feat(cli): fail the update when a project needs manual review

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-20 12:12:38 +05:30
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+# WrNexus
+
+> WrNexus is an SSR-first, **Bun-native** full-stack web framework. UI is written in
+> `.wrn` files (its own component language — NOT React/JSX/Vue). Routing is file-based.
+> This document teaches an AI how to write correct WrNexus code. It is private and
+> post-dates model training data, so rely on THIS document, not prior web-framework
+> assumptions.
+
+## Golden rules
+
+- **Pages, components, and layouts are `.wrn` files.** Do NOT write `.tsx`/`.jsx`/React
+  for UI. Do NOT use `useState`, hooks, JSX, or a client bundler.
+- **Routing is file-based** under `app/`. The filename is the route. No router config.
+- **Interactivity** lives in `state` + `{expr}` + `@event` inside `.wrn`. Components render
+  on the server and hydrate automatically — you never write client-side JS islands.
+- **Runtime is Bun only** (uses `Bun.serve`, `bun:sqlite`, `Bun.password`, …). Node is not supported.
+- To add files, prefer the CLI: `wrnexus generate page <Name>` / `component <name>` / `api <path>` / `schema <name>`.
+
+## Project layout
+
+```
+app/
+  pages/       *.wrn  → routes: index.wrn = "/", about.wrn = "/about", blog/[slug].wrn = "/blog/:slug"
+  components/  *.wrn  → reusable UI, mounted in a page/component via <div data-component="name" ...props>
+  layouts/     *.wrn  → named layouts; a page opts in with  layout = "name"
+  api/         *.ts   → HTTP handlers: export const GET/POST/PUT/PATCH/DELETE = async (ctx) => Response
+  middleware/  *.ts   → export default async (ctx, next) => next()
+  realtime/    *.ts   → export default defineRoom({ ... }) from "@wrnexus/core"  (ws://host/realtime/<name>)
+  schemas/     *.ts   → validation schemas (the `v` builder), used by forms + parseBody
+  locales/     *.json → i18n messages per language
+  db/          schema.ts, queries/*.sql, migrations/*.sql
+  styles/      global.css  → Tailwind (default) or plain CSS
+wrnexus.config.ts    → app config (AppConfig from "@wrnexus/styles")
+public/              → static assets served at /
+```
+
+## `.wrn` page
+
+```wrn
+page Home {
+  layout = "public"          // optional: a component in app/layouts/<name>.wrn ("none" to skip)
+
+  state count = 0            // optional: seeds client-reactive state (omit for pure SSR)
+
+  seo {
+    title = "Home"
+    description = "..."
+    canonical = "/"
+  }
+
+  view {
+    <h1>Hello</h1>
+    <p>Count is {count}, doubled is {count * 2}.</p>
+    <button @click="count++">Increment</button>
+    <div data-component="counter" start="5" label="Clicks"></div>
+  }
+
+  style {
+    h1 { color: var(--wrn-color-text); }
+  }
+}
+```
+
+## `.wrn` component
+
+```wrn
+component Counter {
+  props {                    // props come from mount attributes; each is coerced to the
+    start = 0                // TYPE of its default (so start="5" arrives as the number 5)
+    label = "Count"
+  }
+  state count = start        // state may reference props
+  view {
+    <button @click="count++">{label}: {count}</button>
+  }
+}
+```
+
+Mount it from any page/component: `<div data-component="counter" start="0" label="Clicks"></div>`.
+Components render on the server with their props, then hydrate — no per-component JS.
+
+## The `view { }` block (plain HTML + a few directives)
+
+- `{expr}` — interpolate a JS expression. Reactive if it references `state`: `{count}`, `{count * 2}`, `{user.name}`.
+- `@event="expr"` — bind a DOM event; the expression runs in the reactive scope: `@click="count++"`, `@input="name = event.target.value"`.
+- `<div data-component="name" prop="v">` — mount a component (attrs become string props, coerced).
+- `<slot></slot>` / `<slot name="x"></slot>` — component/layout slots; fill with `<div data-slot="x">…</div>`.
+- **Server loop (DB/list/table):** `{#each <list> as <item>[, <i>]} …rows… {:empty} …fallback… {/each}` — iterates SSR data on the server and renders markup per item. `{item.field}` interpolates (HTML-escaped, XSS-safe). `<list>` is a JS expression, usually an `ssr` data binding (see "Data-driven tables" below). This is how you render a database table in `.wrn`.
