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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE.Chromium file.

#include "login_delegate_qt.h"

#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/resource_dispatcher_host.h"
#include "content/public/browser/resource_request_info.h"
#include "net/url_request/url_request.h"

#include "authentication_dialog_controller.h"
#include "authentication_dialog_controller_p.h"
#include "type_conversion.h"
#include "web_contents_view_qt.h"

namespace QtWebEngineCore {

LoginDelegateQt::LoginDelegateQt(
        net::AuthChallengeInfo *authInfo,
        content::ResourceRequestInfo::WebContentsGetter web_contents_getter,
        GURL url,
        bool first_auth_attempt,
        LoginAuthRequiredCallback auth_required_callback)
    : m_authInfo(authInfo)
    , m_url(url)
    , m_auth_required_callback(std::move(auth_required_callback))
{
    Q_ASSERT(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));

    content::BrowserThread::PostTask(
            content::BrowserThread::UI, FROM_HERE,
            base::Bind(&LoginDelegateQt::triggerDialog,
                       this,
                       web_contents_getter));
}

LoginDelegateQt::~LoginDelegateQt()
{
    Q_ASSERT(m_dialogController.isNull());
}

void LoginDelegateQt::OnRequestCancelled()
{
    destroy();
    // TODO: this should close native dialog, since page can be navigated somewhere else
}

QUrl LoginDelegateQt::url() const
{
    return toQt(m_url);
}

QString LoginDelegateQt::realm() const
{
    return QString::fromStdString(m_authInfo->realm);
}

QString LoginDelegateQt::host() const
{
    return QString::fromStdString(m_authInfo->challenger.host());
}

bool LoginDelegateQt::isProxy() const
{
    return m_authInfo->is_proxy;
}

void LoginDelegateQt::triggerDialog(const content::ResourceRequestInfo::WebContentsGetter &webContentsGetter)
{
    Q_ASSERT(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
    content::WebContentsImpl *webContents =
            static_cast<content::WebContentsImpl *>(webContentsGetter.Run());
    if (!webContents)
        return;
    WebContentsAdapterClient *client = WebContentsViewQt::from(webContents->GetView())->client();

    AuthenticationDialogControllerPrivate *dialogControllerData = new AuthenticationDialogControllerPrivate(this);
    m_dialogController.reset(new AuthenticationDialogController(dialogControllerData));
    client->authenticationRequired(m_dialogController);
}

void LoginDelegateQt::sendAuthToRequester(bool success, const QString &user, const QString &password)
{
    Q_ASSERT(content::BrowserThread::CurrentlyOn(content::BrowserThread::IO));

    if (!m_auth_required_callback.is_null()) {
        if (success)
            std::move(m_auth_required_callback).Run(net::AuthCredentials(toString16(user), toString16(password)));
        else
            std::move(m_auth_required_callback).Run(base::nullopt);
    }

    destroy();
}

void LoginDelegateQt::destroy()
{
    m_dialogController.reset();
    m_auth_required_callback.Reset();
}

} // namespace QtWebEngineCore