package org.simantics.gnuplot.tests;

import java.io.IOException;
import java.net.URL;
import java.net.URLDecoder;
import java.nio.file.Path;
import java.nio.file.Paths;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.simantics.gnuplot.Gnuplot;
import org.simantics.gnuplot.GnuplotSession;

public class GnuplotTest {

    private Path dataPath;
    private Path plot;
    private Path stdout;
    private Path stderr;
    private Path stdout2;
    private Path stderr2;

    private Path getDir() throws IOException {
        URL path = getClass().getResource(".");
        // Avoid the beginning '/'
        String p = path.getPath().substring(1);
        String dp = URLDecoder.decode(p, "UTF-8");
        return Paths.get(dp).toAbsolutePath();
    }

    @Before
    public void before() throws IOException {
        dataPath = getDir();
        plot = dataPath.resolve("hexagons.plt");
        stdout = dataPath.resolve("hexagons.svg");
        stderr = dataPath.resolve("hexagons.stderr.txt");
        stdout2 = dataPath.resolve("hexagons2.svg");
        stderr2 = dataPath.resolve("hexagons2.stderr.txt");
    }

    @After
    public void after() {
    }

    @Test
    public void testGnuplot() throws IOException {
        Gnuplot.detect().execute(dataPath, stdout, stderr, plot);
    }

    @Test
    public void testGnuplotSession() throws IOException {
        try (GnuplotSession session = Gnuplot.detect().newSession(dataPath, stdout2, stderr2)) {
            session.evaluateFile(plot);
        }
    }

}