+- **Server conditional:** `{#if <expr>} … {:else if <expr>} … {:else} … {/if}` — renders the first truthy branch on the server. `<expr>` can reference `ssr` data, or the `item`/`index` of an enclosing `{#each}`. Works at page level and inside loops (e.g. `{#if r.active}<span>●</span>{:else}<span>○</span>{/if}` per row). For client-side show/hide based on reactive `state`, use `data-show="expr"` instead.
+- i18n: `{t:home.title}` in text, `t:placeholder="form.name"` on attributes — resolved per request from `app/locales/`.
+- Theme: any element with `data-wrn-theme-toggle` toggles light/dark; `data-wrn-theme-set="dark"` sets it.
+- Void/self-closing tags are fine: `<br />`, `<img src="..." />`.
+- Only `{` and `}` are special (interpolation). Don't use a bare `}` in view text.
+
+## Data-driven tables / lists (server-rendered `.wrn`)
+
+Use an `ssr` data binding to fetch rows on the server, then `{#each}` to render them.
+This renders on the **server** (SSR-first) and is HTML-escaped by default.
+
+```wrn
+page Admin {
+  layout = "dashboard"
+
+  // Fetch on the server. The api handler at /api/contacts returns { contacts: [...] };
+  // this block's `return contacts` exposes that array (via `$data`) as the binding `rows`.
+  ssr {
+    api rows GET /api/contacts { return contacts }
+  }
+
+  view {
+    <table>
+      <tbody>
+        {#each rows as r, i}
+          <tr>
+            <td>#{i}</td>
+            <td>{r.name}</td>
+            <td><a href="mailto:{r.email}">{r.email}</a></td>
+          </tr>
+        {:empty}
+          <tr><td colspan="3">No submissions yet.</td></tr>
+        {/each}
+      </tbody>
+    </table>
+  }
+}
+```
+
+The matching API returns the array under a key the `ssr` block reads:
+
+```ts
+// app/api/contacts.ts  → GET /api/contacts
+import { getDb } from "@wrnexus/db";
+export const GET = async () => {
+  const contacts = await getDb().all("SELECT id, name, email FROM contacts ORDER BY id DESC");
+  return Response.json({ contacts });   // ssr block does `return contacts`
+};
+```
+
+**Prefer this `.wrn` + `{#each}` approach for DB-backed tables and lists.** (`.ts`/`.tsx`
+pages returning an HTML string are also supported for fully-custom programmatic rendering,
+but a `.wrn` page with `ssr` data + `{#each}` is the idiomatic, SSR-first way.)
+
+## API routes (`app/api/*.ts`)
+
+```ts
+// app/api/users/list.ts  → GET /api/users/list
+import { getDb } from "@wrnexus/db";
+
+export const GET = async (ctx) => {
+  return Response.json({ users: await ListUsers(getDb()) });
+};
+
+export const POST = async (ctx) => {
+  const body = await ctx.req.json();
+  return Response.json({ ok: true, body }, { status: 201 });
+};
+```
+
+`ctx` (the `Context` from `@wrnexus/core`) has:
+`req: Request`, `url: URL`, `params: Record<string,string>` (dynamic route params, e.g. `/users/[id]` → `ctx.params.id`),
+`lang: string`, `t(key, params?)` (i18n), `cookies` (get/set), `session` (get/set). Auth: `getUser(ctx)` after `sessionAuth`/`logIn`.
+
+When an SSO forward-auth verifier needs the URL that originally reached the gateway, use
+`@wrnexus/helpers` instead of constructing it from untrusted headers:
+
+```ts
+import { redirectToLogin } from "@wrnexus/helpers";
+
+return redirectToLogin(ctx, "/login", {
+  allowedHosts: ["admin.localhost:3000", "reports.localhost:3000"],
+});
+```
+
+The package also exports `getOriginalRequestUrl`, `getOriginalRequestOrigin`,
+`getOriginalRequestPath`, and `getOriginalRequestMethod`. Always pass `allowedHosts` when
+using forwarded gateway URLs; the helper rejects untrusted redirect destinations.
