Get-PC/Private/Get-Hostname.ps1

function Get-Hostname ([string]$name) {
    if ($name.Length -eq 5) {
        $res = Get-AssetConversion $name 
        if ($res) { return $res }
    }
    # Regex to match IP Address brought to you by https://stackoverflow.com/a/36760050
    if ($name -match "^((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4}$") {
        $res = Resolve-DnsName $name
        if ($res -and $res.NameHost -and ($res.NameHost -match "([^.]*)\.int\.samhealth\.net")) {
            return $Matches[1]
        }
    }
    if ($name.Length -eq 7) {
        $res = Get-ServiceTagConversion $name 
        if ($res) { return $res }
    }
    # Regex to match MAC Address brought to you by https://stackoverflow.com/a/4260512
    if ($name -match "^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$") {
        $res = Get-SCCM_PCFromMAC $name
        if ($res) { return $res }
    }
    
    return $name
}