/*
 *  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.tinkerpop.gremlin.groovy.jsr223;

import org.apache.tinkerpop.gremlin.GraphProvider;
import org.apache.tinkerpop.gremlin.TestHelper;
import org.apache.tinkerpop.gremlin.process.computer.Computer;
import org.apache.tinkerpop.gremlin.structure.RemoteGraph;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
import org.apache.tinkerpop.gremlin.structure.Graph;
import org.apache.tinkerpop.gremlin.tinkergraph.process.computer.TinkerGraphComputer;

/**
 * @author Marko A. Rodriguez (http://markorodriguez.com)
 */
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.map.AddEdgeTest",
        method = "*",
        reason = "The addEdge() step is not supported by GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.branch.ChooseTest",
        method = "g_injectX1X_chooseXisX1X__constantX10Xfold__foldX",
        reason = "The inject() step is not supported by GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.branch.ChooseTest",
        method = "g_injectX2X_chooseXisX1X__constantX10Xfold__foldX",
        reason = "The inject() step is not supported by GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.map.GraphTest",
        method = "g_V_hasLabelXpersonX_asXpX_VXsoftwareX_addInEXuses_pX",
        reason = "Mid-traversal V()/E() is currently not supported on GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.map.GraphTest",
        method = "g_V_hasXname_GarciaX_inXsungByX_asXsongX_V_hasXname_Willie_DixonX_inXwrittenByX_whereXeqXsongXX_name",
        reason = "Mid-traversal V()/E() is currently not supported on GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.map.GraphTest",
        method = "g_V_outXknowsX_V_name",
        reason = "Mid-traversal V()/E() is currently not supported on GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.map.GraphTest",
        method = "g_VX1X_V_valuesXnameX",
        reason = "Mid-traversal V()/E() is currently not supported on GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.InjectTest",
        method = "g_VX1X_injectXg_VX4XX_out_name",
        reason = "The inject() step is not supported by GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.InjectTest",
        method = "g_VX1X_out_injectXv2X_name",
        reason = "The inject() step is not supported by GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.map.MathTest",
        method = "g_withSackX1X_injectX1X_repeatXsackXsumX_byXconstantX1XXX_timesX5X_emit_mathXsin__X_byXsackX",
        reason = "The inject() step is not supported by GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.map.MinTest",
        method = "g_V_foo_injectX9999999999X_min",
        reason = "The inject() step is not supported by GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.branch.OptionalTest",
        method = "g_VX1X_optionalXaddVXdogXX_label",
        reason = "The addV() step is not supported on GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.filter.SimplePathTest",
        method = "g_V_asXaX_out_asXbX_out_asXcX_simplePath_byXlabelX_fromXbX_toXcX_path_byXnameX",
        reason = "It is not possible to access more than a path element's id on GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.map.VertexTest",
        method = "g_V_hasLabelXpersonX_V_hasLabelXsoftwareX_name",
        reason = "Mid-traversal V()/E() is currently not supported on GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.SackTest",
        method = "g_withBulkXfalseX_withSackX1_sumX_V_out_barrier_sack",
        reason = "One bulk is currently not supported on GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect.SackTest",
        method = "g_withBulkXfalseX_withSackX1_sumX_VX1X_localXoutEXknowsX_barrierXnormSackX_inVX_inXknowsX_barrier_sack",
        reason = "One bulk is currently not supported on GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.map.PropertiesTest",
        method = "g_injectXg_VX1X_propertiesXnameX_nextX_value",
        reason = "Needs investigation")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.map.ReadTest",
        method = "*",
        reason = "The io() step is not supported generally by GraphComputer")
@Graph.OptOut(
        test = "org.apache.tinkerpop.gremlin.process.traversal.step.map.WriteTest",
        method = "*",
        reason = "The io() step is not supported generally by GraphComputer")
@GraphProvider.Descriptor(computer = TinkerGraphComputer.class)
public class GryoRemoteGraphGroovyTranslatorComputerProvider extends GryoRemoteGraphGroovyTranslatorProvider {
    private final int AVAILABLE_PROCESSORS = Runtime.getRuntime().availableProcessors();

    @Override
    public GraphTraversalSource traversal(final Graph graph) {
        assert graph instanceof RemoteGraph;
        final int state = TestHelper.RANDOM.nextInt(3);
        switch (state) {
            case 0:
                return super.traversal(graph).withComputer();
            case 1:
                return super.traversal(graph).withComputer(Computer.compute(TinkerGraphComputer.class));
            case 2:
                return super.traversal(graph).withComputer(Computer.compute(TinkerGraphComputer.class).workers(TestHelper.RANDOM.nextInt(AVAILABLE_PROCESSORS) + 1));
            default:
                throw new IllegalStateException("This state should not have occurred: " + state);
        }
    }
}
