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/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 * 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 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 HOLDER 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.
 */

#include <AK/SharedBuffer.h>
#include <LibProtocol/Client.h>
#include <LibProtocol/Download.h>

namespace Protocol {

Client::Client()
    : IPC::ServerConnection<ProtocolClientEndpoint, ProtocolServerEndpoint>(*this, "/tmp/portal/protocol")
{
    handshake();
}

void Client::handshake()
{
    auto response = send_sync<Messages::ProtocolServer::Greet>();
    set_my_client_id(response->client_id());
}

bool Client::is_supported_protocol(const String& protocol)
{
    return send_sync<Messages::ProtocolServer::IsSupportedProtocol>(protocol)->supported();
}

RefPtr<Download> Client::start_download(const String& url, const HashMap<String, String>& request_headers)
{
    IPC::Dictionary header_dictionary;
    for (auto& it : request_headers)
        header_dictionary.add(it.key, it.value);

    i32 download_id = send_sync<Messages::ProtocolServer::StartDownload>(url, header_dictionary)->download_id();
    if (download_id < 0)
        return nullptr;
    auto download = Download::create_from_id({}, *this, download_id);
    m_downloads.set(download_id, download);
    return download;
}

bool Client::stop_download(Badge<Download>, Download& download)
{
    if (!m_downloads.contains(download.id()))
        return false;
    return send_sync<Messages::ProtocolServer::StopDownload>(download.id())->success();
}

void Client::handle(const Messages::ProtocolClient::DownloadFinished& message)
{
    RefPtr<Download> download;
    if ((download = m_downloads.get(message.download_id()).value_or(nullptr))) {
        download->did_finish({}, message.success(), message.status_code(), message.total_size(), message.shbuf_id(), message.response_headers());
    }
    send_sync<Messages::ProtocolServer::DisownSharedBuffer>(message.shbuf_id());
    m_downloads.remove(message.download_id());
}

void Client::handle(const Messages::ProtocolClient::DownloadProgress& message)
{
    if (auto download = const_cast<Download*>(m_downloads.get(message.download_id()).value_or(nullptr))) {
        download->did_progress({}, message.total_size(), message.downloaded_size());
    }
}

}