/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef ServiceWorkerGlobalScope_h
#define ServiceWorkerGlobalScope_h

#include "bindings/modules/v8/UnionTypesModules.h"
#include "core/workers/WorkerGlobalScope.h"
#include "modules/ModulesExport.h"
#include "platform/heap/Handle.h"
#include "wtf/Assertions.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"

namespace blink {

class Dictionary;
class Request;
class ScriptPromise;
class ScriptState;
class ServiceWorkerClients;
class ServiceWorkerRegistration;
class ServiceWorkerThread;
class WaitUntilObserver;
class WebServiceWorkerRegistration;
class WorkerThreadStartupData;

typedef RequestOrUSVString RequestInfo;

class MODULES_EXPORT ServiceWorkerGlobalScope final : public WorkerGlobalScope {
    DEFINE_WRAPPERTYPEINFO();
public:
    static PassRefPtrWillBeRawPtr<ServiceWorkerGlobalScope> create(ServiceWorkerThread*, PassOwnPtr<WorkerThreadStartupData>);

    virtual ~ServiceWorkerGlobalScope();
    virtual bool isServiceWorkerGlobalScope() const override { return true; }

    // WorkerGlobalScope
    virtual void didEvaluateWorkerScript() override;

    // ServiceWorkerGlobalScope.idl
    ServiceWorkerClients* clients();
    ServiceWorkerRegistration* registration();

    ScriptPromise fetch(ScriptState*, const RequestInfo&, const Dictionary&, ExceptionState&);

    void close(ExceptionState&);

    ScriptPromise skipWaiting(ScriptState*);

    void setRegistration(WebServiceWorkerRegistration*);

    // EventTarget
    virtual bool addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture = false) override;
    virtual const AtomicString& interfaceName() const override;
    virtual bool dispatchEvent(PassRefPtrWillBeRawPtr<Event>) override;

    void dispatchExtendableEvent(PassRefPtrWillBeRawPtr<Event>, WaitUntilObserver*);

    DEFINE_ATTRIBUTE_EVENT_LISTENER(install);
    DEFINE_ATTRIBUTE_EVENT_LISTENER(activate);
    DEFINE_ATTRIBUTE_EVENT_LISTENER(fetch);
    DEFINE_ATTRIBUTE_EVENT_LISTENER(message);
    DEFINE_ATTRIBUTE_EVENT_LISTENER(sync);

    DECLARE_VIRTUAL_TRACE();

private:
    class SkipWaitingCallback;

    ServiceWorkerGlobalScope(const KURL&, const String& userAgent, ServiceWorkerThread*, double timeOrigin, const SecurityOrigin*, PassOwnPtrWillBeRawPtr<WorkerClients>);
    void importScripts(const Vector<String>& urls, ExceptionState&) override;
    PassOwnPtr<CachedMetadataHandler> createWorkerScriptCachedMetadataHandler(const KURL& scriptURL, const Vector<char>* metaData) override;
    void logExceptionToConsole(const String& errorMessage, int scriptId, const String& sourceURL, int lineNumber, int columnNumber, PassRefPtrWillBeRawPtr<ScriptCallStack>) override;
    void scriptLoaded(size_t scriptSize, size_t cachedMetadataSize) override;

    PersistentWillBeMember<ServiceWorkerClients> m_clients;
    PersistentWillBeMember<ServiceWorkerRegistration> m_registration;
    bool m_didEvaluateScript;
    bool m_hadErrorInTopLevelEventHandler;
    unsigned m_eventNestingLevel;
    size_t m_scriptCount;
    size_t m_scriptTotalSize;
    size_t m_scriptCachedMetadataTotalSize;
};

} // namespace blink

#endif // ServiceWorkerGlobalScope_h
