<#
.SYNTAX       play-m3u.ps1 [<playlist-file>]
.DESCRIPTION  plays the given playlist (in .M3U file format)
.LINK         https://github.com/fleschutz/PowerShell
.NOTES        Author: Markus Fleschutz / License: CC0
#>

param($Filename = "")
if ($Filename -eq "" ) { $Filename = read-host "Enter the M3U playlist filename" }

try {
	$Lines = get-content $Filename

	add-type -assemblyName presentationCore
	$MediaPlayer = new-object system.windows.media.mediaplayer

	for ([int]$i=0; $i -lt $Lines.Count; $i++) {
		$Line = $Lines[$i]
		if ($Line[0] -ne "#") {
			$FullPath = (get-childItem "$Line").fullname
			do {
				$MediaPlayer.open($FullPath)
				$Milliseconds = $MediaPlayer.NaturalDuration.TimeSpan.TotalMilliseconds
			} until ($Milliseconds)
			[int]$Minutes = $Milliseconds / 60000
			[int]$Seconds = ($Milliseconds / 1000) % 60
			"▶️Playing 🎵$Line ($($Minutes):$Seconds) ..."
			$MediaPlayer.Volume = 1
			$MediaPlayer.play()
			start-sleep -milliseconds $Milliseconds
			$MediaPlayer.stop()
			$MediaPlayer.close()
		}
	}
	exit 0
} catch {
	write-error "ERROR: line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
	exit 1
}