130 lines
3.7 KiB
C++
130 lines
3.7 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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namespace Data {
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inline constexpr auto kLifeStartDate = 1375315200; // Let it be 01.08.2013.
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class LastseenStatus final {
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public:
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LastseenStatus() = default;
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[[nodiscard]] static LastseenStatus Recently(bool byMe = false) {
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return LastseenStatus(kRecentlyValue, false, byMe);
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}
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[[nodiscard]] static LastseenStatus WithinWeek(bool byMe = false) {
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return LastseenStatus(kWithinWeekValue, false, byMe);
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}
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[[nodiscard]] static LastseenStatus WithinMonth(bool byMe = false) {
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return LastseenStatus(kWithinMonthValue, false, byMe);
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}
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[[nodiscard]] static LastseenStatus LongAgo(bool byMe = false) {
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return LastseenStatus(kLongAgoValue, false, byMe);
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}
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[[nodiscard]] static LastseenStatus OnlineTill(
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TimeId till,
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bool local = false,
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bool hiddenByMe = false) {
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return (till >= kLifeStartDate + kSpecialValueSkip)
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? LastseenStatus(till - kLifeStartDate, !local, hiddenByMe)
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: LongAgo(hiddenByMe);
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}
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[[nodiscard]] bool isHidden() const {
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return !_available;
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}
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[[nodiscard]] bool isRecently() const {
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return !_available && (_value == kRecentlyValue);
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}
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[[nodiscard]] bool isWithinWeek() const {
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return !_available && (_value == kWithinWeekValue);
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}
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[[nodiscard]] bool isWithinMonth() const {
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return !_available && (_value == kWithinMonthValue);
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}
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[[nodiscard]] bool isLongAgo() const {
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return !_available && (_value == kLongAgoValue);
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}
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[[nodiscard]] bool isHiddenByMe() const {
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return _hiddenByMe;
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}
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[[nodiscard]] bool isOnline(TimeId now) const {
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return (_value >= kSpecialValueSkip)
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&& (kLifeStartDate + _value > now);
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}
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[[nodiscard]] bool isLocalOnlineValue() const {
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return !_available && (_value >= kSpecialValueSkip);
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}
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[[nodiscard]] TimeId onlineTill() const {
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return (_value >= kSpecialValueSkip)
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? (kLifeStartDate + _value)
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: 0;
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}
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[[nodiscard]] uint32 serialize() const {
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return (_value & 0x3FFFFFFF)
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| (_available << 30)
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| (_hiddenByMe << 31);
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}
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[[nodiscard]] static LastseenStatus FromSerialized(uint32 value) {
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auto result = LastseenStatus();
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result._value = value & 0x3FFFFFFF;
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result._available = (value >> 30) & 1;
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result._hiddenByMe = (value >> 31) & 1;
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return result.valid() ? result : LastseenStatus();
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}
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[[nodiscard]] static LastseenStatus FromLegacy(int32 value) {
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if (value == -2) {
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return LastseenStatus::Recently();
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} else if (value == -3) {
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return LastseenStatus::WithinWeek();
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} else if (value == -4) {
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return LastseenStatus::WithinMonth();
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} else if (value < -30) {
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return LastseenStatus::OnlineTill(-value, true);
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} else if (value > 0) {
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return LastseenStatus::OnlineTill(value);
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}
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return LastseenStatus();
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}
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friend inline constexpr auto operator<=>(
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LastseenStatus,
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LastseenStatus) = default;
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friend inline constexpr bool operator==(
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LastseenStatus a,
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LastseenStatus b) = default;
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private:
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static constexpr auto kLongAgoValue = uint32(0);
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static constexpr auto kRecentlyValue = uint32(1);
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static constexpr auto kWithinWeekValue = uint32(2);
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static constexpr auto kWithinMonthValue = uint32(3);
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static constexpr auto kSpecialValueSkip = uint32(4);
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static constexpr auto kValidAfter = kLifeStartDate + kSpecialValueSkip;
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[[nodiscard]] bool valid() const {
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return !_available || (_value >= kSpecialValueSkip);
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}
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LastseenStatus(uint32 value, bool available, bool hiddenByMe)
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: _value(value)
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, _available(available ? 1 : 0)
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, _hiddenByMe(hiddenByMe ? 1 : 0) {
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}
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uint32 _value : 30 = 0;
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uint32 _available : 1 = 0;
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uint32 _hiddenByMe : 1 = 0;
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};
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} // namespace Data
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