# mk-labs Honcho deriver worker (background queue consumer)
# Managed by Ansible - honcho role
#
# Same image as the API; different command. The deriver pulls jobs off
# the DB-backed queue and calls the LLM provider to perform theory-of-mind
# derivations against user sessions.

[Unit]
Description=Honcho deriver worker
After=network-online.target {{ honcho_postgres_container_name }}.service {{ honcho_container_name }}.service
Wants=network-online.target
Requires={{ honcho_postgres_container_name }}.service

[Container]
Image={{ honcho_image }}
ContainerName={{ honcho_deriver_container_name }}
Network={{ honcho_network_name }}

# Run the deriver via the package's __main__ (not the helpers module).
# src/deriver/deriver.py has no __main__ guard — loading it exits 0 in
# ~3s and systemd treats that as a crash loop. The actual entry point
# lives in src/deriver/__main__.py and is invoked via "python -m src.deriver".
WorkingDir=/app
Exec=/app/.venv/bin/python -m src.deriver

# -- Database ---------------------------------------------------------------
Environment=DB_CONNECTION_URI=postgresql+psycopg://{{ honcho_db_user }}:{{ honcho_db_password }}@{{ honcho_postgres_container_name }}:5432/{{ honcho_db_name }}

# -- Auth -------------------------------------------------------------------
# Deriver does not serve HTTP, but it reads the same config object — keep
# secrets aligned with the API container.
Environment=AUTH_USE_AUTH=*** honcho_auth_enabled | string | lower }}
Environment=AUTH_JWT_SECRET=*** honcho_jwt_secret }}

# -- LLM provider keys ------------------------------------------------------
{% if honcho_llm_transport == 'anthropic' %}
Environment=LLM_ANTHROPIC_API_KEY=*** honcho_anthropic_api_key }}
{% endif %}

# -- Deriver runtime --------------------------------------------------------
Environment=DERIVER_ENABLED={{ honcho_deriver_enabled | string | lower }}
Environment=DERIVER_WORKERS={{ honcho_deriver_workers }}
Environment=DERIVER_POLLING_SLEEP_INTERVAL_SECONDS={{ honcho_deriver_polling_seconds }}
Environment=DERIVER_FLUSH_ENABLED={{ honcho_deriver_flush_enabled | string | lower }}
Environment=DERIVER_MODEL_CONFIG__TRANSPORT={{ honcho_llm_transport }}
Environment=DERIVER_MODEL_CONFIG__MODEL={{ honcho_deriver_model }}

# -- Summary subsystem (the deriver triggers summaries periodically) --------
Environment=SUMMARY_MODEL_CONFIG__TRANSPORT={{ honcho_llm_transport }}
Environment=SUMMARY_MODEL_CONFIG__MODEL={{ honcho_summary_model }}

# -- Embeddings (off by default — see defaults/main.yml for rationale) ------
Environment=EMBED_MESSAGES={{ honcho_embed_messages | string | lower }}

# -- Vector store -----------------------------------------------------------
Environment=VECTOR_STORE_TYPE=pgvector

# Timezone matches host baseline
Environment=TZ=America/Chicago
Environment=LOG_LEVEL=INFO

[Service]
Restart=always
TimeoutStartSec=180

[Install]
WantedBy=multi-user.target default.target