using BackOffice.BFF.Application.Common.Interfaces;
using MediatR;
using Microsoft.Extensions.Logging;
using BffPackage = BackOffice.BFF.Package.Protobuf.Protos.Package;
using CmsPackage = CMSMicroservice.Protobuf.Protos.Package;

namespace BackOffice.BFF.Application.PackageCQ.Queries.GetUserPackageStatus;

public class GetUserPackageStatusQueryHandler : IRequestHandler<GetUserPackageStatusQuery, BffPackage.GetUserPackageStatusResponse>
{
    private readonly IApplicationContractContext _context;
    private readonly ILogger<GetUserPackageStatusQueryHandler> _logger;

    public GetUserPackageStatusQueryHandler(
        IApplicationContractContext context,
        ILogger<GetUserPackageStatusQueryHandler> logger)
    {
        _context = context;
        _logger = logger;
    }

    public async Task<BffPackage.GetUserPackageStatusResponse> Handle(GetUserPackageStatusQuery request, CancellationToken cancellationToken)
    {
        var grpcRequest = new CmsPackage.GetUserPackageStatusRequest
        {
            UserId = request.UserId
        };

        var response = await _context.Packages.GetUserPackageStatusAsync(grpcRequest, cancellationToken: cancellationToken);

        _logger.LogInformation("Retrieved package status for user {UserId}", request.UserId);

        var result = new BffPackage.GetUserPackageStatusResponse
        {
            UserId = response.UserId,
            PackagePurchaseMethod = response.PackagePurchaseMethod,
            HasPurchasedPackage = response.HasPurchasedPackage,
            IsClubMemberActive = response.IsClubMemberActive,
            WalletBalance = response.WalletBalance,
            DiscountBalance = response.DiscountBalance,
            CanActivateClubMembership = response.CanActivateClubMembership
        };

        if (response.LastOrderNumber != null)
        {
            result.LastOrderNumber = response.LastOrderNumber;
        }

        if (response.LastPurchaseDate != null)
        {
            result.LastPurchaseDate = response.LastPurchaseDate;
        }

        return result;
    }
}