{{ $path := .Page.Path }}
{{ $isbn := "" }}
{{ $key := "" }}

{{ with .Get 0 }}
  {{ if eq (len .) 13 }}
    {{ $isbn = . }}
  {{ else }}
    {{ $key = . }}
  {{ end }}
{{ end }}

{{ $isbn := .Get 0 }}

{{ if not $key }}
  {{ $query := (dict "type" "/type/edition" "isbn_13" $isbn) | jsonify }}
  {{ $thing := getJSON (printf "https://openlibrary.org/api/things?query=%s" ($query)) }}
  {{ if and (eq $thing.status "ok") (ge (len $thing.result) 1) }}
    {{ $key = index $thing.result 0 }}
  {{ end }}
{{ end}}

{{ if $key }}
  {{ $bookObj := getJSON (printf "https://openlibrary.org/api/get?key=%s" $key) }}
  {{ if eq $bookObj.status "ok" }}
    {{ $isbn = index $bookObj.result.isbn_13 0 }}

    {{ $authors := slice }}
    {{ range $bookObj.result.authors }}
      {{ $authorObj := getJSON (printf "https://openlibrary.org/api/get?key=%s" .key) }}
      {{ if eq $authorObj.status "ok" }}
        {{ $authors = $authors | append (dict "name" $authorObj.result.name "url" (printf "https://openlibrary.org%s" $authorObj.result.key)) }}
      {{ end }}
    {{ end }}

    {{ $coverURL := (printf "https://covers.openlibrary.org/b/isbn/%s-M.jpg" $isbn)}}
    {{ if not $isbn }}
      {{ $coverURL = printf "https://covers.openlibrary.org/b/id/%.0f-M.jpg" (index $bookObj.result.covers 0) }}
    {{ end }}

    {{ $cover := "" }}
    {{ with resources.GetRemote $coverURL }}
      {{ with .Err }}
      {{ else }}
        {{ $cover = .Content | resources.FromString (replaceRE `\.md$` ".jpg" $path) }}
      {{ end }}
    {{ end }}

    {{ $book := dict "title" $bookObj.result.title "authors" $authors "url" (printf "https://openlibrary.org%s" $key) "cover" $cover }}
    {{ partial "book.html" $book }}
  {{ end }}
{{ end }}