send_reminders.py

from retrieval import fetch_deadlines
from dotenv import load_dotenv
import os
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from datetime import datetime, timedelta



load_dotenv()
deadlines = fetch_deadlines()

# Gmail credentials
EMAIL = os.getenv("SENDER_EMAIL")
PASSWORD = os.getenv("APP_PASSWORD")   # Google App Password
TO_EMAIL = os.getenv("RECEIVER_EMAIL")


REMINDER_HOURS = [7, 12, 18, 20, 22] # i wanna send reminders at these particular hours(24 hr format)



def send_email(subject, body, to_email=TO_EMAIL):
    msg = MIMEMultipart()
    msg["From"] = EMAIL
    msg["To"] = to_email
    msg["Subject"] = subject
    msg.attach(MIMEText(body, "plain"))

    try:
        with smtplib.SMTP("smtp.gmail.com", 587) as server:
            server.starttls()
            server.login(EMAIL, PASSWORD)
            server.sendmail(EMAIL, to_email, msg.as_string())
        print(f"Email sent: {subject}")
    except Exception as e:
        print(f"Error sending email: {e}")



def schedule_reminders(deadlines):
    now = datetime.now()
    today = now.date()
    tomorrow = today + timedelta(days=1) 

    """
    The script runs daily at 7 AM and checks whether if there are deadlines tom and if yes 
    then it starts sending reminders at specified time
    """

    for task in deadlines:
        due_date = datetime.strptime(task["Due_date"], "%A, %B %d, %Y %I:%M %p").date()

        if due_date == tomorrow:
            subject = f"Reminder: {task['Name']} due tomorrow!"
            body = (
                f"You have a task due tom but dont be lazy and procrastinate till the deadline , finish it RIGHT NOW!!!\n\n"
                f"Task: {task['Name']}\n"
                f"Deadline: {task['Due_date']}\n\n"
            )
            send_email(subject, body)



if __name__ == "__main__":
    schedule_reminders(deadlines)
    print("Code ran successfully~")