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/**

 * @test

 * @bug 8155026

 * @summary Test automatic modules

 * @library /tools/lib

 * @modules

 *      java.desktop

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

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

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

 * @run main AutomaticModules

 */

import java.nio.file.Files;

import java.nio.file.Path;

import java.util.Arrays;

import java.util.List;

import toolbox.JarTask;

import toolbox.JavacTask;

import toolbox.Task;

public class AutomaticModules extends ModuleTestBase {

    public static void main(String... args) throws Exception {

        AutomaticModules t = new AutomaticModules();

        t.runTests();

    }

    @Test

    public void testSimple(Path base) throws Exception {

        Path legacySrc = base.resolve("legacy-src");

        tb.writeJavaFiles(legacySrc,

                          "package api; import java.awt.event.ActionListener; public abstract class Api implements ActionListener {}");

        Path legacyClasses = base.resolve("legacy-classes");

        Files.createDirectories(legacyClasses);

        String log = new JavacTask(tb)

                .options()

                .outdir(legacyClasses)

                .files(findJavaFiles(legacySrc))

                .run()

                .writeAll()

                .getOutput(Task.OutputKind.DIRECT);

        if (!log.isEmpty()) {

            throw new Exception("unexpected output: " + log);

        }

        Path modulePath = base.resolve("module-path");

        Files.createDirectories(modulePath);

        Path jar = modulePath.resolve("test-api-1.0.jar");

        new JarTask(tb, jar)

          .baseDir(legacyClasses)

          .files("api/Api.class")

          .run();

        Path moduleSrc = base.resolve("module-src");

        Path m1 = moduleSrc.resolve("m1");

        Path classes = base.resolve("classes");

        Files.createDirectories(classes);

        tb.writeJavaFiles(m1,

                          "module m1 { requires test.api; requires java.desktop; }",

                          "package impl; public class Impl { public void e(api.Api api) { api.actionPerformed(null); } }");

        new JavacTask(tb)

                .options("--module-source-path", moduleSrc.toString(), "--module-path", modulePath.toString())

                .outdir(classes)

                .files(findJavaFiles(moduleSrc))

                .run()

                .writeAll();

    }

    @Test

    public void testUnnamedModule(Path base) throws Exception {

        Path legacySrc = base.resolve("legacy-src");

        tb.writeJavaFiles(legacySrc,

                          "package api; public abstract class Api { public void run(CharSequence str) { } private void run(base.Base base) { } }",

                          "package base; public interface Base { public void run(); }");

        Path legacyClasses = base.resolve("legacy-classes");

        Files.createDirectories(legacyClasses);

        String log = new JavacTask(tb)

                .options()

                .outdir(legacyClasses)

                .files(findJavaFiles(legacySrc))

                .run()

                .writeAll()

                .getOutput(Task.OutputKind.DIRECT);

        if (!log.isEmpty()) {

            throw new Exception("unexpected output: " + log);

        }

        Path modulePath = base.resolve("module-path");

        Files.createDirectories(modulePath);

        Path apiJar = modulePath.resolve("test-api-1.0.jar");

        new JarTask(tb, apiJar)

          .baseDir(legacyClasses)

          .files("api/Api.class")

          .run();

        Path baseJar = base.resolve("base.jar");

        new JarTask(tb, baseJar)

          .baseDir(legacyClasses)

          .files("base/Base.class")

          .run();

        Path moduleSrc = base.resolve("module-src");

        Path m1 = moduleSrc.resolve("m1");

        Path classes = base.resolve("classes");

        Files.createDirectories(classes);

        tb.writeJavaFiles(m1,

                          "module m1 { requires test.api; }",

                          "package impl; public class Impl { public void e(api.Api api) { api.run(\"\"); } }");

        new JavacTask(tb)

                .options("--module-source-path", moduleSrc.toString(), "--module-path", modulePath.toString(), "--class-path", baseJar.toString())

                .outdir(classes)

                .files(findJavaFiles(moduleSrc))

                .run()

                .writeAll();

    }

    @Test

    public void testModuleInfoFromClassFileDependsOnAutomatic(Path base) throws Exception {

        Path automaticSrc = base.resolve("automaticSrc");

        tb.writeJavaFiles(automaticSrc, "package api; public class Api {}");

        Path automaticClasses = base.resolve("automaticClasses");

        tb.createDirectories(automaticClasses);

