#!/usr/bin/env python3
"""
If daily processing crashed, files will be in
2 directories, trigger an email if a file is left over
"""
import pprint
import pathlib
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
import shutil
import os

THIS_DIRECTORY = pathlib.Path(__file__).parent

INCOMING_DIRECTORY = THIS_DIRECTORY / "incoming_orders"
SHIPMENTS_DIRECTORY = THIS_DIRECTORY / "incoming_shipments"
SOH_IMPORT_DIRECTORY = THIS_DIRECTORY / "to_import_SOH"
NEW_FILES_DIRECTORY = THIS_DIRECTORY / "new_files_from_ftp"
PROBLEMS_DIRECTORY = THIS_DIRECTORY / "problems"

SOH_IMPORT_DIRECTORY = THIS_DIRECTORY / "to_import_SOH"
SDH_IMPORT_DIRECTORY = THIS_DIRECTORY / "to_import_SDH"

def main():
    """
    Check for leftover files which means something unexpected happened. Then clean the files
    so there isn't a mess for the next run
    """
    file_count = []
    for file in INCOMING_DIRECTORY.iterdir():
        if file.name[-4:] == '.csv':#move the file that drove the process
            file_count.append(f'order: {file.name}')
            shutil.move(file, PROBLEMS_DIRECTORY / file.name)
            for file in SOH_IMPORT_DIRECTORY.iterdir():#delete any import files we were in the middle of
                if file.name[-4:] == '.dat':
                    os.remove(file)
    for file in SHIPMENTS_DIRECTORY.iterdir():
        if file.name[-4:] == '.csv':
            file_count.append(f'shipment: {file.name}')
            shutil.move(file, PROBLEMS_DIRECTORY / file.name)
            for file in SDH_IMPORT_DIRECTORY.iterdir():
                if file.name[-4:] == '.dat':
                    os.remove(file)
    for file in NEW_FILES_DIRECTORY.iterdir():
        if file.name[-4:] == '.csv':
            file_count.append(f'new file: {file.name}')
            shutil.move(file, PROBLEMS_DIRECTORY / file.name)
    if file_count:
        file_alert(file_count)

def file_alert(file_list):
    file_string = ', '.join(file_list)
    msg = MIMEMultipart()
    msg['Subject'] = 'Source ecommerce: Files Left Over'
    msg['Precedence'] = 'bulk'
    msg['From'] = 'x3report@stashtea.com'
    msg['To'] = 'bleeson@stashtea.com'
    #msg['CC'] = 'bleeson@stashtea.com'
    emailtext = f'files: {file_string}'
    msg.attach(MIMEText(emailtext, 'plain'))
    with smtplib.SMTP_SSL("smtp.gmail.com", 465) as smtp:
        smtp.login(user='x3reportmk2@yamamotoyama.com', password=r'n</W<7fr"VD~\2&[pZc5')
        smtp.send_message(msg)    


if __name__ == "__main__":
    main()