Julian Pawlowski 85fe9666a7 feat(coordinator): add atomic midnight turnover coordination ... Introduced TibberPricesMidnightHandler to prevent duplicate midnight turnover when multiple timers fire simultaneously. Problem: Timer #1 (API poll) and Timer #2 (quarter-hour refresh) both wake at midnight, each detecting day change and triggering cache clear. Race condition caused duplicate turnover operations. Solution: - Atomic flag coordination: First timer sets flag, subsequent timers skip - Persistent state survives HA restart (cache stores last_turnover_time) - Day-boundary detection: Compares current.date() vs last_check.date() - 13 comprehensive tests covering race conditions and HA restart scenarios Architecture: - coordinator/midnight_handler.py: 165 lines, atomic coordination logic - coordinator/core.py: Integrated handler in coordinator initialization - coordinator/listeners.py: Delegate midnight check to handler Impact: Eliminates duplicate cache clears at midnight. Single atomic turnover operation regardless of how many timers fire simultaneously.		2025-11-22 04:45:41 +00:00
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__init__.py	test: add pytest framework and midnight-crossing tests	2025-11-21 23:47:01 +00:00
test_avg_none_fallback.py	fix(calculations): handle negative electricity prices correctly	2025-11-22 04:45:23 +00:00
test_cache_age.py	fix(coordinator): use coordinator update timestamp for cache validity	2025-11-22 04:44:22 +00:00
test_cache_validity.py	fix(coordinator): use coordinator update timestamp for cache validity	2025-11-22 04:44:22 +00:00
test_cache_validity_after_midnight.py	fix(coordinator): use coordinator update timestamp for cache validity	2025-11-22 04:44:22 +00:00
test_chart_data_push_updates.py	feat(sensors): add lifecycle callback for chart_data_export sensor	2025-11-22 04:44:38 +00:00
test_config_validators.py	refactor(config): use negative values for Best Price min_distance	2025-11-22 04:44:57 +00:00
test_midnight_handler.py	feat(coordinator): add atomic midnight turnover coordination	2025-11-22 04:45:41 +00:00
test_midnight_periods.py	test: add pytest framework and midnight-crossing tests	2025-11-21 23:47:01 +00:00
test_midnight_turnover.py	refactor(config): use negative values for Best Price min_distance	2025-11-22 04:44:57 +00:00
test_minmax_none_fallback.py	fix(calculations): handle negative electricity prices correctly	2025-11-22 04:45:23 +00:00
test_percentage_calculations.py	fix(calculations): handle negative electricity prices correctly	2025-11-22 04:45:23 +00:00
test_price_calculations.py	fix(calculations): handle negative electricity prices correctly	2025-11-22 04:45:23 +00:00
test_rating_threshold_validation.py	fix(calculations): handle negative electricity prices correctly	2025-11-22 04:45:23 +00:00