#!/usr/bin/env bash
# 构建 macOS 版 DCAuth.app，并向 LaunchServices 注册 dcauth:// 协议。
#
# 为什么需要 .app：macOS 只把自定义协议的 URL 以 Apple Event 形式投递，
# 非 Cocoa 的纯命令行程序拿不到（实测 argv 里没有 URL）。这里用 AppleScript
# applet 的 on open location 接住事件，再把 URL 作为 argv 交给 Go 二进制，
# 从而让浏览器点一下就能唤起本机确认窗口，不需要手动执行命令。
set -euo pipefail

if [[ "$(uname -s)" != "Darwin" ]]; then
  echo "[build-macos] 只支持在 macOS 上运行" >&2
  exit 1
fi

ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
APP_PATH="${1:-$HOME/Applications/DCAuth.app}"
LSREGISTER="/System/Library/Frameworks/CoreServices.framework/Frameworks/LaunchServices.framework/Support/lsregister"

VERSION="$(sed -n 's/^const clientVersion = "\(.*\)"$/\1/p' "$ROOT/main.go")"
if [[ -z "$VERSION" ]]; then
  echo "[build-macos] 无法从 main.go 读取 clientVersion" >&2
  exit 1
fi

WORK_DIR="$(mktemp -d)"
trap 'rm -rf "$WORK_DIR"' EXIT

echo "[build-macos] 编译 DCAuth v$VERSION"
(
  cd "$ROOT"
  CGO_ENABLED=0 go build -trimpath -ldflags "-s -w" -o "$WORK_DIR/dcauth" .
)

echo "[build-macos] 生成 AppleScript 壳"
cat > "$WORK_DIR/main.applescript" <<'APPLESCRIPT'
on run
	set bundlePath to POSIX path of (path to me)
	do shell script quoted form of (bundlePath & "Contents/Resources/dcauth")
end run

on open location theURL
	set bundlePath to POSIX path of (path to me)
	do shell script quoted form of (bundlePath & "Contents/Resources/dcauth") & " " & quoted form of theURL
end open location
APPLESCRIPT

rm -rf "$APP_PATH"
mkdir -p "$(dirname "$APP_PATH")"
osacompile -o "$APP_PATH" "$WORK_DIR/main.applescript"
mkdir -p "$APP_PATH/Contents/Resources"
install -m 0755 "$WORK_DIR/dcauth" "$APP_PATH/Contents/Resources/dcauth"

PLIST="$APP_PATH/Contents/Info.plist"
plist_set_string() {
  local entry="$1"
  local value="$2"
  # osacompile 生成的 plist 只有少数键，Set 失败时要带类型 Add。
  /usr/libexec/PlistBuddy -c "Set $entry $value" "$PLIST" 2>/dev/null ||
    /usr/libexec/PlistBuddy -c "Add $entry string $value" "$PLIST"
}
plist_delete() {
  /usr/libexec/PlistBuddy -c "Delete $1" "$PLIST" 2>/dev/null || true
}

plist_set_string ':CFBundleIdentifier' 'com.khhao.dcauth'
plist_set_string ':CFBundleName' 'DCAuth'
plist_set_string ':CFBundleDisplayName' 'DCAuth'
plist_set_string ':CFBundleShortVersionString' "$VERSION"
plist_set_string ':CFBundleVersion' "$VERSION"

plist_delete ':CFBundleURLTypes'
/usr/libexec/PlistBuddy -c 'Add :CFBundleURLTypes array' "$PLIST"
/usr/libexec/PlistBuddy -c 'Add :CFBundleURLTypes:0 dict' "$PLIST"
/usr/libexec/PlistBuddy -c 'Add :CFBundleURLTypes:0:CFBundleURLName string com.khhao.dcauth' "$PLIST"
/usr/libexec/PlistBuddy -c 'Add :CFBundleURLTypes:0:CFBundleURLSchemes array' "$PLIST"
/usr/libexec/PlistBuddy -c 'Add :CFBundleURLTypes:0:CFBundleURLSchemes:0 string dcauth' "$PLIST"

# 后台常驻，不显示 Dock 图标；双击 .app 等同于"启动/查看设备码"。
plist_delete ':LSUIElement'
/usr/libexec/PlistBuddy -c 'Add :LSUIElement bool true' "$PLIST"

echo "[build-macos] 签名并注册协议"
codesign --force --deep --sign - "$APP_PATH" >/dev/null 2>&1
if [[ -x "$LSREGISTER" ]]; then
  "$LSREGISTER" -f "$APP_PATH"
fi

echo
echo "[build-macos] 完成：$APP_PATH"
echo "[build-macos] 浏览器再次点击登录即可直接唤起 DCAuth（无需命令行）。"
echo "[build-macos] 查看设备码：open \"$APP_PATH\""
echo "[build-macos] 停止后台进程：\"$APP_PATH/Contents/Resources/dcauth\" --exit"