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using System.Collections.Concurrent;
using System.Security.Cryptography;
using LibMatrix.EventTypes;
using LibMatrix.EventTypes.Spec.State;
using LibMatrix.Responses;
namespace LibMatrix.HomeserverEmulator.Services;
public class RoomStore {
public ConcurrentBag<Room> _rooms = new();
private Dictionary<string, Room> _roomsById = new();
private void RebuildIndexes() {
_roomsById = _rooms.ToDictionary(u => u.RoomId);
}
public Room? GetRoomById(string roomId, bool createIfNotExists = false) {
if (_roomsById.TryGetValue(roomId, out var user)) {
return user;
}
if (!createIfNotExists)
return null;
return CreateRoom(new() { });
}
public Room CreateRoom(CreateRoomRequest request) {
var room = new Room {
RoomId = $"!{Guid.NewGuid().ToString()}"
};
if (!string.IsNullOrWhiteSpace(request.Name))
room.SetStateInternal(new StateEvent() {
Type = RoomNameEventContent.EventId,
TypedContent = new RoomNameEventContent() {
Name = request.Name
}
});
if (!string.IsNullOrWhiteSpace(request.RoomAliasName))
room.SetStateInternal(new StateEvent() {
Type = RoomCanonicalAliasEventContent.EventId,
TypedContent = new RoomCanonicalAliasEventContent() {
Alias = $"#{request.RoomAliasName}:localhost"
}
});
foreach (var stateEvent in request.InitialState ?? []) {
room.SetStateInternal(stateEvent);
}
_rooms.Add(room);
RebuildIndexes();
return room;
}
public class Room {
public string RoomId { get; set; }
public List<StateEventResponse> State { get; set; } = new();
public Dictionary<string, EventContent> Timeline { get; set; } = new();
internal StateEventResponse SetStateInternal(StateEvent request) {
var state = new StateEventResponse() {
Type = request.Type,
StateKey = request.StateKey,
RawContent = request.RawContent,
EventId = Guid.NewGuid().ToString()
};
State.Add(state);
return state;
}
public StateEventResponse AddUser(string userId) {
return SetStateInternal(new() {
Type = RoomMemberEventContent.EventId,
StateKey = userId,
TypedContent = new RoomMemberEventContent() {
Membership = "join"
}
});
}
}
}
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