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osu-lazer/osu.Game/Online/Rooms/PlaylistItem.cs
2022-06-30 14:24:49 +09:00

146 lines
5.1 KiB
C#

// 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.Linq;
using JetBrains.Annotations;
using Newtonsoft.Json;
using osu.Framework.Bindables;
using osu.Game.Beatmaps;
using osu.Game.Online.API;
using osu.Game.Online.API.Requests.Responses;
using osu.Game.Utils;
namespace osu.Game.Online.Rooms
{
[JsonObject(MemberSerialization.OptIn)]
public class PlaylistItem : IEquatable<PlaylistItem>
{
[JsonProperty("id")]
public long ID { get; set; }
[JsonProperty("owner_id")]
public int OwnerID { get; set; }
[JsonProperty("ruleset_id")]
public int RulesetID { get; set; }
/// <summary>
/// Whether this <see cref="PlaylistItem"/> is still a valid selection for the <see cref="Room"/>.
/// </summary>
[JsonProperty("expired")]
public bool Expired { get; set; }
[JsonProperty("playlist_order")]
public ushort? PlaylistOrder { get; set; }
[JsonProperty("played_at")]
public DateTimeOffset? PlayedAt { get; set; }
[JsonProperty("allowed_mods")]
public APIMod[] AllowedMods { get; set; } = Array.Empty<APIMod>();
[JsonProperty("required_mods")]
public APIMod[] RequiredMods { get; set; } = Array.Empty<APIMod>();
/// <summary>
/// Used for deserialising from the API.
/// </summary>
[JsonProperty("beatmap")]
private APIBeatmap apiBeatmap
{
// This getter is required/used internally by JSON.NET during deserialisation to do default-value comparisons. It is never used during serialisation (see: ShouldSerializeapiBeatmap()).
// It will always return a null value on deserialisation, which JSON.NET will handle gracefully.
get => (APIBeatmap)Beatmap;
set => Beatmap = value;
}
/// <summary>
/// Used for serialising to the API.
/// </summary>
[JsonProperty("beatmap_id")]
private int onlineBeatmapId
{
get => Beatmap.OnlineID;
// This setter is only required for client-side serialise-then-deserialise operations.
// Serialisation is supposed to emit only a `beatmap_id`, but a (non-null) `beatmap` is required on deserialise.
set => Beatmap = new APIBeatmap { OnlineID = value };
}
/// <summary>
/// A beatmap representing this playlist item.
/// In many cases, this will *not* contain any usable information apart from OnlineID.
/// </summary>
[JsonIgnore]
public IBeatmapInfo Beatmap { get; private set; }
[JsonIgnore]
public IBindable<bool> Valid => valid;
private readonly Bindable<bool> valid = new BindableBool(true);
[JsonConstructor]
private PlaylistItem()
: this(new APIBeatmap())
{
}
public PlaylistItem(IBeatmapInfo beatmap)
{
Beatmap = beatmap;
}
public PlaylistItem(MultiplayerPlaylistItem item)
: this(new APIBeatmap { OnlineID = item.BeatmapID })
{
ID = item.ID;
OwnerID = item.OwnerID;
RulesetID = item.RulesetID;
Expired = item.Expired;
PlaylistOrder = item.PlaylistOrder;
PlayedAt = item.PlayedAt;
RequiredMods = item.RequiredMods.ToArray();
AllowedMods = item.AllowedMods.ToArray();
}
public void MarkInvalid() => valid.Value = false;
#region Newtonsoft.Json implicit ShouldSerialize() methods
// The properties in this region are used implicitly by Newtonsoft.Json to not serialise certain fields in some cases.
// They rely on being named exactly the same as the corresponding fields (casing included) and as such should NOT be renamed
// unless the fields are also renamed.
[UsedImplicitly]
public bool ShouldSerializeID() => false;
// ReSharper disable once IdentifierTypo
[UsedImplicitly]
public bool ShouldSerializeapiBeatmap() => false;
#endregion
public PlaylistItem With(Optional<IBeatmapInfo> beatmap = default, Optional<ushort?> playlistOrder = default) => new PlaylistItem(beatmap.GetOr(Beatmap))
{
ID = ID,
OwnerID = OwnerID,
RulesetID = RulesetID,
Expired = Expired,
PlaylistOrder = playlistOrder.GetOr(PlaylistOrder),
PlayedAt = PlayedAt,
AllowedMods = AllowedMods,
RequiredMods = RequiredMods,
valid = { Value = Valid.Value },
};
public bool Equals(PlaylistItem? other)
=> ID == other?.ID
&& Beatmap.OnlineID == other.Beatmap.OnlineID
&& RulesetID == other.RulesetID
&& Expired == other.Expired
&& PlaylistOrder == other.PlaylistOrder
&& AllowedMods.SequenceEqual(other.AllowedMods)
&& RequiredMods.SequenceEqual(other.RequiredMods);
}
}