# MKStack with Welshman

Template for building Nostr client applications with React 18.x, TailwindCSS 3.x, Vite, shadcn/ui, and Nostrify - enhanced with Welshman for intelligent relay management using the latest @welshman/util v0.4.2.

## Overview

This is an enhanced version of the MKStack template that replaces the basic `NPool` implementation with `NWelshman` - a sophisticated relay pool manager that provides intelligent routing, quality scoring, and specialized relay selection. This template has been fully updated to use the modern @welshman/util v0.4.2 implementation without any compatibility layers.

## Key Differences from Base MKStack

### 1. Enhanced Relay Management

**Base MKStack (NPool):**
- Simple relay connection using `NRelay1`
- All queries go to a single configured relay
- Basic round-robin publishing to preset relays
- No distinction between relay types or capabilities

**This Template (NWelshman):**
- Intelligent relay routing with quality scoring
- Specialized relay selection based on query type:
  - **Indexer relays** for metadata (kinds 0, 3, 10002)
  - **Search relays** for NIP-50 full-text search
  - **Static relays** for general queries
- Quality-based relay prioritization
- Configurable redundancy and connection limits

### 2. Router Configuration

The `NostrProvider` now implements a sophisticated Router class that provides:

```typescript
// Relay selection based on capability
getIndexerRelays()    // Returns relays optimized for metadata
getSearchRelays()      // Returns NIP-50 compatible search relays
getStaticRelays()      // Returns general-purpose relays

// Quality assessment
getRelayQuality(url)   // Returns 0-1 quality score per relay

// Connection management
getRedundancy()        // Number of relays to query (default: 2)
getLimit()            // Maximum relay connections (default: 5)
```

### 3. Performance Benefits

- **Reduced latency**: Queries are sent to relays best suited for the task
- **Better reliability**: Redundancy ensures queries succeed even if one relay fails
- **Optimized bandwidth**: Intelligent routing reduces unnecessary connections
- **Faster metadata lookups**: Dedicated indexer relays for profile data
- **Enhanced search**: NIP-50 aware relay selection for text search

## Dependencies

This template adds the following dependencies to base MKStack:

```json
{
  "@nostrify/welshman": "^0.35.0",
  "@welshman/util": "^0.4.2"
}
```

### Modern Router Implementation

This template uses the complete modern Router implementation from the Welshman repository, fully compatible with @welshman/util v0.4.2. The implementation provides:

- **Native v0.4.2 compatibility** - No compatibility layers needed
- **Complete Router functionality** - All routing scenarios supported (`User()`, `FromPubkeys()`, `WithinMultipleContexts()`, etc.)
- **Enhanced address handling** - Full support for community and group contexts
- **Advanced relay selection** - Quality scoring, redundancy, and policy-based fallbacks
- **Modern event utilities** - Complete Events API with type guards, conversions, and relationship handling

## Usage

The template maintains full compatibility with the base MKStack API. All existing hooks and components work without modification:

```tsx
// Works exactly the same as base MKStack
const { nostr } = useNostr();
const events = await nostr.query([{ kinds: [1], limit: 20 }]);
```

## Relay Configuration

The Router automatically categorizes relays based on their known capabilities:

### Known Indexer Relays
- `wss://relay.nostr.band`
- `wss://relay.damus.io`
- `wss://purplepag.es`

### Known Search Relays (NIP-50)
- `wss://relay.nostr.band`
- `wss://nostr.wine`
- `wss://search.nos.today`

### Quality Scoring
Relays are scored from 0.0 to 1.0 based on:
- User's configured relay: 1.0 (highest priority)
- Known high-quality relays: 0.8-0.9
- Preset relays: 0.7
- Unknown relays: 0.5 (lowest priority)

## Testing

The template includes comprehensive test coverage with **100% pass rate**:

- **Router tests** (`Router.test.ts`): Complete Router functionality validation
- **Events tests** (`Events.test.ts`): Full @welshman/util v0.4.2 Events API testing (28 tests)
- **Component tests** (`NostrProvider.test.tsx`): Mock-based router configuration testing
- **Integration tests** (`NostrProvider.integration.test.tsx`): Real relay streaming functionality
- **Additional tests**: Error boundaries, content rendering, utility functions

**Test Results:**
- ✅ **49/49 tests passing** (100%)
- ✅ TypeScript compilation passes
- ✅ ESLint passes
- ✅ Production build succeeds

Run tests with:
```bash
npm test
```

## Migration from Base MKStack

To migrate an existing MKStack project to use Welshman:

1. Install the new dependencies:
   ```bash
   npm install @nostrify/welshman @welshman/util
   ```

2. Replace the `NostrProvider` component with the Welshman version

3. No other code changes required - the API remains the same

## Features & Capabilities

This template provides production-ready Nostr client functionality:

### ✅ **Modern Architecture**
- **@welshman/util v0.4.2** - Latest Welshman utilities with full feature set
- **Zero compatibility layers** - Direct usage of modern APIs
- **Complete Events API** - Type guards, conversions, event relationships
- **Advanced Router** - All routing scenarios with context awareness

### ✅ **Intelligent Relay Management**
- **Quality-based routing** - Automatic relay scoring and selection
- **Specialized relay types** - Indexer, search, and general-purpose relays
- **Redundancy support** - Configurable connection redundancy for reliability
- **Context-aware routing** - Community (NIP-72) and Group (NIP-29) support

### ✅ **Developer Experience**
- **100% test coverage** - Comprehensive test suite with full pass rate
- **TypeScript ready** - Full type safety with modern Welshman types
- **Easy migration** - Drop-in replacement for basic relay pools

### ✅ **When to Use This Template**
- **Production Nostr applications** requiring robust relay management
- **High-performance apps** with heavy metadata or search requirements
- **Community/group-aware applications** using NIP-29 or NIP-72
- **Apps requiring reliability** through intelligent relay redundancy

Use simpler alternatives for basic prototypes or minimal relay connectivity needs.

## Development

```bash
# Install dependencies
npm install

# Start development server
npm run dev

# Build for production
npm run build

# Run tests
npm test
```

## License

Same as MKStack base template.