using Google.Protobuf;
using Google.Protobuf.WellKnownTypes;


using ServerCore;
using ServerBase;
using ServerCommon;
using ServerCommon.BusinessLogDomain;
using MetaAssets;


using static ClientToGameRes.Types;


namespace GameServer.PacketHandler;

[PacketHandler(typeof(ClientToGameReq), typeof(ClientToGameReq.Types.C2GS_REQ_LAND_RENTAL_iNFO), typeof(LandRentalInfoPacketHandler), typeof(GameLoginListener))]
internal class LandRentalInfoPacketHandler : PacketRecvHandler
{
    public static bool send_S2C_ACK_LAND_RENTAL_INFO(Player owner, Result result, GS2C_ACK_LAND_RENTAL_INFO res)
    {
        var ack_packet = new ClientToGame();
        ack_packet.Response = new ClientToGameRes();

        ack_packet.Response.ErrorCode = result.ErrorCode;
        ack_packet.Response.AckLandRentalInfo = res;

        if (false == GameServerApp.getServerLogic().onSendPacket(owner, ack_packet))
        {
            return false;
        }

        return true;
    }

    public override async Task<Result> onProcessPacket(ISession entityWithSession, Google.Protobuf.IMessage recvMessage)
    {
        var result = new Result();
        var err_msg = string.Empty;

        var player = entityWithSession as Player;
        NullReferenceCheckHelper.throwIfNull(player, () => $"player is null !!!");

        var server_logic = GameServerApp.getServerLogic();

        var req_msg = recvMessage as ClientToGame;
        NullReferenceCheckHelper.throwIfNull(req_msg, () => $"req_msg is null !!! - {player.toBasicString()}");

        var request = req_msg.Request.ReqLandRentalInfo;
        var res = new GS2C_ACK_LAND_RENTAL_INFO();

        if (!MapManager.Instance.GetLandMapTree(request.LandMetaId, out var land_map_tree))
        {
            err_msg = $"Failed to GetLandMapTree() !!! : LandMetaId:{request.LandMetaId} - {player.toBasicString()}";
            result.setFail(ServerErrorCode.LandMapTreeDataNotFound, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_S2C_ACK_LAND_RENTAL_INFO(player, result, res);
            return result;
        }

        var building_map_tree = land_map_tree.ChildBuildingMapTree;
        if (building_map_tree == null)
        {
            err_msg = $"Not Exist LandMapTree ChildBuilding !!! : LandMap:{land_map_tree.LandMapFileName} - {player.toBasicString()}";
            result.setFail(ServerErrorCode.LandMapTreeChildBuildingNotFound, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_S2C_ACK_LAND_RENTAL_INFO(player, result, res);
            return result;
        }

        var owned_land_agent_action = player.getEntityAction<OwnedLandAgentAction>();
        NullReferenceCheckHelper.throwIfNull(owned_land_agent_action, () => $"owned_land_agent_action is null !!! - {player.toBasicString()}");

        if (!owned_land_agent_action.isOwnedLand(request.LandMetaId))
        {
            err_msg = $"Not Owned Land !!! : landMetaId:{request.LandMetaId} - {player.toBasicString()}";
            result.setFail(ServerErrorCode.OwnedLandNotFound, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_S2C_ACK_LAND_RENTAL_INFO(player, result, res);
            return result;
        }
            
        var building_manager = server_logic.getBuildingManager();
        if (!building_manager.tryGetBuilding(building_map_tree.BuildingMetaId, out var building))
        {
            err_msg = $"Failed to tryGetBuilding() !!! : buildingMetaId:{building_map_tree.BuildingMetaId} - {player.toBasicString()}";
            result.setFail(ServerErrorCode.BuildingNotFound, err_msg);
            Log.getLogger().error(result.toBasicString());

            send_S2C_ACK_LAND_RENTAL_INFO(player, result, res);
            return result;
        }

        var building_floor_agent_action = building.getEntityAction<BuildingFloorAgentAction>();
        NullReferenceCheckHelper.throwIfNull(building_floor_agent_action, () => $"building_floor_agent_action is null !!! - {player.toBasicString()}");

        var building_floors = building_floor_agent_action.getBuildingFloors();
        foreach (var(floor, building_floor) in building_floors)
        {
            (result, var building_floor_info) = await building_floor.tryGetBuildingFloorInfo();

            res.BuildingFloorInfos.Add(floor, building_floor_info);
        }

        send_S2C_ACK_LAND_RENTAL_INFO(player, result, res);

        return result;
    }
}