#!/bin/bash
# =============================================================================
# mom-frontend-vue2 前端部署脚本
# 用法：在项目根目录 mom-system-2026/ 下执行  bash deploy/deploy-mom-frontend.sh
# =============================================================================
set -e

# ── 配置 ─────────────────────────────────────────────────────────────────────
SERVER_USER="root"
SERVER_HOST="118.31.75.148"
SERVER_PORT=22
REMOTE_DIR="/www/wwwroot/mymom.suzhouyuqi.com"
BACKUP_DIR="${REMOTE_DIR}/backup"
KEEP_BACKUPS=5

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
FRONTEND_DIR="${PROJECT_ROOT}/mom-frontend-vue2"
DIST_DIR="${FRONTEND_DIR}/dist"

SSH="ssh -p ${SERVER_PORT} ${SERVER_USER}@${SERVER_HOST}"

# Node.js 17+ 与 Vue CLI 4 (webpack 4) 的 OpenSSL 兼容性修复
export NODE_OPTIONS="--openssl-legacy-provider --max-old-space-size=4096"
export PATH="$HOME/.nvm/versions/node/v22.22.0/bin:$PATH"

# ── 工具函数 ──────────────────────────────────────────────────────────────────
log()  { echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*"; }
info() { log "INFO  $*"; }
ok()   { log "OK    $*"; }
err()  { log "ERROR $*" >&2; exit 1; }

# ── 步骤 1：本地构建 ───────────────────────────────────────────────────────────
info "Step 1/3 — Build mom-frontend-vue2 (production)"
cd "${FRONTEND_DIR}"
npm run build:prod
[ -d "${DIST_DIR}" ] || err "构建产物目录不存在: ${DIST_DIR}"
ok "Build OK → ${DIST_DIR}"

# ── 步骤 2：远程备份旧版本 ─────────────────────────────────────────────────────
info "Step 2/3 — Backup current deployment on remote server"
TIMESTAMP=$(date '+%Y%m%d_%H%M%S')
$SSH bash -s << EOF
  set -e
  mkdir -p "${BACKUP_DIR}"
  # 将当前站点目录（排除 backup/ 自身）打包为 tar.gz
  cd "${REMOTE_DIR}"
  FILES=\$(ls | grep -v '^backup$' || true)
  if [ -n "\$FILES" ]; then
    tar -czf "${BACKUP_DIR}/dist_${TIMESTAMP}.tar.gz" \$FILES
    echo "  Backed up → ${BACKUP_DIR}/dist_${TIMESTAMP}.tar.gz"
  else
    echo "  No existing files to backup (first deploy)"
  fi
  # 只保留最近 ${KEEP_BACKUPS} 个备份
  cd "${BACKUP_DIR}"
  ls -t | tail -n +$((${KEEP_BACKUPS} + 1)) | xargs -r rm -f
  echo "  Backup dir now contains: \$(ls | wc -l) file(s)"
EOF
ok "Backup OK"

# ── 步骤 3：上传新版本 ─────────────────────────────────────────────────────────
info "Step 3/3 — Upload dist to remote"
# 清空远程目录（保留 backup），再上传
$SSH "cd ${REMOTE_DIR} && find . -mindepth 1 -maxdepth 1 ! -name backup -exec rm -rf {} + 2>/dev/null || true"
scp -r -P ${SERVER_PORT} "${DIST_DIR}"/* "${SERVER_USER}@${SERVER_HOST}:${REMOTE_DIR}/"
ok "Upload OK"

info "============================================"
info "mom-frontend-vue2 部署完成！"
info "访问地址：http://${SERVER_HOST}  或  https://mymom.suzhouyuqi.com"
info "============================================"