#!/usr/bin/env bash
set -euo pipefail
cd $(dirname "$0")/..

if [ "$#" == 1 ]; then
  BOOK_DIR="$1"
else
  echo "usage: $0 path-to-book-directory"
  exit 1
fi

echo "const books = ["

for METADATA in $(find "$BOOK_DIR" -name 'metadata.json'); do
  DIR=$(dirname "$METADATA")
  COVER=$(ls $DIR/cover.*)

  cat "$METADATA" | head -n -1
  echo ", \"cover\": \"$COVER\""
  echo "},"
done

echo "]"