Updated watch-news.ps1

scripts/watch-news.ps1

@@ -1,34 +1,37 @@
 <#
 .SYNOPSIS
-	Lists the latest headlines
+	Watch the latest headlines
 .DESCRIPTION
 	This PowerShell script lists the latest headlines by using a RSS (Really Simple Syndication) feed.
 .PARAMETER RSS_URL
 	Specifies the URL to the RSS feed (Yahoo World News by default)
-.PARAMETER maxLines
-	Specifies the maximum number of lines to list (24 by default)
 .EXAMPLE
-	PS> ./list-headlines.ps1
-	❇️ Niger coup: Ecowas deadline sparks anxiety in northern Nigeria
-	...
+	PS> ./watch-headlines.ps1
+	             ❇️ Niger coup: Ecowas deadline sparks anxiety in northern Nigeria ❇️
 .LINK
 	https://github.com/fleschutz/PowerShell
 .NOTES
 	Author: Markus Fleschutz | License: CC0
 #>
 
-param([string]$RSS_URL = "https://news.yahoo.com/rss/world", [int]$maxLines = 24)
+param([string]$RSS_URL = "https://news.yahoo.com/rss/world", [int]$timeInterval = 30000) # in ms
+
+function GetLatestHeadline {
+	[xml]$content = (Invoke-WebRequest -URI $RSS_URL -useBasicParsing).Content
+	foreach ($item in $content.rss.channel.item) { return "$($item.title)" }
+	return ""
+}
 
 try {
-	[xml]$content = (Invoke-WebRequest -URI $RSS_URL -useBasicParsing).Content
-	[int]$count = 1
-	foreach ($item in $content.rss.channel.item) {
-		& "$PSScriptRoot/write-animated.ps1" "* $($item.title) *"
-		if ($count++ -eq $maxLines) { break }
+	$previous = ""
+	while ($true) {
+		$latest = GetLatestHeadline
+		if ($latest -ne $previous) {
+			& "$PSScriptRoot/write-animated.ps1" "❇️ $latest ❇️"
+			$previous = $latest
+		}
+		Start-Sleep -milliseconds $timeInterval
 	}
-        $source = $content.rss.channel.title
-        $date = $content.rss.channel.pubDate
-	"   (by $source as of $date)"
 	exit 0 # success
 } catch {
 	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"