#include <windows.h>

bool ReadEVERESTSensorValue(char* name, LPBYTE buffer, DWORD bufferChars)
{
    HKEY key;
    // TODO: Verify Registry key path.
    LONG result = RegOpenKeyA(HKEY_CURRENT_USER, "Software\\Lavalys\\EVEREST\\SensorValues", &key);
    if (result != ERROR_SUCCESS)
        return false;

    DWORD type;
    DWORD charsRead = bufferChars;
    result = RegQueryValueExA(key, name, 0, &type, buffer, &charsRead);
    if (result != ERROR_SUCCESS) {
        RegCloseKey(key);
        return false;
    }

    RegCloseKey(key);
    return true;
}

DWORD ConvertTemperatureToLEDNumber(DWORD temp)
{
    // Simple, brute-force implementation...
    if (temp <= 40) return 1;
    if (temp >= 41 && temp <= 55) return 2;
    if (temp >= 56 && temp <= 60) return 3;
    if (temp >= 61 && temp <= 65) return 4;
    if (temp >= 66 && temp <= 70) return 5;
    if (temp >= 71 && temp <= 75) return 6;
    return 7;
}

int main()
{
    // Assuming the value is stored as a DWORD...
    DWORD value;
    bool success = ReadEVERESTSensorValue("TCPU", (LPBYTE)&value, sizeof(value));
    if (success)
        DWORD led = ConvertTemperatureToLEDNumber(value);

    return 0;
}

int main()
{
    char value[16] = {0};
    bool success = ReadEVERESTSensorValue("TCPU", (LPBYTE)value, sizeof(value));
    if (success)
        DWORD led = ConvertTemperatureToLEDNumber(atoi(value));

    return 0;
}