/*
 * Copyright (C) 2018 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 ENABLE(WEB_AUTHN)

#include <WebCore/IDLTypes.h>
#include <WebCore/PublicKeyCredential.h>
#include <wtf/CompletionHandler.h>
#include <wtf/Forward.h>
#include <wtf/Noncopyable.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/WeakPtr.h>

namespace WebAuthn {
enum class Scope;
}

namespace WebCore {
class AuthenticatorCoordinator;
}

namespace WTF {
template<typename T> struct IsDeprecatedWeakRefSmartPointerException;
template<> struct IsDeprecatedWeakRefSmartPointerException<WebCore::AuthenticatorCoordinator> : std::true_type { };
}

namespace WebCore {

class AbortSignal;
class AuthenticatorCoordinatorClient;
class BasicCredential;
class Document;
typedef IDLRecord<IDLDOMString, IDLBoolean> PublicKeyCredentialClientCapabilities;

struct PublicKeyCredentialCreationOptions;
struct PublicKeyCredentialRequestOptions;
struct CredentialCreationOptions;
struct CredentialRequestOptions;
class SecurityOriginData;

template<typename IDLType> class DOMPromiseDeferred;

using CredentialPromise = DOMPromiseDeferred<IDLNullable<IDLInterface<BasicCredential>>>;
using ScopeAndCrossOriginParent = std::pair<WebAuthn::Scope, std::optional<SecurityOriginData>>;

class AuthenticatorCoordinator final : public CanMakeWeakPtr<AuthenticatorCoordinator> {
    WTF_MAKE_TZONE_ALLOCATED_EXPORT(AuthenticatorCoordinator, WEBCORE_EXPORT);
    WTF_MAKE_NONCOPYABLE(AuthenticatorCoordinator);
public:
    WEBCORE_EXPORT explicit AuthenticatorCoordinator(std::unique_ptr<AuthenticatorCoordinatorClient>&&);
    WEBCORE_EXPORT void setClient(std::unique_ptr<AuthenticatorCoordinatorClient>&&);

    // The following methods implement static methods of PublicKeyCredential.
    void create(const Document&, CredentialCreationOptions&&, RefPtr<AbortSignal>&&, CredentialPromise&&);
    void discoverFromExternalSource(const Document&, CredentialRequestOptions&&, CredentialPromise&&);
    void isUserVerifyingPlatformAuthenticatorAvailable(const Document&, DOMPromiseDeferred<IDLBoolean>&&) const;
    void isConditionalMediationAvailable(const Document&, DOMPromiseDeferred<IDLBoolean>&&) const;

    void getClientCapabilities(const Document&, DOMPromiseDeferred<PublicKeyCredentialClientCapabilities>&&) const;

    void signalUnknownCredential(const Document&, UnknownCredentialOptions&&, DOMPromiseDeferred<void>&&);
    void signalAllAcceptedCredentials(const Document&, AllAcceptedCredentialsOptions&&, DOMPromiseDeferred<void>&&);
    void signalCurrentUserDetails(const Document&, CurrentUserDetailsOptions&&, DOMPromiseDeferred<void>&&);

private:
    AuthenticatorCoordinator() = default;

    std::unique_ptr<AuthenticatorCoordinatorClient> m_client;
    bool m_isCancelling = false;
    CompletionHandler<void()> m_queuedRequest;
};

} // namespace WebCore

#endif // ENABLE(WEB_AUTHN)
