#!/usr/bin/env bash
# 部署 laic-frontend 到生产 nginx 目录
#
# 用法:
#   npm run deploy
#   ./scripts/deploy.sh
#   ./scripts/deploy.sh --skip-build
#
# 依赖:
#   - Node.js / npm
#   - ssh 能免密登录 DEPLOY_HOST（默认 jg-serv1，见 ~/.ssh/config）
#
# 可选环境变量:
#   DEPLOY_HOST=jg-serv1
#   DEPLOY_PATH=/usr/share/nginx/laic-frontend/dist

set -euo pipefail

ROOT="$(cd "$(dirname "$0")/.." && pwd)"
cd "$ROOT"

DEPLOY_HOST="${DEPLOY_HOST:-jg-serv1}"
DEPLOY_PATH="${DEPLOY_PATH:-/usr/share/nginx/laic-frontend/dist}"
SKIP_BUILD=0

for arg in "$@"; do
  case "$arg" in
    --skip-build) SKIP_BUILD=1 ;;
    -h|--help)
      sed -n '2,20p' "$0"
      exit 0
      ;;
    *)
      echo "未知参数: $arg" >&2
      echo "支持: --skip-build | --help" >&2
      exit 1
      ;;
  esac
done

need() {
  command -v "$1" >/dev/null 2>&1 || {
    echo "缺少命令: $1" >&2
    exit 1
  }
}

need npm
need ssh
need tar

echo "==> 检查 SSH: $DEPLOY_HOST"
if ! ssh -o BatchMode=yes -o ConnectTimeout=8 "$DEPLOY_HOST" 'echo ok' >/dev/null; then
  echo "无法免密 SSH 到 $DEPLOY_HOST。请先配置 ~/.ssh/config 与密钥。" >&2
  exit 1
fi

if [[ "$SKIP_BUILD" -eq 0 ]]; then
  echo "==> npm run build"
  npm run build
else
  echo "==> 跳过 build（--skip-build）"
fi

if [[ ! -d dist ]] || [[ -z "$(ls -A dist 2>/dev/null || true)" ]]; then
  echo "dist/ 不存在或为空，请先构建。" >&2
  exit 1
fi

# 清理本地 dist 里的 macOS 垃圾，避免打进包
find dist \( -name '.DS_Store' -o -name '._*' -o -name '.AppleDouble' \) -delete 2>/dev/null || true

echo "==> 同步 dist/ -> ${DEPLOY_HOST}:${DEPLOY_PATH}"
# COPYFILE_DISABLE 避免 macOS 再生成 AppleDouble；远端 xattr 告警可忽略
COPYFILE_DISABLE=1 tar -C dist -czf - \
  --exclude='.DS_Store' \
  --exclude='._*' \
  --exclude='.AppleDouble' \
  . \
  | ssh -o BatchMode=yes "$DEPLOY_HOST" \
    "mkdir -p '$DEPLOY_PATH' && find '$DEPLOY_PATH' -mindepth 1 -delete && tar -C '$DEPLOY_PATH' -xzf -"

echo "==> 校验远端文件"
ssh -o BatchMode=yes "$DEPLOY_HOST" \
  "test -f '$DEPLOY_PATH/index.html' && ls -lah '$DEPLOY_PATH' | head -20"

echo "DEPLOY_OK  host=$DEPLOY_HOST  path=$DEPLOY_PATH"