        String automaticLog = new JavacTask(tb)

                                .outdir(automaticClasses)

                                .files(findJavaFiles(automaticSrc))

                                .run()

                                .writeAll()

                                .getOutput(Task.OutputKind.DIRECT);

        if (!automaticLog.isEmpty())

            throw new Exception("expected output not found: " + automaticLog);

        Path modulePath = base.resolve("module-path");

        Files.createDirectories(modulePath);

        Path automaticJar = modulePath.resolve("automatic-1.0.jar");

        new JarTask(tb, automaticJar)

          .baseDir(automaticClasses)

          .files("api/Api.class")

          .run();

        Path depSrc = base.resolve("depSrc");

        Path depClasses = base.resolve("depClasses");

        Files.createDirectories(depSrc);

        Files.createDirectories(depClasses);

        tb.writeJavaFiles(depSrc,

                          "module m1 { requires public automatic; }",

                          "package dep; public class Dep { api.Api api; }");

        new JavacTask(tb)

                .options("--module-path", modulePath.toString())

                .outdir(depClasses)

                .files(findJavaFiles(depSrc))

                .run()

                .writeAll();

        Path moduleJar = modulePath.resolve("m1.jar");

        new JarTask(tb, moduleJar)

          .baseDir(depClasses)

          .files("module-info.class", "dep/Dep.class")

          .run();

        Path testSrc = base.resolve("testSrc");

        Path testClasses = base.resolve("testClasses");

        Files.createDirectories(testSrc);

        Files.createDirectories(testClasses);

        tb.writeJavaFiles(testSrc,

                          "module m2 { requires automatic; }",

                          "package test; public class Test { }");

        new JavacTask(tb)

                .options("--module-path", modulePath.toString())

                .outdir(testClasses)

                .files(findJavaFiles(testSrc))

                .run()

                .writeAll();

    }

    @Test

    public void testAutomaticAndNamedModules(Path base) throws Exception {

        Path modulePath = base.resolve("module-path");

        Files.createDirectories(modulePath);

        for (char c : new char[] {'A', 'B'}) {

            Path automaticSrc = base.resolve("automaticSrc" + c);

            tb.writeJavaFiles(automaticSrc, "package api" + c + "; public class Api {}");

            Path automaticClasses = base.resolve("automaticClasses" + c);

            tb.createDirectories(automaticClasses);

            String automaticLog = new JavacTask(tb)

                                    .outdir(automaticClasses)

                                    .files(findJavaFiles(automaticSrc))

                                    .run()

                                    .writeAll()

                                    .getOutput(Task.OutputKind.DIRECT);

            if (!automaticLog.isEmpty())

                throw new Exception("expected output not found: " + automaticLog);

            Path automaticJar = modulePath.resolve("automatic" + c + "-1.0.jar");

            new JarTask(tb, automaticJar)

              .baseDir(automaticClasses)

              .files("api" + c + "/Api.class")

              .run();

        }

        Path moduleSrc = base.resolve("module-src");

        tb.writeJavaFiles(moduleSrc.resolve("m1"),

                          "module m1 { requires automaticA; }",

                          "package impl; public class Impl { apiA.Api a; apiB.Api b; m2.M2 m;}");

        tb.writeJavaFiles(moduleSrc.resolve("m2"),

                          "module m2 { exports m2; }",

                          "package m2; public class M2 { }");

        Path classes = base.resolve("classes");

        Files.createDirectories(classes);

        List<String> log = new JavacTask(tb)

                .options("--module-source-path", moduleSrc.toString(),

                         "--module-path", modulePath.toString(),

                         "--add-modules", "automaticB",

                         "-XDrawDiagnostics")

                .outdir(classes)

                .files(findJavaFiles(moduleSrc))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.OutputKind.DIRECT);

                                              "1 error");

        if (!expected.equals(log)) {

            throw new Exception("expected output not found: " + log);

        }

        log = new JavacTask(tb)

                .options("--module-source-path", moduleSrc.toString(),

                         "--module-path", modulePath.toString(),

                         "-XDrawDiagnostics")

                .outdir(classes)

                .files(findJavaFiles(moduleSrc))

                .run(Task.Expect.FAIL)

                .writeAll()

                .getOutputLines(Task.OutputKind.DIRECT);

                                 "2 errors");

        if (!expected.equals(log)) {

            throw new Exception("expected output not found: " + log);

        }

    }

}