# Environment variables read by the backend.
#
# NOTE: the app reads real environment variables — it does NOT auto-load this
# file. Set them in your shell, in docker-compose.yml, or in your host's
# dashboard. This file is documentation (and a template for deploy configs).

# Absolute path for the SQLite database file. Parent directory is created if
# missing. Default when unset: backend/data.db
# Docker compose sets this to /data/data.db (a named volume).
AIDND_DB_PATH=

# ---------------------------------------------------------------------------
# Phase 9 — production hardening
# ---------------------------------------------------------------------------

# Switch from SQLite to a server database (hosted deploys use Neon Postgres).
# Any SQLAlchemy URL; postgres:// and postgresql:// schemes are rewritten to
# the psycopg3 driver automatically. The platform-conventional DATABASE_URL
# is honored too (AIDND_DATABASE_URL wins if both are set). Unset = SQLite.
AIDND_DATABASE_URL=

# Comma-separated list of allowed CORS origins. Only needed when the frontend
# is served from a different origin than the API; the production build is
# served same-origin by FastAPI, so hosted deploys can leave this unset.
# Default: http://localhost:5173,http://127.0.0.1:5173 (the Vite dev server).
AIDND_CORS_ORIGINS=

# ---------------------------------------------------------------------------
# Phase 8 — optional accounts & multi-user (all optional; defaults keep the
# app in frictionless single-user "local mode")
# ---------------------------------------------------------------------------

# "1"/"true" turns on multi-user mode: guest sessions via signed cookies,
# register/login UI, per-user data. Leave unset for local installs.
AIDND_MULTI_USER=

# Secret for signing session cookies and encrypting stored API keys at rest.
# If unset in local mode, one is auto-generated into `secret.key` next to the
# database (fine for local/docker-volume runs). REQUIRED when
# AIDND_MULTI_USER is on — the app refuses to start without it, because a
# regenerated secret on an ephemeral hosted filesystem would log out every
# user on each deploy. Generate one:
#   python -c "import secrets; print(secrets.token_urlsafe(48))"
AIDND_SECRET_KEY=

# Session cookie Secure flag (HTTPS-only). Defaults to on when
# AIDND_MULTI_USER is on, off otherwise — set 0/1 only to override (e.g. 0
# when testing multi-user mode over plain http on a LAN address).
AIDND_COOKIE_SECURE=

# --- Shared demo key (BYOK fallback; only active when AIDND_MULTI_USER=1) ---
# Users with no API key of their own get this server-funded endpoint with a
# model whitelist and a per-day turn cap. Unset = no demo, users must bring
# their own key. Memory bank/auto-summarization are disabled on demo turns.
AIDND_DEMO_API_KEY=
# Default endpoint if unset: https://openrouter.ai/api/v1
AIDND_DEMO_ENDPOINT_URL=
# Comma-separated model whitelist. Default: google/gemma-4-26b-a4b-it:free
AIDND_DEMO_MODELS=
# Successful AI turns per user per day on the demo key. Default: 20
AIDND_DEMO_TURNS_PER_DAY=
# Comma-separated emails of "power users" (trusted testers) who bypass the daily
# demo cap entirely — unmetered turns on the shared demo key — and get the AI Chat
# page (a plain scratchpad for talking to a model, hidden from everyone else).
# Registered accounts only (guests have no email). Matched case-insensitively.
# Local (single-user) installs are always treated as power users.
AIDND_POWER_USERS=

# The AI endpoint/API key/model are NOT env vars — they are configured at
# runtime in the app's Settings page and stored (encrypted) in the database.
#
# Rate limits, request size limits, and per-user row caps are hardcoded with
# generous values (see backend/app/limits.py) and active only in multi-user
# mode — local installs are never throttled.