Added commands to script.

play-lofi

@@ -23,6 +23,19 @@
 
 link_file="$XDG_CONFIG_HOME/lofi-link"
 
+print_help() {
+	echo "USAGE: play-lofi [commands]
+A program to play a lofi stream from Invidious (a YouTube proxy). When
+given no options, it plays from the stream URL in '\$XDG_CONFIG_HOME/
+lofi-link'. If the file does not exist it will give you a selection of
+streams to choose from.
+
+Commands:
+	new         choose a new stream URL
+	set <url>   set stream URL
+	help        show this help information"
+}
+
 new_link() {
 	local results=$(curl -s "https://invidio.us/search?q=lofi+radio" |
 		grep "<p>.*watch" | tr -d "\n" | tr -s " ")
@@ -55,6 +68,35 @@ new_link() {
 	echo $link > $link_file
 }
 
+# argument parsing
+if [ "$#" -eq "1" ]
+then
+	case $1 in
+		"help")
+			print_help
+			exit 0;;
+		"new")
+			new_link;;
+		*)
+			echo "Unknown command '$1'. Run 'play-lofi help' for a list of commands."
+			exit 1;;
+	esac
+elif [ "$#" -eq "2" ]
+then
+	if [ "$1" = "set" ]
+	then
+		echo "$2" > $link_file
+		exit 0
+	else
+		echo "Unknown command '$1 $2'. Run 'play-lofi help' for a list of commands."
+		exit 1
+	fi
+elif [ "$#" -gt "2" ]
+then
+	echo "Too many arguments. Run 'play-lofi help' for a list of commands."
+	exit 1
+fi
+
 # check for link file
 if ! [ -e "$link_file" ]
 then