"""Email a zipped report file."""

import os
import pprint

from dotenv import load_dotenv

from royalties.email_report import TaxReportEmail
from royalties.period_ids import PeriodIds

load_dotenv()

pp = pprint.PrettyPrinter(indent=2, compact=True, width=100)


def validate_args():
    """Validate environment variables for the job."""
    period_ids_list = os.environ.get('PERIOD_IDS').split(',')
    period_ids = PeriodIds(period_ids_list)
    payment_interval = os.environ.get('PAYMENT_INTERVAL')
    assert payment_interval in ['month', 'quarter']
    file_path = os.environ.get('ZIP_FILE_PATH')
    assert os.path.isfile(file_path)
    from_email = os.environ.get('FROM_EMAIL')
    assert from_email
    to_emails = [(i.strip()) for i in os.environ.get('TO_EMAILS').split(',')]
    assert len(to_emails) >= 1
    return file_path, from_email, to_emails, payment_interval, period_ids


def execute():
    """Execute the email_report script."""
    file_path, from_email, to_emails, \
        payment_interval, period_ids = validate_args()
    new_report = TaxReportEmail(
        file_path,
        from_email,
        to_emails,
        payment_interval,
        period_ids
    )
    print('Sending report via email:')
    pp.pprint({
        'file': file_path,
        'from': from_email,
        'to': to_emails
    })
    new_report.build_email()
    result = new_report.trigger_email()
    print('RESULT:')
    pp.pprint(result)


if __name__ == '__main__':
    execute()