using GB5Shared.DTO.Framework.Login;
using GB5Shared.QueueReader;
using GB5Shared.Telemetry;
using GoodBooks.PAY.PAYBLL.Loyalty;
using Microsoft.Extensions.Logging;

namespace GoodBooks.PAY.PAYSL.Services.Handlers;

// Processes a LOYALTY queue message by expiring all loyalty points that have lapsed for the tenant.
// Message payload is ignored — the BLL fetches all expired points from TLOYALTYLEDGER.
public sealed class LoyaltyExpiryQueueHandler : IJobQueueHandler
{
    public string MessageType => "LOYALTY";

    private readonly ICustomerLoyaltyBLL               _bll;
    private readonly ILogger<LoyaltyExpiryQueueHandler> _logger;

    public LoyaltyExpiryQueueHandler(ICustomerLoyaltyBLL bll, ILogger<LoyaltyExpiryQueueHandler> logger)
    {
        _bll    = bll;
        _logger = logger;
    }

    public async Task HandleAsync(string payload, LoginDTO login, long queueId, CancellationToken ct)
    {
        GB5Trace.Step("loyalty-expiry-queue-process", new { TenantId = login.ClientId });
        _logger.LogInformation("LoyaltyExpiryQueueHandler: expiring lapsed points for tenant {TenantId}", login.ClientId);

        await _bll.ExpirePointsAsync(login, ct).ConfigureAwait(false);
    }
}