#!/bin/sh

blogtitle="ben's space"
urlroot="https://bvnf.space/blog"
urlblog="https://bvnf.space/blog/"

# HEADER
cat << EOF
<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0">
<channel>
<title>$blogtitle</title>
<link>$urlblog</link>
<copyright>CC-BY 4.0</copyright>
<language>en</language>
<lastBuildDate>$(date "+%a, %e %b %Y %H:%M:%S %z")</lastBuildDate>

EOF

ls -r -- *.txt *.gmi *.html | while read -r f; do
    unset date title desc link in
    # hack for same-day posts
    case "$f" in
	007*) time="01" ;;
	*) time="00" ;;
    esac
    case "$f" in
        index.html) continue ;;
        *.txt)
            link="$urlroot/$f"
            in="${f%.txt}.7"
            date="$(grep '^[.]Dd' "$in" | cut -c 5-)"
            date="$(date -ju -f "%B %d, %Y" +"%a, %d %b %Y 00:00:${time:-00} %z" "$date")"
            title="$(grep '^[.]Nm' "$in" | cut -c 5-)"
            desc=" - $(grep '^[.]Nd' "$in" | cut -c 5-)"
        ;;
        *.gmi)
            link="gemini://gemini.bvnf.space/blog/${f#[0-9][0-9][0-9]-}"
            title="$(sed 1q "$f")"
            date="$(date -ju -f "%B %d, %Y" +"%a, %d %b %Y 00:00:${time:-00} %z" "$(sed 1d "$f")")"
        ;;
        *.html)
            link="$urlroot/$f"
            title="$(sed -n 's/.*<title>\(.*\)<\/title>.*/\1/p' "$f")"
            date="$(date -ju +"%a, %d %b %Y 00:00:${time:-00} %z" "$(sed -n 's/^.*written \([0-9]\{4\}\)-\([0-9]\{2\}\)-\([0-9]\{2\}\).*$/\1\2\30000/p' "$f")")"
        ;;
        *) continue ;;
    esac


    cat <<EOF
<item>
    <title>$title</title>
    <link>$link</link>
    <pubDate>$date</pubDate>
</item>

EOF

done

# FOOTER
cat << EOF
</channel>
</rss>
EOF