using SeaHaven.DataServices.Models;

namespace SeaHaven.DataServices.Interfaces
{
    public interface IVendorCompanyRosterDataService
    {
        // SH-278: true only for an existing, non-archived Area in the catalogue.
        Task<bool> IsActiveAreaAsync(int areaId, CancellationToken cancellationToken);

        // Loads the company roster from either a vendor row id and/or a company id,
        // returning the company plus all non-deleted technician rows.
        Task<VendorCompanyRosterReadModel?> GetRosterAsync(
            int? vendorId,
            int? companyId,
            CancellationToken cancellationToken);

        // Reconciles the company roster (add/update/soft-delete/rename) and updates the
        // company Notes in a single SaveChangesAsync. A technician omitted from the
        // snapshot is soft-deleted only when it has no open linked work orders; otherwise
        // the whole save fails (VendorRosterConflictException) and nothing is persisted.
        Task<VendorCompanyRosterReadModel> SaveRosterAsync(
            VendorCompanyRosterWriteModel roster,
            CancellationToken cancellationToken);

        // Creates a new company together with its initial technicians (which may be zero)
        // in a single SaveChangesAsync.
        Task<VendorCompanyRosterReadModel> CreateRosterAsync(
            VendorCompanyRosterWriteModel roster,
            CancellationToken cancellationToken);

        // Additive update (SH-250): inserts the submitted technicians and applies only
        // the company fields present in CompanyFields (null = unchanged). Technicians
        // absent from the payload are never removed, soft-deleted or deactivated, so no
        // open-work-order check is needed. Persists in a single SaveChangesAsync.
        Task<VendorCompanyRosterReadModel> AddTechniciansAsync(
            VendorCompanyRosterAddWriteModel roster,
            CancellationToken cancellationToken);
    }
}