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/*

 * @test

 * @bug 8131027

 * @summary Test Get FQNs

 * @library /tools/lib

 * @modules jdk.compiler/com.sun.tools.javac.api

 *          jdk.compiler/com.sun.tools.javac.main

 * @build toolbox.ToolBox toolbox.JarTask toolbox.JavacTask

 * @build KullaTesting TestingInputStream Compiler

 * @run testng ComputeFQNsTest

 */

import java.io.Writer;

import java.nio.file.Files;

import java.nio.file.Path;

import java.nio.file.Paths;

import java.util.Arrays;

import jdk.jshell.SourceCodeAnalysis.QualifiedNames;

import static org.testng.Assert.*;

import org.testng.annotations.Test;

@Test

public class ComputeFQNsTest extends KullaTesting {

    private final Compiler compiler = new Compiler();

    private final Path outDir = Paths.get("ComputeFQNsTest");

    public void testAddImport() throws Exception {

        compiler.compile(outDir, "package test1; public class TestClass { }", "package test2; public class TestClass { }");

        String jarName = "test.jar";

        compiler.jar(outDir, jarName, "test1/TestClass.class", "test2/TestClass.class");

        addToClasspath(compiler.getPath(outDir).resolve(jarName));

        assertInferredFQNs("LinkedList", "java.util.LinkedList");

        assertInferredFQNs("ArrayList", "java.util.ArrayList");

        assertInferredFQNs("TestClass", "test1.TestClass", "test2.TestClass");

        assertInferredFQNs("CharSequence", "CharSequence".length(), true, "java.lang.CharSequence");

        assertInferredFQNs("unresolvable");

        assertInferredFQNs("void test(ArrayList", "ArrayList".length(), false, "java.util.ArrayList");

        assertInferredFQNs("void test(ArrayList l) throws InvocationTargetException", "InvocationTargetException".length(), false, "java.lang.reflect.InvocationTargetException");

        assertInferredFQNs("void test(ArrayList l) { ArrayList", "ArrayList".length(), false, "java.util.ArrayList");

        assertInferredFQNs("<T extends ArrayList", "ArrayList".length(), false, "java.util.ArrayList");

        assertInferredFQNs("Object l = Arrays", "Arrays".length(), false, "java.util.Arrays");

        assertInferredFQNs("class X<T extends ArrayList", "ArrayList".length(), false, "java.util.ArrayList");

        assertInferredFQNs("class X extends ArrayList", "ArrayList".length(), false, "java.util.ArrayList");

        assertInferredFQNs("class X extends java.util.ArrayList<TypeElement", "TypeElement".length(), false, "javax.lang.model.element.TypeElement");

        assertInferredFQNs("class X extends java.util.ArrayList<TypeMirror, TypeElement", "TypeElement".length(), false, "javax.lang.model.element.TypeElement");

        assertInferredFQNs("class X implements TypeElement", "TypeElement".length(), false, "javax.lang.model.element.TypeElement");

        assertInferredFQNs("class X implements TypeMirror, TypeElement", "TypeElement".length(), false, "javax.lang.model.element.TypeElement");

        assertInferredFQNs("class X implements java.util.List<TypeElement", "TypeElement".length(), false, "javax.lang.model.element.TypeElement");

        assertInferredFQNs("class X implements java.util.List<TypeMirror, TypeElement", "TypeElement".length(), false, "javax.lang.model.element.TypeElement");

        assertInferredFQNs("class X { ArrayList", "ArrayList".length(), false, "java.util.ArrayList");

    }

    @Test(enabled = false) //TODO 8161165

    public void testSuspendIndexing() throws Throwable {

        compiler.compile(outDir, "package test; public class FQNTest { }");

        String jarName = "test.jar";

        compiler.jar(outDir, jarName, "test/FQNTest.class");

        Path continueMarkFile = outDir.resolve("continuemark").toAbsolutePath();

        Files.createDirectories(continueMarkFile.getParent());

        try (Writer w = Files.newBufferedWriter(continueMarkFile)) {}

        Path runMarkFile = outDir.resolve("runmark").toAbsolutePath();

        Files.deleteIfExists(runMarkFile);

        getState().sourceCodeAnalysis();

        Throwable[] evalException = new Throwable[1];

        new Thread() {

            @Override public void run() {

                try {

                    assertEval("{new java.io.FileOutputStream(\"" + runMarkFile.toAbsolutePath().toString().replace("\\", "\\\\") + "\").close();" +

                               " while (java.nio.file.Files.exists(java.nio.file.Paths.get(\"" + continueMarkFile.toAbsolutePath().toString().replace("\\", "\\\\") + "\"))) Thread.sleep(100); }");

                } catch (Throwable t) {

                    evalException[0] = t;

                }

            }

        }.start();

        while (true) {

            if (Files.exists(runMarkFile))

                break;

            try {

                Thread.sleep(100);

            } catch (Throwable t) {

                if (evalException[0] != null) {

                    evalException[0].addSuppressed(t);

                } else {

                    throw t;

                }

            }

            if (evalException[0] != null) {

                throw evalException[0];

            }

        }

        addToClasspath(compiler.getPath(outDir).resolve(jarName));

        String code = "FQNTest";

        QualifiedNames candidates = getAnalysis().listQualifiedNames(code, code.length());

        assertEquals(candidates.getNames(), Arrays.asList(), "Input: " + code + ", candidates=" + candidates.getNames());

        assertEquals(candidates.isUpToDate(), false, "Input: " + code + ", up-to-date=" + candidates.isUpToDate());

        Files.delete(continueMarkFile);

        waitIndexingFinished();

        candidates = getAnalysis().listQualifiedNames(code, code.length());

        assertEquals(candidates.getNames(), Arrays.asList("test.FQNTest"), "Input: " + code + ", candidates=" + candidates.getNames());

        assertEquals(true, candidates.isUpToDate(), "Input: " + code + ", up-to-date=" + candidates.isUpToDate());

    }

}