/*
 * Copyright 2010-2013 Ning, Inc.
 *
 * Ning licenses this file to you under the Apache License, version 2.0
 * (the "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at:
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

package com.ning.billing.catalog;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlID;
import javax.xml.bind.annotation.XmlIDREF;
import java.net.URI;
import java.util.Arrays;

import com.ning.billing.catalog.api.Product;
import com.ning.billing.catalog.api.ProductCategory;
import com.ning.billing.util.config.catalog.ValidatingConfig;
import com.ning.billing.util.config.catalog.ValidationErrors;

@XmlAccessorType(XmlAccessType.NONE)
public class DefaultProduct extends ValidatingConfig<StandaloneCatalog> implements Product {
    private static final DefaultProduct[] EMPTY_PRODUCT_LIST = new DefaultProduct[0];

    @XmlAttribute(required = true)
    @XmlID
    private String name;

    @XmlAttribute(required = false)
    private Boolean retired = false;

    @XmlElement(required = true)
    private ProductCategory category;

    @XmlElementWrapper(name = "included", required = false)
    @XmlIDREF
    @XmlElement(name = "addonProduct", required = true)
    private DefaultProduct[] included = EMPTY_PRODUCT_LIST;

    @XmlElementWrapper(name = "available", required = false)
    @XmlIDREF
    @XmlElement(name = "addonProduct", required = true)
    private DefaultProduct[] available = EMPTY_PRODUCT_LIST;

    //Not included in XML
    private String catalogName;

    @Override
    public String getCatalogName() {
        return catalogName;
    }

    @Override
    public boolean isRetired() {
        return retired;
    }

    @Override
    public ProductCategory getCategory() {
        return category;
    }

    @Override
    public DefaultProduct[] getIncluded() {
        return included;
    }

    @Override
    public DefaultProduct[] getAvailable() {
        return available;
    }

    public DefaultProduct() {
    }

    public DefaultProduct(final String name, final ProductCategory category) {
        this.category = category;
        this.name = name;
    }

    @Override
    public String getName() {
        return name;
    }

    public boolean isIncluded(final DefaultProduct addon) {
        for (final DefaultProduct p : included) {
            if (addon == p) {
                return true;
            }
        }
        return false;
    }

    public boolean isAvailable(final DefaultProduct addon) {
        for (final DefaultProduct p : included) {
            if (addon == p) {
                return true;
            }
        }
        return false;
    }

    @Override
    public void initialize(final StandaloneCatalog catalog, final URI sourceURI) {
        catalogName = catalog.getCatalogName();
    }

    @Override
    public ValidationErrors validate(final StandaloneCatalog catalog, final ValidationErrors errors) {
        //TODO: MDW validation: inclusion and exclusion lists can only contain addon products
        //TODO: MDW validation: a given product can only be in, at most, one of inclusion and exclusion lists
        return errors;
    }

    protected DefaultProduct setName(final String name) {
        this.name = name;
        return this;
    }

    protected DefaultProduct setCatagory(final ProductCategory category) {
        this.category = category;
        return this;
    }

    protected DefaultProduct setCategory(final ProductCategory category) {
        this.category = category;
        return this;
    }

    protected DefaultProduct setIncluded(final DefaultProduct[] included) {
        this.included = included;
        return this;
    }

    protected DefaultProduct setAvailable(final DefaultProduct[] available) {
        this.available = available;
        return this;
    }

    protected DefaultProduct setCatalogName(final String catalogName) {
        this.catalogName = catalogName;
        return this;
    }

    public DefaultProduct setRetired(final boolean retired) {
        this.retired = retired;
        return this;
    }

    @Override
    public String toString() {
        return "DefaultProduct [name=" + name + ", retired=" + retired + ", category=" + category + ", included="
                + Arrays.toString(included) + ", available=" + Arrays.toString(available) + ", catalogName="
                + catalogName + "]";
    }
}
