#!/usr/bin/env bash
# 查看数据库中的 lastUpdated 与条数，并提示如何用爬虫更新
# 用法: ./scripts/check-db-and-crawler.sh

PROJECT_ROOT="${PROJECT_ROOT:-$(cd "$(dirname "$0")/.." && pwd)}"
DB_PATH="${DB_PATH:-$PROJECT_ROOT/server/data.db}"

echo "=========================================="
echo "数据库与爬虫状态"
echo "DB: $DB_PATH"
echo "=========================================="

if [[ ! -f "$DB_PATH" ]]; then
  echo "数据库文件不存在。请先执行: node server/seed.js"
  exit 1
fi

if command -v sqlite3 &>/dev/null; then
  UPDATED_AT=$(sqlite3 "$DB_PATH" "SELECT updated_at FROM situation WHERE id = 1;" 2>/dev/null || echo "?")
  SU_COUNT=$(sqlite3 "$DB_PATH" "SELECT COUNT(*) FROM situation_update;" 2>/dev/null || echo "?")
  NEWS_COUNT=$(sqlite3 "$DB_PATH" "SELECT COUNT(*) FROM news_content;" 2>/dev/null || echo "?")
  echo "situation.updated_at (前端 lastUpdated): $UPDATED_AT"
  echo "situation_update 条数:                  $SU_COUNT"
  echo "news_content 条数:                       $NEWS_COUNT"
else
  echo "未安装 sqlite3，无法直接查库。可安装: brew install sqlite3"
fi

echo ""
echo "--- 为何数据停在旧日期？ ---"
echo "  • lastUpdated 来自 situation.updated_at。"
echo "  • 已改为：每次爬虫运行都会更新该时间（不再仅在有新资讯时更新）。"
echo "  • 若从未跑爬虫或很久没跑，请执行一次爬虫："
echo ""
echo "  cd $PROJECT_ROOT && python crawler/run_once.py"
echo "  或: npm run crawler:once"
echo ""
echo "  若需定时更新，可启动常驻爬虫: python crawler/main.py"
echo "=========================================="