.env.example

# Dotty — self-hosted StackChan robot assistant
# Copy to .env and fill in real values before deploying.

# --- xiaozhi-esp32-server (docker-compose.yml) ---

# Container timezone (IANA format).
TZ=Australia/Brisbane

# --- Kid Mode (child-safe guardrails) ---

# Set to "true" (default) to enable child-safe rules: age-appropriate
# vocabulary, topic blocklist, self-harm redirect, jailbreak resistance.
# Set to "false" for general-purpose assistant mode.
DOTTY_KID_MODE=true

# --- Admin API auth (X-Admin-Token) ---

# Shared secret protecting the /xiaozhi/admin/* routes (inject-text, say,
# set-state, play-asset, ...). `make setup` generates one into .env
# automatically if missing.
#
# Semantics: unset/empty = permissive mode — xiaozhi-server accepts admin
# calls with no auth (the pre-#149 behaviour). Set = xiaozhi-server
# requires a matching X-Admin-Token header on every admin call.
#
# Every caller reads this SAME variable: the bridge dashboard,
# dotty-behaviour's consumers, and the dotty-pi voice tools. When you set
# it, set the same value in each service's deploy-dir .env (bridge/,
# dotty-behaviour/, dotty-pi/) in the same restart window, or their admin
# calls will 401.
# DOTTY_ADMIN_TOKEN=

# --- bridge.py (admin dashboard) ---

# FastAPI listen port for the dashboard service (/ui, /admin/*, /health,
# /metrics). Post-#36 the bridge is dashboard-only; its former ZeroClaw
# voice path was retired (brain is now the dotty-pi container).
PORT=8081

# --- Perception: face greeter ---

# What the bridge says when a face is freshly detected. The firmware
# also fires WakeWordInvoke("face") on detection, which opens the mic
# regardless of this value. Trade-off:
#
#   FACE_GREET_TEXT="Hi!"   → popup chime + verbal "Hi!" + mic open
#                             (warmer; slightly noisy in everyday use)
#   FACE_GREET_TEXT=""      → popup chime + mic open, silent greeting
#                             (less chatty; mic still listens)
#
# Default is "Hi!". Set to "" to keep the mic-open behaviour without
# the verbal greeting.
# FACE_GREET_TEXT=Hi!

# Minimum seconds between consecutive face-detected greetings for the
# same device. Stops the robot re-greeting on every casual walk-by
# while still re-engaging after a real absence. The face state machine
# bounces in/out of the 2 s grace period during normal head movements,
# so any value below ~10 s will feel chatty. Default 30 s.
# FACE_GREET_MIN_INTERVAL_SEC=30

# Legacy alias for FACE_GREET_MIN_INTERVAL_SEC. Honoured for back-
# compat — set the new name on fresh deployments.
# FACE_GREET_COOLDOWN_SEC=30

# --- Purr-on-head-pet (Phase 1.7, Option B server-pushed) ---

# Path to the pre-rendered purr loop. Default points at the
# scaffolded location; drop a `purr.opus` file there to enable. See
# bridge/assets/README.md for spec (1-2 s loop, 24 kHz mono Opus).
# Until the file exists, the consumer logs a warning and no-ops.
# PURR_AUDIO_PATH=bridge/assets/purr.opus

# Per-device cooldown so a continuous head-pet doesn't re-trigger
# the clip on every event burst. Default 5 s.
# PURR_COOLDOWN_SEC=5

# Approximate playback duration. Used to extend `last_chat_t` while
# the purr plays so the sound localizer doesn't turn the head toward
# the speaker mid-purr. Match this to your purr.opus length.
# PURR_DURATION_SEC=2.0

# --- API keys (secrets — never commit real values) ---

# Required if using OpenAICompat LLM provider with a cloud endpoint.
# Get one at https://openrouter.ai/keys (OpenRouter) or https://platform.openai.com/api-keys (OpenAI).
# Not needed if running fully local via Ollama.
# OPENROUTER_API_KEY=sk-or-v1-...

# Required if using the vision feature (camera -> VLM description).
# Same key as above works if your provider supports vision models.
# VISION_API_KEY=sk-or-v1-...

