122 lines
3.9 KiB
Python
122 lines
3.9 KiB
Python
import logging
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from dataclasses import asdict
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from datetime import datetime, timezone
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from functools import cache
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from motor.motor_asyncio import AsyncIOMotorClient, AsyncIOMotorCollection
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from pymongo import UpdateOne
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from pymongo.errors import PyMongoError
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from monitor_utils.config import get_settings
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from monitor_utils.models import Product
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LOGGER = logging.getLogger(__name__)
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def get_collection(collection_name: str) -> AsyncIOMotorCollection:
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settings = get_settings()
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return get_mongo_client()[settings.mongo_database_name][collection_name]
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@cache
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def get_mongo_client() -> AsyncIOMotorClient:
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settings = get_settings()
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return AsyncIOMotorClient(
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settings.mongo_url,
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maxPoolSize=200,
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minPoolSize=10,
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retryWrites=True,
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retryReads=True,
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tz_aware=True,
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tzinfo=timezone.utc,
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)
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async def get_product_from_database(
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collection: AsyncIOMotorCollection,
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product_id: str,
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) -> dict | None:
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return await collection.find_one({"_id": product_id})
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async def add_products_to_database(
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products: list[Product],
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collection: AsyncIOMotorCollection,
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category_identifier: str,
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) -> None:
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if not products:
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return
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composite_ids = [f"{p.product_id}_{category_identifier}" for p in products]
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cursor = collection.find({"_id": {"$in": composite_ids}}, {"currentPrice": 1})
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existing_prices = {str(doc["_id"]): doc.get("currentPrice") async for doc in cursor}
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ops = []
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for product in products:
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document = convert_product_to_mongo(product, category_identifier)
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doc_id = document["_id"]
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old_price = existing_prices.get(doc_id)
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new_price = document.get("currentPrice")
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price_dropped = old_price is None or (
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new_price is not None and new_price < old_price
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)
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if price_dropped:
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document["webhookSent"] = False
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document["priceBeforeDrop"] = old_price
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set_on_insert = {"discoveredDate": datetime.now(timezone.utc)}
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if not price_dropped:
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set_on_insert["webhookSent"] = False
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ops.append(
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UpdateOne(
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{"_id": doc_id},
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{"$set": document, "$setOnInsert": set_on_insert},
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upsert=True,
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)
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)
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try:
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await collection.bulk_write(ops, ordered=False)
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except PyMongoError:
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LOGGER.exception(f"{category_identifier} - Failed to add products to database!")
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raise
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def convert_product_to_mongo(product: Product, category_identifier: str) -> dict:
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data = asdict(product)
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metadata = data["metadata"]
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timing = data["timing"]
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pricing = data["pricing"]
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availability = data["availability"]
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current_price = pricing["current_price"]
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original_price = pricing["original_price"]
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if isinstance(current_price, str):
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current_price = float(current_price.replace(",", ""))
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original_price = float(original_price.replace(",", ""))
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return {
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"_id": f"{data['product_id']}_{category_identifier}",
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"title": data["title"],
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"url": data["url"],
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"currentPrice": current_price,
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"originalPrice": original_price,
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"percentage": metadata["percentage"],
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"imageUrl": metadata["image_url"],
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"customizationIndex": metadata["customization_index"],
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"memberNonMemberComparison": metadata["member_non_member_comparison"],
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"overstockText": metadata["overstock_text"],
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"startDate": timing["start_date"],
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"endDate": timing["end_date"],
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"priceBeforeDrop": pricing["price_before_drop"],
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"eduPrice": pricing["edu_price"],
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"available": availability["available"],
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"condition": availability["condition"],
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"appExclusive": availability["app_exclusive"],
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"memberPick": availability["member_pick"],
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"memberDeal": availability["member_deal"],
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}
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