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/*
* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Optional.h>
#include <LibJS/Heap/MarkedVector.h>
#include <LibJS/Runtime/Object.h>
#include <LibJS/Runtime/Temporal/AbstractOperations.h>
namespace JS::Temporal {
class TimeZone final : public Object {
JS_OBJECT(TimeZone, Object);
public:
// Needs to store values in the range -8.64 * 10^13 to 8.64 * 10^13
using OffsetType = double;
virtual ~TimeZone() override = default;
[[nodiscard]] String const& identifier() const { return m_identifier; }
[[nodiscard]] Optional<OffsetType> const& offset_nanoseconds() const { return m_offset_nanoseconds; }
void set_identifier(String identifier) { m_identifier = move(identifier); };
void set_offset_nanoseconds(OffsetType offset_nanoseconds) { m_offset_nanoseconds = offset_nanoseconds; };
private:
explicit TimeZone(Object& prototype);
// 11.5 Properties of Temporal.TimeZone Instances, https://tc39.es/proposal-temporal/#sec-properties-of-temporal-timezone-instances
String m_identifier; // [[Identifier]]
Optional<OffsetType> m_offset_nanoseconds; // [[OffsetNanoseconds]]
};
bool is_valid_time_zone_name(String const& time_zone);
String canonicalize_time_zone_name(String const& time_zone);
ThrowCompletionOr<TimeZone*> create_temporal_time_zone(VM&, String const& identifier, FunctionObject const* new_target = nullptr);
ISODateTime get_iso_parts_from_epoch(VM&, Crypto::SignedBigInteger const& epoch_nanoseconds);
BigInt* get_iana_time_zone_next_transition(VM&, BigInt const& epoch_nanoseconds, StringView time_zone_identifier);
BigInt* get_iana_time_zone_previous_transition(VM&, BigInt const& epoch_nanoseconds, StringView time_zone_identifier);
String format_time_zone_offset_string(double offset_nanoseconds);
String format_iso_time_zone_offset_string(double offset_nanoseconds);
ThrowCompletionOr<Object*> to_temporal_time_zone(VM&, Value temporal_time_zone_like);
ThrowCompletionOr<double> get_offset_nanoseconds_for(VM&, Value time_zone, Instant&);
ThrowCompletionOr<String> builtin_time_zone_get_offset_string_for(VM&, Value time_zone, Instant&);
ThrowCompletionOr<PlainDateTime*> builtin_time_zone_get_plain_date_time_for(VM&, Value time_zone, Instant&, Object& calendar);
ThrowCompletionOr<Instant*> builtin_time_zone_get_instant_for(VM&, Value time_zone, PlainDateTime&, StringView disambiguation);
ThrowCompletionOr<Instant*> disambiguate_possible_instants(VM&, MarkedVector<Instant*> const& possible_instants, Value time_zone, PlainDateTime&, StringView disambiguation);
ThrowCompletionOr<MarkedVector<Instant*>> get_possible_instants_for(VM&, Value time_zone, PlainDateTime&);
ThrowCompletionOr<bool> time_zone_equals(VM&, Object& one, Object& two);
bool is_valid_time_zone_numeric_utc_offset_syntax(String const&);
}
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