# /opt/stacks/n8n/docker-compose.yml

services:

  postgres:
    image: postgres:15
    restart: unless-stopped
    environment:
      POSTGRES_USER: '${POSTGRES_USER}'
      POSTGRES_PASSWORD: '${POSTGRES_PASSWORD}'
      POSTGRES_DB: '${POSTGRES_DB}'
      TZ: Europe/Madrid
    volumes:
      - postgres_data:/var/lib/postgresql/data
    healthcheck:                                      # Crític: n8n espera que postgres estigui llest
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER} -d ${POSTGRES_DB}"]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 30s
    networks:
      - n8n-net

  n8n:
    image: n8nio/n8n:latest
    restart: unless-stopped
    ports:
      - "5678:5678"                        # Interfície web (només local → via Nginx)
    environment:
      TZ: Europe/Madrid
      GENERIC_TIMEZONE: Europe/Madrid                 # Necessari per a workflows cron
      # Base de dades
      DB_TYPE: postgresdb
      DB_POSTGRESDB_HOST: postgres
      DB_POSTGRESDB_PORT: 5432
      DB_POSTGRESDB_DATABASE: '${POSTGRES_DB}'
      DB_POSTGRESDB_USER: '${POSTGRES_USER}'
      DB_POSTGRESDB_PASSWORD: '${POSTGRES_PASSWORD}'
      # Seguretat
      N8N_ENCRYPTION_KEY: '${N8N_ENCRYPTION_KEY}'    # CRÍTIC: mai canviar un cop configurat
      # URL pública (necessari per a webhooks)
      N8N_HOST: '${N8N_HOST}'
      N8N_PORT: 5678
      N8N_PROTOCOL: https
      WEBHOOK_URL: 'https://${N8N_HOST}/'
    volumes:
      - n8n_data:/home/node/.n8n
    depends_on:
      postgres:
        condition: service_healthy                    # Espera que postgres estigui realment llest
    networks:
      - n8n-net
      - shared_net

volumes:
  postgres_data:
  n8n_data:

networks:
  n8n-net:
    driver: bridge
  shared_net:
    external: true
    name: shared_net