feat: content store con seed, cache e fallback

src/data/content-seed.ts

@@ -0,0 +1,24 @@
+import type { StyleGroup } from '../lib/style-presets';
+import { site } from './site';
+
+export type ContentType = 'text' | 'html' | 'image';
+export interface SeedEntry { tag: string; type: ContentType; value: string; styleOptions?: StyleGroup[] }
+
+const T = (tag: string, value: string, styleOptions: StyleGroup[] = ['size', 'color', 'weight', 'style']): SeedEntry =>
+  ({ tag, type: 'text', value, styleOptions });
+const H = (tag: string, value: string, styleOptions: StyleGroup[] = ['size', 'color']): SeedEntry =>
+  ({ tag, type: 'html', value, styleOptions });
+const I = (tag: string): SeedEntry => ({ tag, type: 'image', value: '' });
+
+export const contentSeed: SeedEntry[] = [
+  // --- Globali (site.ts) ---
+  T('global.contact.phone', site.phone, []),
+  T('global.contact.email', site.email, []),
+  T('global.contact.address', site.address, []),
+  T('global.contact.city-line', site.cityLine, []),
+  T('global.hours.1', site.hours[0], []),
+  T('global.hours.2', site.hours[1], []),
+  // I task di estrazione aggiungono qui le entry di header/footer/pagine/data file.
+];
+
+export const seedByTag = new Map(contentSeed.map((e) => [e.tag, e]));

src/lib/content.ts

@@ -0,0 +1,55 @@
+import type Database from 'better-sqlite3';
+import { getDb } from './db';
+import { contentSeed, seedByTag, type ContentType } from '../data/content-seed';
+import { stylesToClasses } from './style-presets';
+
+interface Entry { value: string; type: ContentType; styles: Record<string, string> }
+
+export function syncSeed(db: Database.Database): void {
+  const ins = db.prepare('INSERT OR IGNORE INTO content_blocks (tag, type, value) VALUES (?, ?, ?)');
+  const tx = db.transaction(() => { for (const e of contentSeed) ins.run(e.tag, e.type, e.value); });
+  tx();
+}
+
+export function makeContentStore(dbGetter: () => Database.Database) {
+  let cache: Map<string, Entry> | null = null;
+
+  const load = (): Map<string, Entry> => {
+    if (cache) return cache;
+    const rows = dbGetter().prepare('SELECT tag, type, value, styles FROM content_blocks').all() as
+      { tag: string; type: ContentType; value: string; styles: string }[];
+    cache = new Map(rows.map((r) => {
+      let styles: Record<string, string> = {};
+      try { styles = JSON.parse(r.styles); } catch { /* styles corrotto: si ignora */ }
+      if (typeof styles !== 'object' || styles === null) styles = {};
+      return [r.tag, { value: r.value, type: r.type, styles }];
+    }));
+    return cache;
+  };
+
+  return {
+    resolve(tag: string): { value: string; type: ContentType; classes: string } {
+      const hit = load().get(tag);
+      if (hit) return { value: hit.value, type: hit.type, classes: stylesToClasses(hit.styles) };
+      const seed = seedByTag.get(tag);
+      if (seed) return { value: seed.value, type: seed.type, classes: '' };
+      console.warn(`[content] tag sconosciuto: ${tag}`);
+      return { value: '', type: 'text', classes: '' };
+    },
+    invalidate(): void { cache = null; },
+  };
+}
+
+const store = makeContentStore(getDb);
+
+export const resolveContent = (tag: string) => store.resolve(tag);
+export const t = (tag: string): string => store.resolve(tag).value;
+export const invalidateContentCache = (): void => store.invalidate();
+
+export function getImageOverride(tag: string): string | null {
+  const r = store.resolve(tag);
+  return r.type === 'image' && r.value ? `/uploads/${r.value}` : null;
+}
+
+export const contentImageUrl = (tag: string, fallback: string): string =>
+  getImageOverride(tag) ?? fallback;

src/lib/db.ts

@@ -1,6 +1,7 @@
 import Database from 'better-sqlite3';
 import { mkdirSync } from 'node:fs';
 import { dirname } from 'node:path';
+import { contentSeed } from '../data/content-seed';
 
