Hosting signup: customize step before payment

apps/self-hosted/hosting/api/src/appearance.ts

@@ -0,0 +1,28 @@
+/**
+ * Appearance constants shared with the blog SPA, next to the style template
+ * roster (style-templates.ts) and under the same rules: dependency-free,
+ * because the SPA bundles these, and living here because the API image builds
+ * from hosting/api alone and could not import in the other direction.
+ *
+ * The SPA's font preset definitions (src/core/theme-appearance.ts) carry the
+ * actual font stacks; the API needs only the closed key set for validating
+ * signup overrides. A lockstep test on the SPA side
+ * (src/styles/style-template-roster.test.ts) keeps the two agreeing.
+ */
+export const FONT_PRESET_KEYS = Object.freeze([
+  'classic',
+  'editorial',
+  'modern',
+  'technical',
+  'system',
+] as const);
+
+export type FontPresetKey = (typeof FONT_PRESET_KEYS)[number];
+
+/**
+ * `#rgb` or `#rrggbb`, the same shapes the SPA's parseHexColor accepts. The
+ * signup path validates and rejects; the Configuration Editor's full-document
+ * path stays lenient on purpose, because the SPA already treats an
+ * unparseable accent as "the template's own accent stands".
+ */
+export const ACCENT_HEX_PATTERN = /^#(?:[0-9a-fA-F]{3}|[0-9a-fA-F]{6})$/;

apps/self-hosted/hosting/api/src/index.ts

@@ -9,6 +9,7 @@ import { cors } from 'hono/cors';
 import { logger } from 'hono/logger';
 import { secureHeaders } from 'hono/secure-headers';
 import { tenantRoutes } from './routes/tenants';
+import { templateRoutes } from './routes/templates';
 import { domainRoutes } from './routes/domains';
 import { paymentRoutes } from './routes/payments';
 import { authRoutes } from './routes/auth';
@@ -68,6 +69,7 @@ app.use('/v1/tenants/*', generalLimit);
 app.use('/v1/tenants', generalLimit);
 app.use('/v1/domains/*', generalLimit);
 app.use('/v1/payments/*', generalLimit);
+app.use('/v1/templates', generalLimit);
 app.use('/v1/auth/*', generalLimit);
 app.use('/v1/auth/*', authLimit);
 
@@ -85,6 +87,7 @@ app.use('/v1/internal/*', internalLimit);
 
 // API Routes
 app.route('/v1/tenants', tenantRoutes);
+app.route('/v1/templates', templateRoutes);
 app.route('/v1/domains', domainRoutes);
 app.route('/v1/payments', paymentRoutes);
 app.route('/v1/auth', authRoutes);

apps/self-hosted/hosting/api/src/routes/templates.test.ts

@@ -0,0 +1,35 @@
+import { describe, expect, it } from 'vitest';
+import { STYLE_TEMPLATES } from '../style-templates';
+import { templateRoutes } from './templates';
+
+describe('GET /v1/templates', () => {
+  it('serves one card per roster entry with display fields and a single default', async () => {
+    const res = await templateRoutes.request('http://localhost/');
+    expect(res.status).toBe(200);
+    expect(res.headers.get('cache-control')).toContain('max-age');
+
+    const body = (await res.json()) as {
+      templates: Array<{
+        id: string;
+        name: string;
+        tagline: string;
+        isDefault: boolean;
+        colors: Record<string, string>;
+        headingStyle: string;
+      }>;
+    };
+
+    expect(body.templates.map((t) => t.id).sort()).toEqual(
+      [...STYLE_TEMPLATES].sort(),
+    );
+    expect(body.templates.filter((t) => t.isDefault)).toHaveLength(1);
+    for (const t of body.templates) {
+      expect(t.name.length).toBeGreaterThan(0);
+      expect(t.tagline.length).toBeGreaterThan(0);
+      for (const key of ['background', 'surface', 'accent', 'text']) {
+        expect(t.colors[key], `${t.id} colors.${key}`).toBeTruthy();
+      }
+      expect(['serif', 'sans', 'mono']).toContain(t.headingStyle);
+    }
+  });
+});

apps/self-hosted/hosting/api/src/routes/templates.ts

@@ -0,0 +1,14 @@
+import { Hono } from 'hono';
+import { templateCatalog } from '../style-template-display';
+
+/**
+ * Public template catalog for the signup UI's picker. Static data straight
+ * from the roster and its display map, so the signup can never carry its own
+ * copy of the template list. Cacheable: it changes only on deploy.
+ */
+export const templateRoutes = new Hono();
+
+templateRoutes.get('/', (c) => {
+  c.header('Cache-Control', 'public, max-age=300');
+  return c.json({ templates: templateCatalog() });
+});

