/*

 * Copyright (c) 2022, Andreas Kling <kling@serenityos.org>

 *

 * SPDX-License-Identifier: BSD-2-Clause

 */

#include <LibWeb/Crypto/Crypto.h>

#include <LibWeb/HTML/BrowsingContext.h>

#include <LibWeb/HTML/DocumentState.h>

#include <LibWeb/HTML/SessionHistoryEntry.h>

namespace Web::HTML {

JS_DEFINE_ALLOCATOR(SessionHistoryEntry);

void SessionHistoryEntry::visit_edges(Cell::Visitor& visitor)

{

    Base::visit_edges(visitor);

    visitor.visit(m_document_state);

    visitor.visit(m_original_source_browsing_context);

}

SessionHistoryEntry::SessionHistoryEntry()

    : m_classic_history_api_state(MUST(structured_serialize_for_storage(vm(), JS::js_null())))

    , m_navigation_api_state(MUST(structured_serialize_for_storage(vm(), JS::js_undefined())))

    , m_navigation_api_key(MUST(Crypto::generate_random_uuid()))

    , m_navigation_api_id(MUST(Crypto::generate_random_uuid()))

{

}

JS::NonnullGCPtr<SessionHistoryEntry> SessionHistoryEntry::clone() const

{

    JS::NonnullGCPtr<SessionHistoryEntry> entry = *heap().allocate_without_realm<SessionHistoryEntry>();

    entry->m_step = m_step;

    entry->m_url = m_url;

    entry->m_document_state = m_document_state->clone();

    entry->m_classic_history_api_state = m_classic_history_api_state;

    entry->m_navigation_api_state = m_navigation_api_state;

    entry->m_navigation_api_key = m_navigation_api_key;

    entry->m_navigation_api_id = m_navigation_api_id;

    entry->m_scroll_restoration_mode = m_scroll_restoration_mode;

    entry->m_policy_container = m_policy_container;

    entry->m_browsing_context_name = m_browsing_context_name;

    entry->m_original_source_browsing_context = m_original_source_browsing_context;

    return entry;

}

// https://html.spec.whatwg.org/multipage/browsing-the-web.html#she-document

JS::GCPtr<DOM::Document> SessionHistoryEntry::document() const

{

    // To get a session history entry's document, return its document state's document.

    if (!m_document_state)

        return {};

    return m_document_state->document();

}

}