/*
 * 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.script;

import org.opensearch.core.common.bytes.BytesArray;
import org.opensearch.common.settings.Settings;
import org.opensearch.common.xcontent.XContentType;
import org.opensearch.plugins.Plugin;
import org.opensearch.test.OpenSearchIntegTestCase;

import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import java.util.function.Function;

import static org.opensearch.test.hamcrest.OpenSearchAssertions.assertAcked;

public class StoredScriptsIT extends OpenSearchIntegTestCase {

    private static final int SCRIPT_MAX_SIZE_IN_BYTES = 64;
    private static final String LANG = MockScriptEngine.NAME;

    @Override
    protected Settings nodeSettings(int nodeOrdinal) {
        return Settings.builder()
            .put(super.nodeSettings(nodeOrdinal))
            .put(ScriptService.SCRIPT_MAX_SIZE_IN_BYTES.getKey(), SCRIPT_MAX_SIZE_IN_BYTES)
            .build();
    }

    @Override
    protected Collection<Class<? extends Plugin>> nodePlugins() {
        return Arrays.asList(CustomScriptPlugin.class);
    }

    public void testBasics() {
        assertAcked(
            client().admin()
                .cluster()
                .preparePutStoredScript()
                .setId("foobar")
                .setContent(new BytesArray("{\"script\": {\"lang\": \"" + LANG + "\", \"source\": \"1\"} }"), XContentType.JSON)
        );
        String script = client().admin().cluster().prepareGetStoredScript("foobar").get().getSource().getSource();
        assertNotNull(script);
        assertEquals("1", script);

        assertAcked(client().admin().cluster().prepareDeleteStoredScript().setId("foobar"));
        StoredScriptSource source = client().admin().cluster().prepareGetStoredScript("foobar").get().getSource();
        assertNull(source);

        IllegalArgumentException e = expectThrows(
            IllegalArgumentException.class,
            () -> client().admin().cluster().preparePutStoredScript().setId("id#").setContent(new BytesArray("{}"), XContentType.JSON).get()
        );
        assertEquals("Validation Failed: 1: id cannot contain '#' for stored script;", e.getMessage());
    }

    public void testMaxScriptSize() {
        IllegalArgumentException e = expectThrows(
            IllegalArgumentException.class,
            () -> client().admin()
                .cluster()
                .preparePutStoredScript()
                .setId("foobar")
                .setContent(
                    new BytesArray("{\"script\": { \"lang\": \"" + LANG + "\"," + " \"source\":\"0123456789abcdef\"} }"),
                    XContentType.JSON
                )
                .get()
        );
        assertEquals("exceeded max allowed stored script size in bytes [64] with size [65] for script [foobar]", e.getMessage());
    }

    public static class CustomScriptPlugin extends MockScriptPlugin {

        @Override
        protected Map<String, Function<Map<String, Object>, Object>> pluginScripts() {
            return Collections.singletonMap("1", script -> "1");
        }
    }
}