Find Twitter Friends on Mastodon

FindTwitterFriendsOnMastodon.ps1

<#
Uses BluebirdPS to get all of the people you follow on Twitter. 
Then searches their profile for potential Mastodon usernames.
To setup BluebirdPS: https://github.com/thedavecarroll/BluebirdPS 
#>
$TwitterFriends = Get-TwitterFriends

# The property fields to search
$properties = 'Name','Description'

$MastodonFriends = foreach($friend in $TwitterFriends){ 
    foreach($p in $properties){
        # Check for username pattern
        $username = [regex]::Match($friend.$p, '@([^\s]+)@([^\s]+)\.([0-9a-zA-Z\.]+)')
        if($username.Success){
            $friend | Select-Object -Property UserName, Name, @{l='Mastodon';e={$username.Value}}
        }
        # Check for link pattern. Convert links to username format
        $link = [regex]::Match($friend.$p, '([0-9a-zA-Z\.]+)/@([0-9a-zA-Z\.]+)')
        if($link.Success){
            $friend | Select-Object -Property UserName, Name, 
                @{l='Mastodon';e={"$($link.Value.Split('/')[-1])@$($link.Value.Split('/')[0])"}}
        }
    }
}
$MastodonFriends