set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

ROOT_DIR="$(cd "$SCRIPT_DIR/.." && pwd)"

ICONS_DIR="$ROOT_DIR/branding/icons"

SRC="${1:-$ICONS_DIR/levelcode-source.png}"

OUT_ICNS="$ICONS_DIR/levelcode.icns"

OUT_PNG="$ICONS_DIR/levelcode-1024.png" # for Linux builds

command -v sips >/dev/null || { echo "sips not found (run on macOS)"; exit 1; }

command -v iconutil >/dev/null || { echo "iconutil not found (run on macOS)"; exit 1; }

[ -f "$SRC" ] || { echo "Source PNG not found: $SRC

Save your icon there (or pass a path) and re-run."; exit 1; }

mkdir -p "$ICONS_DIR"

TMP="$(mktemp -d)"

trap 'rm -rf "$TMP"' EXIT

cp "$SRC" "$TMP/master.png"

W="$(sips -g pixelWidth "$TMP/master.png" | awk '/pixelWidth/{print $2}')"

H="$(sips -g pixelHeight "$TMP/master.png" | awk '/pixelHeight/{print $2}')"

S=$(( W > H ? W : H ))

if [ "$W" != "$H" ]; then

echo "[make-icon] Source is ${W}x${H}; padding to ${S}x${S} (black) to square it."

sips --padToHeightWidth "$S" "$S" --padColor 000000 "$TMP/master.png" >/dev/null

sips -z 1024 1024 "$TMP/master.png" >/dev/null

cp "$TMP/master.png" "$OUT_PNG"

ICONSET="$TMP/level.iconset"; mkdir -p "$ICONSET"

gen() { sips -z "$1" "$1" "$TMP/master.png" --out "$ICONSET/$2" >/dev/null; }

gen 16 icon_16x16.png

gen 32 icon_16x16@2x.png

gen 32 icon_32x32.png

gen 64 icon_32x32@2x.png

gen 128 icon_128x128.png

gen 256 icon_128x128@2x.png

gen 256 icon_256x256.png

gen 512 icon_256x256@2x.png

gen 512 icon_512x512.png

gen 1024 icon_512x512@2x.png

iconutil -c icns "$ICONSET" -o "$OUT_ICNS"

echo "[make-icon] Wrote $OUT_ICNS"

if [ -d "$ROOT_DIR/vscode/resources/darwin" ]; then

cp "$OUT_ICNS" "$ROOT_DIR/vscode/resources/darwin/code.icns"

echo "[make-icon] Installed into vscode/resources/darwin/code.icns"

echo "[make-icon] Done. Rebuild with ./scripts/build-macos.sh to see the new app icon."