import pandas as pd
from utils.s3 import save_csv_to_s3


def app():
    # Check how many properties there are at EPC F/G in Birmingham
    epc_data = pd.read_csv(
        "local_data/all-domestic-certificates/domestic-E08000025-Birmingham/certificates.csv",
        low_memory=False
    )

    # Filter on entries where we have a UPRN
    epc_data = epc_data[~pd.isnull(epc_data["UPRN"])]

    # Get the newest EPC for each UPRN. We use LODGEMENT_DATE as a proxy for this
    epc_data["LODGEMENT_DATE"] = pd.to_datetime(epc_data["LODGEMENT_DATE"])

    epc_data = epc_data.sort_values("LODGEMENT_DATE", ascending=False).drop_duplicates("UPRN")

    epc_data = epc_data[epc_data["CURRENT_ENERGY_RATING"].isin(["F", "G"])]

    one_years_ago = pd.Timestamp.now() - pd.DateOffset(days=int(1 * 365))
    epc_data = epc_data[epc_data["LODGEMENT_DATE"] >= one_years_ago]