56 lines
1.9 KiB
C#
56 lines
1.9 KiB
C#
using FictionArchive.Service.Shared.MassTransit.Contracts.Events;
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using FictionArchive.Service.UserNovelDataService.Models.Database;
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using MassTransit;
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using Microsoft.EntityFrameworkCore;
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namespace FictionArchive.Service.UserNovelDataService.Services.EventHandlers;
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public class ChapterCreatedEventConsumer : IConsumer<ChapterCreatedEvent>
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{
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private readonly UserNovelDataServiceDbContext _dbContext;
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private readonly ILogger<ChapterCreatedEventConsumer> _logger;
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public ChapterCreatedEventConsumer(
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UserNovelDataServiceDbContext dbContext,
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ILogger<ChapterCreatedEventConsumer> logger)
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{
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_dbContext = dbContext;
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_logger = logger;
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}
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public async Task Consume(ConsumeContext<ChapterCreatedEvent> context)
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{
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var @event = context.Message;
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// Ensure novel exists
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var novelExists = await _dbContext.Novels.AnyAsync(n => n.Id == @event.NovelId);
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if (!novelExists)
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{
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var novel = new Novel { Id = @event.NovelId };
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_dbContext.Novels.Add(novel);
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}
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// Ensure volume exists
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var volumeExists = await _dbContext.Volumes.AnyAsync(v => v.Id == @event.VolumeId);
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if (!volumeExists)
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{
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var volume = new Volume { Id = @event.VolumeId };
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_dbContext.Volumes.Add(volume);
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}
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// Create chapter if not exists
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var chapterExists = await _dbContext.Chapters.AnyAsync(c => c.Id == @event.ChapterId);
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if (chapterExists)
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{
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_logger.LogDebug("Chapter {ChapterId} already exists, skipping", @event.ChapterId);
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return;
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}
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var chapter = new Chapter { Id = @event.ChapterId };
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_dbContext.Chapters.Add(chapter);
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await _dbContext.SaveChangesAsync();
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_logger.LogInformation("Created chapter stub for {ChapterId} in novel {NovelId}", @event.ChapterId, @event.NovelId);
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}
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}
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