using BackOffice.BFF.Application.Common.Interfaces;
using Google.Protobuf.WellKnownTypes;
using MediatR;
using BffProto = BackOffice.BFF.PublicMessage.Protobuf;
using CmsProto = CMSMicroservice.Protobuf.Protos;

namespace BackOffice.BFF.Application.PublicMessageCQ.Commands.UpdatePublicMessage;

public class UpdatePublicMessageCommandHandler : IRequestHandler<BffProto.UpdatePublicMessageRequest, BffProto.UpdatePublicMessageRequest>
{
    private readonly IApplicationContractContext _context;

    public UpdatePublicMessageCommandHandler(IApplicationContractContext context)
    {
        _context = context;
    }

    public async Task<BffProto.UpdatePublicMessageRequest> Handle(BffProto.UpdatePublicMessageRequest request, CancellationToken cancellationToken)
    {
        var cmsRequest = new CmsProto.UpdatePublicMessageRequest
        {
            Id = request.MessageId,
            Title = request.Title,
            Content = request.Content,
            Type = request.MessageType,
            Priority = request.Priority,
            StartDate = Timestamp.FromDateTime(request.StartsAt.ToUniversalTime()),
            EndDate = Timestamp.FromDateTime(request.ExpiresAt.ToUniversalTime())
        };

        await _context.PublicMessages.UpdatePublicMessageAsync(
            cmsRequest,
            cancellationToken: cancellationToken);

        // در حال حاضر پاسخ خاصی از CMS دریافت نمی‌کنیم؛ همان ورودی را برمی‌گردانیم
        return request;
    }
}