version: "3.8"

services:

  # ── Zookeeper (required for Kafka) ────────────────────────────────────────
  zookeeper:
    image: confluentinc/cp-zookeeper:7.5.0
    container_name: fraud_zookeeper
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000
    ports:
      - "2181:2181"

  # ── Kafka Broker ──────────────────────────────────────────────────────────
  kafka:
    image: confluentinc/cp-kafka:7.5.0
    container_name: fraud_kafka
    depends_on:
      - zookeeper
    ports:
      - "9092:9092"
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:9092
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true"

  # ── FastAPI Scoring API ───────────────────────────────────────────────────
  api:
    build:
      context: .
      dockerfile: Dockerfile.api
    container_name: fraud_api
    ports:
      - "8000:8000"
    volumes:
      - ./model:/app/model   # mount trained model artifacts
    environment:
      MODEL_DIR: /app/model
    depends_on:
      - kafka
    restart: unless-stopped

  # ── React Frontend ────────────────────────────────────────────────────────
  frontend:
    build:
      context: .
      dockerfile: Dockerfile.frontend
      args:
        REACT_APP_API_URL: http://localhost:8000
    container_name: fraud_frontend
    ports:
      - "3000:3000"
    depends_on:
      - api
    restart: unless-stopped

networks:
  default:
    name: fraud_network