# Test harness: pull the published BACKEND image and run it (+ a throwaway TimescaleDB)
# so the frontend's integration tests exercise the real HTTP contract instead of
# importing backend source. Used by scripts/backend-for-tests.sh; not a deploy file.
# The frontend itself is NOT a service here — the tests run the SSR app in-process
# (TestClient) with api_client pointed at this backend. DB data is tmpfs (ephemeral).
services:
  db:
    image: timescale/timescaledb:${TIMESCALEDB_TAG:-latest-pg18}
    environment:
      POSTGRES_USER: thermograph
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-testing}
      POSTGRES_DB: thermograph
    tmpfs:
      # pg18 places PGDATA in a version subdir under the mount — mount at /var/lib/postgresql.
      - /var/lib/postgresql
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U thermograph -d thermograph"]
      interval: 3s
      timeout: 5s
      retries: 20

  backend:
    # The published backend image is pulled (no local build).
    #
    # No default tag on purpose: scripts/backend-for-tests.sh computes one from
    # THIS checkout -- sha-<12hex of `git log -1 -- backend/`>, the same
    # domain-keyed rule build-push.yml and deploy.yml both use -- so the harness
    # tracks the tree instead of drifting behind a hardcoded pin. (It was pinned
    # to the split-era v0.0.2-split-ci, under the retired
    # emi/thermograph-backend/app path, long after both were superseded.)
    # Override THERMOGRAPH_BACKEND_TEST_TAG to pin a specific build.
    image: ${REGISTRY_HOST:-git.thermograph.org}/${BACKEND_IMAGE_PATH:-emi/thermograph/backend}:${THERMOGRAPH_BACKEND_TEST_TAG:?set it, or run via scripts/backend-for-tests.sh which derives it}
    depends_on:
      db:
        condition: service_healthy
    environment:
      THERMOGRAPH_DATABASE_URL: postgresql+asyncpg://thermograph:${POSTGRES_PASSWORD:-testing}@db:5432/thermograph
      # Required at import; the frontend tests never drive the backend's reverse proxy,
      # so an unreachable placeholder is fine.
      THERMOGRAPH_FRONTEND_BASE_INTERNAL: http://127.0.0.1:1
      THERMOGRAPH_BASE: "/"
      THERMOGRAPH_ENABLE_NOTIFIER: "0"
      PORT: "8137"
      WORKERS: "1"
    ports:
      # Host port defaults to 18137 to avoid a dev server on 8137.
      - "127.0.0.1:${BACKEND_TEST_HOST_PORT:-18137}:8137"
