# Local RabbitMQ stack for integration testing and screen-video recording.
#
# Brings up:
#   - a single-node broker with the management plugin enabled (port 15672)
#   - a small publisher that posts to `orders.process` at a steady rate
#   - a deliberately-slow consumer so a backlog builds up within seconds
#
# Run:
#   make rabbitmq-local-up
#   # wait ~30s for the backlog to grow, then exercise the tools:
#   make test-rabbitmq-real
#
# Tear down:
#   make rabbitmq-local-down

services:
  rabbitmq:
    image: rabbitmq:3.13-management
    container_name: opensre-rabbitmq
    ports:
      - "5672:5672"      # AMQP
      - "15672:15672"    # Management HTTP API
    environment:
      RABBITMQ_DEFAULT_USER: sre_admin
      RABBITMQ_DEFAULT_PASS: sre_password
      RABBITMQ_DEFAULT_VHOST: /orders
    healthcheck:
      test: ["CMD", "rabbitmq-diagnostics", "-q", "ping"]
      interval: 5s
      timeout: 5s
      retries: 12

  publisher:
    image: python:3.13-slim
    container_name: opensre-rabbitmq-publisher
    depends_on:
      rabbitmq:
        condition: service_healthy
    environment:
      RABBITMQ_URL: amqp://sre_admin:sre_password@rabbitmq:5672/%2forders
    command: >
      sh -c "pip install --quiet pika==1.3.2 &&
             python -c \"
      import pika, time, os
      params = pika.URLParameters(os.environ['RABBITMQ_URL'])
      conn = pika.BlockingConnection(params)
      ch = conn.channel()
      ch.queue_declare(queue='orders.process', durable=True)
      i = 0
      while True:
          ch.basic_publish(exchange='', routing_key='orders.process', body=f'msg-{i}'.encode())
          i += 1
          time.sleep(0.02)   # ~50 msg/s publish rate
      \""

  slow_consumer:
    image: python:3.13-slim
    container_name: opensre-rabbitmq-slow-consumer
    depends_on:
      rabbitmq:
        condition: service_healthy
    environment:
      RABBITMQ_URL: amqp://sre_admin:sre_password@rabbitmq:5672/%2forders
    command: >
      sh -c "pip install --quiet pika==1.3.2 &&
             python -c \"
      import pika, time, os
      params = pika.URLParameters(os.environ['RABBITMQ_URL'])
      conn = pika.BlockingConnection(params)
      ch = conn.channel()
      ch.queue_declare(queue='orders.process', durable=True)
      ch.basic_qos(prefetch_count=1)
      def on_msg(ch_, method, _props, _body):
          time.sleep(0.2)   # 5 msg/s consume rate -> guaranteed backlog
          ch_.basic_ack(method.delivery_tag)
      ch.basic_consume(queue='orders.process', on_message_callback=on_msg)
      ch.start_consuming()
      \""