added notifyer

migrations/versions/30ce6cd40d05_adda_col_notifyed_bool.py

@@ -0,0 +1,32 @@
+"""AddA_col_Notifyed_Bool
+
+Revision ID: 30ce6cd40d05
+Revises: 04e41f293ec2
+Create Date: 2024-01-09 10:46:50.964332
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '30ce6cd40d05'
+down_revision = '04e41f293ec2'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('user_event', schema=None) as batch_op:
+        batch_op.drop_column('notified')
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('user_event', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('notified', sa.BOOLEAN(), nullable=True))
+
+    # ### end Alembic commands ###

models.py

@@ -10,7 +10,6 @@ class UserEventAssociation(db.Model):
     __tablename__ = 'user_event'
     user_id = Column(String(36), ForeignKey('user.id'), primary_key=True)
     event_id = Column(Integer, ForeignKey('event.id'), primary_key=True)
-    notified = Column(Boolean, default=False)
 
 class Event(db.Model):
     id = Column(db.Integer, primary_key=True)

services/EventNotifyerService.py

@@ -1,10 +1,37 @@
 # this Class is for the scheduler
 #this class will have a function that locates the upcomming events Using the Event service.
 from services.EventService import EventService
+from services.UserService import UserService
+from models import UserEventAssociation, db
 
 class EventNotifyerService:
   def __init__(self):
     pass
-
+  
   def notifyUpcommingEvents():
-    return EventService.get_all_upcomming_events()
+    # this method will get the upcoming events from the event service
+    # foreach event, locate the users with the same location as the event but not the users that already been notifyed about the event
+    # foreach user, append to UserEventAssociation table that the user is been notified about the event
+    events = EventService.get_upcoming_events()
+    for event in events:
+      # locate users with the same location as the event but not the users that already been notifyed about the event (users with UserEventAssociation)
+      users = UserService.get_users_with_same_location_but_not_been_notifyed(event['location'])
+      if not users:
+        print("No user to notify")
+        continue
+      for user in users:
+        print("Found user to notify:", user)
+        if notify_user(user['email'], event):
+          user_event_association = UserEventAssociation(
+              user_id=user['id'],
+              event_id=event['id']
+          )
+          db.session.add(user_event_association)
+          db.session.commit()
+
+  
+def notify_user(userEmail, event):
+  # send email to user is the email been sent, return true; otherwise, return false
+  return True
+
+    

services/UserService.py

@@ -1,5 +1,6 @@
 from flask_bcrypt import Bcrypt
-from models import db, User
+from models import db, User, UserEventAssociation
+
 
 bcrypt = Bcrypt()
 
@@ -35,3 +36,11 @@ class UserService:
         if user and bcrypt.check_password_hash(user.password_hash, data['password']):
             return user
         return None
+    
+    @staticmethod
+    def get_users_with_same_location_but_not_been_notifyed(location):
+        users = User.query.filter_by(location=location).all()
+        users = [user for user in users if not UserEventAssociation.query.filter_by(user_id=user.id).first()]
+        return [user.to_dict() for user in users]
+
+