/*

 * Copyright (c) 2023, Jonah Shafran <jonahshafran@gmail.com>

 *

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

 */

#include <LibJS/Heap/Heap.h>

#include <LibJS/Runtime/Realm.h>

#include <LibWeb/Bindings/CSSNamespaceRulePrototype.h>

#include <LibWeb/Bindings/Intrinsics.h>

#include <LibWeb/CSS/CSSNamespaceRule.h>

#include <LibWeb/CSS/Serialize.h>

#include <LibWeb/WebIDL/ExceptionOr.h>

namespace Web::CSS {

JS_DEFINE_ALLOCATOR(CSSNamespaceRule);

CSSNamespaceRule::CSSNamespaceRule(JS::Realm& realm, Optional<FlyString> prefix, FlyString namespace_uri)

    : CSSRule(realm, Type::Namespace)

    , m_namespace_uri(move(namespace_uri))

    , m_prefix(prefix.value_or(""_fly_string))

{

}

JS::NonnullGCPtr<CSSNamespaceRule> CSSNamespaceRule::create(JS::Realm& realm, Optional<FlyString> prefix, FlyString namespace_uri)

{

    return realm.heap().allocate<CSSNamespaceRule>(realm, realm, move(prefix), move(namespace_uri));

}

void CSSNamespaceRule::initialize(JS::Realm& realm)

{

    Base::initialize(realm);

    WEB_SET_PROTOTYPE_FOR_INTERFACE(CSSNamespaceRule);

}

// https://www.w3.org/TR/cssom/#serialize-a-css-rule

String CSSNamespaceRule::serialized() const

{

    StringBuilder builder;

    // The literal string "@namespace", followed by a single SPACE (U+0020),

    builder.append("@namespace "sv);

    // followed by the serialization as an identifier of the prefix attribute (if any),

    if (!m_prefix.is_empty()) {

        serialize_an_identifier(builder, m_prefix);

        // followed by a single SPACE (U+0020) if there is a prefix,

        builder.append(" "sv);

    }

    //  followed by the serialization as URL of the namespaceURI attribute,

    serialize_a_url(builder, m_namespace_uri);

    // followed the character ";" (U+003B).

    builder.append(";"sv);

    return MUST(builder.to_string());

}

}