/*******************************************************************************
 * Copyright (C) 2013 JMaNGOS <http://jmangos.org/>
 * 
 * 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 2 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 org.jmangos.realm.service;

import gnu.trove.map.hash.TLongObjectHashMap;

import java.util.List;

import javax.annotation.PostConstruct;

import org.jmangos.commons.dataholder.DataLoadService;
import org.jmangos.commons.entities.ItemPrototype;
import org.jmangos.world.services.ItemPrototypeService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

/**
 * The Class ItemStorages.
 */
@Component
public class ItemStorages implements DataLoadService<TLongObjectHashMap<ItemPrototype>> {

    /** The Constant logger. */
    private static final Logger logger = LoggerFactory.getLogger(ItemStorages.class);

    @Autowired
    private ItemPrototypeService itemPrototypeService;

    /** The item prototypes. */
    private TLongObjectHashMap<ItemPrototype> itemPrototypes =
            new TLongObjectHashMap<ItemPrototype>();

    /**
     * 
     * @see org.jmangos.commons.dataholder.DataLoadService#get()
     */
    @Override
    public TLongObjectHashMap<ItemPrototype> get() {

        return this.itemPrototypes;
    }

    /**
     * Gets the.
     * 
     * @param guid
     *        the guid
     * @return the item prototype
     */
    public ItemPrototype get(final int guid) {

        if (this.itemPrototypes.containsKey(guid)) {
            logger.debug(String.format(
                    "The specified id: %d hit in the storage! DisplayInfoID: %d", guid,
                    this.itemPrototypes.get(guid).getDisplayInfoID()));
            return this.itemPrototypes.get(guid);
        } else {
            logger.debug(String.format(
                    "The specified id: %d not in the store. Trying to load directly from the database!",
                    guid));
            final ItemPrototype ip = this.itemPrototypeService.readItemPrototype(guid);
            if (ip != null) {
                this.itemPrototypes.put(ip.getEntry(), ip);
                return ip;
            }
        }
        return null;
    }

    /**
     * 
     * @see org.jmangos.commons.dataholder.DataLoadService#load()
     */
    @Override
    public TLongObjectHashMap<ItemPrototype> load() {

        Long eTime = System.currentTimeMillis();

        final TLongObjectHashMap<ItemPrototype> map = new TLongObjectHashMap<ItemPrototype>();
        final List<ItemPrototype> itemPrototypeList =
                this.itemPrototypeService.readItemPrototypes();

        // Fill map
        for (final ItemPrototype item : itemPrototypeList) {
            map.put(item.getEntry(), item);
        }

        eTime = System.currentTimeMillis() - eTime;
        ItemStorages.logger.info(String.format("Loaded [%d] ItemPrototypes under %d ms",
                map.size(), eTime));

        this.itemPrototypes = map;
        return this.itemPrototypes;
    }

    /**
     * 
     * @see org.jmangos.commons.dataholder.DataLoadService#reload()
     */
    @Override
    public void reload() {

        final TLongObjectHashMap<ItemPrototype> itemProrotypesTemp = load();
        this.itemPrototypes = itemProrotypesTemp;
    }

    /**
     * 
     * @see org.jmangos.commons.dataholder.DataLoadService#save()
     */
    @Override
    public void save() {

        // TODO Save in xml?

    }

    /**
     * 
     * @see org.jmangos.commons.service.Service#start()
     */
    @PostConstruct
    @Override
    public void start() {

        // ENABLE LAZY Loading for develop
        // load();
    }

    /**
     * 
     * @see org.jmangos.commons.service.Service#stop()
     */
    @Override
    public void stop() {

        this.itemPrototypes.clear();
    }

}