Get the state of a hue light. If ON turn OFF, if OFF turn ON

ChangeHueLightState.ps1

# Hue Bridge
$hueBridge = "http://<huebridge>/api"
# Light to control
$lightNumber = 5 
# Username
$username = 'xgwoLFMYggwjPkzaoLF234567890'

$result = Invoke-RestMethod -Method Get -Uri "$($hueBridge)/$($username)/lights"
$currentState = $result.$lightNumber | select state

If ($currentState.state.on.Equals($false)){
    $body = @{"on"=$true} | ConvertTo-Json
    write-host "Light 5 is OFF, turning it ON"
} else {
    $body = @{"on"=$false} | ConvertTo-Json
    write-host "Light 5 is ON, turning it OFF"
}

$result = Invoke-RestMethod -Method PUT -Uri "$($hueBridge)/$($username)/lights/$($lightNumber)/state" -Body $body
$result