AudioCppTray/AutoLogRoll.cpp at main · spicchio72/AudioCppTray · GitHub

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#include "AutoLogRoll.h"

#include <windows.h>


namespace
{
constexpr wchar_t SETTINGS_KEY[] = L"Software\\AudioCppTray";
constexpr wchar_t AUTO_ROLL_VALUE[] = L"AutomaticLogRoll";
constexpr wchar_t LAST_ROLL_DATE_VALUE[] = L"LastAutomaticLogRollDate";
constexpr wchar_t ROTATION_HOUR_VALUE[] = L"RotationHour";


DWORD GetTodayKey()
{
    SYSTEMTIME now{};
    GetLocalTime(&now);

    return now.wYear * 10000 + now.wMonth * 100 + now.wDay;
}


DWORD ReadSetting(const wchar_t* name, DWORD defaultValue)
{
    HKEY key = nullptr;

    if (RegOpenKeyExW(
            HKEY_CURRENT_USER,
            SETTINGS_KEY,
            0,
            KEY_QUERY_VALUE,
            &key
        ) != ERROR_SUCCESS)
    {
        return defaultValue;
    }

    DWORD value = defaultValue;
    DWORD type = REG_DWORD;
    DWORD size = sizeof(value);

    if (RegQueryValueExW(
            key,
            name,
            nullptr,
            &type,
            reinterpret_cast<BYTE*>(&value),
            &size
        ) != ERROR_SUCCESS || type != REG_DWORD)
    {
        value = defaultValue;
    }

    RegCloseKey(key);
    return value;
}


void WriteSetting(const wchar_t* name, DWORD value)
{
    HKEY key = nullptr;

    if (RegCreateKeyExW(
            HKEY_CURRENT_USER,
            SETTINGS_KEY,
            0,
            nullptr,
            0,
            KEY_SET_VALUE,
            nullptr,
            &key,
            nullptr
        ) == ERROR_SUCCESS)
    {
        RegSetValueExW(
            key,
            name,
            0,
            REG_DWORD,
            reinterpret_cast<const BYTE*>(&value),
            sizeof(value)
        );

        RegCloseKey(key);
    }
}
}


bool IsAutomaticLogRollEnabled()
{
    return ReadSetting(AUTO_ROLL_VALUE, 0) != 0;
}


void SetAutomaticLogRollEnabled(bool enabled)
{
    WriteSetting(AUTO_ROLL_VALUE, enabled ? 1 : 0);
}


bool HasAutomaticLogRollRunToday()
{
    return ReadSetting(LAST_ROLL_DATE_VALUE, 0) == GetTodayKey();
}


void MarkAutomaticLogRollRunToday()
{
    WriteSetting(LAST_ROLL_DATE_VALUE, GetTodayKey());
}


int GetAutomaticLogRollHour()
{
    DWORD value = ReadSetting(ROTATION_HOUR_VALUE, 4);
    return value > 23 ? 4 : static_cast<int>(value);
}