using FictionArchive.Service.NovelService.Models.IntegrationEvents;
using FictionArchive.Service.NovelService.Models.Localization;
using FictionArchive.Service.Shared.Services.EventBus;
using Microsoft.EntityFrameworkCore;

namespace FictionArchive.Service.NovelService.Services.EventHandlers;

public class TranslationRequestCompletedEventHandler : IIntegrationEventHandler<TranslationRequestCompletedEvent>
{
    private readonly ILogger<TranslationRequestCompletedEventHandler> _logger;
    private readonly NovelServiceDbContext _dbContext;

    public TranslationRequestCompletedEventHandler(ILogger<TranslationRequestCompletedEventHandler> logger, NovelServiceDbContext dbContext)
    {
        _logger = logger;
        _dbContext = dbContext;
    }

    public async Task Handle(TranslationRequestCompletedEvent @event)
    {
        var localizationRequest = await _dbContext.LocalizationRequests.Include(r => r.KeyRequestedForTranslation)
            .ThenInclude(lk => lk.Texts)
            .FirstOrDefaultAsync(lk => lk.Id == @event.TranslationRequestId);
        if (localizationRequest == null)
        {
            // Not one of our requests, discard it
            return;
        }
        
        localizationRequest.KeyRequestedForTranslation.Texts.Add(new LocalizationText()
        {
            Language = localizationRequest.TranslateTo,
            Text = @event.TranslatedText,
            TranslationEngine = localizationRequest.Engine
        });
        _dbContext.LocalizationRequests.Remove(localizationRequest);
        await _dbContext.SaveChangesAsync();
    }
}