/**

 * Back 2 Browser Bytecode Translator

 * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, version 2 of the License.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program. Look for COPYING file in the top folder.

 * If not, see http://opensource.org/licenses/GPL-2.0.

 */

package org.apidesign.bck2brwsr.vmtest.impl;

import java.io.File;

import java.io.FileWriter;

import java.io.IOException;

import java.lang.reflect.Constructor;

import java.lang.reflect.InvocationTargetException;

import java.lang.reflect.Method;

import java.util.Map;

import java.util.WeakHashMap;

import org.apidesign.bck2brwsr.launcher.Launcher;

import org.apidesign.bck2brwsr.launcher.MethodInvocation;

import org.testng.ITest;

import org.testng.annotations.Test;

/**

 *

 * @author Jaroslav Tulach <jtulach@netbeans.org>

 */

public final class Bck2BrwsrCase implements ITest {

    private final Method m;

    private final Launcher l;

    private final String type;

    private final boolean fail;

    Object value;

    private static final Map<Class, Object[]> compiled = new WeakHashMap<>();

    private Object inst;

    Bck2BrwsrCase(Method m, String type, Launcher l, boolean fail) {

        this.l = l;

        this.m = m;

        this.type = type;

        this.fail = fail;

    }

    @Test(groups = "run")

    public void executeCode() throws Throwable {

        if (l != null) {

            MethodInvocation c = l.invokeMethod(m.getDeclaringClass(), m.getName());

            String res = c.toString();

            value = res;

            if (fail) {

                int idx = res.indexOf(':');

                if (idx >= 0) {

                    Class<? extends Throwable> thrwbl = null;

                    try {

                        Class<?> exCls = Class.forName(res.substring(0, idx));

                        if (Throwable.class.isAssignableFrom(exCls)) {

                            thrwbl = exCls.asSubclass(Throwable.class);

                        }

                    } catch (Exception ex) {

                        // ignore

                    }

                    if (thrwbl != null) {

                        Throwable t = null;

                        try {

                            for (Constructor<?> cnstr : thrwbl.getConstructors()) {

                                if (cnstr.getParameterTypes().length == 1 && cnstr.getParameterTypes()[0].isAssignableFrom(String.class)) {

                                    t = (Throwable) cnstr.newInstance(res.substring(idx + 1));

                                    break;

                                }

                            }

                        } catch (Throwable ex) {

                            t = thrwbl.newInstance().initCause(ex);

                        }

                        if (t == null) {

                            t = thrwbl.newInstance().initCause(new Exception(res.substring(idx)));

                        }

                        throw t;

                    }

                    throw new AssertionError(res);

                }

            }

        } else {

            try {

                value = m.invoke(m.getDeclaringClass().newInstance());

            } catch (InvocationTargetException ex) {

                Throwable t = ex.getTargetException();

                value = t.getClass().getName() + ":" + t.getMessage();

            }

        }

    }

    @Override

    public String getTestName() {

        return m.getName() + "[" + typeName() + "]";

    }

    final String typeName() {

        return type;

    }

    static void dumpJS(StringBuilder sb, Bck2BrwsrCase c) throws IOException {

        File f = File.createTempFile(c.m.getName(), ".js");

        try (final FileWriter w = new FileWriter(f)) {

            w.append(c.l.toString());

        }

        sb.append("Path: ").append(f.getPath());

    }

}