/*
 * Copyright (C) 2026 welterde
 *
 * 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 de.welterde.em;

import de.welterde.em.io.EntityRecord;

/**
 *
 * @author welterde
 */
public abstract class EntityBase implements Entity {
    protected EntityStorage ctx;
    protected int id;
        
    public EntityBase() {
        this.id = -1;
        this.ctx = null;
    }
    
    public EntityBase(EntityStorage ctx, int id) {
        this.id = id;
        this.ctx = ctx;
    }
    
    public EntityBase(EntityRecord r) {
        this.id = r.getID();
        this.ctx = r.getContext();
    }
    
    public int getEntityId() {
        if(this.id == -1)
            throw new IllegalStateException("Entity not initialized");
        return this.id;
    }
    public void initEntity(EntityStorage ctx, int id) {
        if((this.id != -1) && (this.ctx != null))
            throw new IllegalStateException("Entity already initialized");
        if(id == -1)
            throw new IllegalArgumentException("Invalid ID -1");
        if(ctx == null)
            throw new NullPointerException("Context is null");
        this.id = id;
        this.ctx = ctx;
    }
    
    public boolean isEntityInitialized() {
        return this.id != -1;
    }
    
}