lakebane/src/engine/net/client/handlers/ClaimAssetMsgHandler.java

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//      Magicbane Emulator Project © 2013 - 2022
//                www.magicbane.com


package engine.net.client.handlers;

import engine.Enum;
import engine.Enum.BuildingGroup;
import engine.db.archive.CityRecord;
import engine.db.archive.DataWarehouse;
import engine.exception.MsgSendException;
import engine.gameManager.BuildingManager;
import engine.net.client.ClientConnection;
import engine.net.client.msg.ClaimAssetMsg;
import engine.net.client.msg.ClientNetMsg;
import engine.objects.Blueprint;
import engine.objects.Building;
import engine.objects.PlayerCharacter;
import org.pmw.tinylog.Logger;

import java.util.concurrent.locks.ReentrantReadWriteLock;

import static engine.math.FastMath.sqr;

/*
 * @Author:
 * @Summary: Processes application protocol message which keeps
 * client's tcp connection open.
 */
public class ClaimAssetMsgHandler extends AbstractClientMsgHandler {

    // Instance variables

    private final ReentrantReadWriteLock claimLock = new ReentrantReadWriteLock();

    public ClaimAssetMsgHandler() {
        super(ClaimAssetMsg.class);

    }

    @Override
    protected boolean _handleNetMsg(ClientNetMsg baseMsg, ClientConnection origin) throws MsgSendException {

        // Member variable declaration
        this.claimLock.writeLock().lock();

        try {
            PlayerCharacter sourcePlayer;
            Building targetBuilding;
            Blueprint blueprint;
            ClaimAssetMsg msg;
            int targetUUID;

            msg = (ClaimAssetMsg) baseMsg;
            targetUUID = msg.getUUID();

            sourcePlayer = origin.getPlayerCharacter();
            targetBuilding = BuildingManager.getBuildingFromCache(targetUUID);

            // Oops!  *** Refactor: Log error

            if ((sourcePlayer == null) ||
                    (targetBuilding == null))
                return true;

            // Player must be reasonably close to building in order to claim

            if (sourcePlayer.getLoc().distanceSquared2D(targetBuilding.getLoc()) > sqr(100))
                return true;

            // Early exit if object to be claimed is not errant

            if (targetBuilding.getOwnerUUID() != 0)
                return true;


            // Early exit if UUID < the last database derived building UUID.

            if (targetBuilding.getProtectionState() == Enum.ProtectionState.NPC) {
                return true;
            }

            // Early exit if claiming player does not
            // have a guild.

            // Errant players cannot claim

            if (sourcePlayer.getGuild().isEmptyGuild())
                return true;

            // Can't claim an object without a blueprint

            if (targetBuilding.getBlueprintUUID() == 0)
                return true;

            blueprint = targetBuilding.getBlueprint();

            //cant claim mine this way.
            if (blueprint.getBuildingGroup() == BuildingGroup.MINE)
                return true;

            // Players cannot claim shrines

            if ((targetBuilding.getBlueprint().getBuildingGroup() == BuildingGroup.SHRINE))
                return true;

            // Can't claim a tree if your guild already owns one
            // *** Refactor : Send error to player here

            if ((sourcePlayer.getGuild().isNation()) &&
                    (blueprint.getBuildingGroup() == BuildingGroup.TOL))
                return true;

            // Process the transfer of the building(s)

            if (blueprint.getBuildingGroup() == BuildingGroup.TOL) {
                targetBuilding.getCity().claim(sourcePlayer);

                // Push transfer of city to data warehouse
                CityRecord cityRecord = CityRecord.borrow(targetBuilding.getCity(), Enum.RecordEventType.TRANSFER);
                DataWarehouse.pushToWarehouse(cityRecord);

            } else
                targetBuilding.claim(sourcePlayer);

        } catch (Exception e) {
            Logger.error("ClaimAssetMsgHandler", e.getMessage());
        } finally {
            this.claimLock.writeLock().unlock();
        }
        return true;
    }

}