# --- Google Calendar integration (optional) ---

# Comma-separated Google Calendar IDs for context injection.
# Requires a service account JSON at CALENDAR_SA_PATH.
# CALENDAR_ID=abc123@group.calendar.google.com
# CALENDAR_SA_PATH=/var/lib/dotty-bridge/secrets/google-calendar-sa.json

# Background poll cadence for the calendar cache refresher (seconds).
# Default 900 s = 15 min. Lower than CALENDAR_TTL_SEC so transient
# fetch failures don't leave a stale cache visible for the full TTL.
# CALENDAR_POLL_SEC=900

# Per-event person tag regex. Must define named groups `person` and
# `rest`. Default extracts `[Name] real summary` where Name is 1-32
# chars of [A-Za-z0-9_-] starting with a letter. Untagged events are
# bucketed under CALENDAR_HOUSEHOLD_BUCKET.
# CALENDAR_PERSON_PREFIX_RE=^\s*\[(?P<person>[A-Za-z][A-Za-z0-9_-]{0,31})\]\s*(?P<rest>.+)$

# Bucket name for events with no person tag. Leading underscore so it
# can't collide with a real first name typed into a calendar event.
# CALENDAR_HOUSEHOLD_BUCKET=_household

# --- Household registry ---
# Path to the YAML file that lists who lives here (display names,
# personalities, calendar prefixes, self-ID phrases, birthdates). The
# registry powers the speaker resolver, the proactive greeter, and the
# `[Speaking with]` block in voice prompts. Hot-reloaded on file change.
# Empty / missing file is fine — everyone resolves to `_household`.
# See `household.example.yaml` at the repo root for the schema.
# HOUSEHOLD_YAML_PATH=/var/lib/dotty-bridge/household.yaml

# --- Speaker resolver (Phase 1 identity) ---
# How long a self-ID phrase like "It's Brett" latches the channel onto
# that person. Default 600 s (10 min) — covers a typical conversation
# without dropping the user mid-thought. Anyone can override mid-session
# by saying another self-ID phrase ("It's Sam").
# SPEAKER_STICKY_SEC=600

# How wide a window (in minutes) calendar `[Person]` events still count
# as a prior. Defaults to 30 min — tight enough that "Hudson's library
# day at 10am" doesn't bias inputs at 5pm.
# SPEAKER_CALENDAR_WINDOW_MIN=30

# How recent a `face_recognized` perception event must be to vote.
# Default 30 s. Inert today (Layer 4 face-rec firmware not shipped);
# becomes the dominant signal once it lands.
# SPEAKER_PERCEPTION_WINDOW_SEC=30

# Below this confidence the resolver flags `ask_clarification=True` so
# the bridge can surface "Is that you, Hudson?" instead of guessing.
# SPEAKER_ASK_THRESHOLD=0.5

# --- Proactive Greetings (Layer 6) ---
# Server-initiated greetings when a recognised face walks into frame.
# See docs/proactive-greetings.md for the full architecture.

# Master kill switch.
# GREETER_ENABLED=true

# Subscribe to face_detected as a fallback while Layer 4 face
# recognition isn't fully wired. Treats every detection as
# identity=unknown — combine with GREETER_GREET_UNKNOWN to actually
# fire a greeting.
# GREETER_USE_FACE_DETECTED=false

# Greet unrecognised faces with a generic "Hello! I don't think we've met."
# GREETER_GREET_UNKNOWN=false

# Minimum hours between greetings for the same identity.
# GREETER_COOLDOWN_HOURS=4

# Hard cap on greetings per identity per day. Cooldown already prevents
# back-to-back firings; this is a ceiling, not a politeness lever.
# GREETER_PER_DAY_MAX=3

# Persistent greet log so a bridge restart doesn't re-greet everyone.
# GREETER_STATE_PATH=/var/lib/dotty-bridge/state/greeter_state.json

# Word cap fed to the LLM prompt.
# GREETER_GREETING_MAX_WORDS=15

# --- Blind mode (low-light camera handling) ---
# The OV-series camera produces unusable frames in the dark. When blind
# mode is active (civil dusk → civil dawn at the configured location):
#   • the face-greeter ignores face_detected events (no 3 AM greets to
#     noisy frames)
#   • /api/vision/explain short-circuits with DOTTY_BLIND_PHOTO_REPLY
#     instead of feeding a near-black JPEG to the VLM
#   • [Context: ...] in the voice prompt notes "It's nighttime and Dotty
#     can't see well right now" so unprompted "what do you see?" gets a
#     sensible answer instead of a hallucination.
# Defaults match LOCAL_TZ (Brisbane). Set DOTTY_BLIND_MODE=false to
# disable all blind-mode gating (operator killswitch).
# DOTTY_BLIND_MODE=true
# DOTTY_BLIND_LAT=-27.47
# DOTTY_BLIND_LON=153.03
# DOTTY_BLIND_PHOTO_REPLY=It's too dark to see right now. Can you turn a light on?

# --- Debug flags ---

# (No bridge debug flags currently. The former ZEROCLAW_STREAM_DEBUG flag
# was retired with the ZeroClaw voice path in the #36 cutover.)