wifi-densepose/vendor/ruvector/crates/rvlite/docs/SPARC_OVERVIEW.md

SPARC Implementation Plan for RvLite

Overview

RvLite (RuVector-Lite) is a standalone, WASM-first vector database with graph and semantic capabilities that runs anywhere - browser, Node.js, Deno, Bun, edge workers - without requiring PostgreSQL.

This document outlines the complete implementation using SPARC methodology:

• Specification - Requirements, features, constraints
• Pseudocode - High-level algorithms and data structures
• Architecture - System design and component interaction
• Refinement - Detailed implementation with TDD
• Completion - Integration, optimization, deployment

Project Goals

Primary Objectives

1. Zero Dependencies - No PostgreSQL, Docker, or native compilation required
2. Universal Runtime - Browser, Node.js, Deno, Bun, Cloudflare Workers
3. Full Feature Parity - All ruvector-postgres capabilities (SQL, SPARQL, Cypher, GNN, learning)
4. Lightweight - ~5-6MB WASM bundle (gzipped)
5. Production Ready - Persistent storage, ACID transactions, crash recovery

Success Metrics

• Bundle size: < 6MB gzipped
• Load time: < 1s in browser
• Query latency: < 20ms for 1k vectors
• Memory usage: < 200MB for 100k vectors
• Browser support: Chrome 91+, Firefox 89+, Safari 16.4+
• Test coverage: > 90%

SPARC Phases

Phase 1: Specification (Weeks 1-2)

• 01_SPECIFICATION.md - Detailed requirements analysis
• 02_API_SPECIFICATION.md - Complete API design
• 03_DATA_MODEL.md - Storage and type system

Phase 2: Pseudocode (Week 3)

• 04_ALGORITHMS.md - Core algorithms
• 05_QUERY_PROCESSING.md - SQL/SPARQL/Cypher execution
• 06_INDEXING.md - HNSW and graph indexing

Phase 3: Architecture (Week 4)

• 07_SYSTEM_ARCHITECTURE.md - Overall design
• 08_STORAGE_ENGINE.md - Persistence layer
• 09_WASM_INTEGRATION.md - WASM bindings

Phase 4: Refinement (Weeks 5-7)

• 10_IMPLEMENTATION_GUIDE.md - TDD approach
• 11_TESTING_STRATEGY.md - Comprehensive tests
• 12_OPTIMIZATION.md - Performance tuning

Phase 5: Completion (Week 8)

• 13_INTEGRATION.md - Component integration
• 14_DEPLOYMENT.md - NPM packaging and release
• 15_DOCUMENTATION.md - User guides and API docs

Implementation Timeline

Week 1-2: SPECIFICATION
  ├─ Requirements gathering
  ├─ API design
  ├─ Data model definition
  └─ Validation with stakeholders

Week 3: PSEUDOCODE
  ├─ Core algorithms
  ├─ Query processing logic
  └─ Index structure design

Week 4: ARCHITECTURE
  ├─ System design
  ├─ Storage engine design
  └─ WASM integration plan

Week 5-7: REFINEMENT (TDD)
  ├─ Week 5: Core implementation
  │   ├─ Storage engine
  │   ├─ Vector operations
  │   └─ Basic indexing
  ├─ Week 6: Query engines
  │   ├─ SQL executor
  │   ├─ SPARQL executor
  │   └─ Cypher executor
  └─ Week 7: Advanced features
      ├─ GNN layers
      ├─ Learning/ReasoningBank
      └─ Hyperbolic embeddings

Week 8: COMPLETION
  ├─ Integration testing
  ├─ Performance optimization
  ├─ Documentation
  └─ Beta release

Development Workflow

1. Test-Driven Development (TDD)

Every feature follows:

1. Write failing test
2. Implement minimal code to pass
3. Refactor for quality
4. Document and review

2. Continuous Integration

On every commit:
  ├─ cargo test (Rust unit tests)
  ├─ wasm-pack test (WASM tests)
  ├─ npm test (TypeScript integration tests)
  ├─ cargo clippy (linting)
  └─ cargo fmt --check (formatting)

