import sys, os, json

sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

from kafka import KafkaConsumer, KafkaProducer
from shared.events import BOOTSTRAP_SERVERS, TOPIC_PAYMENTS, TOPIC_NOTIFICATIONS, make_event

def run():
    consumer = KafkaConsumer(
        TOPIC_PAYMENTS,
        bootstrap_servers=BOOTSTRAP_SERVERS,
        group_id="kitchen_service",
        auto_offset_reset="latest",
        value_deserializer=lambda v: json.loads(v.decode("utf-8"))
    )

    producer = KafkaProducer(
        bootstrap_servers=BOOTSTRAP_SERVERS,
        key_serializer=str.encode,
        value_serializer=lambda v: json.dumps(v).encode(),
        acks="all"
    )

    print("[KITCHEN SERVICE] Service de cuisine démarré, en attente d'évènements...")

    for message in consumer:
        event = message.value

        if event["type"] != "payment.confirmed":
            continue

        payload = event["payload"]
        order_id = payload["order_id"]
        restaurant_id = payload["restaurant_id"]

        print(f"[KITCHEN SERVICE] Paiement confirmé - démarrage de la préparation de la commande {order_id}")

        result = make_event("order.preparation_started", {
            "order_id": order_id,
            "customer_id": payload["customer_id"],
            "restaurant_id": restaurant_id
        })

        producer.send(
            topic=TOPIC_NOTIFICATIONS,
            key=str(restaurant_id),
            value=result
        )
        producer.flush()

        print(f"[KITCHEN SERVICE] Préparation de la commande {order_id} commencée")

if __name__ == "__main__":
    run()