public async Task <Unit> Handle(ShowFriendCommand command, CancellationToken cancellationToken)
{
var playerId = command.PlayerId;
var player = await _playerDomainService.Get(playerId);
if (player == null)
{
await _bus.RaiseEvent(new DomainNotification($"角色不存在！"));
return(Unit.Value);
}
var playerRelationQuery = await _playerRelationDomainService.GetAll();
//我加了别人的
var requestIds = playerRelationQuery.Where(x => x.PlayerId == playerId && x.Type == PlayerRelationTypeEnum.好友).Select(x => x.RelationId).ToList();
//别人加了我的
var friendToMeIds = playerRelationQuery.Where(x => x.RelationId == playerId && x.Type == PlayerRelationTypeEnum.好友).Select(x => x.PlayerId).ToList();
//互相加了的
var friendIds = requestIds.Intersect(friendToMeIds).ToList();
requestIds = requestIds.Except(friendIds).ToList();
friendToMeIds = friendToMeIds.Except(friendIds).ToList();
var playerQuery = await _playerDomainService.GetAll();
var players = playerQuery.Where(x => friendIds.Contains(x.Id)).ToList();
var requests = playerQuery.Where(x => requestIds.Contains(x.Id)).ToList();
var friendToMes = playerQuery.Where(x => friendToMeIds.Contains(x.Id)).ToList();
await _mudProvider.ShowFriend(playerId, new MyFriendModel
{
Friends = _mapper.Map <List <PlayerBaseInfo> >(players),
Requests = _mapper.Map <List <PlayerBaseInfo> >(requests),
FriendMes = _mapper.Map <List <PlayerBaseInfo> >(friendToMes)
});
return(Unit.Value);
}