using dy.net.model.dto;
using dy.net.model.entity;
using dy.net.utils;
using Newtonsoft.Json;

namespace dy.net.storage
{
    public static class StorageArtifactCleaner
    {
        public static async Task DeleteWebDavArtifactsAsync(
            IMediaStorage storage,
            DouyinVideo video,
            CancellationToken cancellationToken = default)
        {
            if (storage == null || video == null || !video.StorageType.IsRemote()) return;

            var paths = new HashSet<string>(StringComparer.Ordinal)
            {
                video.VideoSavePath,
                video.VideoCoverSavePath
            };

            foreach (var nfoPath in NfoContentBuilder.Build(video).Keys)
            {
                // tvshow.nfo is shared by every episode in a mix/series directory.
                if (!Path.GetFileName(nfoPath).Equals("tvshow.nfo", StringComparison.OrdinalIgnoreCase))
                    paths.Add(nfoPath);
            }

            if (!string.IsNullOrWhiteSpace(video.DynamicVideos))
            {
                try
                {
                    var related = JsonConvert.DeserializeObject<List<DouyinMergeVideoDto>>(video.DynamicVideos);
                    foreach (var item in related ?? new List<DouyinMergeVideoDto>())
                    {
                        if (!string.IsNullOrWhiteSpace(item.Path)) paths.Add(item.Path);
                    }
                }
                catch (JsonException ex)
                {
                    Serilog.Log.Warning(ex, "解析远端附属文件清单失败：{VideoId}", video.AwemeId);
                }
            }

            foreach (var path in paths.Where(x => !string.IsNullOrWhiteSpace(x)))
            {
                try
                {
                    if (StoragePath.NormalizeRemote(path) != "/")
                        await storage.DeleteAsync(path, cancellationToken);
                }
                catch (Exception ex)
                {
                    Serilog.Log.Warning(ex, "清理远端媒体文件失败：{Path}", path);
                }
            }
        }
    }
}