/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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 org.apache.sis.internal.metadata;

import java.net.URL;
import java.util.Locale;
import java.util.MissingResourceException;
import org.opengis.util.InternationalString;
import org.apache.sis.util.resources.KeyConstants;
import org.apache.sis.util.resources.IndexedResourceBundle;
import org.apache.sis.util.resources.ResourceInternationalString;


/**
 * Warning and error messages that are specific to the {@code sis-metadata} module.
 * Resources in this file should not be used by any other module. For resources shared by
 * all modules in the Apache SIS project, see {@link org.apache.sis.util.resources} package.
 *
 * @author  Martin Desruisseaux (Geomatys)
 * @version 1.0
 * @since   1.0
 * @module
 */
public final class Resources extends IndexedResourceBundle {
    /**
     * Resource keys. This class is used when compiling sources, but no dependencies to
     * {@code Keys} should appear in any resulting class files. Since the Java compiler
     * inlines final integer values, using long identifiers will not bloat the constant
     * pools of compiled classes.
     *
     * @author  Martin Desruisseaux (Geomatys)
     * @since   1.0
     * @module
     */
    public static final class Keys extends KeyConstants {
        /**
         * The unique instance of key constants handler.
         */
        static final Keys INSTANCE = new Keys();

        /**
         * For {@link #INSTANCE} creation only.
         */
        private Keys() {
        }

        /**
         * Bounding box crosses the antimeridian.
         */
        public static final short BoxCrossesAntiMeridian = 3;

        /**
         * Connection to “{0}” database is already initialized.
         */
        public static final short ConnectionAlreadyInitialized_1 = 6;

        /**
         * This metadata element is already initialized with value “{0}”.
         */
        public static final short ElementAlreadyInitialized_1 = 2;

        /**
         * … {0} elements omitted …
         */
        public static final short ElementsOmitted_1 = 4;

        /**
         * Illegal class `{1}`. Specify the `{0}` interface instead.
         */
        public static final short ExpectedInterface_2 = 5;

        /**
         * This metadata is not modifiable.
         */
        public static final short UnmodifiableMetadata = 1;
    }

    /**
     * Constructs a new resource bundle loading data from the given UTF file.
     *
     * @param resources  the path of the binary file containing resources, or {@code null} if
     *        there is no resources. The resources may be a file or an entry in a JAR file.
     */
    public Resources(final URL resources) {
        super(resources);
    }

    /**
     * Returns the handle for the {@code Keys} constants.
     *
     * @return a handler for the constants declared in the inner {@code Keys} class.
     */
    @Override
    protected KeyConstants getKeyConstants() {
        return Keys.INSTANCE;
    }

    /**
     * Returns resources in the given locale.
     *
     * @param  locale  the locale, or {@code null} for the default locale.
     * @return resources in the given locale.
     * @throws MissingResourceException if resources can not be found.
     */
    public static Resources forLocale(final Locale locale) throws MissingResourceException {
        return getBundle(Resources.class, locale);
    }

    /**
     * Gets a string for the given key from this resource bundle or one of its parents.
     *
     * @param  key  the key for the desired string.
     * @return the string for the given key.
     * @throws MissingResourceException if no object for the given key can be found.
     */
    public static String format(final short key) throws MissingResourceException {
        return forLocale(null).getString(key);
    }

    /**
     * Gets a string for the given key and replaces all occurrence of "{0}"
     * with value of {@code arg0}.
     *
     * @param  key   the key for the desired string.
     * @param  arg0  value to substitute to "{0}".
     * @return the formatted string for the given key.
     * @throws MissingResourceException if no object for the given key can be found.
     */
    public static String format(final short  key,
                                final Object arg0) throws MissingResourceException
    {
        return forLocale(null).getString(key, arg0);
    }

    /**
     * Gets a string for the given key and replaces all occurrences of "{0}",
     * "{1}", with values of {@code arg0}, {@code arg1}, etc.
     *
     * @param  key   the key for the desired string.
     * @param  arg0  value to substitute to "{0}".
     * @param  arg1  value to substitute to "{1}".
     * @return the formatted string for the given key.
     * @throws MissingResourceException if no object for the given key can be found.
     */
    public static String format(final short  key,
                                final Object arg0,
                                final Object arg1) throws MissingResourceException
    {
        return forLocale(null).getString(key, arg0, arg1);
    }

    /**
     * The international string to be returned by {@link formatInternational}.
     */
    private static final class International extends ResourceInternationalString {
        private static final long serialVersionUID = 7465539282825054584L;

        International(short key)                           {super(key);}
        International(short key, Object args)              {super(key, args);}
        @Override protected KeyConstants getKeyConstants() {return Resources.Keys.INSTANCE;}
        @Override protected IndexedResourceBundle getBundle(final Locale locale) {
            return forLocale(locale);
        }
    }

    /**
     * Gets an international string for the given key. This method does not check for the key
     * validity. If the key is invalid, then a {@link MissingResourceException} may be thrown
     * when a {@link InternationalString#toString(Locale)} method is invoked.
     *
     * @param  key  the key for the desired string.
     * @return an international string for the given key.
     */
    public static InternationalString formatInternational(final short key) {
        return new International(key);
    }
}
