#!/usr/bin/env bash

# Get the path to the feed.rss file
feed_file="feed.rss"

# Remove .toml files in the cache directory
find ~/.cache/rsspls -type f -name "*.toml" -delete

# Remove .rss files in the current directory
find . -maxdepth 1 -type f -name "*.rss" -delete

# Call rsspls to generate the RSS feeds
rsspls

# Format the feed.rss file using xmlstarlet
xmlstarlet fo -t "$feed_file" >formatted_feed_file.xml
mv formatted_feed_file.xml "$feed_file"

# Iterate over all .rss files in the directory
for rss_file in *.rss; do
    # Skip the feed.rss file itself
    if [ "$rss_file" == "$feed_file" ]; then
        continue
    fi

    # Format the RSS file using xmlstarlet
    xmlstarlet fo -t "$rss_file" >formatted_rss_file.xml
    mv formatted_rss_file.xml "$rss_file"

    # Get the channel link from the RSS file
    channel_link=$(xmlstarlet sel -t -v "rss/channel/link" "$rss_file")

    # Update the second link tag
    sed -i "s#<link>.*<\/link>#<link>$channel_link<\/link>#" "$rss_file"

    # Get the item tag's info from the current .rss file
    item_info=$(xmlstarlet sel -t -c "rss/channel/item" "$rss_file")

    # Find the position of the last </item> in feed.rss
    last_item_position=$(grep -n "</item>" "$feed_file" | tail -n1 | cut -d: -f1)

    # Splice the item tag's info into feed.rss after the last </item>
    sed -i "${last_item_position}r /dev/stdin" "$feed_file" <<<"$item_info"
done

# Remove all .rss files except for feed.rss
find . -maxdepth 1 -type f -name "*.rss" ! -name "$feed_file" -exec rm {} +

# replace old feed.rss with new feed
mv ./feed.rss ../dist/assets/