3. Quality Gates

• All tests must pass
• Code coverage > 90%
• No clippy warnings
• Documentation complete
• Performance benchmarks green

Key Technologies

Rust Crates

• wasm-bindgen - WASM/JS interop
• serde - Serialization
• dashmap - Concurrent hash maps
• parking_lot - Synchronization
• simsimd - SIMD operations
• half - f16 support
• rkyv - Zero-copy serialization

JavaScript/TypeScript

• wasm-pack - WASM build tool
• TypeScript 5+ - Type-safe API
• Vitest - Testing framework
• tsup - TypeScript bundler

Build Tools

• cargo - Rust package manager
• wasm-pack - WASM compiler
• pnpm - Fast npm client
• GitHub Actions - CI/CD

Project Structure

crates/rvlite/
├── docs/                   # SPARC documentation (this directory)
│   ├── SPARC_OVERVIEW.md
│   ├── 01_SPECIFICATION.md
│   ├── 02_API_SPECIFICATION.md
│   ├── 03_DATA_MODEL.md
│   ├── 04_ALGORITHMS.md
│   ├── 05_QUERY_PROCESSING.md
│   ├── 06_INDEXING.md
│   ├── 07_SYSTEM_ARCHITECTURE.md
│   ├── 08_STORAGE_ENGINE.md
│   ├── 09_WASM_INTEGRATION.md
│   ├── 10_IMPLEMENTATION_GUIDE.md
│   ├── 11_TESTING_STRATEGY.md
│   ├── 12_OPTIMIZATION.md
│   ├── 13_INTEGRATION.md
│   ├── 14_DEPLOYMENT.md
│   └── 15_DOCUMENTATION.md
│
├── src/
│   ├── lib.rs              # WASM entry point
│   ├── storage/            # Storage engine
│   │   ├── mod.rs
│   │   ├── database.rs     # In-memory database
│   │   ├── table.rs        # Table structure
│   │   ├── persist.rs      # Persistence layer
│   │   └── transaction.rs  # ACID transactions
│   ├── query/              # Query execution
│   │   ├── mod.rs
│   │   ├── sql/            # SQL engine
│   │   ├── sparql/         # SPARQL engine
│   │   └── cypher/         # Cypher engine
│   ├── index/              # Indexing
│   │   ├── mod.rs
│   │   ├── hnsw.rs         # HNSW index
│   │   └── btree.rs        # B-Tree index
│   ├── graph/              # Graph operations
│   │   ├── mod.rs
│   │   ├── traversal.rs
│   │   └── algorithms.rs
│   ├── learning/           # Self-learning
│   │   ├── mod.rs
│   │   └── reasoning_bank.rs
│   ├── gnn/                # GNN layers
│   │   ├── mod.rs
│   │   ├── gcn.rs
│   │   └── graphsage.rs
│   └── bindings.rs         # WASM bindings
│
├── tests/
│   ├── integration/        # Integration tests
│   ├── wasm/               # WASM-specific tests
│   └── benchmarks/         # Performance benchmarks
│
├── examples/
│   ├── browser/            # Browser examples
│   ├── nodejs/             # Node.js examples
│   └── deno/               # Deno examples
│
├── Cargo.toml              # Rust package config
└── README.md               # Quick start guide

Next Steps

1. Read Specification Documents (Week 1-2)

   • Start with 01_SPECIFICATION.md
   • Review 02_API_SPECIFICATION.md
   • Understand 03_DATA_MODEL.md

2. Study Pseudocode (Week 3)

   • Review algorithms in 04_ALGORITHMS.md
   • Understand query processing in 05_QUERY_PROCESSING.md

3. Review Architecture (Week 4)

   • Study system design in 07_SYSTEM_ARCHITECTURE.md
   • Plan implementation approach

4. Begin TDD Implementation (Week 5+)

   • Follow 10_IMPLEMENTATION_GUIDE.md
   • Write tests first, then implement

Resources

• DuckDB-WASM Architecture
• SQLite WASM Docs
• wasm-bindgen Guide
• SPARC Methodology

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Start Date: 2025-12-09 Target Completion: 2025-02-03 (8 weeks) Status: Phase 1 - Specification