#!/bin/sh

if echo "$1" | grep -q "https*://\S\+\.[A-Za-z]\+\S*"; then
	url="$1"
else
	url="$(grep -Eom1 '<[^>]+(rel="self"|application/[a-z]+\+xml)[^>]+>' "$1" |
		grep -o "https?://[^\" ]")"

	echo "$url" | grep -q "https*://\S\+\.[A-Za-z]\+\S*" ||
		notify-send "That doesn't look like a full URL." && exit 1
fi

RSSFILE="${XDG_CONFIG_HOME:-$HOME/.config}/newsboat/urls"
if awk '{print $1}' "$RSSFILE" | grep "^$url$" >/dev/null; then
	notify-send "You already have this RSS feed."
else
	echo "$url" >>"$RSSFILE" && notify-send "RSS feed added."
fi