Code          { get; set; } = string.Empty;
    public string Name          { get; set; } = string.Empty;
}

/// <summary>Dropdown-picker row for GetSelectListMeetingDetails (the "invite participant"
/// picker) — users NOT already a participant of the given meeting.</summary>
public class MeetingParticipantPicklistDTO
{
    public int    UserId   { get; set; }
    public string UserCode { get; set; } = string.Empty;
    public string UserName { get; set; } = string.Empty;
}