I need a comprehensive refactoring strategy for the following code that's suffering from [DESCRIBE ISSUES: e.g., "tight coupling," "poor error handling," "excessive complexity," etc.]: ```[PASTE YOUR CODE]``` Please provide a systematic refactoring approach through these structured steps: 1) Code Quality Assessment: - Architecture and design pattern evaluation - Identification of specific code smells with examples - Cohesion and coupling analysis - Maintainability metrics and concerns - Technical debt inventory 2) Refactoring Priorities: - Critical issues ranked by impact - Quick wins vs. structural improvements - Risk assessment for each change - Dependencies between refactoring tasks - Testing implications 3) Refactoring Plan: - Step-by-step refactoring sequence - Specific refactoring patterns to apply at each step - Incremental approach that preserves functionality - Decision points and alternative approaches - Risk mitigation strategies 4) Refactored Implementation: - Complete refactored code with improvements applied - Clear documentation of changes made - Design pattern implementations - Error handling improvements - Performance considerations 5) Validation Strategy: - Test coverage recommendations - Regression testing approach - Key scenarios to validate - Performance testing considerations - Code review focus areas Include before/after comparisons highlighting key improvements, with specific attention to maintainability, readability, and adherence to software engineering principles.