version: '3.8'

services:
  # NATS message broker
  nats:
    image: nats:2.10-alpine
    ports:
      - "4222:4222"
      - "8222:8222"
    command: >
      nats-server
      --jetstream
      --store_dir=/data
      --http_port=8222
      --port=4222
    volumes:
      - nats_data:/data
    healthcheck:
      test: ["CMD", "nats-server", "--check"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 40s

  # BACKBEAT pulse service (leader election + beat generation)
  pulse-1:
    build:
      context: .
      dockerfile: Dockerfile
      target: pulse
    environment:
      - BACKBEAT_ENV=development
    command: >
      ./pulse
      -cluster=chorus-dev
      -node=pulse-1
      -admin-port=8080
      -raft-bind=0.0.0.0:9000
      -data-dir=/data
      -nats=nats://nats:4222
      -log-level=info
    ports:
      - "8080:8080"
      - "9000:9000"
    volumes:
      - pulse1_data:/data
    depends_on:
      nats:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8080/health"]
      interval: 30s
      timeout: 5s
      retries: 3
      start_period: 10s

  # Second pulse node for leader election testing
  pulse-2:
    build:
      context: .
      dockerfile: Dockerfile  
      target: pulse
    environment:
      - BACKBEAT_ENV=development
    command: >
      ./pulse
      -cluster=chorus-dev
      -node=pulse-2
      -admin-port=8080
      -raft-bind=0.0.0.0:9000
      -data-dir=/data
      -nats=nats://nats:4222
      -peers=pulse-1:9000
      -log-level=info
    ports:
      - "8081:8080"
      - "9001:9000"
    volumes:
      - pulse2_data:/data
    depends_on:
      nats:
        condition: service_healthy
      pulse-1:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8080/health"]
      interval: 30s
      timeout: 5s
      retries: 3
      start_period: 15s

  # BACKBEAT reverb service (status aggregation + bar reports)
  reverb:
    build:
      context: .
      dockerfile: Dockerfile
      target: reverb
    environment:
      - BACKBEAT_ENV=development
    command: >
      ./reverb
      -cluster=chorus-dev
      -node=reverb-1
      -nats=nats://nats:4222
      -bar-length=120
      -log-level=info
    ports:
      - "8082:8080"
    depends_on:
      nats:
        condition: service_healthy
      pulse-1:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8080/health"]
      interval: 30s
      timeout: 5s
      retries: 3
      start_period: 10s

  # Agent simulator for testing
  agent-sim:
    build:
      context: .
      dockerfile: Dockerfile
      target: agent-sim
    environment:
      - BACKBEAT_ENV=development
    command: >
      ./agent-sim
      -cluster=chorus-dev
      -nats=nats://nats:4222
      -agents=10
      -rate=2.0
      -log-level=info
    depends_on:
      nats:
        condition: service_healthy
      pulse-1:
        condition: service_healthy
      reverb:
        condition: service_healthy
    scale: 1

  # Prometheus for metrics collection
  prometheus:
    image: prom/prometheus:latest
    ports:
      - "9090:9090"
    volumes:
      - ./prometheus.yml:/etc/prometheus/prometheus.yml:ro
      - prometheus_data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--web.console.libraries=/etc/prometheus/console_libraries'
      - '--web.console.templates=/etc/prometheus/consoles'
      - '--storage.tsdb.retention.time=200h'
      - '--web.enable-lifecycle'
    depends_on:
      - pulse-1
      - reverb

  # Grafana for metrics visualization
  grafana:
    image: grafana/grafana:latest
    ports:
      - "3000:3000"
    environment:
      - GF_SECURITY_ADMIN_PASSWORD=admin
    volumes:
      - grafana_data:/var/lib/grafana
    depends_on:
      - prometheus

volumes:
  nats_data:
  pulse1_data:
  pulse2_data:
  prometheus_data:
  grafana_data: