namespace ET
{
    public class CabinDestroySystem : DestroySystem<Cabin>
    {
        public override void Destroy(Cabin self)
        {
            Unit unit = self.Parent.Parent.GetParent<Unit>();
            unit.RemoveGrandChild(self.Id);
            
            // 需要清理所管理的农田的指向
            foreach (long farmlandId in self.FarmlandIds)
            {
                var farmland = unit.GetGrandChild<Farmland>(farmlandId);
                if (farmland != null)
                {
                    farmland.SetCabinId(0);
                }
            }
            
            // 农民变空闲
            if (self.PeopleId > 0)
            {
                var peopleComp = unit.GetComponent<PeopleComponent>();
                var people = peopleComp.GetChild<People>(self.PeopleId);
                people.SetBehaveType(ConstBehaveType.BEHAVE_IDLE);
                self.PeopleId = 0;
            }
        }
    }

    [FriendClass(typeof(Cabin))]
    public static class CabinSystem
    {
        public static void FromMessage(this Cabin self, CabinProto proto)
        {
            self.Id = proto.Id;
            self.PeopleId = proto.PeopleId;
            self.FarmlandIds = proto.FarmlandIds;
        }

        public static CabinProto ToMessage(this Cabin self)
        {
            var proto = new CabinProto();
            proto.Id = self.Id;
            proto.PeopleId = self.PeopleId;
            proto.FarmlandIds = self.FarmlandIds;
            return proto;
        }

        public static void PeoplePrepare(this Cabin self,long peopleId)
        {
            self.PeopleId = peopleId;
        }

        public static bool PeopleArrive(this Cabin self,long peopleId)
        {
            if (self.PeopleId != peopleId)
            {
                return false;
            }
            self.ResidentState = 1;
            return true;
        }
        public static void PeopleLeave(this Cabin self)
        {
            self.ResidentState = 0;
            self.PeopleId = 0;
        }

        public static bool AddFarmland(this Cabin self,long farmlandId)
        {
            if (self.FarmlandIds.Contains(farmlandId))
            {
                return false;
            }
            self.FarmlandIds.Add(farmlandId);
            return true;
        }

        public static void RemoveFarmland(this Cabin self, long farmlandId)
        {
            if (self.FarmlandIds.Contains(farmlandId))
            {
                self.FarmlandIds.Remove(farmlandId);
            }
        }

        public static int GetRange(this Cabin self)
        {
            return 20;
        }
    }
}