/*
 * Copyright (C) 2025 Apple 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:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
 */

#pragma once

#if HAVE(WEBCONTENTRESTRICTIONS)

#include <WebCore/ParentalControlsContentFilter.h>
#include <WebCore/ParentalControlsURLFilterParameters.h>
#include <wtf/ThreadSafeRefCounted.h>

#if HAVE(BROWSERENGINEKIT_WEBCONTENTFILTER)
#include <WebCore/CocoaView.h>
#endif

OBJC_CLASS WCRBrowserEngineClient;

namespace WTF {
class WorkQueue;
}

namespace WebCore {

class ParentalControlsContentFilter;

class ParentalControlsURLFilter : public ThreadSafeRefCounted<ParentalControlsURLFilter, WTF::DestructionThread::Main> {
public:
#if HAVE(WEBCONTENTRESTRICTIONS_PATH_SPI)
    WEBCORE_EXPORT static ParentalControlsURLFilter& filterWithConfigurationPath(const String&);
#else
    WEBCORE_EXPORT static ParentalControlsURLFilter& singleton();
    WEBCORE_EXPORT static void setGlobalFilter(Ref<ParentalControlsURLFilter>&&);
    WEBCORE_EXPORT static bool hasGlobalFilter();
#endif
    WEBCORE_EXPORT static void setFilterForTesting(Ref<ParentalControlsURLFilter>&&);
    WEBCORE_EXPORT static void allowURL(const ParentalControlsURLFilterParameters&, CompletionHandler<void(bool)>&&);
    WEBCORE_EXPORT static WorkQueue& workQueueSingleton();
    WEBCORE_EXPORT bool isEnabled() const;
    void NODELETE resetIsEnabled();

    WEBCORE_EXPORT virtual ~ParentalControlsURLFilter();
    virtual bool isEnabledImpl() const;
    void isURLAllowed(IsMainFrameLoad, const URL& mainDocumentURL, const URL&, ParentalControlsContentFilter&);
    WEBCORE_EXPORT void isURLAllowed(IsMainFrameLoad, const URL& mainDocumentURL, const URL&, CompletionHandler<void(bool, NSData *)>&&);
    virtual void allowURL(const URL&, CompletionHandler<void(bool)>&&);
#if HAVE(WEBCONTENTRESTRICTIONS_ASK_TO)
#if HAVE(BROWSERENGINEKIT_WEBCONTENTFILTER)
    virtual void requestPermissionForURL(const URL&, const URL& referrerURL, CompletionHandler<void(bool)>&&, CocoaView* presentingView = nullptr);
#else
    WEBCORE_EXPORT void requestPermissionForURL(const URL&, const URL& referrerURL, CompletionHandler<void(bool)>&&);
#endif
#endif

protected:
#if HAVE(WEBCONTENTRESTRICTIONS_PATH_SPI)
    ParentalControlsURLFilter(const String& configurationPath);
#endif
    WEBCORE_EXPORT ParentalControlsURLFilter();

    virtual void isURLAllowedImpl(IsMainFrameLoad, const URL& mainDocumentURL, const URL&, CompletionHandler<void(bool, NSData *)>&&);

private:
    WCRBrowserEngineClient* effectiveWCRBrowserEngineClient();
    bool isWCRBrowserEngineClientEnabled() const;

    mutable std::optional<bool> m_isEnabled;
    const RetainPtr<WCRBrowserEngineClient> m_wcrBrowserEngineClient;
#if HAVE(WEBCONTENTRESTRICTIONS_PATH_SPI)
    String m_configurationPath;
#endif
};

} // namespace WebCore

#endif // HAVE(WEBCONTENTRESTRICTIONS)
