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osu-lazer/osu.Game/Online/UserStatisticsWatcher.cs

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// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System.Collections.Generic;
using System.Linq;
using osu.Framework.Allocation;
using osu.Framework.Bindables;
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using osu.Framework.Extensions.ObjectExtensions;
using osu.Framework.Graphics;
using osu.Game.Extensions;
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using osu.Game.Online.API;
using osu.Game.Online.API.Requests;
using osu.Game.Online.API.Requests.Responses;
using osu.Game.Online.Spectator;
using osu.Game.Scoring;
using osu.Game.Users;
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namespace osu.Game.Online
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{
/// <summary>
/// A persistent component that binds to the spectator server and API in order to deliver updates about the logged in user's gameplay statistics.
/// </summary>
public partial class UserStatisticsWatcher : Component
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{
public IBindable<UserStatisticsUpdate?> LatestUpdate => latestUpdate;
private readonly Bindable<UserStatisticsUpdate?> latestUpdate = new Bindable<UserStatisticsUpdate?>();
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[Resolved]
private SpectatorClient spectatorClient { get; set; } = null!;
[Resolved]
private IAPIProvider api { get; set; } = null!;
private readonly Dictionary<long, ScoreInfo> watchedScores = new Dictionary<long, ScoreInfo>();
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private Dictionary<string, UserStatistics>? latestStatistics;
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protected override void LoadComplete()
{
base.LoadComplete();
api.LocalUser.BindValueChanged(user => onUserChanged(user.NewValue), true);
spectatorClient.OnUserScoreProcessed += userScoreProcessed;
}
/// <summary>
/// Registers for a user statistics update after the given <paramref name="score"/> has been processed server-side.
/// </summary>
/// <param name="score">The score to listen for the statistics update for.</param>
public void RegisterForStatisticsUpdateAfter(ScoreInfo score)
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{
Schedule(() =>
{
if (!api.IsLoggedIn)
return;
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if (!score.Ruleset.IsLegacyRuleset() || score.OnlineID <= 0)
return;
watchedScores.Add(score.OnlineID, score);
});
}
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private void onUserChanged(APIUser? localUser) => Schedule(() =>
{
latestStatistics = null;
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if (localUser == null || localUser.OnlineID <= 1)
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return;
var userRequest = new GetUsersRequest(new[] { localUser.OnlineID });
userRequest.Success += initialiseUserStatistics;
api.Queue(userRequest);
});
private void initialiseUserStatistics(GetUsersResponse response) => Schedule(() =>
{
var user = response.Users.SingleOrDefault();
// possible if the user is restricted or similar.
if (user == null)
return;
latestStatistics = new Dictionary<string, UserStatistics>();
if (user.RulesetsStatistics != null)
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{
foreach (var rulesetStats in user.RulesetsStatistics)
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latestStatistics.Add(rulesetStats.Key, rulesetStats.Value);
}
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});
private void userScoreProcessed(int userId, long scoreId)
{
if (userId != api.LocalUser.Value?.OnlineID)
return;
if (!watchedScores.Remove(scoreId, out var scoreInfo))
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return;
requestStatisticsUpdate(userId, scoreInfo);
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}
private void requestStatisticsUpdate(int userId, ScoreInfo scoreInfo)
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{
var request = new GetUserRequest(userId, scoreInfo.Ruleset);
request.Success += user => Schedule(() => dispatchStatisticsUpdate(scoreInfo, user.Statistics));
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api.Queue(request);
}
private void dispatchStatisticsUpdate(ScoreInfo scoreInfo, UserStatistics updatedStatistics)
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{
string rulesetName = scoreInfo.Ruleset.ShortName;
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api.UpdateStatistics(updatedStatistics);
if (latestStatistics == null)
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return;
latestStatistics.TryGetValue(rulesetName, out UserStatistics? latestRulesetStatistics);
latestRulesetStatistics ??= new UserStatistics();
latestUpdate.Value = new UserStatisticsUpdate(scoreInfo, latestRulesetStatistics, updatedStatistics);
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latestStatistics[rulesetName] = updatedStatistics;
}
protected override void Dispose(bool isDisposing)
{
if (spectatorClient.IsNotNull())
spectatorClient.OnUserScoreProcessed -= userScoreProcessed;
base.Dispose(isDisposing);
}
}
}