CONTRIBUTING.md

🧩 Naming Conventions

🏗️ Core (Business Logic)

Use the verbDomain pattern for all core functions.

• Format: verbDomain
• Verb: CRUD or meaningful operation (create, update, remove, get, list, …)
• Domain: singular entity name (Vehicle, User, Maintenance, …)

Rules:

• Contains pure business logic — no framework or routing code except db layer.
• Avoid reserved keywords (delete → remove).
• Handle database operations.

Example:

export const createVehicle = async (
  input: z.infer<typeof vehiclesInsertSchema>,
) => {
  console.table(input);
  await db.insert(vehiclesTable).values(input);
  return {
    ok: true,
  };
};

---

🗄️ Database (Drizzle Schema)

Each domain defines its own Drizzle schema and repository, while relations live in a shared file.

Rules:

• src/db/schemas/<entity>.ts: defines table structure.
• src/schemas/relations.ts: defines inter-entity relationships.

Example files (for vehicles):

src/
  db/
    schema/
      vehicles.ts        # drizzle schema for Vehicle
  schemas/
    relations.ts         # global Drizzle relations
  core/
    vehicles/
      service.ts

---

✅ Validation

All validation schemas live in src/validations.

Rules:

• Validation per domain, matching naming (e.g., vehicles.ts).
• Use Zod.
• Validators are user by routers.

Example:

src/
  core/
    vehicle/
        validations.ts          # zod schemas for create/update vehicle

---

🌐 ORPC Routers

Routers expose domain-level endpoints connected to core logic.

• Router Name: Plural + Router (vehiclesRouter)

• Functions: Verb only (create, get, etc.)

• Business Logic: No business logic — only delegate to the core layer.

• Allowed Verbs (CRUD Operations):

  • create: Maps to Create.
  • get: Maps to Read (single entity).
  • list: Maps to Read (multiple entities).
  • update: Maps to Update.
  • remove: Maps to Delete (due to JavaScript reserved keyword).

---

✳️ TL;DR

✅ Naming Summary

Layer	Pattern	Example	Responsibility
Schema	vehicles.ts	vehicles table	Table structure
Relations	relations.ts	vehiclesRelations	Entity relationships
Validation	vehicles.ts	createVehicleSchema	Input validation
Core	verbDomain	createVehicle, listVehicles	Business logic
Router	pluralDomainRouter	vehiclesRouter	API interface

---

📁 Full Example (for one entity: Vehicle)

src/
├── db/
│   └── schemas/
│       ├─── vehicles.ts          # drizzle schema
│       └─── relations.ts         # global relations
│
├── core/
│   └── vehicles/
│       ├── validations.ts       # validations
│       └── service.ts           # business logic (createVehicle, etc.)
│
└── http/
    └── routers/
        └── vehicles.ts          # exposes vehiclesRouter

(Optional: tests/vehicles/ for unit tests.)

---