inventory/README.md

Stockroom

A dense inventory tracker with low-stock alerts — a real, buildable Hanzo app you fork on hanzo.app and deploy live on Hanzo Cloud.

Track every SKU by quantity and location, watch on-hand counts against reorder points, and let low stock flag itself in amber before it becomes a stockout.

• UI — @hanzo/gui (the Hanzo design system) under Vite + React 19. 100% gui primitives — no Tailwind, no second kit.
• Auth — @hanzo/iam, OAuth2 PKCE against hanzo.id. No local passwords — IAM owns every credential interaction.
• Data — @hanzo/base, the IAM-native, org-scoped data plane. The items inventory is a real Base collection.

The app

Four surfaces over one items collection:

• Inventory — a dense, sortable, searchable data-table of every SKU (SKU, item, location, on-hand, reorder point, status). Rows flag themselves: amber when on-hand is at/under the reorder point, red at zero.
• Item detail — status, on-hand vs reorder point and a suggested order size, plus the writers: receive/pick units, change the reorder point, delete.
• Alerts — every item at or below its reorder point (out first, then the deepest shortfall), each with a suggested order quantity.
• Manage — add a SKU with its starting count, reorder point and location.

Stack (pinned)

Package	Version
react / react-dom	^19.2.4
@hanzo/gui + @hanzogui/config	7.3.0
@hanzo/iam	^0.13.1
@hanzo/base	^0.2.1
vite	^6 (@vitejs/plugin-react)
typescript	5.9.3

Run it

npm install
npm run dev        # http://localhost:5173
npm run build      # tsc --noEmit && vite build  ->  dist/
npm run preview    # serve the production build (SPA fallback on)

Out of the box it runs against live Hanzo (hanzo.id + api.hanzo.ai) — no config needed to see the sign-in flow. Copy .env.example to .env to point at a different environment.

Environment contract

Only VITE_-prefixed vars reach the browser (this is a static SPA — there is no server). Defaults in parentheses.

Var	Purpose
VITE_HANZO_IAM_URL (https://hanzo.id)	OIDC issuer.
VITE_HANZO_CLIENT_ID (hanzo-app)	IAM application (<org>-<app>). Its redirect-URI list must allow this deploy's /auth/callback — see Ambient IAM.
VITE_HANZO_REDIRECT_URI (${origin}/auth/callback)	PKCE redirect.
VITE_HANZO_BASE_URL (https://api.hanzo.ai)	Browser-reachable Hanzo Base data plane. Deploy injects the provisioned URL.
VITE_HANZO_API_URL / VITE_HANZO_API_KEY	Optional — only if the app calls the Hanzo LLM gateway. Unused by Stockroom; never commit a real key.

How auth works — ambient IAM

login() starts an OAuth2 PKCE S256 redirect to hanzo.id; hanzo.id returns to /auth/callback, where handleCallback() exchanges the code for tokens (stored in localStorage, refresh-aware via offline_access). Every deployed app is a static site at <slug>.hanzo.app; there is no server token — the SPA authenticates the user in the browser and carries the resulting IAM JWT to Base. "Ambient" means the app just reads the signed-in user via that token.

The one deploy requirement: the IAM client (VITE_HANZO_CLIENT_ID) must list this origin's /auth/callback as an allowed redirect URI. Register a https://*.hanzo.app/auth/callback wildcard on the shared client so every forked app works, or register a dedicated hanzo-<app> client per template.

How data works — Base from schema.sql

schema.sql is the app's databaseSchema (SQL DDL). On publish, Hanzo Cloud translates the items CREATE TABLE into a Hanzo Base collection (provisionBaseFromDDL, additive + idempotent). Base manages id/created/updated/owner/org, stamps owner+org from the verified IAM principal, and scopes every row to the caller's org via the rule @request.auth.org_id = org — a teammate in your org sees the row; other orgs cannot. At runtime the views read/write that collection through @hanzo/base/react (useQuery/useMutation) carrying the IAM token. Keep schema.sql in lockstep with src/lib/stock.ts and the views.

Deploy — Hanzo Cloud

hanzo.yml declares a static build (npm run build → dist/, served at <slug>.hanzo.app) plus the Base schema to provision and the env to inject. Do not build a container image locally — Hanzo Cloud owns builds and deploys. CI here only proves the template compiles green.

Layout

src/
  main.tsx          entry
  providers.tsx     GuiProvider -> IamProvider -> BaseProvider(client=IAM-token)
  app.tsx           route (/auth/callback) + auth gate
  gui.config.ts     createGui(defaultConfig from @hanzogui/config/v5)
  iam.config.ts     IAM PKCE config
  env.ts            the VITE_ env contract, one place
  lib/base.ts       BaseClient carrying the IAM bearer token
  lib/stock.ts      Item type, status/severity/reorder math, the warehouse palette
  auth/callback.tsx PKCE return leg
  views/
    signed-out.tsx  landing + illustrative preview table
    home.tsx        shell: brand bar + tabs + KPI strip + detail leg
    inventory.tsx   the dense, sortable stock table
    detail.tsx      item detail + stock adjust / reorder point / delete
    alerts.tsx      low-stock alerts, most urgent first
    manage.tsx      add a SKU
    brand.tsx       the Stockroom mark
schema.sql          databaseSchema -> the `items` Base collection on publish
hanzo.yml           Hanzo Cloud build/deploy manifest