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Timmy-time-dashboard/src/timmy/adapters/time_adapter.py
2026-03-18 18:47:09 -04:00

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Python

"""Time adapter — circadian awareness for Timmy.
Emits time-of-day events so Timmy knows the current period
and tracks how long since the last user interaction.
"""
import logging
from datetime import UTC, datetime
from infrastructure.events.bus import emit
logger = logging.getLogger(__name__)
# Time-of-day periods: (event_name, start_hour, end_hour)
_PERIODS = [
("morning", 6, 9),
("afternoon", 12, 14),
("evening", 18, 20),
("late_night", 23, 24),
("late_night", 0, 3),
]
def classify_period(hour: int) -> str | None:
"""Return the circadian period name for a given hour, or None."""
for name, start, end in _PERIODS:
if start <= hour < end:
return name
return None
class TimeAdapter:
"""Emits circadian and interaction-tracking events."""
def __init__(self) -> None:
self._last_interaction: datetime | None = None
self._last_period: str | None = None
self._last_date: str | None = None
def record_interaction(self, now: datetime | None = None) -> None:
"""Record a user interaction timestamp."""
self._last_interaction = now or datetime.now(UTC)
def time_since_last_interaction(
self,
now: datetime | None = None,
) -> float | None:
"""Seconds since last user interaction, or None if no interaction."""
if self._last_interaction is None:
return None
current = now or datetime.now(UTC)
return (current - self._last_interaction).total_seconds()
async def tick(self, now: datetime | None = None) -> list[str]:
"""Check current time and emit relevant events.
Returns list of event types emitted (useful for testing).
"""
current = now or datetime.now(UTC)
emitted: list[str] = []
# --- new_day ---
date_str = current.strftime("%Y-%m-%d")
if self._last_date is not None and date_str != self._last_date:
event_type = "time.new_day"
await emit(event_type, source="time_adapter", data={"date": date_str})
emitted.append(event_type)
self._last_date = date_str
# --- circadian period ---
period = classify_period(current.hour)
if period is not None and period != self._last_period:
event_type = f"time.{period}"
await emit(
event_type,
source="time_adapter",
data={"hour": current.hour, "period": period},
)
emitted.append(event_type)
self._last_period = period
return emitted