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path: root/MediaBrowser.Providers/TV/EpisodeMetadataService.cs
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using System;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Entities.TV;
using MediaBrowser.Controller.IO;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.MediaSegments;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.IO;
using MediaBrowser.Providers.Manager;
using Microsoft.Extensions.Logging;

namespace MediaBrowser.Providers.TV;

/// <summary>
/// Service to manage episode metadata.
/// </summary>
public class EpisodeMetadataService : MetadataService<Episode, EpisodeInfo>
{
    /// <summary>
    /// Initializes a new instance of the <see cref="EpisodeMetadataService"/> class.
    /// </summary>
    /// <param name="serverConfigurationManager">Instance of the <see cref="IServerConfigurationManager"/>.</param>
    /// <param name="logger">Instance of the <see cref="ILogger"/> interface.</param>
    /// <param name="providerManager">Instance of the <see cref="IProviderManager"/> interface.</param>
    /// <param name="fileSystem">Instance of the <see cref="IFileSystem"/> interface.</param>
    /// <param name="libraryManager">Instance of the <see cref="ILibraryManager"/> interface.</param>
    /// <param name="pathManager">Instance of the <see cref="IPathManager"/> interface.</param>
    /// <param name="keyframeManager">Instance of the <see cref="IKeyframeManager"/> interface.</param>
    /// <param name="mediaSegmentManager">Instance of the <see cref="IMediaSegmentManager"/> interface.</param>
    public EpisodeMetadataService(
        IServerConfigurationManager serverConfigurationManager,
        ILogger<EpisodeMetadataService> logger,
        IProviderManager providerManager,
        IFileSystem fileSystem,
        ILibraryManager libraryManager,
        IPathManager pathManager,
        IKeyframeManager keyframeManager,
        IMediaSegmentManager mediaSegmentManager)
        : base(serverConfigurationManager, logger, providerManager, fileSystem, libraryManager, pathManager, keyframeManager, mediaSegmentManager)
    {
    }

    /// <inheritdoc />
    protected override ItemUpdateType BeforeSaveInternal(Episode item, bool isFullRefresh, ItemUpdateType updateType)
    {
        var updatedType = base.BeforeSaveInternal(item, isFullRefresh, updateType);

        var seriesName = item.FindSeriesName();
        if (!string.Equals(item.SeriesName, seriesName, StringComparison.Ordinal))
        {
            item.SeriesName = seriesName;
            updatedType |= ItemUpdateType.MetadataImport;
        }

        var seasonName = item.FindSeasonName();
        if (!string.Equals(item.SeasonName, seasonName, StringComparison.Ordinal))
        {
            item.SeasonName = seasonName;
            updatedType |= ItemUpdateType.MetadataImport;
        }

        var seriesId = item.FindSeriesId();
        if (!item.SeriesId.Equals(seriesId))
        {
            item.SeriesId = seriesId;
            updatedType |= ItemUpdateType.MetadataImport;
        }

        var seasonId = item.FindSeasonId();
        if (!item.SeasonId.Equals(seasonId))
        {
            item.SeasonId = seasonId;
            updatedType |= ItemUpdateType.MetadataImport;
        }

        var seriesPresentationUniqueKey = item.FindSeriesPresentationUniqueKey();
        if (!string.Equals(item.SeriesPresentationUniqueKey, seriesPresentationUniqueKey, StringComparison.Ordinal))
        {
            item.SeriesPresentationUniqueKey = seriesPresentationUniqueKey;
            updatedType |= ItemUpdateType.MetadataImport;
        }

        return updatedType;
    }

    /// <inheritdoc />
    protected override void MergeData(MetadataResult<Episode> source, MetadataResult<Episode> target, MetadataField[] lockedFields, bool replaceData, bool mergeMetadataSettings)
    {
        base.MergeData(source, target, lockedFields, replaceData, mergeMetadataSettings);

        var sourceItem = source.Item;
        var targetItem = target.Item;

        if (replaceData || !targetItem.AirsBeforeSeasonNumber.HasValue)
        {
            targetItem.AirsBeforeSeasonNumber = sourceItem.AirsBeforeSeasonNumber;
        }

        if (replaceData || !targetItem.AirsAfterSeasonNumber.HasValue)
        {
            targetItem.AirsAfterSeasonNumber = sourceItem.AirsAfterSeasonNumber;
        }

        if (replaceData || !targetItem.AirsBeforeEpisodeNumber.HasValue)
        {
            targetItem.AirsBeforeEpisodeNumber = sourceItem.AirsBeforeEpisodeNumber;
        }

        if (replaceData || !targetItem.IndexNumberEnd.HasValue)
        {
            targetItem.IndexNumberEnd = sourceItem.IndexNumberEnd;
        }
    }
}