feat: DFA State Machine + JSON Logic Integration for Asset Lifecycle Management

[ottobot-ai]

Overview

Implements comprehensive DFA state machine framework with JSON Logic integration for declarative asset lifecycle management.

Key Features

Core Implementation

• DFA State Machine Types: Complete type definitions for states, transitions, and machines
• JSON Logic Integration: Guards and effects using JSON Logic expressions
• Runtime Execution: DFAInstance for managing state machine execution
• Producer-Validator Integration: Seamless integration with existing framework

Asset Lifecycle Templates

• BASIC_ASSET_LIFECYCLE:
• MULTI_PARTY_ESCROW: Complex escrow with dispute resolution

Developer Experience

• State Machine Validation: Comprehensive validation with error reporting
• DOT Visualization: Generate Graphviz visualizations of state machines
• Debugging Tools: Guard/effect evaluation tracking
• Template Registry: Reusable lifecycle patterns

Technical Implementation

Files Added

• : Core DFA types and JSON Logic integration
• : Basic JSON Logic evaluation trait
• : Comprehensive test suite (15 tests)

Integration Points

• Extends existing framework
• Compatible with OttoChain JSON Logic VM
• DataUpdate integration for state transitions
• Circe JSON serialization support

Testing

• ✅ 15 comprehensive test cases covering all major functionality
• ✅ Compilation successful in shared-data module
• ✅ Guard evaluation with JSON Logic expressions
• ✅ Effect execution and state transitions
• ✅ Template validation and DOT visualization

Usage Examples

Basic State Machine Usage

val template = AssetLifecycleTemplates.BASIC_ASSET_LIFECYCLE
val instance = DFAInstance(...)
val guardResults = StateMachineValidation.evaluateGuards(transition, context, instance)

Asset Lifecycle Template

val template = AssetLifecycleTemplates.getTemplate("basic_asset_lifecycle").get
val validation = template.validate
// validation.isValid == true

Future Enhancements

• Full JLVM integration (currently basic implementation)
• Additional lifecycle templates
• Multi-dimensional authenticated tries integration
• Advanced debugging and profiling tools

Resolves: Card #6989550cd829dcc75a35f80a (🔄 DFA State Machine + JSON Logic Integration)

Related

• Producer-Validator Framework: Builds on existing asset management foundation
• 16-Type Token System: Ready for integration with behavior matrix
• Authenticated Tries: Prepared for multi-dimensional state organization