using GB5Shared.DTO.Framework.Login;
using GB5Shared.Telemetry;
using Microsoft.Extensions.Logging;
using RecruitmentDAL.DTO.BgVerification;
using System.Threading;
using System.Threading.Tasks;

namespace RecruitmentBLL.Integration
{
    // No-op/logging placeholder for the vendor-API side of BG verification (Education/
    // Employment/Criminal) — see IBgVerificationVendorService's doc comment for the full
    // rationale (why this is a GOP Target Operation extension point, not bespoke vendor code,
    // and what a real implementation would do). Degrades exactly like every other Recruitment
    // integration service in this folder (EcpIntegrationService/OkrIntegrationService/
    // DxpAuthIntegrationService) — never throws back into BgVerificationBLL.
    public class BgVerificationVendorIntegrationService : IBgVerificationVendorService
    {
        private readonly ILogger<BgVerificationVendorIntegrationService> _Logger;

        public BgVerificationVendorIntegrationService(ILogger<BgVerificationVendorIntegrationService> logger)
        {
            _Logger = logger;
        }

        public Task<BgVendorCallOutcome> InitiateVendorCheckAsync(BgVerificationDTO bgVerification, LoginDTO login, CancellationToken ct)
        {
            GB5Trace.Step("bg-verification-vendor-check-placeholder", new
            {
                bgVerification.BgVerificationId,
                bgVerification.ApplicationId,
                bgVerification.CheckType
            });

            // No real vendor is configured yet (per plan: "another GOP Target Operation rather
            // than bespoke per-vendor code" — no vendor chosen). Logging placeholder only: a real
            // implementation would POST to the vendor here (via IHttpClientFactory / a GOP
            // Target Operation / INodeExecutor) and return VendorReference = the vendor's case
            // id, completing asynchronously later via IBgVerificationBLL.UpdateCheckStatusAsync
            // (webhook or poll) rather than here.
            _Logger.LogInformation(
                "BG verification vendor check placeholder invoked for Application {ApplicationId}, CheckType {CheckType} — no vendor integration configured yet; check remains InProgress pending a real GOP Target Operation implementation.",
                bgVerification.ApplicationId, bgVerification.CheckType);

            return Task.FromResult(new BgVendorCallOutcome
            {
                Success = true,
                VendorReference = null
            });
        }
    }
}