"""Logic for s3."""

from functools import cache
import json
from urllib.parse import urlparse

import boto3

from src import config


@cache
def get_client():
    """Get s3 client."""
    return boto3.client('s3', config.AWS_REGION)


def fetch_product_metadata(s3_url):
    """Fetch product metadata from S3."""
    parsed = urlparse(s3_url)
    bucket = parsed.netloc
    key = parsed.path.lstrip('/')
    s3_client = get_client()
    response = s3_client.get_object(Bucket=bucket, Key=key)
    return json.loads(response['Body'].read())