# Browse and view German supermarket flyers (Lidl, Aldi, REWE, Kaufland, Netto)
{
  writers,
  curl,
  jq,
  fzf,
  zathura,
  coreutils,
  htmlq,
  gnugrep,
  gnused,
  lib,
}:
writers.writeDashBin "prospekte" ''
  export PATH=${lib.makeBinPath [ curl jq fzf zathura coreutils htmlq gnugrep gnused ]}:$PATH

  lidl() {
    echo LIDL
    curl -sSL 'https://endpoints.lidl-flyer.com/v3/region-overview/lidl/de-DE/0.json' \
      | jq -r '
        .categories
        | map(select(.name == "Filial-Angebote") | .subcategories | map(.flyers))
        | flatten
        | flatten
        | .[]
        | .pdfUrl
      '
  }

  aldi_nord() {
    echo ALDI nord
    echo 'https://magazine.aldi-nord.de/aldi-nord/aldi-aktuell/GetPDF.ashx'
    echo 'https://magazine.aldi-nord.de/aldi-nord/aldi-vorschau/GetPDF.ashx'
  }

  rewe_berlin() {
    store_id=662366923
    publisher_id=1062

    echo REWE
    curl -sSL "https://www.bonialserviceswidget.de/de/stores/$store_id/brochures?storeId=$store_id&publisherId=$publisher_id" | while read -r brochure_id; do
      curl -sSL "https://www.bonialserviceswidget.de/de/v5/brochureDetails/$brochure_id?publisherId=$publisher_id" | jq -r .pdfUrl
    done
  }

  kaufland() {
    region_code=8920
    echo KAUFLAND
    curl -sSL https://filiale.kaufland.de/prospekte.html | htmlq --attribute href '.flyer a' | grep -Eo 'DE_de_KDZ[^/]*' | sed "s/_3000_/_''${region_code}_/" | while read -r flyer_id; do
      curl -sSL "https://endpoints.leaflets.kaufland.com/v3/$flyer_id/flyer.json?regionCode=$region_code" | jq -r .flyer.pdfUrl
    done
  }

  netto_schwarz() {
    echo 'NETTO (schwarz)'
    curl -sSL 'https://squid-api.tjek.com/v2/catalogs?dealer_ids=90f2VL&order_by=created' \
      | jq -r '.[] | .id' \
      | while read -r flyer_id; do
        curl -sSL "https://squid-api.tjek.com/v2/catalogs/$flyer_id/download" \
          | jq -r .pdf_url
      done
  }

  dir="$(mktemp -d)"
  trap 'rm -rf "$dir"' EXIT

  prospekt_url="$( (
    lidl
    aldi_nord
    rewe_berlin
    kaufland
    netto_schwarz
  ) | fzf)"

  curl -sSL "$prospekt_url" -o "$dir/prospekt.pdf"
  zathura "$dir/prospekt.pdf"
''