scripts/edge-cdn-assets.ts

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import { CSS, JS, SVG } from "#shared/content-types.ts";
import { ASSETS, readAsset } from "#shared/images/wasm-assets.ts";
import type { AssetDef } from "./edge-bundle-modules.ts";
import { wasmFilename } from "./inline-jsquash-wasm.ts";
import type { StaticCdnAsset } from "./static-cdn.ts";

/** One schema drives embedded handlers, public paths, and CDN publication. */
export const ASSET_DEFS: AssetDef[] = [
  // robots.txt is not here: its body follows the site's public-site feature,
  // so the app's own settings-reading handler ships in the bundle instead.
  ["favicon.svg", "handleFavicon", SVG, ""],
  ["icons.svg", "handleIcons", SVG, "ICONS_PATH"],
  // The scanner worker precaches style.css and scanner.js same-origin, so
  // the edge handler must answer 200 with the content: the CDN twin's 302
  // makes the precache cross-origin, and an install without CORS headers
  // rejects.
  ["style.css", "handleStyleCss", CSS, "CSS_PATH"],
  ["admin.js", "handleAdminJs", JS, "JS_PATH", true],
  // The client loader derives these sibling URLs from admin.js.
  ["markdown-editor.js", "handleMarkdownEditorJs", JS, "", true],
  ["logistics-map.js", "handleLogisticsMapJs", JS, "", true],
  ["logistics-map.css", "handleLogisticsMapCss", CSS, "", true],
  ["scanner.js", "handleScannerJs", JS, "SCANNER_JS_PATH"],
  // The scanner page registers this worker same-origin, so it never ships to
  // the CDN origin: a service worker cannot register across origins.
  ["scanner-sw.js", "handleScannerSwJs", JS, "", false, true],
  [
    "iframe-resizer-parent.js",
    "handleIframeResizerParentJs",
    JS,
    "IFRAME_RESIZER_PARENT_JS_PATH",
  ],
  [
    "iframe-resizer-child.js",
    "handleIframeResizerChildJs",
    JS,
    "IFRAME_RESIZER_CHILD_JS_PATH",
    true,
  ],
  ["embed.js", "handleEmbedJs", JS, "EMBED_JS_PATH"],
  ["contact.js", "handleContactJs", JS, "CONTACT_JS_PATH", true],
];

export const CDN_ASSET_DEFS: AssetDef[] = ASSET_DEFS.filter(
  ([, , , , publishToCdn]) => publishToCdn,
);

export const buildCdnAssets = (
  staticAssets: Record<string, string>,
): StaticCdnAsset[] => [
  ...CDN_ASSET_DEFS.map(([filename, , contentType]) => {
    const content = staticAssets[filename];
    if (content === undefined) {
      throw new Error(`Missing built static asset ${filename}`);
    }
    return {
      bytes: new TextEncoder().encode(content),
      contentType,
      filename,
    };
  }),
  ...ASSETS.map((asset) => ({
    bytes: readAsset(asset),
    contentType: "application/wasm",
    filename: wasmFilename(asset),
  })),
];