# Production compose for CA Lab Studio.
# Usage: docker compose -f docker-compose.prod.yml --env-file .env.prod up -d --build
#
# This stack is independent of gnommoweb. It joins the shared `gnommo`
# external network to reach gnommo-db (Postgres) and to be reachable by the
# shared nginx (gu_common) which proxies lab.${DOMAIN} → gnommo-lab:3100.
#
# Required env vars (load via .env.prod on the server):
#   POSTGRES_USER, POSTGRES_PASSWORD — credentials for gnommo-db (shared)
#   LAB_DB (optional)               — database name within gnommo-db (default: ca_studio)

services:

  # Idempotently ensures the ca_studio database + pgcrypto extension exist on
  # the shared gnommo-db Postgres before the lab service starts.
  lab-db-init:
    image: postgres:16-alpine
    restart: "no"
    environment:
      PGUSER: ${POSTGRES_USER}
      PGPASSWORD: ${POSTGRES_PASSWORD}
      PGHOST: gnommo-db
      PGPORT: "5432"
      LAB_DB: ${LAB_DB:-ca_studio}
    entrypoint: >
      /bin/sh -c "
      until pg_isready -h gnommo-db -U $${PGUSER}; do echo 'Waiting for gnommo-db...'; sleep 2; done;
      psql -d postgres -tAc \"SELECT 1 FROM pg_database WHERE datname='$${LAB_DB}'\" | grep -q 1 ||
        psql -d postgres -c \"CREATE DATABASE $${LAB_DB};\";
      psql -d $${LAB_DB} -c 'CREATE EXTENSION IF NOT EXISTS pgcrypto;';
      echo 'Lab DB: ready.'
      "
    networks:
      - gnommo

  lab:
    build:
      context: .
      dockerfile: Dockerfile
    container_name: gnommo-lab
    restart: unless-stopped
    environment:
      NODE_ENV: production
      PORT: "3100"
      DATABASE_URL: postgres://${POSTGRES_USER}:${POSTGRES_PASSWORD}@gnommo-db:5432/${LAB_DB:-ca_studio}
    # Run pending migrations before starting the server.
    # The lab's migrate script is idempotent (CREATE TABLE IF NOT EXISTS).
    command: sh -c "node scripts/migrate.mjs && node dist/server.js"
    expose:
      - "3100"
    depends_on:
      lab-db-init:
        condition: service_completed_successfully
    networks:
      - default
      - gnommo

networks:
  default: {}
  gnommo:
    external: true