import csv
from datetime import datetime

# Create timestamp strings for logs and screen
def timestamper():
    log_timestamp: str = datetime.strftime(datetime.now(), '%Y%m%d%H%M%S.%f')[:-3]
    file_timestamp: str = datetime.strftime(datetime.now(), '%Y%m%d%I%M')
    return log_timestamp, file_timestamp

# Write data to any of the logfiles
def log_data(fixed_file_stamp: str, data_file: str, data_line: float, remark: str|None):
    log_stamp, _ = timestamper()

    with open("pid-balancer_" + data_file + "_data_" + fixed_file_stamp + ".csv", "a") as data_file:
        data_writer = csv.writer(data_file)
        data_writer.writerow([log_stamp,data_line, remark])