#!/usr/bin/env bash
# [打包] 把 adb 同步到 third_party/platform-tools，供安装包内置
set -euo pipefail

ROOT="$(cd "$(dirname "$0")/.." && pwd)"
DEST="$ROOT/third_party/platform-tools"
mkdir -p "$DEST"

copy_from() {
  local src="$1"
  echo "→ 从 $src 复制"
  # 尽量拷整个 platform-tools 目录（含依赖），至少保证有 adb
  local dir
  dir="$(dirname "$src")"
  if [[ -d "$dir" ]] && [[ "$(basename "$dir")" == "platform-tools" ]]; then
    rsync -a --delete "$dir/" "$DEST/"
  else
    cp -f "$src" "$DEST/adb"
    chmod +x "$DEST/adb"
  fi
}

# 1) 本机已有 adb
if command -v adb >/dev/null 2>&1; then
  ADB_BIN="$(command -v adb)"
  # brew 的 adb 常是 symlink，解析到真实 platform-tools
  if [[ -L "$ADB_BIN" ]]; then
    ADB_BIN="$(python3 -c "import os,sys; print(os.path.realpath(sys.argv[1]))" "$ADB_BIN")"
  fi
  copy_from "$ADB_BIN"
  echo "✓ 已同步到 $DEST"
  "$DEST/adb" version | head -2
  exit 0
fi

# 2) 下载 Google 官方 mac/linux/win 包（按当前系统）
OS="$(uname -s)"
case "$OS" in
  Darwin) ZIP_URL="https://dl.google.com/android/repository/platform-tools-latest-darwin.zip" ;;
  Linux)  ZIP_URL="https://dl.google.com/android/repository/platform-tools-latest-linux.zip" ;;
  MINGW*|MSYS*|CYGWIN*) ZIP_URL="https://dl.google.com/android/repository/platform-tools-latest-windows.zip" ;;
  *) echo "请手动把对应平台的 platform-tools 放到 $DEST"; exit 1 ;;
esac

TMP="$(mktemp -d)"
echo "→ 下载 $ZIP_URL"
curl -L --fail -o "$TMP/pt.zip" "$ZIP_URL"
unzip -q "$TMP/pt.zip" -d "$TMP"
rsync -a --delete "$TMP/platform-tools/" "$DEST/"
rm -rf "$TMP"
chmod +x "$DEST/adb" 2>/dev/null || true
echo "✓ 已下载并同步到 $DEST"
"$DEST/adb" version | head -2