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/*
* Copyright (c) 2022, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Array.h>
#include <AK/Error.h>
#include <AK/Optional.h>
#include <AK/String.h>
#include <AK/StringView.h>
#include <AK/Time.h>
#include <AK/Types.h>
#include <LibTimeZone/Forward.h>
namespace TimeZone {
enum class InDST {
No,
Yes,
};
struct Offset {
i64 seconds { 0 };
InDST in_dst { InDST::No };
};
struct NamedOffset : public Offset {
String name;
};
struct Coordinate {
constexpr float decimal_coordinate() const
{
return static_cast<float>(degrees) + (static_cast<float>(minutes) / 60.0f) + (static_cast<float>(seconds) / 3'600.0f);
}
i16 degrees { 0 };
u8 minutes { 0 };
u8 seconds { 0 };
};
struct Location {
Coordinate latitude;
Coordinate longitude;
};
StringView system_time_zone();
StringView current_time_zone();
ErrorOr<void> change_time_zone(StringView time_zone);
Span<StringView const> all_time_zones();
Optional<TimeZone> time_zone_from_string(StringView time_zone);
StringView time_zone_to_string(TimeZone time_zone);
Optional<StringView> canonicalize_time_zone(StringView time_zone);
Optional<DaylightSavingsRule> daylight_savings_rule_from_string(StringView daylight_savings_rule);
StringView daylight_savings_rule_to_string(DaylightSavingsRule daylight_savings_rule);
Optional<Offset> get_time_zone_offset(TimeZone time_zone, AK::Time time);
Optional<Offset> get_time_zone_offset(StringView time_zone, AK::Time time);
Optional<Array<NamedOffset, 2>> get_named_time_zone_offsets(TimeZone time_zone, AK::Time time);
Optional<Array<NamedOffset, 2>> get_named_time_zone_offsets(StringView time_zone, AK::Time time);
Optional<Location> get_time_zone_location(TimeZone time_zone);
Optional<Location> get_time_zone_location(StringView time_zone);
}
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