 const SCHEMA = `
 CREATE TABLE IF NOT EXISTS posts (
@@ -49,6 +50,9 @@ export function createDb(path?: string): Database.Database {
   if (!userCols.some((c) => c.name === 'role')) {
     db.exec(`ALTER TABLE users ADD COLUMN role TEXT NOT NULL DEFAULT 'admin'`);
   }
+  const ins = db.prepare('INSERT OR IGNORE INTO content_blocks (tag, type, value) VALUES (?, ?, ?)');
+  const syncTx = db.transaction(() => { for (const e of contentSeed) ins.run(e.tag, e.type, e.value); });
+  syncTx();
   return db;
 }
 

src/lib/sanitize.ts

@@ -9,3 +9,12 @@ export function sanitizeHtml(html: string): string {
     allowProtocolRelative: false,
   });
 }
+
+export function sanitizeInline(html: string): string {
+  return sanitize(html, {
+    allowedTags: ['strong', 'em', 'u', 's', 'br', 'a'],
+    allowedAttributes: { a: ['href', 'rel', 'target'] },
+    allowedSchemes: ['https', 'http', 'mailto'],
+    allowProtocolRelative: false,
+  });
+}

tests/content.test.ts

@@ -0,0 +1,61 @@
+import { describe, it, expect, beforeEach } from 'vitest';
+import type Database from 'better-sqlite3';
+import { createDb } from '../src/lib/db';
+import { contentSeed } from '../src/data/content-seed';
+import { makeContentStore, syncSeed } from '../src/lib/content';
+
+let db: Database.Database;
+beforeEach(() => { db = createDb(':memory:'); });
+
+describe('seed', () => {
+  it('tag univoci, validi e valori non vuoti', () => {
+    const tags = contentSeed.map((e) => e.tag);
+    expect(new Set(tags).size).toBe(tags.length);
+    for (const e of contentSeed) {
+      expect(e.tag).toMatch(/^[a-z0-9-]+(\.[a-z0-9-]+)+$/);
+      if (e.type !== 'image') expect(e.value.length).toBeGreaterThan(0);
+    }
+  });
+
+  it('createDb sincronizza il seed senza sovrascrivere modifiche', () => {
+    const n = (db.prepare('SELECT COUNT(*) AS n FROM content_blocks').get() as { n: number }).n;
+    expect(n).toBe(contentSeed.length);
+    db.prepare(`UPDATE content_blocks SET value = 'MODIFICATO' WHERE tag = ?`).run(contentSeed[0].tag);
+    // ri-sync (come a un nuovo avvio) non deve toccare la modifica
+    syncSeed(db);
+    const v = db.prepare('SELECT value FROM content_blocks WHERE tag = ?').get(contentSeed[0].tag) as { value: string };
+    expect(v.value).toBe('MODIFICATO');
+  });
+});
+
+describe('content store', () => {
+  it('legge dal DB con classi preset e cache invalidabile', () => {
+    const store = makeContentStore(() => db);
+    const tag = contentSeed[0].tag;
+    db.prepare(`UPDATE content_blocks SET value = 'Nuovo', styles = '{"size":"l"}' WHERE tag = ?`).run(tag);
+    store.invalidate();
+    const r = store.resolve(tag);
+    expect(r.value).toBe('Nuovo');
+    expect(r.classes).toBe('cs-size-l');
+    // senza invalidate la cache resta
+    db.prepare(`UPDATE content_blocks SET value = 'Altro' WHERE tag = ?`).run(tag);
+    expect(store.resolve(tag).value).toBe('Nuovo');
+    store.invalidate();
+    expect(store.resolve(tag).value).toBe('Altro');
+  });
+
+  it('fallback: tag assente nel DB usa il seed, sconosciuto stringa vuota', () => {
+    const store = makeContentStore(() => db);
+    db.prepare('DELETE FROM content_blocks WHERE tag = ?').run(contentSeed[0].tag);
+    store.invalidate();
+    expect(store.resolve(contentSeed[0].tag).value).toBe(contentSeed[0].value);
+    expect(store.resolve('tag.inesistente').value).toBe('');
+  });
+
+  it('styles corrotto nel DB viene ignorato', () => {
+    const store = makeContentStore(() => db);
+    db.prepare(`UPDATE content_blocks SET styles = 'non-json' WHERE tag = ?`).run(contentSeed[0].tag);
+    store.invalidate();
+    expect(store.resolve(contentSeed[0].tag).classes).toBe('');
+  });
+});