"""Canonical filesystem locations, resolved once from the repo root.

Every path the backend needs (the climate cache, the accounts DB, logs, the
bundled city data) is derived here from the repository root rather than from
each module's own ``__file__``. That keeps the locations stable no matter how
deep in the package tree a module lives, so moving a module never silently
re-points the cache or the accounts DB.

Callers that support an environment override (e.g. ``THERMOGRAPH_ACCOUNTS_DB``)
keep doing so; these are only the defaults.
"""
import os

REPO_DIR = os.path.dirname(os.path.abspath(__file__))
DATA_DIR = os.path.join(REPO_DIR, "data")
LOGS_DIR = os.path.join(REPO_DIR, "logs")

# Bundled reference data shipped alongside the code (generated by gen_cities /
# gen_flavor), not runtime state — hence at the repo root, not data/.
CITIES_JSON = os.path.join(REPO_DIR, "cities.json")
CITIES_FLAVOR_JSON = os.path.join(REPO_DIR, "cities_flavor.json")