using BackOffice.BFF.Application.Common.Interfaces;
using BackOffice.BFF.ManualPayment.Protobuf;
using Google.Protobuf.WellKnownTypes;
using MediatR;
using Microsoft.Extensions.Logging;

namespace BackOffice.BFF.Application.ManualPaymentCQ.Commands.CreateManualPayment;

public class CreateManualPaymentCommandHandler : IRequestHandler<CreateManualPaymentCommand, CreateManualPaymentResponseDto>
{
    private readonly IApplicationContractContext _context;
    private readonly ILogger<CreateManualPaymentCommandHandler> _logger;

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

    public async Task<CreateManualPaymentResponseDto> Handle(CreateManualPaymentCommand request, CancellationToken cancellationToken)
    {
        _logger.LogInformation(
            "Creating manual payment via BFF for UserId {UserId}, Amount {Amount}, Type {Type}",
            request.UserId,
            request.Amount,
            request.Type);

        var grpcRequest = new CreateManualPaymentRequest
        {
            UserId = request.UserId,
            Amount = request.Amount,
            Type = request.Type,
            Description = request.Description
        };

        if (!string.IsNullOrWhiteSpace(request.ReferenceNumber))
        {
            grpcRequest.ReferenceNumber = request.ReferenceNumber;
        }

        var response = await _context.ManualPayments.CreateManualPaymentAsync(grpcRequest, cancellationToken: cancellationToken);

        return new CreateManualPaymentResponseDto
        {
            Id = response.Id
        };
    }
}