param (
	[string]$url = "",
	[string]$mp3file ='%(title)s.%(ext)s'
)
Write-host "#####################################"
Write-host "###  Youtube-DL downloadskript    ###"
Write-host "#####################################"
write-host "- Cleaning Cache"
& .\youtube-dl.exe "--rm-cache-dir"
Write-host "LastExitCode:$($LASTEXITCODE)"
Write-host "- Pruefe auf Update"
& .\youtube-dl.exe "--update"
Write-host "LastExitCode:$($LASTEXITCODE)"

while ($url -ne "exit"){
	Write-Host "-------------------------------------------------"
	if ($url -eq "") {
		Write-host "Bitte Youtube-URL eingeben (Format:  https://www.youtube.com/watch?v=xxxxxxxxx'"
		$url= Read-Host -Prompt 'YouTube URL'
	}
	if ($url -eq "") {
		Write-host "No URL given. Exiting"
		$url = "exit"
	}
	elseif (!$url.startswith("https://www.youtube.com/watch?")) {
		write-error "Invalid URL $($url)"
	}
	else {
		Write-Host "Start Download from $url"
		& .\youtube-dl --ignore-errors --extract-audio --audio-format mp3 --no-overwrites --audio-quality 128k -R 100 -o """$($mp3file)""" """$($url)"""
		switch ($LASTEXITCODE) {
			0 { Write-Host "Done Download from $url" -ForegroundColor green }
			1 { Write-Host "Error Downloading" -ForegroundColor red }
			Default {Write-host "Unknown LastExitCode:$($LASTEXITCODE)"}
		}
		$url=""		
	}
}

Write-host "################# End ####################"