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75 lines
3.1 KiB
Python
75 lines
3.1 KiB
Python
from datetime import datetime, timedelta
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from nest_backend.database import *
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from .authentication import authenticate
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import smtplib
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def is_repo_alert_triggered(repository_id):
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repo = Repository.query.filter_by(id=repository_id).first()
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if repo is None:
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print("Non esiste una repository con questo id")
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return False
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alerts = [alert for alert in repo.alerts]
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alerts_triggered = []
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for alert in alerts:
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evaluation_mode = alert.evaluation_mode
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conditions = [condition.condition for condition in alert.conditions]
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repo_tweets = [tweet.tweet for tweet in repo.tweets]
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alert_tweets = set(repo_tweets)
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if evaluation_mode == ConditionMode.all_and:
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for condition in conditions:
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alert_tweets.intersection(set([tweet.tweet for tweet in condition.tweets]))
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elif evaluation_mode == ConditionMode.all_or:
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conditions_tweet = set()
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for condition in conditions:
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conditions_tweet.update([tweet.tweet for tweet in condition.tweets])
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alert_tweets = alert_tweets.intersection(conditions_tweet)
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end_time = datetime.now()
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window_size_hours = timedelta(hours = alert.window_size)
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last_notification_time = min([notification.ora for notification in alert.notifications] if len(alert.notifications)>0 else [end_time - window_size_hours])
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start_time = max(end_time - window_size_hours, last_notification_time)
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alert_tweets = [tweet for tweet in alert_tweets if (end_time > tweet.insert_time > start_time)]
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print(f"I tweet corrispondenti sono:{len(alert_tweets)}")
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if len(alert_tweets) >= alert.limit:
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alert_notification = Notification(ora=str(datetime.now()), alert_id=alert.id)
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ext.session.add(alert_notification)
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ext.session.commit()
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print("alert triggered")
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alerts_triggered.append(alert)
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send_notification_email(alert)
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send_notification_tweet(alert)
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def send_notification_email(alert):
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owner_repo = alert.repository.owner
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conditions_string = ''
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for condition in alert.conditions:
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conditions_string += condition.condition.content + ','
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conditions_string = conditions_string[:-1]
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smtpObj = None
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try:
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smtpObj = smtplib.SMTP('localhost')
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smtpObj.sendmail("alert@nest.com", owner_repo.email, "Alert triggered")
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print("Successfully sent email")
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except smtplib.SMTPException:
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print("Error: unable to send email")
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finally:
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if smtpObj is not None:
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smtpObj.close()
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def send_notification_tweet(alert):
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api = authenticate()
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conditions_string = ''
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for condition in alert.conditions:
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conditions_string += condition.condition.content + ','
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conditions_string = conditions_string[:-1]
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print(conditions_string)
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api.update_status(f"L'alert {alert.name} è stato attivato! C'è stato un incremento di popolarità negli argomenti di ricerca {conditions_string}")
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__all__ = (
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"is_repo_alert_triggered",
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"send_notification_email",
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"send_notification_tweet",
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)
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