"""
Uploads the latest scraped menu JSON to DynamoDB.
Used by the GitHub Actions weekly workflow after scraping.
"""

import json
import os
import sys
from datetime import datetime
from decimal import Decimal
from pathlib import Path

import boto3

PROJECT_ROOT = Path(__file__).resolve().parents[1]
OUTPUT_DIR = PROJECT_ROOT / "output"
TABLE_NAME = os.environ.get("TABLE_NAME", "meal-order-manager-orders")


def convert_floats(obj):
    if isinstance(obj, float):
        return Decimal(str(obj))
    if isinstance(obj, dict):
        return {k: convert_floats(v) for k, v in obj.items()}
    if isinstance(obj, list):
        return [convert_floats(i) for i in obj]
    return obj


def main():
    files = sorted(OUTPUT_DIR.glob("menu-*.json"), reverse=True)
    if not files:
        print("Error: No menu JSON found. Run scrape_menu.py first.", file=sys.stderr)
        sys.exit(1)

    with open(files[0]) as f:
        menu = json.load(f)

    week = datetime.now().strftime("%Y-W%U")
    table = boto3.resource("dynamodb").Table(TABLE_NAME)

    import time
    item = {
        "PK": f"WEEK#{week}",
        "SK": "MENU",
        "form_status": "open",
        "scraped_at": menu.get("scraped_at"),
        "menu_url": menu.get("menu_url"),
        "meal_count": menu.get("meal_count"),
        "meals": convert_floats(menu.get("meals", [])),
        "ttl": int(time.time()) + (90 * 86400),
    }

    table.put_item(Item=item)
    print(f"Uploaded menu for {week} to DynamoDB ({len(menu.get('meals', []))} meals)")


if __name__ == "__main__":
    main()