#!/bin/sh
# Settings
client="ass"
url=""
user=""
password=""
# Example: $HOME/.cache/$client
cache_folder=""
cache_file="$cache_folder/list"

# Get album catalog number if it's available (Requires proper tags).
get_cn(){
  album="$(echo "$@" | tr -d '()[]')"
  # Try looking up directly. (Should be accurate)
  curl -sL "https://vgmdb.net/search?" --data-urlencode "q=$album" | \
    grep -A1 "Catalog Number" | tail -n1 | \
    sed 's/<[^>]*>//g' | sed 's/^[ \t]*//;s/[ \t]*$//'
  
  # If multiple albums were found choose the first one. (Not accurate)
  curl -s "https://vgmdb.net/search?" --data-urlencode "q=$album" | \
    grep -o '<span class="catalog album-bonus">[^<]*' | \
    sed 's/.*>//' | grep -v '^N/A$' | head -n1
}

# Get the latest recently added album with curl in "ID|Artist - Album" format.
get_albums(){
  curl -s "$url/rest/getAlbumList2.view?u=$user&p=$password&v=1.16.1&c=$client&f=json&type=newest" | \
    jq -r '.["subsonic-response"].albumList2.album[] | "\(.id)|\(.artist) - \(.name)"'
}

mkdir -p "$cache_folder" && touch "$cache_file"

get_albums | while IFS="|" read -r album_id album_full; do
  album_name="$(echo "$album_full" | sed 's/^[^-]* - //')"
  catalog_number=$(get_cn "$album_name" | sed 's/[[:space:]]*$//' | tr -d '\r' | sed 's/[^[:print:]\t]//g')

  if [ -n "$catalog_number" ]; then
    entry="$(printf "%s [%s]" "$album_full" "$catalog_number")"
  else
    entry="$album_full"
  fi

  if grep -Fxq "$entry" "$cache_file"; then
    exit 0
  else
    echo "$entry" | tee -a "$cache_file"; echo "$url/library/albums/$album_id"
    echo "$url/rest/getCoverArt.view?id=$album_id&u=$user&p=$password&v=1.16.1&c=$client&f=json"
  fi
done