This directory contains shared code that is used by both the frontend and backend of the RackTracker pool match scoring system.

• types.ts - TypeScript interfaces and types used throughout the application
• utils.ts - Utility functions for common operations

The types.ts file defines the core data structures used in the application:

• Player - Player information
• Match - Match details and scoring
• Rack - Individual rack results
• RackEvent - Special events during racks (BR, RO, fouls, etc.)
• Tournament - Tournament information
• PlayerStats - Player statistics

The utils.ts file provides helper functions:

• formatDate - Format Unix timestamps into readable dates
• calculatePlayerStats - Calculate derived statistics from raw data
• generateMatchSummary - Create a formatted match summary text
• formatPlayerName - Format player names in various styles

These shared files ensure consistency between frontend and backend code. They should be imported directly:

import { Match, Player } from '../shared/types';
import { formatDate, calculatePlayerStats } from '../shared/utils';