tenniscommon — Project Summary

tenniscommon is a shared TypeScript domain library used across the Tennis application ecosystem. It centralizes the interfaces/types, validation schemas, utility helpers, and initial/default data + stats factories so both:

• tennisClient (Next.js frontend) and
• tennisServer (Node.js / Express API backend)

consume the same source of truth for data shapes and validation rules.

What it provides

The library is organized by feature/domain (for example: general, player, opponent, matchplay, tournament, training, spending, performance, chat). Each domain typically contains:

• Interfaces & unions for strong typing across client/server
• Zod validation for runtime input validation (useful for API boundaries and form validation)
• Initial data / stats creators to generate safe “empty/default” objects for new records and dashboards
• Exports via index files so consumers can import per-domain

Build & distribution

Because it’s consumed by both Node.js and Next.js, tenniscommon is built in two module formats:

• CommonJS (CJS) output in dist/cjs
• ES Modules (ESM) output in dist/esm
• Type declarations in dist/types

This allows modern ESM tooling (like Next.js) and traditional Node.js CommonJS usage to both work cleanly from the same package.