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using ArcaneLibs.Extensions;
using LibMatrix.Extensions;
using LibMatrix.Filters;
using LibMatrix.Homeservers;
using LibMatrix.Interfaces.Services;
using LibMatrix.Responses;
using Microsoft.Extensions.Logging;
namespace LibMatrix.Helpers;
public class SyncStateResolver(AuthenticatedHomeserverGeneric homeserver, ILogger? logger = null, IStorageProvider? storageProvider = null) {
public string? Since { get; set; }
public int Timeout { get; set; } = 30000;
public string? SetPresence { get; set; } = "online";
public SyncFilter? Filter { get; set; }
public bool FullState { get; set; } = false;
public SyncResponse? MergedState { get; set; }
private SyncHelper _syncHelper = new(homeserver, logger);
public async Task<(SyncResponse next, SyncResponse merged)> ContinueAsync(CancellationToken? cancellationToken = null) {
// copy properties
_syncHelper.Since = Since;
_syncHelper.Timeout = Timeout;
_syncHelper.SetPresence = SetPresence;
_syncHelper.Filter = Filter;
_syncHelper.FullState = FullState;
// run sync or grab from storage if available
var sync = storageProvider != null && await storageProvider.ObjectExistsAsync(Since ?? "init")
? await storageProvider.LoadObjectAsync<SyncResponse>(Since ?? "init")
: await _syncHelper.SyncAsync(cancellationToken);
if (sync is null) return await ContinueAsync(cancellationToken);
if (storageProvider != null && !await storageProvider.ObjectExistsAsync(Since ?? "init"))
await storageProvider.SaveObjectAsync(Since ?? "init", sync);
if (MergedState is null) MergedState = sync;
else MergedState = MergeSyncs(MergedState, sync);
Since = sync.NextBatch;
return (sync, MergedState);
}
public async Task OptimiseStore() {
if (storageProvider is null) return;
var keys = await storageProvider.GetAllKeysAsync();
var count = keys.Count - 2;
var merged = await storageProvider.LoadObjectAsync<SyncResponse>("init");
if (merged is null) return;
while (keys.Contains(merged.NextBatch)) {
var next = await storageProvider.LoadObjectAsync<SyncResponse>(merged.NextBatch);
if (next is null) break;
merged = MergeSyncs(merged, next);
Console.WriteLine($"Merged {merged.NextBatch}, {--count} remaining...");
}
await storageProvider.SaveObjectAsync("merged", merged);
Environment.Exit(0);
}
private SyncResponse MergeSyncs(SyncResponse oldSync, SyncResponse newSync) {
oldSync.NextBatch = newSync.NextBatch ?? oldSync.NextBatch;
oldSync.AccountData ??= new EventList();
oldSync.AccountData.Events ??= [];
if (newSync.AccountData?.Events is not null)
oldSync.AccountData.Events.MergeStateEventLists(newSync.AccountData?.Events ?? []);
oldSync.Presence ??= new();
oldSync.Presence.Events?.ReplaceBy(newSync.Presence?.Events ?? [], (oldState, newState) => oldState.Sender == newState.Sender && oldState.Type == newState.Type);
oldSync.DeviceOneTimeKeysCount ??= new();
if (newSync.DeviceOneTimeKeysCount is not null)
foreach (var (key, value) in newSync.DeviceOneTimeKeysCount)
oldSync.DeviceOneTimeKeysCount[key] = value;
if (newSync.Rooms is not null)
oldSync.Rooms = MergeRoomsDataStructure(oldSync.Rooms, newSync.Rooms);
oldSync.ToDevice ??= new EventList();
oldSync.ToDevice.Events ??= [];
if (newSync.ToDevice?.Events is not null)
oldSync.ToDevice.Events.MergeStateEventLists(newSync.ToDevice?.Events ?? []);
oldSync.DeviceLists ??= new SyncResponse.DeviceListsDataStructure();
oldSync.DeviceLists.Changed ??= [];
oldSync.DeviceLists.Left ??= [];
if (newSync.DeviceLists?.Changed is not null)
foreach (var s in newSync.DeviceLists.Changed!) {
oldSync.DeviceLists.Left.Remove(s);
oldSync.DeviceLists.Changed.Add(s);
}
if (newSync.DeviceLists?.Left is not null)
foreach (var s in newSync.DeviceLists.Left!) {
oldSync.DeviceLists.Changed.Remove(s);
oldSync.DeviceLists.Left.Add(s);
}
return oldSync;
}
private List<StateEventResponse>? MergePresenceEvents(List<StateEventResponse>? oldEvents, List<StateEventResponse>? newEvents) {
if (oldEvents is null) return newEvents;
if (newEvents is null) return oldEvents;
foreach (var newEvent in newEvents) {
oldEvents.RemoveAll(x => x.Sender == newEvent.Sender && x.Type == newEvent.Type);
oldEvents.Add(newEvent);
}
return oldEvents;
}
#region Merge rooms
private SyncResponse.RoomsDataStructure MergeRoomsDataStructure(SyncResponse.RoomsDataStructure? oldState, SyncResponse.RoomsDataStructure newState) {
if (oldState is null) return newState;
oldState.Join ??= new Dictionary<string, SyncResponse.RoomsDataStructure.JoinedRoomDataStructure>();
foreach (var (key, value) in newState.Join ?? new Dictionary<string, SyncResponse.RoomsDataStructure.JoinedRoomDataStructure>())
if (!oldState.Join.ContainsKey(key)) oldState.Join[key] = value;
else oldState.Join[key] = MergeJoinedRoomDataStructure(oldState.Join[key], value);
