Control Spotify on Windows via API

fortunate-son.ps1

Param
  (
     [Parameter(Position=0)]
     [ValidateSet('play', 'stop')]
     [String]
     $Operation = $(throw "Operation is required (play or stop)."),

     [alias("Device")] 
     [String]
     $DeviceName = $env:COMPUTERNAME,

     [String]
     $Track = "spotify:track:4BP3uh0hFLFRb5cjsgLqDh",

     [Parameter(Mandatory=$false)]
     [String]
     $ContextUri, # To play playlists or albums for example, eg. spotify:album:... or spotify:playlist:... (takes precedence)

     [Parameter(Mandatory=$false)]
     [nullable[bool]]
     $Shuffle, # To enable or disable shuffle when using ContextUri, if not specified, does not change state

     [String]
     $SpotifyExe = "spotify:" # UWP apps are launched through URL scheme
  ) 

Import-Module Spotify

# Update the access token
Update-SpotifyAccessToken

# Check if Spotify is running, if not, start it
if ((Get-Process "Spotify" -ErrorAction SilentlyContinue) -eq $Null) {
    Start-Process -FilePath $SpotifyExe
}

$DeviceId = $null
$Attempt = 0
do {
    Get-SpotifyDevices | ForEach-Object {
        if ($_.name -eq $DeviceName) {
            $DeviceId = $_.id
        }
    }
    if ($DeviceId -eq $null) {
        # If the device isn't here yet, wait for 20 seconds until it appears
        Start-Sleep -Seconds 2
        $Attempt++
    } else {
        break
    } 
} while ($Attempt -lt 10)

if ($DeviceId -eq $null) {
    throw "Unable to find Spotify device: $DeviceName"  
} 

switch ($Operation) {
    "play" {
        if (![string]::IsNullOrEmpty($ContextUri)) {
            if ($Shuffle -ne $null) {
                Set-SpotifyPlaybackShuffle -State $Shuffle -DeviceId $DeviceId 
            }
            Start-SpotifyPlayback -ContextUri $ContextUri -DeviceId $DeviceId
        } else {
            Start-SpotifyPlayback -TrackUri $Track -DeviceId $DeviceId
        }
    }
    "stop" {
        Suspend-SpotifyPlayback -DeviceId $DeviceId
    }
}