#!/usr/bin/env bash

link=https://wittamore.com/articles/2025
description='Ramblings from Brittany, France'
rsslink=https://wittamore.com/rss.xml
feedname=/home/philip/web/rss.xml
postDir=/home/philip/web/articles/2025
updated=$(date --iso-8601=ns)

# Build RSS header & footer
header () {
echo "<?xml version='1.0' encoding='UTF-8' ?>
<rss version='2.0' xmlns:atom='http://www.w3.org/2005/Atom'>" > ~/feedtop
echo "
<channel>
<title>Bloggings - wittamore.com</title>
<link>https://wittamore.com</link>
<description>Ramblings from Brittany, France</description>
<lastBuildDate>$updated</lastBuildDate>
<atom:link href='$rsslink' rel='self' type='application/rss+xml' />
" >> ~/feedtop
}

footer () {
echo "
</channel>

</rss>
" >> ~/feedbottom
}

# Function: Build Item add to feed

item () {
  echo "<item>
  <title>$fullTitle</title><pubDate>$postdate</pubDate>
  <link>$linkadd</link>
  <guid>$linkadd</guid>
  <category> </category>
  <description>$description</description>
</item>" >> ~/feed
}

# Function: Concatenate everything

combine () {
        header
        footer
        cat ~/feedtop ~/feed > ~/feedtb
        cat ~/feedtb ~/feedbottom > $feedname
        rm ~/feedtop ~/feed ~/feedtb ~/feedbottom
}

# Run through files and create rss.xml

if [[ -f $feedname ]]; then
  rm $feedname
fi
touch $feedname
mapfile -t postArray < <(ls -t "$postDir"/*.html)
postNum=0
for posts in "${postArray[@]}"; do
  ((postNum+=1))
  post=$posts
  fullTitle=$(grep -o '>.*</h2>' "$post" | sed 's/\(>\|<\/h2>\)//g')
  postdate=$(grep -o '>.*</h5>' "$post" | sed 's/\(>\|<\/h5>\)//g')
  postname=${post##*/}
  linkadd="$link"/"$postname"
  description=$(sed -n '/<h4>.*/,/*.<\/h4>/{p;q;}' "$post" | sed -e 's/<[^>]\+>/ /g' -e 's|<h4>||g' -e 's|</h4>||g' -e 's|"||g')
  item "$post"
done
  combine
exit