oldState.Invite ??= new Dictionary<string, SyncResponse.RoomsDataStructure.InvitedRoomDataStructure>();
foreach (var (key, value) in newState.Invite ?? new Dictionary<string, SyncResponse.RoomsDataStructure.InvitedRoomDataStructure>())
if (!oldState.Invite.ContainsKey(key)) oldState.Invite[key] = value;
else oldState.Invite[key] = MergeInvitedRoomDataStructure(oldState.Invite[key], value);
oldState.Leave ??= new Dictionary<string, SyncResponse.RoomsDataStructure.LeftRoomDataStructure>();
foreach (var (key, value) in newState.Leave ?? new Dictionary<string, SyncResponse.RoomsDataStructure.LeftRoomDataStructure>()) {
if (!oldState.Leave.ContainsKey(key)) oldState.Leave[key] = value;
else oldState.Leave[key] = MergeLeftRoomDataStructure(oldState.Leave[key], value);
if (oldState.Invite.ContainsKey(key)) oldState.Invite.Remove(key);
if (oldState.Join.ContainsKey(key)) oldState.Join.Remove(key);
}
return oldState;
}
private SyncResponse.RoomsDataStructure.LeftRoomDataStructure MergeLeftRoomDataStructure(SyncResponse.RoomsDataStructure.LeftRoomDataStructure oldData,
SyncResponse.RoomsDataStructure.LeftRoomDataStructure newData) {
oldData.AccountData ??= new EventList();
oldData.AccountData.Events ??= [];
oldData.Timeline ??= new SyncResponse.RoomsDataStructure.JoinedRoomDataStructure.TimelineDataStructure();
oldData.Timeline.Events ??= [];
oldData.State ??= new EventList();
oldData.State.Events ??= [];
if (newData.AccountData?.Events is not null)
oldData.AccountData.Events.MergeStateEventLists(newData.AccountData?.Events ?? []);
if (newData.Timeline?.Events is not null)
oldData.Timeline.Events.MergeStateEventLists(newData.Timeline?.Events ?? []);
oldData.Timeline.Limited = newData.Timeline?.Limited ?? oldData.Timeline.Limited;
oldData.Timeline.PrevBatch = newData.Timeline?.PrevBatch ?? oldData.Timeline.PrevBatch;
if (newData.State?.Events is not null)
oldData.State.Events.MergeStateEventLists(newData.State?.Events ?? []);
return oldData;
}
private SyncResponse.RoomsDataStructure.InvitedRoomDataStructure MergeInvitedRoomDataStructure(SyncResponse.RoomsDataStructure.InvitedRoomDataStructure oldData,
SyncResponse.RoomsDataStructure.InvitedRoomDataStructure newData) {
oldData.InviteState ??= new EventList();
oldData.InviteState.Events ??= [];
if (newData.InviteState?.Events is not null)
oldData.InviteState.Events.MergeStateEventLists(newData.InviteState?.Events ?? []);
return oldData;
}
private SyncResponse.RoomsDataStructure.JoinedRoomDataStructure MergeJoinedRoomDataStructure(SyncResponse.RoomsDataStructure.JoinedRoomDataStructure oldData,
SyncResponse.RoomsDataStructure.JoinedRoomDataStructure newData) {
oldData.AccountData ??= new EventList();
oldData.AccountData.Events ??= [];
oldData.Timeline ??= new SyncResponse.RoomsDataStructure.JoinedRoomDataStructure.TimelineDataStructure();
oldData.Timeline.Events ??= [];
oldData.State ??= new EventList();
oldData.State.Events ??= [];
oldData.Ephemeral ??= new EventList();
oldData.Ephemeral.Events ??= [];
if (newData.AccountData?.Events is not null)
oldData.AccountData.Events.MergeStateEventLists(newData.AccountData?.Events ?? []);
if (newData.Timeline?.Events is not null)
oldData.Timeline.Events.MergeStateEventLists(newData.Timeline?.Events ?? []);
oldData.Timeline.Limited = newData.Timeline?.Limited ?? oldData.Timeline.Limited;
oldData.Timeline.PrevBatch = newData.Timeline?.PrevBatch ?? oldData.Timeline.PrevBatch;
if (newData.State?.Events is not null)
oldData.State.Events.MergeStateEventLists(newData.State?.Events ?? []);
if (newData.Ephemeral?.Events is not null)
oldData.Ephemeral.Events.MergeStateEventLists(newData.Ephemeral?.Events ?? []);
oldData.UnreadNotifications ??= new SyncResponse.RoomsDataStructure.JoinedRoomDataStructure.UnreadNotificationsDataStructure();
oldData.UnreadNotifications.HighlightCount = newData.UnreadNotifications?.HighlightCount ?? oldData.UnreadNotifications.HighlightCount;
oldData.UnreadNotifications.NotificationCount = newData.UnreadNotifications?.NotificationCount ?? oldData.UnreadNotifications.NotificationCount;
oldData.Summary ??= new SyncResponse.RoomsDataStructure.JoinedRoomDataStructure.SummaryDataStructure {
Heroes = newData.Summary?.Heroes ?? oldData.Summary.Heroes,
JoinedMemberCount = newData.Summary?.JoinedMemberCount ?? oldData.Summary.JoinedMemberCount,
InvitedMemberCount = newData.Summary?.InvitedMemberCount ?? oldData.Summary.InvitedMemberCount
};
oldData.Summary.Heroes = newData.Summary?.Heroes ?? oldData.Summary.Heroes;
oldData.Summary.JoinedMemberCount = newData.Summary?.JoinedMemberCount ?? oldData.Summary.JoinedMemberCount;
oldData.Summary.InvitedMemberCount = newData.Summary?.InvitedMemberCount ?? oldData.Summary.InvitedMemberCount;
return oldData;
}
#endregion
}
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