Summary

This PR addresses a code review feedback by extracting repeated formatting logic into a reusable helper method, significantly improving code maintainability and readability in the Logger class.

Problem

The review feedback identified repetitive code across all logging methods:

// This pattern was repeated in 10 different methods
const cachedConfig = this.getCachedConfig();
const formatted = LogFormatter.format(LogLevel.DEBUG, message, processedData, cachedConfig.format);

Each of the following methods contained nearly identical formatting logic:

• debug(), info(), warn(), error(), log()
• debugRaw(), infoRaw(), warnRaw(), errorRaw(), logRaw()

Solution

Extracted the common formatting pattern into a private helper method:

/**
 * Helper method to format log messages with cached configuration
 * Reduces code duplication across all log methods
 */
private formatMessage(level: LogLevel, message: string, data?: LogData): string {
  const cachedConfig = this.getCachedConfig();
  return LogFormatter.format(level, message, data, cachedConfig.format);
}

Now all logging methods use the cleaner pattern:

// Before: 3 lines of formatting logic
const cachedConfig = this.getCachedConfig();
const formatted = LogFormatter.format(LogLevel.DEBUG, message, processedData, cachedConfig.format);

// After: 1 clean line
const formatted = this.formatMessage(LogLevel.DEBUG, message, processedData);

Benefits

• 🔧 Reduced Duplication: Eliminated 20+ lines of repetitive code
• 📖 Improved Readability: Each log method is now more focused and easier to understand
• 🛠️ Better Maintainability: Single point of change for formatting behavior
• ⚡ Performance Preserved: Caching mechanism remains optimal
• 🔒 Zero Breaking Changes: Fully backward compatible

Testing

• ✅ All existing tests pass (272 tests)
• ✅ Format customization tests validate functionality
• ✅ Build and lint checks pass
• ✅ Backward compatibility maintained

Review Context

This change directly addresses the Copilot review comment:

"[nitpick] There's a lot of repeated logic in each log method for fetching and passing cachedConfig.format. Consider extracting a helper that handles formatting to reduce duplication and improve readability."

The refactoring maintains all existing functionality while significantly improving code quality and maintainability.

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