#!/bin/bash
set -euo pipefail


baseDir="$(realpath "$(dirname "${0}")")"
date="$(TZ=UTC date -R)"


source "${baseDir}/website.conf"

shopt -s extglob


links=($(find -P "${webroot}/blog/" | awk '/index\.html/ && !/blog\/index\.html/ {sub(/index\.html/,"")sub(/.*\/blog/,"blog");print|"sort"}'))


menu="@(${links[0]}"

for ((i=1;i<${#links[@]};i++)); do
	menu+="|${links[${i}]}"
done

menu+=")"

printf 'Select the link you wish to use\n'

select link in "${links[@]}"
do
	case ${link} in
	${menu})
		break
		;;
	*)
		printf \
			'Invalid option\n'
		;;
	esac
done

shopt -u extglob

title="$(cat "${webroot}/${link}/index.html" | awk '/<title>/{getline;print}' | sed 's|.*\[ ||g; s| \| easthighNerd \].*||')"

printf 'Description of blog post:\n'
read -r description


cat "${webroot}/blog/feed.rss" | sed '/<last.*$/Q' | tee "${webroot}/blog/feed.rss.tmp" &> /dev/null

cat << EOF | tee --append "${webroot}/blog/feed.rss.tmp" &> /dev/null
		<lastBuildDate>
			${date}
		</lastBuildDate>
		<item>
			<title>
				${title}
			</title>
			<link>
				${websiteUrl}/${link}
			</link>
			<guid>
				$(uuidgen)
			</guid>
			<pubDate>
				${date}
			</pubDate>
			<description>
				${description}
			</description>
		</item>
EOF

cat "${webroot}/blog/feed.rss" | sed '1,29d' | tee --append "${webroot}/blog/feed.rss.tmp" &> /dev/null

mv "${webroot}/blog/feed.rss.tmp" "${webroot}/blog/feed.rss"