#!/bin/bash
set -euo pipefail


BASEDIR="$(dirname "${0}" | sed "s|^\.|${PWD}|")"
DATE="$(TZ=UTC date -R)"


source "${BASEDIR}/website.conf"

shopt -s extglob


LINKS=($(find -P "${WEBROOT}/blog/" | grep 'index\.html' | grep -v 'blog/index\.html' | sed 's|index.html||g; s|.*/blog|blog|g' | 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

printf 'Title of blog post:\n'
read -r TITLE

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


cat << EOF | tee "${WEBROOT}/blog/feed.rss" &> /dev/null
$(cat "${WEBROOT}/blog/feed.rss" | sed '/<last.*$/Q')
		<lastBuildDate>
			${DATE}
		</lastBuildDate>
		<item>
			<title>
				${TITLE}
			</title>
			<link>
				${WEBSITE_URL}/${LINK}
			</link>
			<guid>
				$(uuidgen)
			</guid>
			<pubDate>
				${DATE}
			</pubDate>
			<description>
				${DESCRIPTION}
			</description>
		</item>
$(cat "${WEBROOT}/blog/feed.rss" | sed '1,29d')
EOF