#!/usr/bin/env bash
# 在生产机上初始化 Staging 目录（同机双栈，一次性）
# 用法（SSH 到服务器后）:
#   APP_ROOT=/opt/dukang bash /opt/dukang/deploy/bootstrap-staging.sh
# 或本机:
#   ssh root@host 'bash -s' < deploy/bootstrap-staging.sh
set -euo pipefail

PROD_ROOT="${PROD_ROOT:-/opt/dukang}"
STAGING_ROOT="${STAGING_ROOT:-/opt/dukang-staging}"
GIT_REMOTE_URL="${GIT_REMOTE_URL:-}"
GIT_BRANCH="${GIT_BRANCH:-dev}"

if [[ -d "$STAGING_ROOT/.git" ]]; then
  echo "==> 已存在 $STAGING_ROOT，跳过 clone"
else
  if [[ -z "$GIT_REMOTE_URL" ]]; then
    if [[ -d "$PROD_ROOT/.git" ]]; then
      GIT_REMOTE_URL="$(git -C "$PROD_ROOT" remote get-url origin)"
    else
      echo "错误: 请设置 GIT_REMOTE_URL，或确保 $PROD_ROOT 为 git 仓库" >&2
      exit 1
    fi
  fi
  echo "==> clone $GIT_REMOTE_URL → $STAGING_ROOT (branch $GIT_BRANCH)"
  git clone --branch "$GIT_BRANCH" "$GIT_REMOTE_URL" "$STAGING_ROOT"
fi

mkdir -p "$STAGING_ROOT/server/dukang-api"
if [[ ! -f "$STAGING_ROOT/server/dukang-api/.env.staging" ]]; then
  if [[ -f "$STAGING_ROOT/server/dukang-api/.env.staging.example" ]]; then
    cp "$STAGING_ROOT/server/dukang-api/.env.staging.example" \
      "$STAGING_ROOT/server/dukang-api/.env.staging"
    echo "==> 已生成 .env.staging（请编辑 DATABASE_URL / Redis / 微信后 sync 或本机改）"
  else
    echo "WARN: 无 .env.staging.example，请手动创建 .env.staging"
  fi
fi

echo "==> 下一步:"
echo "  1. 创建 RDS 库 dukang_staging，填好 $STAGING_ROOT/server/dukang-api/.env.staging"
echo "  2. DNS: api-test/user-test/shop-test/partner-test/admin-test.dukanghaoke.com → 本机"
echo "  3. 启用 nginx: ln -sf $STAGING_ROOT/deploy/nginx-dukang-staging.conf /etc/nginx/sites-enabled/"
echo "     nginx -t && systemctl reload nginx（证书需含 *-test SAN）"
echo "  4. 本机发版: bash deploy/deploy-staging.sh -- --seed --accept-data-loss"
echo "==> bootstrap 完成"