#!/usr/bin/env python
# -*- coding: utf-8 -*-

from datetime import datetime, timezone, timedelta
import time
import threading
import os
import sys
import os.path
import psycopg2
try:
    from prettytable import PrettyTable
except ModuleNotFoundError as mod_not_found:
    print(f"{mod_not_found}. Run 'pip install -r requirements.txt' and try again")

def get_user(email):

    found_it = False

    try:

        conn = psycopg2.connect(database = mailing_db, user = mailing_db_user, password = "", host = "/var/run/postgresql", port = "5432")

        cur = conn.cursor()

        cur.execute("SELECT account_id, username, email, emailed_at, deleted, elapsed_days, to_be_deleted, recipient_error, feedback  FROM " + mailing_db_table + " where email=(%s)", (email,))

        row = cur.fetchone()

        if row != None:

            found_it = True

            user_id = row[0]
            user_name = row[1]
            user_email = row[2]
            emailed_at = row[3].replace(tzinfo=None)
            deleted = row[4]
            elapsed_days = row[5]
            to_be_deleted = row[6]
            recipient_error = row[7]
            user_feedback = row[8]

        else:

            user_id = ''
            user_name = ''
            user_email = ''
            emailed_at = ''
            deleted = False
            elapsed_days = '0'
            to_be_deleted = False
            recipient_error = False
            user_feedback = False

        cur.close()

        return (found_it, user_id, user_name, user_email, emailed_at, deleted, elapsed_days, to_be_deleted, recipient_error, user_feedback)

    except (Exception, psycopg2.DatabaseError) as error:

        print(error)

    finally:

        if conn is not None:

            conn.close()

def update_user(will_be_deleted, recip_error, user_feedback, id):

    conn = None

    try:

        conn = psycopg2.connect(database = mailing_db, user = mailing_db_user, password = "", host = "/var/run/postgresql", port = "5432")

        cur = conn.cursor()

        cur.execute("UPDATE " + mailing_db_table + " SET to_be_deleted=(%s), recipient_error=(%s), feedback=(%s) where account_id=(%s)", (will_be_deleted, recip_error, user_feedback, id))

        print(f"\nUpdating user {str(id)}")

        conn.commit()

        cur.close()

    except (Exception, psycopg2.DatabaseError) as error:

        print(error)

    finally:

        if conn is not None:

            conn.close()

def get_parameter( parameter, file_path ):

    # Check if secrets file exists
    if not os.path.isfile(file_path):
        if file_path == "secrets/secrets.txt":
            print(f"File {file_path} not found, exiting. Run setup.py.")
        elif file_path == "config.txt":
            print(f"File {file_path} not found, exiting. Run db-setup.py.")
        sys.exit(0)

    # Find parameter in file
    with open( file_path ) as f:
        for line in f:
            if line.startswith( parameter ):
                return line.replace(parameter + ":", "").strip()

    # Cannot find parameter, exit
    print(f"{file_path} Missing parameter {parameter}\nRun setup.py")
    sys.exit(0)

def db_config():

    # Load configuration from config file
    config_filepath = "config.txt"
    mastodon_db = get_parameter("mastodon_db", config_filepath)
    mastodon_db_user = get_parameter("mastodon_db_user", config_filepath)
    mailing_db = get_parameter("mailing_db", config_filepath)
    mailing_db_user = get_parameter("mailing_db_user", config_filepath)
    mailing_db_table = get_parameter("mailing_db_table", config_filepath)

    return (mastodon_db, mastodon_db_user, mailing_db, mailing_db_user, mailing_db_table)

# main

if __name__ == '__main__':

    mastodon_db, mastodon_db_user, mailing_db, mailing_db_user, mailing_db_table = db_config()

    while True:

        useremail = input("Enter user email address: (press q to quit) ")

        if useremail == 'q':

            sys.exit('Bye.')

        else:

            found_it, user_id, user_name, user_email, emailed_at, deleted, elapsed_days, to_be_deleted, recipient_error, user_feedback = get_user(useremail)

            if found_it:

                print_table = PrettyTable()

                print_table.field_names = ['id', 'username', 'email', 'emailed_at', 'deleted', 'elapsed_days', 'to_be_deleted', 'recipient_error', 'user_feedback']

                print_table.add_row([user_id, user_name, user_email, emailed_at, deleted, elapsed_days, to_be_deleted, recipient_error, user_feedback])

                print(f'\n{print_table}\n')

                willdeleteit = input("Do you want to mark user to be deleted? (press t for True or f for False) ")
                if willdeleteit == 'f':
                    willdeleteit = 'False'
                elif willdeleteit == 't':
                    willdeleteit = 'True'

                recip_error = input("Was the email refused? (press t for True or f for False) ")
                if recip_error == 'f':
                    recip_error = 'False'
                elif recip_error == 't':
                    recip_error = 'True'

                user_feed = input("Have the user replied? (press t for True or f for False) ")
                if user_feed == 'f':
                    user_feed = 'False'
                elif user_feed == 't':
                    user_feed = 'True'

                update_user(willdeleteit, recip_error, user_feed, user_id)

                found_it, user_id, user_name, user_email, emailed_at, deleted, elapsed_days, to_be_deleted, recipient_error, user_feedback = get_user(useremail)

                print_table = PrettyTable()

                print_table.field_names = ['id', 'username', 'email', 'emailed_at', 'deleted', 'elapsed_days', 'to_be_deleted', 'recipient_error', 'user_feedback']

                print_table.add_row([user_id, user_name, user_email, emailed_at, deleted, elapsed_days, to_be_deleted, recipient_error, user_feedback])

                print(f'\n{print_table}\n')

            else:

                print(f'email {useremail} not found!')