/*
    GriefPrevention Server Plugin for Minecraft
    Copyright (C) 2012 Ryan Hamshire

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 package me.ryanhamshire.GriefPrevention;

import org.bukkit.Bukkit;
import org.bukkit.OfflinePlayer;

import java.util.UUID;

//asynchronously loads player data without caching it in the datastore, then
//passes those data to a claim cleanup task which might decide to delete a claim for inactivity

class CleanupUnusedClaimPreTask implements Runnable 
{	
	private UUID ownerID = null;
	
	CleanupUnusedClaimPreTask(UUID uuid)
	{
		this.ownerID = uuid;
	}
	
	@Override
	public void run()
	{
		//get the data
	    PlayerData ownerData = GriefPrevention.instance.dataStore.getPlayerDataFromStorage(ownerID);
	    OfflinePlayer ownerInfo = Bukkit.getServer().getOfflinePlayer(ownerID);
	    
	    //expiration code uses last logout timestamp to decide whether to expire claims
	    //don't expire claims for online players
	    if(ownerInfo.isOnline()) return;
		if(ownerInfo.getLastPlayed() <= 0) return;
	    
	    GriefPrevention.AddLogEntry("Looking for expired claims.  Checking data for " + ownerID.toString(), CustomLogEntryTypes.Debug, true);
	    
	    //skip claims belonging to exempted players based on block totals in config
	    int bonusBlocks = ownerData.getBonusClaimBlocks();
	    if(bonusBlocks >= GriefPrevention.instance.config_claims_expirationExemptionBonusBlocks || bonusBlocks + ownerData.getAccruedClaimBlocks() >= GriefPrevention.instance.config_claims_expirationExemptionTotalBlocks)
        {
            GriefPrevention.AddLogEntry("Player exempt from claim expiration based on claim block counts vs. config file settings.", CustomLogEntryTypes.Debug, true);
            return;
        }

        Claim claimToExpire = null;

	    for (Claim claim : GriefPrevention.instance.dataStore.getClaims())
		{
			if (ownerID.equals(claim.ownerID))
			{
				claimToExpire = claim;
				break;
			}
		}

		if (claimToExpire == null)
		{
			GriefPrevention.AddLogEntry("Unable to find a claim to expire for " + ownerID.toString(), CustomLogEntryTypes.Debug, false);
			return;
		}

	    //pass it back to the main server thread, where it's safe to delete a claim if needed
	    Bukkit.getScheduler().scheduleSyncDelayedTask(GriefPrevention.instance, new CleanupUnusedClaimTask(claimToExpire, ownerData, ownerInfo), 1L);
	}
}