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625bc222ca
Introduce TimeService as single source of truth for all datetime operations, replacing direct dt_util calls throughout the codebase. This establishes consistent time context across update cycles and enables future time-travel testing capability. Core changes: - NEW: coordinator/time_service.py with timezone-aware datetime API - Coordinator now creates TimeService per update cycle, passes to calculators - Timer callbacks (#2, #3) inject TimeService into entity update flow - All sensor calculators receive TimeService via coordinator reference - Attribute builders accept time parameter for timestamp calculations Key patterns replaced: - dt_util.now() → time.now() (single reference time per cycle) - dt_util.parse_datetime() + as_local() → time.get_interval_time() - Manual interval arithmetic → time.get_interval_offset_time() - Manual day boundaries → time.get_day_boundaries() - round_to_nearest_quarter_hour() → time.round_to_nearest_quarter() Import cleanup: - Removed dt_util imports from ~30 files (calculators, attributes, utils) - Restricted dt_util to 3 modules: time_service.py (operations), api/client.py (rate limiting), entity_utils/icons.py (cosmetic updates) - datetime/timedelta only for TYPE_CHECKING (type hints) or duration arithmetic Interval resolution abstraction: - Removed hardcoded MINUTES_PER_INTERVAL constant from 10+ files - New methods: time.minutes_to_intervals(), time.get_interval_duration() - Supports future 60-minute resolution (legacy data) via TimeService config Timezone correctness: - API timestamps (startsAt) already localized by data transformation - TimeService operations preserve HA user timezone throughout - DST transitions handled via get_expected_intervals_for_day() (future use) Timestamp ordering preserved: - Attribute builders generate default timestamp (rounded quarter) - Sensors override when needed (next interval, daily midnight, etc.) - Platform ensures timestamp stays FIRST in attribute dict Timer integration: - Timer #2 (quarter-hour): Creates TimeService, calls _handle_time_sensitive_update(time) - Timer #3 (30-second): Creates TimeService, calls _handle_minute_update(time) - Consistent time reference for all entities in same update batch Time-travel readiness: - TimeService.with_reference_time() enables time injection (not yet used) - All calculations use time.now() → easy to simulate past/future states - Foundation for debugging period calculations with historical data Impact: Eliminates timestamp drift within update cycles (previously 60+ independent dt_util.now() calls could differ by milliseconds). Establishes architecture for time-based testing and debugging features. |
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| .. | ||
| __init__.py | ||
| average.py | ||
| price.py | ||