/*
 * 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.jena.riot.stream;

import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;

import java.io.File;

import org.junit.jupiter.api.AfterAll;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;

import org.apache.jena.atlas.io.IO;
import org.apache.jena.atlas.web.TypedInputStream;
import org.apache.jena.rdf.model.Model;
import org.apache.jena.rdf.model.ModelFactory;
import org.apache.jena.riot.RDFDataMgr;
import org.apache.jena.riot.RiotNotFoundException;
import org.apache.jena.riot.SysRIOT;
import org.apache.jena.riot.system.stream.LocatorFile;
import org.apache.jena.riot.system.stream.LocatorHTTP;
import org.apache.jena.riot.system.stream.StreamManager;
import org.apache.jena.sparql.util.Context;

public class TestStreamManager
{
    private static final String directory = "testing/RIOT/StreamManager";
    private static final String absDirectory = new File(directory).getAbsolutePath();

    private static StreamManager streamMgrDir;
    private static StreamManager streamMgrHere;
    private static StreamManager streamMgrNull;
    private static StreamManager streamMgrStd;

    @BeforeAll static public void beforeClass()
    {
        streamMgrStd = StreamManager.get();
        streamMgrDir = new StreamManager();
        // Not current directory.
        streamMgrDir.addLocator(new LocatorFile(directory));
        streamMgrDir.addLocator(new LocatorHTTP());

        streamMgrHere = new StreamManager();
        // Not current directory.
        streamMgrHere.addLocator(new LocatorFile());
        streamMgrHere.addLocator(new LocatorHTTP());

        streamMgrNull = new StreamManager();
    }

    @AfterAll static public void afterClass()
    {
        StreamManager.setGlobal(streamMgrStd);
    }

    private static Context context(StreamManager streamMgr)
    {
        Context context = new Context();
        context.put(SysRIOT.sysStreamManager, streamMgr);
        return context;
    }

    @Test public void fm_open_01()  { open(streamMgrNull, directory+"/D.ttl", context(streamMgrHere)); }
    @Test public void fm_open_02()  { open(streamMgrHere, directory+"/D.ttl", null); }

    @Test public void fm_open_03()  { open(streamMgrNull,  "D.ttl", context(streamMgrDir)); }
    @Test public void fm_open_04()  { open(streamMgrDir, "D.ttl", null); }

    @Test public void fm_open_05()  { open(streamMgrHere, "file:"+directory+"/D.ttl", context(streamMgrHere)); }
    @Test public void fm_open_06()  { open(streamMgrHere, "file:"+directory+"/D.ttl", null); }

    @Test public void fm_open_07()  { open(streamMgrHere, "file:D.ttl", context(streamMgrDir)); }
    @Test public void fm_open_08()  { open(streamMgrDir, "file:D.ttl", null); }

    @Test public void fm_open_09()  { open(streamMgrHere, absDirectory+"/D.ttl", null); }
    @Test public void fm_open_10()  { open(streamMgrDir,  absDirectory+"/D.ttl", null); }
    @Test public void fm_open_11()  { open(streamMgrDir,  "file://"+absDirectory+"/D.ttl", null); }
    @Test public void fm_open_12()  { open(streamMgrHere, "file://"+absDirectory+"/D.ttl", null); }

    @Test
    public void fm_open_20() {
        assertThrows(RiotNotFoundException.class, ()->
            open(null, "nosuchfile", context(streamMgrDir))
        );
    }

    @Test
    public void fm_open_21() {
        assertThrows(RiotNotFoundException.class, ()->
            open(streamMgrHere, "nosuchfile", null)
        );
    }

    @Test public void fm_read_01()  { read("D.nt"); }
    @Test public void fm_read_02()  { read("D.ttl"); }
    @Test public void fm_read_03()  { read("D.rdf"); }
    @Test public void fm_read_04()  { read("D.rj"); }
    @Test public void fm_read_05()  { read("D.jsonld"); }

    @Test public void fm_read_11()  { read("file:D.nt"); }
    @Test public void fm_read_12()  { read("file:D.ttl"); }
    @Test public void fm_read_13()  { read("file:D.rdf"); }
    @Test public void fm_read_14()  { read("file:D.rj"); }
    @Test public void fm_read_15()  { read("file:D.jsonld"); }

    // TriG
    // NQuads

    private static void open(StreamManager streamMgr, String dataName, Context context)
    {
        StreamManager.setGlobal(streamMgr);
        try {
            TypedInputStream in = RDFDataMgr.open(dataName, StreamManager.get(context));
            assertNotNull(in);
            IO.close(in);
        } finally {
            StreamManager.setGlobal(streamMgrStd);
        }
    }

    private static void read(String dataName)
    {
        try {
            StreamManager.setGlobal(streamMgrDir);
            Model m = ModelFactory.createDefaultModel();
            RDFDataMgr.read(m, dataName);
            assertNotEquals(0, m.size(),()->"Read "+dataName);
        } finally {
            StreamManager.setGlobal(streamMgrStd);
        }
    }
}

