using GB5Shared.DTO.Framework.Criteria;
using GB5Shared.DTO.Framework.Login;
using ECPDAL.Meeting.DTOs;

namespace ECPBLL.Meeting.Interfaces;

public interface IMeetingBLL
{
    Task<string> GetMeetingAsync(int meetingId, LoginDTO login, CancellationToken ct);

    /// <summary>Meeting-type dropdown (MGCM/GCMTYPEID) — Planning/Review/Standup/Retrospective.</summary>
    Task<string> GetSelectListMeetingAsync(LoginDTO login, CancellationToken ct);

    /// <summary>Generic filter list via CriteriaDTO — see IMeetingDAL.GetMeetingListAsync.</summary>
    Task<string> GetMeetingListAsync(CriteriaDTO? criteriaDTO, LoginDTO login, CancellationToken ct);

    /// <summary>Creates (MeetingId == 0) or updates (MeetingId > 0) a meeting. On create, the
    /// caller becomes the organizer and its first TMEETINGPARTICIPANT row (accepted, since the
    /// organizer is implicitly attending).</summary>
    Task<string> SaveMeetingAsync(SaveMeetingDTO dto, LoginDTO login, CancellationToken ct);

    Task<string> UpdateMeetingStatusAsync(UpdateMeetingStatusDTO dto, LoginDTO login, CancellationToken ct);

    /// <summary>Cancels the meeting (STATUS=3) — TMEETING has no separate row-level status
    /// column, so Delete cancels rather than hard-deletes.</summary>
    Task<string> DeleteMeetingAsync(int meetingId, LoginDTO login, CancellationToken ct);

    Task<string> AddMeetingParticipantAsync(AddMeetingParticipantDTO dto, LoginDTO login, CancellationToken ct);
    Task<string> UpdateParticipantAttendanceAsync(UpdateParticipantAttendanceDTO dto, LoginDTO login, CancellationToken ct);

    /// <summary>Removes a participant — mirrors CollaborationSpaceMember's remove semantics
    /// (the organizer cannot be removed; must cancel the meeting instead).</summary>
    Task<string> RemoveMeetingParticipantAsync(int meetingId, int userId, LoginDTO login, CancellationToken ct);

    /// <summary>A single participant row — the Details tab's own Get, separate from the
    /// meeting-detail view's embedded Participants list.</summary>
    Task<string> GetMeetingDetailsAsync(int meetingId, int userId, LoginDTO login, CancellationToken ct);

    /// <summary>All active participants of a meeting, as its own standalone list endpoint — for
    /// the Details tab's folder.</summary>
    Task<string> GetMeetingDetailsListAsync(int meetingId, LoginDTO login, CancellationToken ct);

    /// <summary>"Invite participant" picker — active users not already a participant.</summary>
    Task<string> GetSelectListMeetingDetailsAsync(int meetingId, LoginDTO login, CancellationToken ct);
}