apps/self-hosted/hosting/api/src/routes/tenant-create-refresh.test.ts

@@ -0,0 +1,122 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest';
+
+const state = vi.hoisted(() => ({
+  existing: null as any,
+  created: [] as any[],
+}));
+
+vi.mock('../db/client', () => ({
+  db: {
+    // The audit logger chains .catch on these, so they must return promises.
+    query: vi.fn(async () => ({ rows: [] })),
+    queryOne: vi.fn(async () => null),
+  },
+}));
+vi.mock('../middleware/auth', () => ({
+  authMiddleware: async (_c: unknown, next: () => Promise<void>) => next(),
+  adminMiddleware: async (_c: unknown, next: () => Promise<void>) => next(),
+}));
+vi.mock('../middleware/rate-limit', () => ({
+  rateLimit: () => async (_c: unknown, next: () => Promise<void>) => next(),
+}));
+vi.mock('../middleware/payment-target-lock', () => ({
+  withPaymentTargetLock: async (
+    _c: unknown,
+    next: () => Promise<void>,
+  ) => next(),
+}));
+vi.mock('../services/tenant-service', async (importOriginal) => {
+  const actual = await importOriginal<any>();
+  return {
+    ...actual,
+    isReregisterableAbandoned: () => false,
+    TenantService: {
+      ...actual.TenantService,
+      getByUsername: async () => state.existing,
+      isListenerCaughtUp: async () => true,
+      verifyHiveAccount: async () => true,
+      verifyCommunityControlledBy: async () => true,
+      create: async (username: string, owner: string, config: any) => {
+        state.created.push({ username, owner, config });
+        return {
+          username,
+          owner,
+          subscriptionStatus: 'inactive',
+          subscriptionPlan: 'standard',
+        };
+      },
+    },
+  };
+});
+
+const { tenantRoutes } = await import('./tenants');
+
+function post(body: unknown) {
+  return tenantRoutes.request('http://localhost/', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify(body),
+  });
+}
+
+describe('POST /v1/tenants appearance validation', () => {
+  beforeEach(() => {
+    state.existing = null;
+    state.created = [];
+  });
+
+  it('rejects an accent that is not a hex color', async () => {
+    const res = await post({ username: 'alice', config: { accent: 'red' } });
+    expect(res.status).toBe(400);
+    expect(state.created).toHaveLength(0);
+  });
+
+  it('rejects an unknown font preset', async () => {
+    const res = await post({ username: 'alice', config: { fontPreset: 'comic-sans' } });
+    expect(res.status).toBe(400);
+    expect(state.created).toHaveLength(0);
+  });
+
+  it('accepts valid appearance values', async () => {
+    const res = await post({
+      username: 'alice',
+      config: { styleTemplate: 'magazine', accent: '#ff6600', fontPreset: 'classic' },
+    });
+    expect(res.status).toBe(201);
+    expect(state.created[0].config.accent).toBe('#ff6600');
+  });
+});
+
+/**
+ * The customize step promises that the look on screen is the look that
+ * activates: a same-owner unpaid reservation is refreshed by re-creation
+ * (the latest submission wins), while anyone else's reservation and any
+ * live tenant stay 409.
+ */
+describe('POST /v1/tenants refreshes a same-owner unpaid reservation', () => {
+  beforeEach(() => {
+    state.existing = null;
+    state.created = [];
+  });
+
+  it('lets the owner re-submit an inactive reservation with a new look', async () => {
+    state.existing = { username: 'alice', owner: 'alice', subscriptionStatus: 'inactive' };
+    const res = await post({ username: 'alice', config: { styleTemplate: 'developer' } });
+    expect(res.status).toBe(201);
+    expect(state.created[0].config.styleTemplate).toBe('developer');
+  });
+
+  it("still refuses someone else's inactive reservation", async () => {
+    state.existing = { username: 'alice', owner: 'mallory', subscriptionStatus: 'inactive' };
+    const res = await post({ username: 'alice', config: { styleTemplate: 'developer' } });
+    expect(res.status).toBe(409);
+    expect(state.created).toHaveLength(0);
+  });
+
+  it('still refuses a live tenant', async () => {
+    state.existing = { username: 'alice', owner: 'alice', subscriptionStatus: 'active' };
+    const res = await post({ username: 'alice', config: {} });
+    expect(res.status).toBe(409);
+    expect(state.created).toHaveLength(0);
+  });
+});

apps/self-hosted/hosting/api/src/routes/tenants.ts

@@ -6,6 +6,8 @@ import { Hono } from 'hono';
 import { z } from 'zod';
 import { zValidator } from '@hono/zod-validator';
 import { STYLE_TEMPLATES } from '../style-templates';
+import { ACCENT_HEX_PATTERN, FONT_PRESET_KEYS } from '../appearance';
+import { rateLimit } from '../middleware/rate-limit';
 import { db } from '../db/client';
 import {
   TenantService,
@@ -33,6 +35,8 @@ const createTenantSchema = z.object({
   config: z.object({
     theme: z.enum(['light', 'dark', 'system']).optional(),
     styleTemplate: z.enum(STYLE_TEMPLATES).optional(),
+    accent: z.string().regex(ACCENT_HEX_PATTERN, 'accent must be #rgb or #rrggbb').optional(),
+    fontPreset: z.enum(FONT_PRESET_KEYS).optional(),
     type: z.enum(['blog', 'community']).optional(),
     communityId: z.string().optional(),
     title: z.string().max(100).optional(),
@@ -59,6 +63,8 @@ const fullConfigDocSchema = z.object({
 const flatConfigUpdateSchema = z.object({
   theme: z.enum(['light', 'dark', 'system']).optional(),
   styleTemplate: z.enum(STYLE_TEMPLATES).optional(),
+  accent: z.string().regex(ACCENT_HEX_PATTERN, 'accent must be #rgb or #rrggbb').optional(),
+  fontPreset: z.enum(FONT_PRESET_KEYS).optional(),
   title: z.string().max(100).optional(),
   description: z.string().max(500).optional(),
   listType: z.enum(['list', 'grid']).optional(),
@@ -210,8 +216,15 @@ export async function resolveAndValidateTenant(
   return { ok: true, owner };
 }
 
