/*

 * Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>

 *

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

 */

#include <LibWeb/Bindings/ExceptionOrUtils.h>

#include <LibWeb/WebIDL/ObservableArray.h>

namespace Web::WebIDL {

JS_DEFINE_ALLOCATOR(ObservableArray);

JS::NonnullGCPtr<ObservableArray> ObservableArray::create(JS::Realm& realm)

{

    auto prototype = realm.intrinsics().array_prototype();

    return realm.heap().allocate<ObservableArray>(realm, prototype);

}

ObservableArray::ObservableArray(Object& prototype)

    : JS::Array(prototype)

{

}

void ObservableArray::visit_edges(JS::Cell::Visitor& visitor)

{

    Base::visit_edges(visitor);

    visitor.visit(m_on_set_an_indexed_value);

    visitor.visit(m_on_delete_an_indexed_value);

}

void ObservableArray::set_on_set_an_indexed_value_callback(SetAnIndexedValueCallbackFunction&& callback)

{

    m_on_set_an_indexed_value = create_heap_function(heap(), move(callback));

}

void ObservableArray::set_on_delete_an_indexed_value_callback(DeleteAnIndexedValueCallbackFunction&& callback)

{

    m_on_delete_an_indexed_value = create_heap_function(heap(), move(callback));

}

JS::ThrowCompletionOr<bool> ObservableArray::internal_set(JS::PropertyKey const& property_key, JS::Value value, JS::Value receiver, JS::CacheablePropertyMetadata* metadata)

{

    if (property_key.is_number() && m_on_set_an_indexed_value)

        TRY(Bindings::throw_dom_exception_if_needed(vm(), [&] { return m_on_set_an_indexed_value->function()(value); }));

    return TRY(Base::internal_set(property_key, value, receiver, metadata));

}

JS::ThrowCompletionOr<bool> ObservableArray::internal_delete(JS::PropertyKey const& property_key)

{

    if (property_key.is_number() && m_on_delete_an_indexed_value)

        TRY(Bindings::throw_dom_exception_if_needed(vm(), [&] { return m_on_delete_an_indexed_value->function()(); }));

    return JS::Array::internal_delete(property_key);

}

JS::ThrowCompletionOr<void> ObservableArray::append(JS::Value value)

{

    if (m_on_set_an_indexed_value)

        TRY(Bindings::throw_dom_exception_if_needed(vm(), [&] { return m_on_set_an_indexed_value->function()(value); }));

    indexed_properties().append(value);

    return {};

}

void ObservableArray::clear()

{

    while (!indexed_properties().is_empty()) {

        indexed_properties().storage()->take_first();

    }

}

}