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Pre-compiled regexes in weather_utils.py to improve performance of forecast processing. This moves regex compilation from inside loops/functions to module load time.


PR created automatically by Jules for task 3936954917451691859 started by @clayauld

💡 What:
Moved dynamic regex patterns to module-level compiled constants in `weather_utils.py`.

🎯 Why:
The `infer_chance` function is called frequently (once per event type per forecast period, ~250 times per update). `check_significant_wind` is also called often. Pre-compiling regexes avoids repeated cache lookups in Python's internal regex cache and potential recompilation overhead.

📊 Impact:
- Reduces overhead in the hot path of forecast processing.
- Improves code maintainability by centralizing regex definitions.

🔬 Measurement:
Verified functionality with existing tests `tests/test_weather_utils_filtering.py` and `tests/test_api_formatter.py`. All tests passed.
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📊 Pull Request Analysis Report

🧪 Test Results

Metric Value
Total Tests 244
✅ Passed 244
❌ Failed 0
⏭️ Skipped 0
💥 Errors 0
📈 Success Rate 100.0%

📋 Coverage Report

Metric Value
Overall Coverage 81.8%
Total Lines 2790
Covered Lines 2283
Missing Lines 507

📁 File Coverage Breakdown

  • __init__.py: 86.0%
  • api_cache.py: 83.5%
  • api_client.py: 84.5%
  • api_config.py: 75.2%
  • api_data_processor.py: 78.9%
  • api_error_handler.py: 88.9%
  • api_formatter.py: 94.2%
  • api_models.py: 95.6%
  • config_flow.py: 68.5%
  • const.py: 100.0%

🎯 Recommendations


📊 Analysis generated by GitHub Actions • View detailed test report

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🤖 Automated Code Review

🧪 Test Results

All tests passed! Your changes don't break any existing functionality.

🔍 Linting Results Summary

✅ Black (Code Formatting) - PASSED

✅ Flake8 (Code Quality) - PASSED

✅ isort (Import Sorting) - PASSED

⚠️ MyPy (Type Checking)

custom_components/satcom_forecast/config_flow.py:212: error: Unused "type: ignore" comment  [unused-ignore]
custom_components/satcom_forecast/config_flow.py:212: error: Untyped decorator makes function "async_get_options_flow" untyped  [untyped-decorator]
custom_components/satcom_forecast/config_flow.py:212: note: Error code "untyped-decorator" not covered by "type: ignore" comment

Fix: Add missing type annotations and fix type errors. Common fixes:

  • Add return type annotations: def function() -> ReturnType:
  • Add parameter type hints: def function(param: ParamType):
  • Import needed types: from typing import List, Dict, Optional

✅ Bandit (Security) - PASSED

✅ All Linting Checks Passed!

Great job! Your code meets all the linting standards.


This comment was automatically generated by GitHub Actions. Check the Actions tab for detailed logs.

@clayauld clayauld marked this pull request as ready for review December 18, 2025 19:21
@clayauld clayauld merged commit 33ebbd2 into main Dec 18, 2025
9 checks passed
@clayauld clayauld deleted the bolt/optimize-weather-utils-regex-3936954917451691859 branch December 18, 2025 19:22
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