Kavita/API/Services/Plus/RatingService.cs
2024-01-17 15:45:39 -08:00

102 lines
3.6 KiB
C#

using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Linq;
using System.Threading.Tasks;
using API.Constants;
using API.Data;
using API.Data.Repositories;
using API.DTOs;
using API.Entities;
using API.Entities.Enums;
using API.Helpers;
using API.Helpers.Builders;
using EasyCaching.Core;
using Flurl.Http;
using Kavita.Common;
using Kavita.Common.EnvironmentInfo;
using Kavita.Common.Helpers;
using Microsoft.Extensions.Logging;
namespace API.Services.Plus;
#nullable enable
public interface IRatingService
{
Task<IEnumerable<RatingDto>> GetRatings(int seriesId);
}
public class RatingService : IRatingService
{
private readonly IUnitOfWork _unitOfWork;
private readonly ILogger<RatingService> _logger;
private readonly IEasyCachingProvider _cacheProvider;
public const string CacheKey = "rating_";
public RatingService(IUnitOfWork unitOfWork, ILogger<RatingService> logger, IEasyCachingProviderFactory cachingProviderFactory)
{
_unitOfWork = unitOfWork;
_logger = logger;
FlurlHttp.ConfigureClient(Configuration.KavitaPlusApiUrl, cli =>
cli.Settings.HttpClientFactory = new UntrustedCertClientFactory());
_cacheProvider = cachingProviderFactory.GetCachingProvider(EasyCacheProfiles.KavitaPlusRatings);
}
/// <summary>
/// Fetches Ratings for a given Series. Will check cache first
/// </summary>
/// <param name="seriesId"></param>
/// <returns></returns>
public async Task<IEnumerable<RatingDto>> GetRatings(int seriesId)
{
var cacheKey = CacheKey + seriesId;
var results = await _cacheProvider.GetAsync<IEnumerable<RatingDto>>(cacheKey);
if (results.HasValue)
{
return results.Value;
}
var license = await _unitOfWork.SettingsRepository.GetSettingAsync(ServerSettingKey.LicenseKey);
var series = await _unitOfWork.SeriesRepository.GetSeriesByIdAsync(seriesId,
SeriesIncludes.Metadata | SeriesIncludes.Library | SeriesIncludes.Chapters | SeriesIncludes.Volumes);
// Don't send any ratings back for Comic libraries as Kavita+ doesn't have any providers for that
if (series == null || series.Library.Type == LibraryType.Comic)
{
await _cacheProvider.SetAsync(cacheKey, ImmutableList<RatingDto>.Empty, TimeSpan.FromHours(24));
return ImmutableList<RatingDto>.Empty;
}
var ratings = (await GetRatings(license.Value, series)).ToList();
await _cacheProvider.SetAsync(cacheKey, ratings, TimeSpan.FromHours(24));
_logger.LogDebug("Caching external rating for {Key}", cacheKey);
return ratings;
}
private async Task<IEnumerable<RatingDto>> GetRatings(string license, Series series)
{
try
{
return await (Configuration.KavitaPlusApiUrl + "/api/rating")
.WithHeader("Accept", "application/json")
.WithHeader("User-Agent", "Kavita")
.WithHeader("x-license-key", license)
.WithHeader("x-installId", HashUtil.ServerToken())
.WithHeader("x-kavita-version", BuildInfo.Version)
.WithHeader("Content-Type", "application/json")
.WithTimeout(TimeSpan.FromSeconds(Configuration.DefaultTimeOutSecs))
.PostJsonAsync(new PlusSeriesDtoBuilder(series).Build())
.ReceiveJson<IEnumerable<RatingDto>>();
}
catch (Exception e)
{
_logger.LogError(e, "An error happened during the request to Kavita+ API");
}
return new List<RatingDto>();
}
}