✨ Spotify OAuth & Presence
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209
DysonNetwork.Pass/Account/Presences/SpotifyPresenceService.cs
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209
DysonNetwork.Pass/Account/Presences/SpotifyPresenceService.cs
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using System.Text.Json;
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using DysonNetwork.Shared.Models;
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using Microsoft.EntityFrameworkCore;
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using NodaTime;
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namespace DysonNetwork.Pass.Account.Presences;
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public class SpotifyPresenceService(
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AppDatabase db,
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Auth.OpenId.SpotifyOidcService spotifyService,
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AccountEventService accountEventService,
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ILogger<SpotifyPresenceService> logger
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)
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{
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/// <summary>
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/// Updates presence activities for users who have Spotify connections and are currently playing music
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/// </summary>
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public async Task UpdateAllSpotifyPresencesAsync()
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{
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var userConnections = await db.AccountConnections
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.Where(c => c.Provider == "spotify" && c.AccessToken != null && c.RefreshToken != null)
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.Include(c => c.Account)
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.ToListAsync();
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foreach (var connection in userConnections)
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{
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await UpdateSpotifyPresenceAsync(connection.Account);
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}
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}
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/// <summary>
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/// Updates the Spotify presence activity for a specific user
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/// </summary>
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public async Task UpdateSpotifyPresenceAsync(SnAccount account)
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{
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var connection = await db.AccountConnections
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.FirstOrDefaultAsync(c => c.AccountId == account.Id && c.Provider == "spotify");
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if (connection?.RefreshToken == null)
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{
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// No Spotify connection, remove any existing Spotify presence
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await RemoveSpotifyPresenceAsync(account.Id);
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return;
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}
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try
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{
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var currentlyPlayingJson = await spotifyService.GetCurrentlyPlayingAsync(
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connection.RefreshToken,
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connection.AccessToken
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);
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if (string.IsNullOrEmpty(currentlyPlayingJson) || currentlyPlayingJson == "{}")
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{
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// Nothing playing, remove the presence
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await RemoveSpotifyPresenceAsync(account.Id);
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return;
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}
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var presenceActivity = await ParseAndCreatePresenceActivityAsync(account.Id, currentlyPlayingJson);
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// Update or create the presence activity
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await accountEventService.UpdateActivityByManualId(
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"spotify",
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account.Id,
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activity =>
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{
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activity.Type = PresenceType.Music;
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activity.Title = presenceActivity.Title;
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activity.Subtitle = presenceActivity.Subtitle;
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activity.Caption = presenceActivity.Caption;
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activity.LargeImage = presenceActivity.LargeImage;
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activity.SmallImage = presenceActivity.SmallImage;
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activity.TitleUrl = presenceActivity.TitleUrl;
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activity.SubtitleUrl = presenceActivity.SubtitleUrl;
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activity.Meta = presenceActivity.Meta;
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},
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10 // 10 minute lease
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);
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}
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catch (Exception ex)
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{
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// On error, remove the presence to avoid stale data
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await RemoveSpotifyPresenceAsync(account.Id);
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// In a real implementation, you might want to log the error
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logger.LogError(ex, "Failed to update Spotify presence for user {UserId}", account.Id);
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}
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}
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/// <summary>
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/// Removes the Spotify presence activity for a user
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/// </summary>
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private async Task RemoveSpotifyPresenceAsync(Guid accountId)
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{
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await accountEventService.UpdateActivityByManualId(
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"spotify",
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accountId,
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activity =>
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{
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// Mark it for immediate expiration
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activity.LeaseExpiresAt = SystemClock.Instance.GetCurrentInstant();
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}
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);
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}
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private async Task<SnPresenceActivity> ParseAndCreatePresenceActivityAsync(Guid accountId, string currentlyPlayingJson)
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{
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var document = JsonDocument.Parse(currentlyPlayingJson);
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var root = document.RootElement;
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// Extract track information
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var item = root.GetProperty("item");
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var trackName = item.GetProperty("name").GetString() ?? "";
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var isPlaying = root.GetProperty("is_playing").GetBoolean();
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// Only create presence if actually playing
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if (!isPlaying)
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{
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throw new InvalidOperationException("Track is not currently playing");
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}
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// Get artists
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var artists = item.GetProperty("artists");
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var artistNames = artists.EnumerateArray()
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.Select(a => a.GetProperty("name").GetString() ?? "")
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.Where(name => !string.IsNullOrEmpty(name))
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.ToArray();
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var artistsString = string.Join(", ", artistNames);
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// Get album
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var album = item.GetProperty("album");
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var albumName = album.GetProperty("name").GetString() ?? "";
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// Get album images (artwork)
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string? albumImageUrl = null;
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if (album.TryGetProperty("images", out var images) && images.ValueKind == JsonValueKind.Array)
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{
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var albumImages = images.EnumerateArray().ToList();
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// Take the largest image (usually last in the array)
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if (albumImages.Count > 0)
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{
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albumImageUrl = albumImages[0].GetProperty("url").GetString();
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}
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}
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// Get external URLs
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var externalUrls = item.GetProperty("external_urls");
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var trackUrl = externalUrls.GetProperty("spotify").GetString();
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var artistsUrls = new List<string>();
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foreach (var artist in artists.EnumerateArray())
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{
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if (artist.TryGetProperty("external_urls", out var artistUrls))
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{
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var spotifyUrl = artistUrls.GetProperty("spotify").GetString();
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if (!string.IsNullOrEmpty(spotifyUrl))
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{
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artistsUrls.Add(spotifyUrl);
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}
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}
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}
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// Get progress and duration for metadata
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var progressMs = root.GetProperty("progress_ms").GetInt32();
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var durationMs = item.GetProperty("duration_ms").GetInt32();
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// Calculate progress percentage
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var progressPercent = durationMs > 0 ? (double)progressMs / durationMs * 100 : 0;
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// Get context info (playlist, album, etc.)
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string? contextType = null;
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string? contextUrl = null;
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if (root.TryGetProperty("context", out var context))
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{
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contextType = context.GetProperty("type").GetString();
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var contextExternalUrls = context.GetProperty("external_urls");
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contextUrl = contextExternalUrls.GetProperty("spotify").GetString();
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}
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return new SnPresenceActivity
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{
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AccountId = accountId,
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Type = PresenceType.Music,
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ManualId = "spotify",
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Title = trackName,
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Subtitle = artistsString,
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Caption = albumName,
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LargeImage = albumImageUrl,
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TitleUrl = trackUrl,
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SubtitleUrl = artistsUrls.FirstOrDefault(),
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Meta = new Dictionary<string, object>
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{
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["track_duration_ms"] = durationMs,
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["progress_ms"] = progressMs,
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["progress_percent"] = progressPercent,
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["track_id"] = item.GetProperty("id").GetString() ?? "",
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["album_id"] = album.GetProperty("id").GetString() ?? "",
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["artist_ids"] = artists.EnumerateArray().Select(a => a.GetProperty("id").GetString() ?? "").ToArray(),
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["context_type"] = contextType,
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["context_url"] = contextUrl,
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["is_explicit"] = item.GetProperty("explicit").GetBoolean(),
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["popularity"] = item.GetProperty("popularity").GetInt32(),
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["spotify_track_url"] = trackUrl,
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["updated_at"] = SystemClock.Instance.GetCurrentInstant()
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}
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};
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}
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}
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