Files
FictionArchive/FictionArchive.Service.UserNovelDataService/Services/EventHandlers/NovelCreatedEventHandler.cs

37 lines
1.2 KiB
C#

using FictionArchive.Service.Shared.Services.EventBus;
using FictionArchive.Service.UserNovelDataService.Models.Database;
using FictionArchive.Service.UserNovelDataService.Models.IntegrationEvents;
using Microsoft.EntityFrameworkCore;
namespace FictionArchive.Service.UserNovelDataService.Services.EventHandlers;
public class NovelCreatedEventHandler : IIntegrationEventHandler<NovelCreatedEvent>
{
private readonly UserNovelDataServiceDbContext _dbContext;
private readonly ILogger<NovelCreatedEventHandler> _logger;
public NovelCreatedEventHandler(
UserNovelDataServiceDbContext dbContext,
ILogger<NovelCreatedEventHandler> logger)
{
_dbContext = dbContext;
_logger = logger;
}
public async Task Handle(NovelCreatedEvent @event)
{
var exists = await _dbContext.Novels.AnyAsync(n => n.Id == @event.NovelId);
if (exists)
{
_logger.LogDebug("Novel {NovelId} already exists, skipping", @event.NovelId);
return;
}
var novel = new Novel { Id = @event.NovelId };
_dbContext.Novels.Add(novel);
await _dbContext.SaveChangesAsync();
_logger.LogInformation("Created novel stub for {NovelId}", @event.NovelId);
}
}