/*
 * 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
 *
 *   https://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.
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 *   SPDX-License-Identifier: Apache-2.0
 */

package org.apache.jena.arq.querybuilder.updatebuilder;

import static org.junit.jupiter.api.Assertions.assertEquals;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.junit.jupiter.api.Test;

import org.apache.jena.arq.querybuilder.WhereBuilder;
import org.apache.jena.graph.Node;
import org.apache.jena.graph.NodeFactory;
import org.apache.jena.graph.Triple;
import org.apache.jena.sparql.core.Quad;
import org.apache.jena.sparql.core.Var;

public class QBQuadHolderTest {

    private QBQuadHolder holder;

    @Test
    public void anonymousTest() {
        WhereBuilder builder = new WhereBuilder();

        List<Triple> tLst = new ArrayList<Triple>();
        Node s = NodeFactory.createURI("s");
        Node p = NodeFactory.createURI("p");
        Node o = NodeFactory.createURI("o");
        tLst.add(Triple.create(s, p, o));
        builder.addWhere(s, p, o);

        Node s2 = NodeFactory.createURI("s2");
        Node p2 = NodeFactory.createURI("p2");
        Node o2 = NodeFactory.createURI("o2");
        tLst.add(Triple.create(s2, p2, o2));
        builder.addWhere(s2, p2, o2);

        holder = new QBQuadHolder(builder);

        List<Quad> lst = holder.getQuads().toList();
        assertEquals(2, lst.size());
        assertEquals(Quad.create(Quad.defaultGraphNodeGenerated, tLst.get(0)), lst.get(0));
        assertEquals(Quad.create(Quad.defaultGraphNodeGenerated, tLst.get(1)), lst.get(1));
    }

    @Test
    public void anonymousTest_Var() {
        WhereBuilder builder = new WhereBuilder();

        List<Triple> tLst = new ArrayList<Triple>();
        Node s = NodeFactory.createURI("s");
        Node p = NodeFactory.createVariable("p");
        Node o = NodeFactory.createURI("o");
        builder.addWhere(s, p, o);

        Node s2 = NodeFactory.createURI("s2");
        Node p2 = NodeFactory.createURI("p2");
        Node o2 = NodeFactory.createURI("o2");
        tLst.add(Triple.create(s, p2, o));
        tLst.add(Triple.create(s2, p2, o2));
        builder.addWhere(s2, p, o2);

        holder = new QBQuadHolder(builder);

        Map<Var, Node> map = new HashMap<>();
        map.put(Var.alloc(p), p2);
        holder.setValues(map);

        List<Quad> lst = holder.getQuads().toList();
        assertEquals(2, lst.size());
        assertEquals(Quad.create(Quad.defaultGraphNodeGenerated, tLst.get(0)), lst.get(0));
        assertEquals(Quad.create(Quad.defaultGraphNodeGenerated, tLst.get(1)), lst.get(1));
    }

    @Test
    public void namedTest() {
        WhereBuilder builder = new WhereBuilder();

        Node g = NodeFactory.createURI("g");

        List<Triple> tLst = new ArrayList<Triple>();
        Node s = NodeFactory.createURI("s");
        Node p = NodeFactory.createURI("p");
        Node o = NodeFactory.createURI("o");
        tLst.add(Triple.create(s, p, o));
        builder.addGraph(g, s, p, o);

        Node s2 = NodeFactory.createURI("s2");
        Node p2 = NodeFactory.createURI("p2");
        Node o2 = NodeFactory.createURI("o2");
        tLst.add(Triple.create(s2, p2, o2));

        builder.addGraph(g, s2, p2, o2);

        holder = new QBQuadHolder(builder);

        List<Quad> lst = holder.getQuads().toList();
        assertEquals(2, lst.size());
        assertEquals(Quad.create(g, tLst.get(0)), lst.get(0));
        assertEquals(Quad.create(g, tLst.get(1)), lst.get(1));
    }

    @Test
    public void namedTest_Var() {
        WhereBuilder builder = new WhereBuilder();

        Node g = NodeFactory.createURI("g");

        List<Triple> tLst = new ArrayList<Triple>();
        Node s = NodeFactory.createURI("s");
        Node p = NodeFactory.createVariable("p");
        Node o = NodeFactory.createURI("o");
        builder.addGraph(g, s, p, o);

        Node s2 = NodeFactory.createURI("s2");
        Node p2 = NodeFactory.createURI("p2");
        Node o2 = NodeFactory.createURI("o2");
        tLst.add(Triple.create(s, p2, o));
        tLst.add(Triple.create(s2, p2, o2));

        builder.addGraph(g, s2, p, o2);

        holder = new QBQuadHolder(builder);

        Map<Var, Node> map = new HashMap<>();
        map.put(Var.alloc(p), p2);
        holder.setValues(map);

        List<Quad> lst = holder.getQuads().toList();
        assertEquals(2, lst.size());
        assertEquals(Quad.create(g, tLst.get(0)), lst.get(0));
        assertEquals(Quad.create(g, tLst.get(1)), lst.get(1));
    }

    @Test
    public void mixedTest() {
        WhereBuilder builder = new WhereBuilder();

        List<Triple> tLst = new ArrayList<Triple>();
        Node s = NodeFactory.createURI("s");
        Node p = NodeFactory.createURI("p");
        Node o = NodeFactory.createURI("o");
        tLst.add(Triple.create(s, p, o));
        builder.addWhere(s, p, o);

        Node g = NodeFactory.createURI("g");
        Node s2 = NodeFactory.createURI("s2");
        Node p2 = NodeFactory.createURI("p2");
        Node o2 = NodeFactory.createURI("o2");
        tLst.add(Triple.create(s2, p2, o2));

        builder.addGraph(g, s2, p2, o2);

        holder = new QBQuadHolder(builder);

        List<Quad> lst = holder.getQuads().toList();
        assertEquals(2, lst.size());
        assertEquals(Quad.create(Quad.defaultGraphNodeGenerated, tLst.get(0)), lst.get(0));
        assertEquals(Quad.create(g, tLst.get(1)), lst.get(1));
    }

    @Test
    public void mixedTest_Var() {
        WhereBuilder builder = new WhereBuilder();

        List<Triple> tLst = new ArrayList<Triple>();
        Node s = NodeFactory.createURI("s");
        Node p = NodeFactory.createVariable("p");
        Node o = NodeFactory.createURI("o");
        builder.addWhere(s, p, o);

        Node g = NodeFactory.createURI("g");
        Node s2 = NodeFactory.createURI("s2");
        Node p2 = NodeFactory.createURI("p2");
        Node o2 = NodeFactory.createURI("o2");
        tLst.add(Triple.create(s, p2, o));
        tLst.add(Triple.create(s2, p2, o2));

        builder.addGraph(g, s2, p, o2);

        holder = new QBQuadHolder(builder);

        Map<Var, Node> map = new HashMap<>();
        map.put(Var.alloc(p), p2);
        holder.setValues(map);

        List<Quad> lst = holder.getQuads().toList();
        assertEquals(2, lst.size());
        assertEquals(Quad.create(Quad.defaultGraphNodeGenerated, tLst.get(0)), lst.get(0));
        assertEquals(Quad.create(g, tLst.get(1)), lst.get(1));
    }
}
