#!/usr/bin/env bash
set -eu

ROOT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
ICONS_DIR="${ROOT_DIR}/src-tauri/icons"
ICONSET="${ICONS_DIR}/icon.iconset"
SOURCE="${ICONS_DIR}/icon.png"
OUTPUT="${ICONS_DIR}/icon.icns"

if [ -f "${OUTPUT}" ]; then
  echo "icon.icns already exists, skipping generation."
  exit 0
fi

echo "Generating ${OUTPUT} from ${SOURCE}..."

mkdir -p "${ICONSET}"

sips -z 16   16   "${SOURCE}" --out "${ICONSET}/icon_16x16.png"
sips -z 32   32   "${SOURCE}" --out "${ICONSET}/icon_16x16@2x.png"
sips -z 32   32   "${SOURCE}" --out "${ICONSET}/icon_32x32.png"
sips -z 64   64   "${SOURCE}" --out "${ICONSET}/icon_32x32@2x.png"
sips -z 128  128  "${SOURCE}" --out "${ICONSET}/icon_128x128.png"
sips -z 256  256  "${SOURCE}" --out "${ICONSET}/icon_128x128@2x.png"
sips -z 256  256  "${SOURCE}" --out "${ICONSET}/icon_256x256.png"
sips -z 512  512  "${SOURCE}" --out "${ICONSET}/icon_256x256@2x.png"
sips -z 512  512  "${SOURCE}" --out "${ICONSET}/icon_512x512.png"
sips -z 1024 1024 "${SOURCE}" --out "${ICONSET}/icon_512x512@2x.png"

iconutil -c icns "${ICONSET}" -o "${OUTPUT}"
rm -rf "${ICONSET}"

echo "Generated ${OUTPUT}"