#!/usr/bin/env bash
# Part of JoeyLib, Copyright (c) 2026 Scott Duensing, under the MIT License.
# See LICENSE.md for license information.
# SPDX-License-Identifier: MIT
#
# Pack a linked macOS program into its app, as make/macos.mk's packing step:
# the program as Contents/MacOS/NAME (NAME the app's, without .app), and
# Contents/Info.plist, which tells macOS that is the program to run, the
# app's identifier and title, its icon (Contents/Resources/icon.icns, baked
# by make beside its DATA), the oldest macOS it runs on (cc.sh's), and that
# it draws at a Retina screen's own resolution. The program's Apple silicon
# half carries the ad hoc signature zig gave it, which a copy keeps.
#
# Usage: packApp.sh PROGRAM NAME.app IDENTIFIER TITLE

set -euo pipefail

if [[ $# -ne 4 ]]; then
    echo "usage: $0 PROGRAM NAME.app IDENTIFIER TITLE" >&2
    exit 2
fi

program=$1
app=$2
identifier=$3
title=$4
name=$(basename "$app" .app)
minimum=$("$(dirname "$0")/cc.sh" --minimum)

# The title as XML text.
title=${title//&/&}
title=${title//</&lt;}
title=${title//>/&gt;}

mkdir -p "$app/Contents/MacOS" "$app/Contents/Resources"
cp -f "$program" "$app/Contents/MacOS/$name"
cat > "$app/Contents/Info.plist" <<EOF
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>CFBundleDevelopmentRegion</key>
	<string>en</string>
	<key>CFBundleDisplayName</key>
	<string>$title</string>
	<key>CFBundleExecutable</key>
	<string>$name</string>
	<key>CFBundleIconFile</key>
	<string>icon</string>
	<key>CFBundleIdentifier</key>
	<string>$identifier</string>
	<key>CFBundleInfoDictionaryVersion</key>
	<string>6.0</string>
	<key>CFBundleName</key>
	<string>$name</string>
	<key>CFBundlePackageType</key>
	<string>APPL</string>
	<key>LSMinimumSystemVersion</key>
	<string>$minimum</string>
	<key>NSHighResolutionCapable</key>
	<true/>
</dict>
</plist>
EOF