/*
 * SPDX-License-Identifier: Apache-2.0
 *
 * The OpenSearch Contributors require contributions made to
 * this file be licensed under the Apache-2.0 license or a
 * compatible open source license.
 */

/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.
 */
/*
 * Modifications Copyright OpenSearch Contributors. See
 * GitHub history for details.
 */

package org.opensearch.common;

import org.opensearch.common.xcontent.LoggingDeprecationHandler;
import org.opensearch.core.ParseField;
import org.opensearch.test.OpenSearchTestCase;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;
import static org.hamcrest.CoreMatchers.sameInstance;
import static org.hamcrest.Matchers.arrayContainingInAnyOrder;

public class ParseFieldTests extends OpenSearchTestCase {
    public void testParse() {
        String name = "foo_bar";
        ParseField field = new ParseField(name);
        String[] deprecated = new String[] { "barFoo", "bar_foo", "Foobar" };
        ParseField withDeprecations = field.withDeprecation(deprecated);
        assertThat(field, not(sameInstance(withDeprecations)));
        assertThat(field.match(name, LoggingDeprecationHandler.INSTANCE), is(true));
        assertThat(field.match("foo bar", LoggingDeprecationHandler.INSTANCE), is(false));
        for (String deprecatedName : deprecated) {
            assertThat(field.match(deprecatedName, LoggingDeprecationHandler.INSTANCE), is(false));
        }

        assertThat(withDeprecations.match(name, LoggingDeprecationHandler.INSTANCE), is(true));
        assertThat(withDeprecations.match("foo bar", LoggingDeprecationHandler.INSTANCE), is(false));
        for (String deprecatedName : deprecated) {
            assertThat(withDeprecations.match(deprecatedName, LoggingDeprecationHandler.INSTANCE), is(true));
            assertWarnings("Deprecated field [" + deprecatedName + "] used, expected [foo_bar] instead");
        }
    }

    public void testAllDeprecated() {
        String name = "like_text";
        String[] deprecated = new String[] { "text", "same_as_text" };
        ParseField field = new ParseField(name).withDeprecation(deprecated).withAllDeprecated("like");
        assertFalse(field.match("not a field name", LoggingDeprecationHandler.INSTANCE));
        assertTrue(field.match("text", LoggingDeprecationHandler.INSTANCE));
        assertWarnings("Deprecated field [text] used, replaced by [like]");
        assertTrue(field.match("same_as_text", LoggingDeprecationHandler.INSTANCE));
        assertWarnings("Deprecated field [same_as_text] used, replaced by [like]");
        assertTrue(field.match("like_text", LoggingDeprecationHandler.INSTANCE));
        assertWarnings("Deprecated field [like_text] used, replaced by [like]");
    }

    public void testDeprecatedWithNoReplacement() {
        String name = "dep";
        String[] alternatives = new String[] { "old_dep", "new_dep" };
        ParseField field = new ParseField(name).withDeprecation(alternatives).withAllDeprecated();
        assertFalse(field.match("not a field name", LoggingDeprecationHandler.INSTANCE));
        assertTrue(field.match("dep", LoggingDeprecationHandler.INSTANCE));
        assertWarnings("Deprecated field [dep] used, this field is unused and will be removed entirely");
        assertTrue(field.match("old_dep", LoggingDeprecationHandler.INSTANCE));
        assertWarnings("Deprecated field [old_dep] used, this field is unused and will be removed entirely");
        assertTrue(field.match("new_dep", LoggingDeprecationHandler.INSTANCE));
        assertWarnings("Deprecated field [new_dep] used, this field is unused and will be removed entirely");

    }

    public void testGetAllNamesIncludedDeprecated() {
        ParseField parseField = new ParseField("terms", "in");
        assertThat(parseField.getAllNamesIncludedDeprecated(), arrayContainingInAnyOrder("terms", "in"));

        parseField = new ParseField("more_like_this", "mlt");
        assertThat(parseField.getAllNamesIncludedDeprecated(), arrayContainingInAnyOrder("more_like_this", "mlt"));
    }
}
