/*******************************************************************************

 * Copyright (c) 2010 Symbian Foundation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Symbian Foundation - initial contribution.

 * Contributors:

 * Description:

 * Overview:

 * Details:

 * Platforms/Drives/Compatibility:

 * Assumptions/Requirement/Pre-requisites:

 * Failures and causes:

 *******************************************************************************/

package org.symbian.tools.tmw.debug.internal.launch;

import java.util.ArrayList;

import java.util.Collection;

import org.chromium.debug.core.model.BreakpointSynchronizer.Callback;

import org.chromium.debug.core.model.BreakpointSynchronizer.Direction;

import org.chromium.debug.core.model.ChromiumLineBreakpoint;

import org.chromium.debug.core.model.DebugTargetImpl;

import org.chromium.debug.core.model.VmResource;

import org.chromium.debug.core.model.VmResourceId;

import org.chromium.debug.core.model.WorkspaceBridge;

import org.chromium.sdk.CallFrame;

import org.chromium.sdk.JavascriptVm;

import org.chromium.sdk.JavascriptVm.ScriptsCallback;

import org.chromium.sdk.Script;

import org.eclipse.core.resources.IFile;

import org.eclipse.core.resources.IMarker;

import org.eclipse.core.resources.IProject;

import org.eclipse.core.resources.IResource;

import org.eclipse.core.runtime.CoreException;

import org.eclipse.debug.core.DebugPlugin;

import org.eclipse.debug.core.ILaunch;

import org.eclipse.debug.core.sourcelookup.ISourceContainer;

import org.eclipse.debug.core.sourcelookup.ISourceLookupDirector;

import org.eclipse.debug.core.sourcelookup.containers.DirectorySourceContainer;

import org.eclipse.debug.core.sourcelookup.containers.ProjectSourceContainer;

import org.symbian.tools.tmw.debug.internal.Activator;

import org.symbian.tools.tmw.debug.internal.model.ResourceManager;

import org.symbian.tools.tmw.debug.internal.model.WorkspaceBreakpointHandler;

public class ChromeToolsWorkspaceBridge implements WorkspaceBridge {

    public static final class Factory implements WorkspaceBridge.Factory {

        private final IProject project;

        public Factory(IProject workspaceProject) {

            this.project = workspaceProject;

        }

        public WorkspaceBridge attachedToVm(DebugTargetImpl debugTargetImpl, JavascriptVm javascriptVm) {

            return new ChromeToolsWorkspaceBridge(debugTargetImpl, javascriptVm, project);

        }

        public String getDebugModelIdentifier() {

            return DEBUG_MODEL_ID;

        }

        public JsLabelProvider getLabelProvider() {

            return new TmwLabelProvider();

        }

    }

    public static final String DEBUG_MODEL_ID = "org.symbian.debug";

    private final BreakpointHandler breakpointHandler;

    private final JavascriptVm javascriptVm;

    private final IProject project;

    private final ResourceManager resourceManager;

    public ChromeToolsWorkspaceBridge(DebugTargetImpl debugTargetImpl, JavascriptVm vm, IProject workspaceProject) {

        this.javascriptVm = vm;

        this.project = workspaceProject;

        this.resourceManager = new ResourceManager();

        this.sourceLocator = new WebApplicationSourceLocator(resourceManager);

        breakpointHandler = new WorkspaceBreakpointHandler(debugTargetImpl);

        ILaunch launch = debugTargetImpl.getLaunch();

        try {

            sourceLocator.initializeDefaults(launch.getLaunchConfiguration());

            sourceLocator.setSourceContainers(new ISourceContainer[] {

                    new ProjectSourceContainer(workspaceProject, false),

                    new DirectorySourceContainer(Activator.getDefault().getStateLocation(), true) });

        } catch (CoreException e) {

            throw new RuntimeException(e);

        }

        launch.setSourceLocator(sourceLocator);

    }

    public void beforeDetach() {

        // Do nothing

    }

    public BreakpointHandler getBreakpointHandler() {

        return breakpointHandler;

    }

    public void handleVmResetEvent() {

        resourceManager.clear();

    }

    public void launchRemoved() {

        // Do nothing

    }

    public void reloadScriptsAtStart() {

        javascriptVm.getScripts(new ScriptsCallback() {

            public void failure(String errorMessage) {

                Activator.log(errorMessage);

            }

            public void success(Collection<Script> scripts) {

                if (!javascriptVm.isAttached()) {

                    return;

                }

                for (Script script : scripts) {

                    resourceManager.addScript(script);

                }

                IMarker[] markers;

                try {

                    markers = project.findMarkers(ChromiumLineBreakpoint.BREAKPOINT_MARKER, true,

                            IResource.DEPTH_INFINITE);

                    Collection<ChromiumLineBreakpoint> breakpoints = new ArrayList<ChromiumLineBreakpoint>(

                            markers.length);

                    for (IMarker marker : markers) {

                        // If it is not ChromiumLineBreakpoint - something's gone horribly wrong. Better get ClassCastException

                        ChromiumLineBreakpoint breakpoint = (ChromiumLineBreakpoint) DebugPlugin.getDefault()

                                .getBreakpointManager().getBreakpoint(marker);

                        breakpointHandler.breakpointAdded(breakpoint);

                        breakpoints.add(breakpoint);

                    }

                } catch (CoreException e) {

                    Activator.log(e);

                }

            }

        });

    }

    public void scriptLoaded(Script newScript) {

        resourceManager.addScript(newScript);

    }

    public int getLineNumber(CallFrame stackFrame) {

        int offset = 0;

        Script script = stackFrame.getScript();

        if (script != null) {

            offset = script.getStartLine();

        }

        return offset + stackFrame.getLineNumber() + 1;

    }

    private final ISourceLookupDirector sourceLocator;

    public VmResource findVmResourceFromWorkspaceFile(IFile file) throws CoreException {

        return new VmResourceImpl(resourceManager.findVmResource(file), resourceManager.getScript(file), file.getName());

    }

    private static final class VmResourceImpl implements VmResource {

        private final String name;

        private final Script script;

        private final VmResourceId id;

        public VmResourceImpl(VmResourceId resourceId, Script browserScript, String resourceName) {

            super();

            this.id = resourceId;

            this.script = browserScript;

            this.name = resourceName;

        }

        public VmResourceId getId() {

            return id;

        }

        public Script getScript() {

            return script;

        }

        public String getFileName() {

            return name;

        }

    }

    public void reloadScript(Script script) {

        System.out.println(script);

    }

    public void synchronizeBreakpoints(Direction direction, Callback callback) {

        System.out.println(direction);

    }

}