(
  set -e
  set -o pipefail

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

  base64 < "$HOME/Downloads/school-photo-1.jpg" \
    | tr -d '\r\n' > "$tmp/input.b64"

  jq -n --rawfile image "$tmp/input.b64" '{
    model: "black-forest-labs/flux-3-image",
    prompt: "Make a high resolution photo of the boy, keep his likeness identical as top priority. Light grey background",
    input_references: [{
      type: "image_url",
      image_url: {
        url: ("data:image/jpeg;base64," + $image)
      }
    }]
  }' > "$tmp/request.json"

  curl --fail-with-body --silent --show-error \
    https://openrouter.ai/api/v1/images \
    -H "Content-Type: application/json" \
    -H "Authorization: Bearer $OPENROUTER_API_KEY" \
    --data-binary @"$tmp/request.json" \
    -o "$tmp/response.json"

  jq -er '.data[0].b64_json // error("No image returned")' \
    "$tmp/response.json" \
    | base64 -D > "$tmp/result"

  sips -s format jpeg "$tmp/result" \
    --out "$HOME/Downloads/school-photo-1-no-watermark.jpg"
)