function Plugin-Configuration {
    return @{
        textKey = "systemp"
        category = "Get System Temperature"
    };
}

function Discover {
    return @(
        @{
            resource_textkey = "temp_in_F"
            label = "Temperature Fahrenheit"
            unit = "degrees F"
            options = @("fan", "intakeFan", "exitFan")
        },
        @{
            resource_textkey = "temp_in_C"
            label = "Temperature Celsius"
            unit = "degrees C"
            options = @("fan", "intakeFan", "exitFan")
        }
    )
}

function Collect-Metric($resource_textkey, $option) {
    return Get-Temperature $resource_textkey;
}

function Get-Temperature($scale) {
    $t = Get-WmiObject MSAcpi_ThermalZoneTemperature -Namespace "root/wmi"

    $currentTempKelvin = $t.CurrentTemperature / 10;
    $currentTempCelsius = $currentTempKelvin - 273.15;

    if ($scale -eq "temp_in_F") {
        return (9/5) * $currentTempCelsius + 32;
    }

    if ($scale -eq "temp_in_C") {
        return $currentTempCelsius;
    }

    return $currentTempKel