+// Creation is unauthenticated by design (a personal blog's owner IS the requested
+// account), so the same-owner refresh below is only as strong as this throttle:
+// a tight per-IP budget keeps "loop the POST to rewrite someone's unpaid
+// reservation" to a crawl while never blocking a human signing up.
+const createLimit = rateLimit({ name: 'tenant-create', limit: 10, windowMs: 60_000 });
+
 tenantRoutes.post(
   '/',
+  createLimit,
   zValidator('json', createTenantSchema),
   // Use the same target reservation as paid /subscribe. Otherwise this unpaid create can insert
   // after the paid request's availability check but before its post-settlement tenant insert.
@@ -224,8 +237,19 @@ tenantRoutes.post(
     // revives it below. Within the quarantine — or while the payment listener isn't confirmed
     // caught up to head (so a pending on-chain payment for it may be unprocessed) — it is still
     // treated as taken so an in-flight payment for it isn't overwritten.
+    //
+    // A same-owner 'inactive' reservation is NOT taken: that is the customize step re-submitting
+    // before any payment, and the latest submitted look must win (create() refreshes the stored
+    // config). The owner comparison happens after validation below, which is what enforces the
+    // ownership rules (a community's declared owner is checked on-chain; a personal blog's owner
+    // is the account itself, which is the same trust model first creation has always had).
     const existing = await TenantService.getByUsername(body.username);
-    if (existing && !(isReregisterableAbandoned(existing) && (await TenantService.isListenerCaughtUp()))) {
+    const sameNameInactive = !!existing && existing.subscriptionStatus === 'inactive';
+    if (
+      existing &&
+      !sameNameInactive &&
+      !(isReregisterableAbandoned(existing) && (await TenantService.isListenerCaughtUp()))
+    ) {
       return c.json({ error: 'Username already registered' }, 409);
     }
 
@@ -236,6 +260,11 @@ tenantRoutes.post(
     }
     const { owner } = validation;
 
+    // An inactive reservation may only be refreshed by the owner it was reserved for.
+    if (sameNameInactive && existing!.owner !== owner) {
+      return c.json({ error: 'Username already registered' }, 409);
+    }
+
     // Create tenant (inactive until payment). The served config file is NOT written here:
     // nginx serves any file that exists with no subscription check, so writing it now would
     // put an unpaid blog live forever. The file is generated only on activation (payment

apps/self-hosted/hosting/api/src/services/flat-overrides.test.ts

@@ -0,0 +1,50 @@
+import { describe, expect, it } from 'vitest';
+import { TenantService } from './tenant-service';
+
+// Pure mapping: no DB, no RPC.
+
+describe('normalizeFlatOverrides appearance keys', () => {
+  it('maps accent and fontPreset under general.styles, the paths the editor writes', () => {
+    const normalized = TenantService.normalizeFlatOverrides({
+      styleTemplate: 'magazine',
+      accent: '#ff6600',
+      fontPreset: 'classic',
+    });
+
+    expect(normalized.configuration.general.styleTemplate).toBe('magazine');
+    expect(normalized.configuration.general.styles).toEqual({
+      accent: '#ff6600',
+      fontPreset: 'classic',
+    });
+  });
+
+  it('writes no styles object at all when neither knob was sent', () => {
+    const normalized = TenantService.normalizeFlatOverrides({
+      title: 'A blog',
+    });
+    // An empty object would still merge and could shadow a stored section.
+    expect(normalized.configuration.general.styles).toBeUndefined();
+  });
+
+  it('carries a single knob without inventing the other', () => {
+    const normalized = TenantService.normalizeFlatOverrides({
+      accent: '#0af',
+    });
+    expect(normalized.configuration.general.styles).toEqual({
+      accent: '#0af',
+    });
+  });
+
+  it('seeded config carries the signup appearance choices end to end', async () => {
+    const config = await TenantService.buildConfig(
+      'alice',
+      { styleTemplate: 'developer', accent: '#89b4fa', fontPreset: 'technical' },
+      'alice',
+    );
+    expect(config.configuration.general.styleTemplate).toBe('developer');
+    expect(config.configuration.general.styles.accent).toBe('#89b4fa');
+    expect(config.configuration.general.styles.fontPreset).toBe('technical');
+    // The seed's own defaults survive alongside.
+    expect(config.configuration.general.theme).toBe('system');
+  });
+});