Cucumber/GreenhouseManager/manager.py

from kafka import KafkaProducer, KafkaConsumer
import kafka
import socket
from json import dumps, loads
import time
from enum import Enum

class Status(Enum):
    UNKNOWN = -1
    OFF = 0
    ON = 1

class Manager:
    def __init__(self, id : int, moisture : float = 0, temp : float = 20, valveStatus : Status = Status.UNKNOWN, heaterStatus : Status = Status.UNKNOWN, isAutoOn : bool = False):
        self.id = id
        self.moisture = moisture
        self.temp = temp
        self.valveStatus = valveStatus
        self.heaterStatus = heaterStatus
        self.isAutoOn = isAutoOn

        self.dataPublisher = KafkaProducer(
            bootstrap_servers=['localhost:9092'],
            client_id=f'manager{id}_producer',
            value_serializer=lambda v: dumps(v).encode('utf-8')
        )

        self.detectorConsumer = KafkaConsumer(
            'dataDetectors',
            bootstrap_servers=['localhost:9092'],
            auto_offset_reset='earliest',
            enable_auto_commit=True,
            consumer_timeout_ms = 1000,
            group_id=f'manager{id}',
            value_deserializer=lambda x: loads(x.decode('utf-8'))
        )

    def update(self):
        for message in self.detectorConsumer:
            if message.value['id'] == self.id:
                print(f"Manager {self.id} received message: ")
                print(message.value)
                self.moisture = message.value['moisture']
                self.temp = message.value['temperature']
        print("Updating info...\n")

        self.sendData()

    def sendData(self):
        print("sending data...")
        message = {
            'id': self.id,
            'moisture': self.moisture,
            'temp': self.temp,
            'valveStatus': str(self.valveStatus),
            'heaterStatus': str(self.heaterStatus),
            'isAutoOn': self.isAutoOn
        }

        print(message)
        self.dataPublisher.send('data', message)

manager1 = Manager(id = 1)

managers = [manager1]

while True:
    time.sleep(1)
    for manager in managers:
        manager.update()