version: '3.8'

services:
  # Zookeeper for Kafka
  zookeeper:
    image: confluentinc/cp-zookeeper:7.4.0
    hostname: zookeeper
    container_name: zookeeper
    ports:
      - "2181:2181"
    environment:
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_TICK_TIME: 2000

  # Kafka broker
  kafka:
    image: confluentinc/cp-kafka:7.4.0
    hostname: kafka
    container_name: kafka
    depends_on:
      - zookeeper
    ports:
      - "9092:9092"
      - "9101:9101"
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: 'zookeeper:2181'
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka:29092,PLAINTEXT_HOST://localhost:9092
      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
      KAFKA_TRANSACTION_STATE_LOG_MIN_ISR: 1
      KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR: 1
      KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: 0
      KAFKA_JMX_PORT: 9101
      KAFKA_JMX_HOSTNAME: localhost
      KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'true'

  # PostgreSQL database
  postgres:
    image: postgres:15
    container_name: postgres
    hostname: postgres
    ports:
      - "5432:5432"
    environment:
      POSTGRES_DB: postgres
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: localpass123
    volumes:
      - postgres_data:/var/lib/postgresql/data
      - ./init.sql:/docker-entrypoint-initdb.d/init.sql
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres"]
      interval: 10s
      timeout: 5s
      retries: 5

  # Spring Boot Consumer
  spring-boot-consumer:
    build:
      context: ./KafkaConsumer
      dockerfile: Dockerfile
    container_name: spring-boot-consumer
    depends_on:
      postgres:
        condition: service_healthy
      kafka:
        condition: service_started
    environment:
      - KAFKA_BOOTSTRAP_SERVERS=kafka:29092
      - DB_HOST=postgres
      - DB_PORT=5432
      - DB_NAME=microfinance_db
      - DB_USERNAME=postgres
      - DB_PASSWORD=localpass123
    restart: unless-stopped

  # .NET Consumer
  dotnet-consumer:
    build:
      context: ./KafkaConsumer.Net/KafkaConsumer
      dockerfile: Dockerfile
    container_name: dotnet-consumer
    depends_on:
      postgres:
        condition: service_healthy
      kafka:
        condition: service_started
    environment:
      - KAFKA_BOOTSTRAP_SERVERS=kafka:29092
      - DB_CONNECTION_STRING=Host=postgres;Port=5432;Username=postgres;Password=localpass123;Database=microfinance_db
    restart: unless-stopped

  # Message Producer
  message-producer:
    build:
      context: ./scripts/producer
      dockerfile: Dockerfile
    container_name: message-producer
    depends_on:
      kafka:
        condition: service_started
    environment:
      - KAFKA_BOOTSTRAP_SERVERS=kafka:29092
      - TOPIC_NAME=disburse-commands
      - MESSAGES_PER_SECOND=1000
    restart: unless-stopped

volumes:
  postgres_data: