# Nodeledge MQTT listener stack (Portainer / docker compose compatible).
#
# Services:
#   db            PostgreSQL holding the mqtt_messages table
#   mqtt-listener subscribes to MQTT, injects IMEI + device into JSON payloads, writes rows
#   api           FastAPI read API over the database, protected by static app tokens
#   broker        OPTIONAL test broker (compose profile "test") for trying the stack out
#
# Portainer: Stacks -> Add stack -> paste this file, then set the environment
#   variables (see .env.example) in the stack's "Environment variables" section.
# Locally:   cp .env.example .env && docker compose --profile test up -d --build

services:
  db:
    image: postgres:16-alpine
    restart: unless-stopped
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-nodeledge}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?set POSTGRES_PASSWORD in the stack environment}
      POSTGRES_DB: ${POSTGRES_DB:-nodeledge}
    volumes:
      - db_data:/var/lib/postgresql/data
      # Creates the mqtt_messages table on the first database start only.
      - ./init/01_schema.sql:/docker-entrypoint-initdb.d/01_schema.sql:ro
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER} -d $${POSTGRES_DB}"]
      interval: 10s
      timeout: 5s
      retries: 10
      start_period: 10s

  mqtt-listener:
    build:
      context: .
      dockerfile: listener/Dockerfile
    init: true
    restart: unless-stopped
    depends_on:
      db:
        condition: service_healthy
    environment:
      MQTT_BROKER_HOST: ${MQTT_BROKER_HOST:-broker}
      MQTT_BROKER_PORT: ${MQTT_BROKER_PORT:-1883}
      MQTT_USERNAME: ${MQTT_USERNAME:-}
      MQTT_PASSWORD: ${MQTT_PASSWORD:-}
      MQTT_CLIENT_ID: ${MQTT_CLIENT_ID:-nodeledge-mqtt-listener}
      # Matches topics on the form /<prefix>/<imei> (see README to widen it).
      MQTT_TOPIC_FILTER: ${MQTT_TOPIC_FILTER:-/+/+}
      MQTT_QOS: ${MQTT_QOS:-1}
      DB_DSN: postgresql://${POSTGRES_USER:-nodeledge}:${POSTGRES_PASSWORD:?set POSTGRES_PASSWORD in the stack environment}@db:5432/${POSTGRES_DB:-nodeledge}
      IMEI_MAP_FILE: /app/config/imei_map.json
      INJECT_IMEI_KEY: ${INJECT_IMEI_KEY:-imei}
      INJECT_DEVICE_KEY: ${INJECT_DEVICE_KEY:-device}
      # Comma-separated payload keys searched for a device timestamp.
      PAYLOAD_TIME_KEYS: ${PAYLOAD_TIME_KEYS:-timestamp,time,ts}
      LOG_LEVEL: ${LOG_LEVEL:-INFO}
    volumes:
      # IMEI -> device name mapping, see configs/listener/imei_map.json
      - ./configs/listener:/app/config:ro
    healthcheck:
      test: ["CMD", "python", "/app/listener/healthcheck.py"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 30s

  api:
    build:
      context: .
      dockerfile: api/Dockerfile
    init: true
    restart: unless-stopped
    depends_on:
      db:
        condition: service_healthy
    environment:
      DB_DSN: postgresql://${POSTGRES_USER:-nodeledge}:${POSTGRES_PASSWORD:?set POSTGRES_PASSWORD in the stack environment}@db:5432/${POSTGRES_DB:-nodeledge}
      APP_TOKENS_FILE: /app/config/app_tokens.json
      # Read/write location for the listener's IMEI map, shared via the
      # ./configs/listener mount (the listener reads the same file)
      IMEI_MAP_FILE: /app/config-listener/imei_map.json
      API_MAX_LIMIT: ${API_MAX_LIMIT:-10000}
      LOG_LEVEL: ${LOG_LEVEL:-INFO}
    volumes:
      # app tokens for API auth + the listener's IMEI map; mounted rw so the
      # /configs endpoints can update them (writes are atomic)
      - ./configs/api:/app/config:rw
      - ./configs/listener:/app/config-listener:rw
    ports:
      - "${API_HOST_PORT:-18080}:8000"
    healthcheck:
      test: ["CMD", "python", "/app/api/healthcheck.py"]
      interval: 30s
      timeout: 10s
      retries: 3
      start_period: 30s

  broker:
    # Optional MQTT broker for local testing; excluded unless the "test"
    # profile is active (docker compose --profile test ...). Point
    # MQTT_BROKER_HOST at your real broker in production.
    image: eclipse-mosquitto:2
    profiles: ["test"]
    restart: unless-stopped
    ports:
      - "${MQTT_HOST_PORT:-1883}:1883"
    volumes:
      - ./mosquitto/mosquitto.conf:/mosquitto/config/mosquitto.conf:ro
    healthcheck:
      test: ["CMD", "mosquitto_pub", "-h", "127.0.0.1", "-t", "broker/healthcheck", "-m", "ping"]
      interval: 30s
      timeout: 5s
      retries: 3

volumes:
  db_data: