#!/bin/bash
# 双色球数据备份脚本 — 每日凌晨 3:00 执行（抓取完成后 30min）
BACKUP_DIR="/home/vincent/backups/lotto"
SOURCE_DIR="/home/vincent/Studio/lottoData"
RETENTION_DAYS=30

mkdir -p "$BACKUP_DIR"

DATE=$(date +%Y%m%d)
cp "$SOURCE_DIR/双色球历史数据.xlsx" "$BACKUP_DIR/history_${DATE}.xlsx" 2>/dev/null
cp "$SOURCE_DIR/.generation_records.json" "$BACKUP_DIR/records_${DATE}.json" 2>/dev/null

# 保留最近 30 天
find "$BACKUP_DIR" -name 'history_*.xlsx' -mtime +${RETENTION_DAYS} -delete 2>/dev/null
find "$BACKUP_DIR" -name 'records_*.json' -mtime +${RETENTION_DAYS} -delete 2>/dev/null

echo "$(date '+%Y-%m-%d %H:%M:%S') backup complete"