1 files changed, 62 insertions, 0 deletions

diff --git a/src/core/hle/service/psc/time/time_zone.h b/src/core/hle/service/psc/time/time_zone.h
new file mode 100644
index 000000000..ce2acca17
--- /dev/null
+++ b/src/core/hle/service/psc/time/time_zone.h
@@ -0,0 +1,62 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+#include <span>
+
+#include <tz/tz.h>
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+
+class TimeZone {
+public:
+    TimeZone() = default;
+
+    bool IsInitialized() const {
+        return m_initialized;
+    }
+
+    void SetInitialized() {
+        m_initialized = true;
+    }
+
+    void SetTimePoint(SteadyClockTimePoint& time_point);
+    void SetTotalLocationNameCount(u32 count);
+    void SetRuleVersion(RuleVersion& rule_version);
+    Result GetLocationName(LocationName& out_name);
+    Result GetTotalLocationCount(u32& out_count);
+    Result GetRuleVersion(RuleVersion& out_rule_version);
+    Result GetTimePoint(SteadyClockTimePoint& out_time_point);
+
+    Result ToCalendarTime(CalendarTime& out_calendar_time,
+                          CalendarAdditionalInfo& out_additional_info, s64 time, Tz::Rule& rule);
+    Result ToCalendarTimeWithMyRule(CalendarTime& calendar_time,
+                                    CalendarAdditionalInfo& calendar_additional, s64 time);
+    Result ParseBinary(LocationName& name, std::span<const u8> binary);
+    Result ParseBinaryInto(Tz::Rule& out_rule, std::span<const u8> binary);
+    Result ToPosixTime(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                       CalendarTime& calendar, Tz::Rule& rule);
+    Result ToPosixTimeWithMyRule(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                                 CalendarTime& calendar);
+
+private:
+    Result ParseBinaryImpl(Tz::Rule& out_rule, std::span<const u8> binary);
+    Result ToCalendarTimeImpl(CalendarTime& out_calendar_time,
+                              CalendarAdditionalInfo& out_additional_info, s64 time,
+                              Tz::Rule& rule);
+    Result ToPosixTimeImpl(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                           CalendarTime& calendar, Tz::Rule& rule, s32 is_dst);
+
+    bool m_initialized{};
+    std::recursive_mutex m_mutex;
+    LocationName m_location{};
+    Tz::Rule m_my_rule{};
+    SteadyClockTimePoint m_steady_clock_time_point{};
+    u32 m_total_location_name_count{};
+    RuleVersion m_rule_version{};
+};
+
+} // namespace Service::PSC::Time