from database.setup_db import get_database
from datetime import datetime
import uuid
from pymongo import DESCENDING
def get_current_week_identifier():
    """
    Generate a week identifier based on the current year and week number.
    Example: '2023_45' for the 45th week of 2023.
    """
    now = datetime.now()
    year = now.year
    week_number = now.isocalendar()[1]  # ISO week number
    return f"{year}_Week_{week_number}"
def insert_weekly_task_data(json_data,):
    """
    Insert JSON data into the weekly_tasks collection.

    Args:
        json_data (dict): JSON object containing task data.
    """
    db = get_database()
    collection = db["weekly_tasks"]
    # Generate the current week identifier
    week_identifier = get_current_week_identifier()
    unique_id = str(uuid.uuid4())
    # Check if a document for the given week already exists
    existing_document = collection.find_one({"unique_id": unique_id})
    if existing_document:
        print(f"Document with id: {unique_id} already exists. Skipping insert.")
        return

    # Insert the document if it doesn't already exist
    document = {
        "week": week_identifier,
        "unique_id": unique_id,
        "tasks": json_data,
        "created_at": datetime.now()
    }
    result = collection.insert_one(document)
    print(f"Inserted document with ID: {result.inserted_id}")


def fetch_recent_two_entries():
    """
    Fetch the two most recent entries from the weekly_tasks collection
    based on the created_at timestamp.
    
    Returns:
        list: A list of the two most recent documents from the collection.
    """
    db = get_database()
    collection = db["weekly_tasks"]

    # Query to fetch the two most recent entries
    recent_entries = list(
        collection.find().sort("created_at", DESCENDING).limit(2)
    )
    return recent_entries