better cats!

packages/whst/default.nix

@@ -1,6 +1,10 @@
 {
   writeShellScriptBin,
+  imv,
+  curl,
+  imagemagick,
 }:
+
 writeShellScriptBin "whst" ''
   print_help () {
     cat << EOF
@@ -53,15 +57,32 @@ writeShellScriptBin "whst" ''
 
   url="https://http.cat/$status_code"
 
-  xdg-open "$url" >/dev/null 2>&1
+  tmpfile="$(mktemp --suffix=.jpg)"
 
-  ret=$?
-
-  if (( ret != 0 )); then
-    echo "Failed to open browser automatically. Here's the URL instead:"
-    echo "$url"
+  if ! ${curl}/bin/curl -fsSL "$url" -o "$tmpfile"; then
+    echo "Error: Failed to fetch image for status code $status_code" >&2
+    rm -f "$tmpfile"
     exit 1
   fi
 
+  dims="$(${imagemagick}/bin/identify -format '%w %h' "$tmpfile" 2>/dev/null)"
+  if [ -z "$dims" ]; then
+    echo "Error: Failed to determine image size." >&2
+    rm -f "$tmpfile"
+    exit 1
+  fi
+
+  # Split into width and height using shell
+  set -- $dims
+  width="$1"
+  height="$2"
+
+  if ! ${imv}/bin/imv -W "$width" -H "$height" "$tmpfile"; then
+    echo "Error: Failed to display image with imv." >&2
+    rm -f "$tmpfile"
+    exit 1
+  fi
+
+  rm -f "$tmpfile"
   exit 0
 ''