#!/bin/zsh
set -euo pipefail

ROOT="$(cd "$(dirname "$0")/.." && pwd)"
SOURCE="$ROOT/PHPGuard/Assets.xcassets/AppIcon.appiconset/icon-1024.png"

[[ -f "$SOURCE" ]] || {
    echo "Missing PHPGuard icon: $SOURCE" >&2
    exit 1
}

APP="${1:?Pass the path to PHPGuard.app}"
RESOURCES="$APP/Contents/Resources"

mkdir -p "$RESOURCES"

ICONSET="$(mktemp -d)/PHPGuard.iconset"
mkdir -p "$ICONSET"

for size in 16 32 128 256 512; do
    sips -s format png -z "$size" "$size" "$SOURCE" \
        --out "$ICONSET/icon_${size}x${size}.png" >/dev/null

    double=$((size * 2))

    sips -s format png -z "$double" "$double" "$SOURCE" \
        --out "$ICONSET/icon_${size}x${size}@2x.png" >/dev/null
done

iconutil -c icns "$ICONSET" -o "$RESOURCES/PHPGuard.icns"

/usr/libexec/PlistBuddy \
    -c "Delete :CFBundleIconFile" \
    "$APP/Contents/Info.plist" 2>/dev/null || true

/usr/libexec/PlistBuddy \
    -c "Add :CFBundleIconFile string PHPGuard.icns" \
    "$APP/Contents/Info.plist"

echo "PHPGuard application icon installed."