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osu-lazer/osu.Game/Screens/Select/Leaderboards/BeatmapLeaderboard.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;
using System.Collections.Generic;
using System.Linq;
using osu.Framework.Allocation;
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using osu.Framework.Bindables;
using osu.Game.Beatmaps;
using osu.Game.Online.API;
using osu.Game.Online.API.Requests;
using osu.Game.Online.Leaderboards;
using osu.Game.Rulesets;
using osu.Game.Rulesets.Mods;
using osu.Game.Scoring;
namespace osu.Game.Screens.Select.Leaderboards
{
public class BeatmapLeaderboard : Leaderboard<BeatmapLeaderboardScope, ScoreInfo>
{
public Action<ScoreInfo> ScoreSelected;
[Resolved]
private RulesetStore rulesets { get; set; }
private BeatmapInfo beatmap;
public BeatmapInfo Beatmap
{
get => beatmap;
set
{
if (beatmap == value)
return;
beatmap = value;
Scores = null;
UpdateScores();
}
}
private bool filterMods;
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private IBindable<WeakReference<ScoreInfo>> itemRemoved;
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/// <summary>
/// Whether to apply the game's currently selected mods as a filter when retrieving scores.
/// </summary>
public bool FilterMods
{
get => filterMods;
set
{
if (value == filterMods)
return;
filterMods = value;
UpdateScores();
}
}
[Resolved]
private ScoreManager scoreManager { get; set; }
[Resolved]
private IBindable<RulesetInfo> ruleset { get; set; }
[Resolved]
private IBindable<IReadOnlyList<Mod>> mods { get; set; }
[Resolved]
private IAPIProvider api { get; set; }
[BackgroundDependencyLoader]
private void load()
{
ruleset.ValueChanged += _ => UpdateScores();
mods.ValueChanged += _ =>
{
if (filterMods)
UpdateScores();
};
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itemRemoved = scoreManager.ItemRemoved.GetBoundCopy();
itemRemoved.BindValueChanged(onScoreRemoved);
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}
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protected override void Reset()
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{
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base.Reset();
TopScore = null;
}
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private void onScoreRemoved(ValueChangedEvent<WeakReference<ScoreInfo>> score) => Schedule(RefreshScores);
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protected override bool IsOnlineScope => Scope != BeatmapLeaderboardScope.Local;
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protected override APIRequest FetchScores(Action<IEnumerable<ScoreInfo>> scoresCallback)
{
if (Beatmap == null)
{
PlaceholderState = PlaceholderState.NoneSelected;
return null;
}
if (Scope == BeatmapLeaderboardScope.Local)
{
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var scores = scoreManager
.QueryScores(s => !s.DeletePending && s.Beatmap.ID == Beatmap.ID && s.Ruleset.ID == ruleset.Value.ID);
if (filterMods && !mods.Value.Any())
{
// we need to filter out all scores that have any mods to get all local nomod scores
scores = scores.Where(s => !s.Mods.Any());
}
else if (filterMods)
{
// otherwise find all the scores that have *any* of the currently selected mods (similar to how web applies mod filters)
// we're creating and using a string list representation of selected mods so that it can be translated into the DB query itself
var selectedMods = mods.Value.Select(m => m.Acronym);
scores = scores.Where(s => s.Mods.Any(m => selectedMods.Contains(m.Acronym)));
}
Scores = scores.OrderByDescending(s => s.TotalScore).ToArray();
PlaceholderState = Scores.Any() ? PlaceholderState.Successful : PlaceholderState.NoScores;
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return null;
}
if (api?.IsLoggedIn != true)
{
PlaceholderState = PlaceholderState.NotLoggedIn;
return null;
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}
if (Beatmap.OnlineBeatmapID == null || Beatmap?.Status <= BeatmapSetOnlineStatus.Pending)
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{
PlaceholderState = PlaceholderState.Unavailable;
return null;
}
if (!api.LocalUser.Value.IsSupporter && (Scope != BeatmapLeaderboardScope.Global || filterMods))
{
PlaceholderState = PlaceholderState.NotSupporter;
return null;
}
IReadOnlyList<Mod> requestMods = null;
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if (filterMods && !mods.Value.Any())
// add nomod for the request
requestMods = new Mod[] { new ModNoMod() };
else if (filterMods)
requestMods = mods.Value;
var req = new GetScoresRequest(Beatmap, ruleset.Value ?? Beatmap.Ruleset, Scope, requestMods);
req.Success += r =>
{
scoresCallback?.Invoke(r.Scores.Select(s => s.CreateScoreInfo(rulesets)));
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TopScore = r.UserScore?.CreateScoreInfo(rulesets);
};
return req;
}
protected override LeaderboardScore CreateDrawableScore(ScoreInfo model, int index) => new LeaderboardScore(model, index, IsOnlineScope)
{
Action = () => ScoreSelected?.Invoke(model)
};
protected override LeaderboardScore CreateDrawableTopScore(ScoreInfo model) => new LeaderboardScore(model, model.Position, false)
{
Action = () => ScoreSelected?.Invoke(model)
};
}
}