/*
 * Copyright 2000-2020 JetBrains s.r.o.
 *
 * Licensed 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 jetbrains.teamcity.ui.actions;

import jetbrains.buildServer.util.StringUtil;
import jetbrains.teamcity.Activator;
import jetbrains.teamcity.Constants.Preferences;
import jetbrains.teamcity.SharedImages;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.browser.IWebBrowser;
import org.eclipse.ui.browser.IWorkbenchBrowserSupport;

import java.lang.reflect.InvocationTargetException;
import java.net.MalformedURLException;
import java.net.URL;

public abstract class OpenURLAction extends Action {

    private static IWebBrowser ourBrowser;
    private static String ourBrowserType;

    public OpenURLAction() {
        setImageDescriptor(SharedImages.getImageDescriptorByPath(SharedImages.WEB_BROWSER_IMG));
    }

    public OpenURLAction(String name) {
        this();
        setText(name);
    }

    @Override
    public void run() {
        String url = getURL();
        if (url != null) {
            URL httpURL;
            try {
                httpURL = new URL(url);
            } catch (MalformedURLException e1) {
                return;
            }
            final URL toOpen = httpURL;
            final IRunnableWithProgress runnable = new IRunnableWithProgress() {
                public void run(IProgressMonitor monitor) {
                    if (monitor == null) {
                        monitor = new NullProgressMonitor();
                    }
                    monitor.beginTask(Messages.getString("OpenURLAction.task.name"), IProgressMonitor.UNKNOWN); //$NON-NLS-1$
                    try {
                        final String option = Activator.getDefault().getPreferenceStore().getString(Preferences.BROWSER_OPTION);
                        if (ourBrowser != null && StringUtil.emptyIfNull(ourBrowserType).equals(option)) {
                            ourBrowser.openURL(toOpen);
                        } else {
                            IWorkbenchBrowserSupport support = PlatformUI.getWorkbench().getBrowserSupport();
                            if (support != null) {
                                if (Preferences.BROWSER_EXTERNAL.equals(option)) {
                                    ourBrowser = support.getExternalBrowser();
                                } else if (Preferences.BROWSER_INTERNAL.equals(option)) {
                                    ourBrowser = support.createBrowser(IWorkbenchBrowserSupport.AS_EDITOR | IWorkbenchBrowserSupport.STATUS
                                            | IWorkbenchBrowserSupport.NAVIGATION_BAR, getURL(), null, null);
                                } else {
                                    ourBrowser = support.createBrowser(IWorkbenchBrowserSupport.AS_EDITOR | IWorkbenchBrowserSupport.STATUS
                                            | IWorkbenchBrowserSupport.NAVIGATION_BAR, getURL(), null, null);
                                }
                                ourBrowserType = option;
                                ourBrowser.openURL(toOpen);
                            }
                        }
                    } catch (PartInitException ignored) {
                    } finally {
                        monitor.done();
                    }
                }
            };
            Display.getCurrent().asyncExec(new Runnable() {
                public void run() {
                    try {
                        runnable.run(new NullProgressMonitor());
                    } catch (InvocationTargetException ignored) {
                    } catch (InterruptedException ignored) {
                    }
                }
            });
        }
    }

    protected abstract String getURL();
}