+
+## Middleware & realtime
+
+```ts
+// app/middleware/logger.ts
+export default async function logger(ctx, next) {
+  console.log(ctx.req.method, ctx.url.pathname);
+  return next();               // return a Response WITHOUT calling next() to short-circuit
+}
+```
+
+```ts
+// app/realtime/chat.ts  → ws://host/realtime/chat
+import { defineRoom } from "@wrnexus/core";
+export default defineRoom({
+  onConnect(client) { client.send({ type: "system", text: "connected" }); },
+  onMessage(client, msg) { client.room.broadcast({ type: "message", data: msg }); },
+});
+```
+Client side: a page opts in with `data-room="chat"` (handled by the realtime runtime).
+
+## Config (`wrnexus.config.ts`)
+
+```ts
+import type { AppConfig } from "@wrnexus/styles";
+const config: AppConfig = {
+  seo: { title: "App", titleTemplate: "%s | App", description: "..." },
+  styles: { entry: "app/styles/global.css", process: async ({ entryPath, mode }) => /* Tailwind */ "" },
+  fonts: { sans: '"Inter", system-ui, sans-serif', google: [{ family: "Inter", weights: [400, 600] }] },
+  theme: { default: "dark", themes: { light: { "color-primary": "#2563eb" } } },
+  i18n: { default: "en", locales: ["en", "es"] },
+  db: { driver: "sqlite", url: "file:./dev.db" },
+  security: { cors: { enabled: true, origin: ["http://localhost:5173"] } },
+  // profiles: { production: { db: { driver: "postgres", url: process.env.DATABASE_URL } } },
+};
+export default config;
+```
+
+## Database (`@wrnexus/db`)
+
+```ts
+// app/db/schema.ts
+import { v, table } from "@wrnexus/db";
+export const users = table("users", {
+  id: v.id(),
+  name: v.string(),
+  email: v.string().unique(),
+  createdAt: v.timestamp(),
+});
+```
+- Queries: write `app/db/queries/*.sql` with `-- name: ListUsers :many` blocks; `wrnexus db generate` emits typed functions.
+- Access at runtime: `import { getDb } from "@wrnexus/db"; const rows = await ListUsers(getDb());`
+- Migrations in `app/db/migrations/`; run `wrnexus db migrate` (dev auto-migrates sqlite).
+
+## Validation (`@wrnexus/validation`)
+
+```ts
+// app/schemas/login.ts
+import { v } from "@wrnexus/validation";
+export default v.object({
+  email: v.string().email(),
+  password: v.string().min(8),
+});
+```
+In an API route: `import s from "../schemas/login"; import { parseBody } from "@wrnexus/validation"; const r = await parseBody(s, ctx.req);` → `r.ok ? r.value : r.response`.
+In a form: `<form data-schema="login" action="/api/login" method="post">` + `<span data-error="email"></span>` (client + server validation connected automatically).
+
+## AI / LLM (`@wrnexus/ai`)
+
+```ts
+// app/api/ai.ts
+import { createAI } from "@wrnexus/ai";
+const ai = createAI();                     // reads ANTHROPIC_API_KEY; default model claude-opus-4-8
+export const POST = async (ctx) => {
+  const { prompt } = await ctx.req.json();
+  return ai.streamResponse(prompt);        // or: return Response.json({ text: await ai.generate(prompt) })
+};
+```
+
+## CLI
+
+```
+wrnexus dev .                 # dev server + HMR
+wrnexus build .               # production build → dist/server.js
+bun dist/server.js            # run the production server (or npm start)
+wrnexus create <name>         # scaffold a new app
+wrnexus update --latest       # deps + syntax/config migrations + verification
+wrnexus generate page <Name>  # scaffold a page   (aliases: g p)
+wrnexus generate component <name> | api <path> | schema <name>
+wrnexus db migrate | rollback | status | new [--from-models] | generate | seed
+wrnexus eject <component>     # copy a WrNexus UI component's .wrn into app/components to customize
+```
+
+## When asked to "create a page/component/feature"
+
+1. Create the `.wrn` file under `app/pages/` (or `app/components/`) with a `page`/`component` block — or run `wrnexus generate page <Name>`.
+2. Put markup in `view { }`, interactive bits in `state` + `{expr}` + `@event`, reusable UI as components mounted via `data-component`.
+3. For data, add an `app/api/*.ts` route and `getDb()`; for forms, add an `app/schemas/*.ts` and `data-schema`.
+4. Style with Tailwind utility classes in the view, or theme tokens (`var(--wrn-*)`), or `style { }`.
+5. Never emit React/JSX, a manual router, or client-side island JS — the framework handles hydration.