Complex State Flows
Problem Statement
Multi-step operations with dependencies between steps are prone to ordering bugs, missing preconditions, and untested edge cases. Even without a formal state machine library, thinking in states and transitions prevents bugs.
Pattern: State Machine Thinking
Problem: Complex flows have implicit states that aren't modeled, leading to invalid transitions.
Example - Checkout flow states:
IDLE → VALIDATING → PROCESSING_PAYMENT → CONF
[Description truncada. Veja o README completo no GitHub.]