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c316d5deef
This commit completes multiple refactoring efforts and documentation improvements: Code Structure Changes: - Move round_to_nearest_quarter_hour() from sensor/helpers.py to average_utils.py - Resolve circular import between price_utils.py and sensor/helpers.py - Split api.py into api/ package (client.py, queries.py, exceptions.py, helpers.py) - Split coordinator.py into coordinator/ package (core.py, cache.py, listeners.py, etc.) - Move period_utils/ to coordinator/period_handlers/ for better organization - All lint checks passing (no PLC0415 local import warnings) Documentation Additions: - Add docs/development/architecture.md with Mermaid diagrams (end-to-end flow, cache coordination) - Add docs/development/timer-architecture.md (comprehensive 3-timer system documentation) - Add docs/development/caching-strategy.md (4-layer cache system with invalidation logic) - Update docs/development/README.md with cross-references - Update AGENTS.md with new module structure and patterns Smart Boundary Tolerance: - Implement ±2 second tolerance for quarter-hour rounding - Prevents premature interval switching during HA restarts (14:59:30 stays at 14:45) - Enables boundary snapping for timer jitter (14:59:58 → 15:00) Atomic Midnight Coordination: - Add _check_midnight_turnover_needed() for race-free midnight handling - Coordinate Timer #1 (HA DataUpdateCoordinator) with Timer #2 (quarter-hour refresh) - Whoever runs first performs turnover, other skips gracefully Timer Optimization: - Change timer scheduling from second=1 to second=0 (absolute-time scheduling) - Document load distribution rationale (unsynchronized API polling prevents thundering herd) - Comprehensive explanation of 3 independent timers and their coordination Impact: Cleaner code structure with resolved circular dependencies, comprehensive documentation of timer and caching systems, and improved reliability during boundary conditions and midnight turnovers. All changes are developer-facing improvements with no user-visible behavior changes.
34 lines
1.3 KiB
Python
34 lines
1.3 KiB
Python
"""Custom exceptions for API client."""
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from __future__ import annotations
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class TibberPricesApiClientError(Exception):
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"""Exception to indicate a general API error."""
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UNKNOWN_ERROR = "Unknown GraphQL error"
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MALFORMED_ERROR = "Malformed GraphQL error: {error}"
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GRAPHQL_ERROR = "GraphQL error: {message}"
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EMPTY_DATA_ERROR = "Empty data received for {query_type}"
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GENERIC_ERROR = "Something went wrong! {exception}"
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RATE_LIMIT_ERROR = "Rate limit exceeded. Please wait {retry_after} seconds before retrying"
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INVALID_QUERY_ERROR = "Invalid GraphQL query: {message}"
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class TibberPricesApiClientCommunicationError(TibberPricesApiClientError):
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"""Exception to indicate a communication error."""
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TIMEOUT_ERROR = "Timeout error fetching information - {exception}"
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CONNECTION_ERROR = "Error fetching information - {exception}"
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class TibberPricesApiClientAuthenticationError(TibberPricesApiClientError):
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"""Exception to indicate an authentication error."""
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INVALID_CREDENTIALS = "Invalid access token or expired credentials"
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class TibberPricesApiClientPermissionError(TibberPricesApiClientError):
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"""Exception to indicate insufficient permissions."""
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INSUFFICIENT_PERMISSIONS = "Access forbidden - insufficient permissions for this operation"
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