#!/usr/bin/env python3
"""JBT Ops daily backup - keeps last 30 days of db.json backups"""
import shutil, os, glob
from datetime import datetime

DB = "/home/rmlac2fmr/public_html/jn.com/ops/data/db.json"
BACKUP_DIR = "/home/rmlac2fmr/backups"

os.makedirs(BACKUP_DIR, exist_ok=True)

# Create today's backup
today = datetime.now().strftime("%Y-%m-%d")
dest = os.path.join(BACKUP_DIR, f"db-{today}.json")
shutil.copy2(DB, dest)
size = os.path.getsize(dest)
print(f"Backup created: {dest} ({size:,} bytes)")

# Remove backups older than 30 days
backups = sorted(glob.glob(os.path.join(BACKUP_DIR, "db-*.json")))
while len(backups) > 30:
    old = backups.pop(0)
    os.remove(old)
    print(f"Removed old backup: {old}")

print(f"Total backups: {len(glob.glob(os.path.join(BACKUP_DIR, 'db-*.json')))}")