namespace Fitness_core_BE.Models.IOs
{
    public record PagedResult<T>(List<T> Items, int Total, int Page, int PageSize);      //commonly tabel use

    // Shared OTP-send response shape -- used by the client's own contact-detail-change OTP flow
    // (ClientService.SendContactOtp via AuthOtpResponseParser), not onboarding-specific despite
    // originally living in that file.
    public record SendOtpResult(string ReferenceNumber, int ExpiresInSeconds, int ResendAllowedInSeconds);

    // ---------- Admin: client directory ----------
    public record ClientSummary(Guid ClientId, string? ClientName, string? City, string? PaymentTrack, bool IsActive, DateTime CreatedAt);
    public record ClientDirectoryQuery(string? Search, int Page = 1, int PageSize = 20);

    // ---------- Admin: access-device pairing & status ----------
    public record PairingCodeResult(string Code, DateTime ExpiresAt);

    // IsOnline is inferred from the client's on-prem bridge agent's last heartbeat — the cloud
    // never talks to a device directly. AccessDevice isn't tied to a specific agent, so every
    // device under a client shares the same IsOnline signal (see AdminClientDirectoryService).
    public record AdminAgentDto(Guid AgentId, string Name, bool IsActive, DateTime? LastSeenAt, bool IsOnline, DateTime CreatedAt);
    public record AdminDeviceDto(
        Guid DeviceId,
        string DeviceName,
        bool IsActive,
        DateTime? LastSeenAt,
        bool IsOnline,
        DateTime? PresenceExpiresAt,
        bool IsClaimed,
        DateTime CreatedAt);
    public record AdminClientDevicesResult(List<AdminAgentDto> Agents, List<AdminDeviceDto> Devices);

    // ---------- Client's own customers / staff ----------
    public record CreateCustomerWithPlansRequest(
        string Fullname, string UserName, string Email, string MobileNumber, string? Nic, string Gender, string? Birthday,
        List<Guid>? WorkoutPlanIds, List<Guid>? MealPlanIds, Guid? CustomerPlanId,
        DateTime? OnboardDate, bool ChargePayment = true,
        // Set true only on the resubmit after staff has confirmed "yes, link this existing
        // platform customer to my gym" -- see ClientService.CreateCustomerWithPlans.
        bool ConfirmLink = false,
        string? DiscountType = null, decimal? DiscountValue = null);

    // MobileNumber (not PhoneNumber) -- must match the frontend's MemberInput.mobileNumber
    // JSON key, same convention CreateCustomerWithPlansRequest above already uses. A prior
    // mismatch here (PhoneNumber) silently bound to null on every edit, since ASP.NET Core's
    // JSON binder does not fuzzy-match differently-named keys -- every customer phone edit was
    // wiping the number instead of changing it.
    public record UpdateCustomerByClientRequest(
        string Fullname, string UserName, string Email, string? Nic, string? Gender, string? Birthday,
        string? MobileNumber);

    // "Parent" path: starts a brand new subscription for a customer who was created without
    // a plan, with them as the primary member.
    public record AssignCustomerPlanRequest(
        Guid CustomerPlanId, DateTime? ExpiryDate, DateTime? OnboardDate, bool ChargePayment = true,
        string? DiscountType = null, decimal? DiscountValue = null);

    // Switches an existing Individual-scope subscription to a different Individual-scope plan.
    public record ChangeMembershipPlanRequest(Guid CustomerPlanId);

    // ---------- Client's own gym profile (post-activation) ----------
    public record EquipmentCountDto(string Name, int Count);
    public record UpdateGymProfileRequest(
        string? BusinessName, string? Address, string? City, string? Description,
        bool? HasAc, List<EquipmentCountDto>? Equipment);

    // ---------- Gym-specific Terms & Conditions authoring ----------
    public record PublishGymTermsRequest(string Content);

    // ---------- Client's own contact detail change (OTP-verified) ----------
    public record SendContactOtpRequest(string Type, string Identifier);
    public record VerifyContactOtpRequest(string Type, string Identifier, string ReferenceNumber, string OtpCode);

    // ---------- Member medical details unlock ----------
    public record MedicalUnlockRequest(string Password);

    // GymRoleId optional -- must belong to the caller's own client (validated in StaffService).
    // Left null, the new staff member has no dashboard access until a role is assigned later.
    public record CreateStaffRequest(string UserName, string Email, string PhoneNumber, string? StaffPosition, string? Department, DateTime? HireDate, Guid? GymRoleId = null);
    public record UpdateStaffRequest(string? UserName, string? Email, string? PhoneNumber, string? StaffPosition, string? Department);
}