import { normalizeWysiwygImageUrl, normalizeWysiwygLinkUrl } from "../src/components/wysiwygEditorUrls";

function assertEqual(actual: unknown, expected: unknown, message: string): void {
  if (actual !== expected) {
    throw new Error(`${message}: expected ${String(expected)}, received ${String(actual)}`);
  }
}

assertEqual(normalizeWysiwygLinkUrl("example.org/path"), "https://example.org/path", "domain links gain HTTPS");
assertEqual(normalizeWysiwygLinkUrl("person@example.org"), "mailto:person@example.org", "email addresses gain mailto");
assertEqual(normalizeWysiwygLinkUrl("#details"), "#details", "fragments remain unchanged");
assertEqual(normalizeWysiwygLinkUrl("/documents/12"), "/documents/12", "relative links remain unchanged");

assertEqual(normalizeWysiwygLinkUrl("javascript:alert(1)"), null, "script links are rejected");
assertEqual(normalizeWysiwygLinkUrl("data:text/html;base64,SGVsbG8="), null, "active data links are rejected");
assertEqual(normalizeWysiwygLinkUrl("https://example.org/a b"), null, "links with raw spaces are rejected");

assertEqual(normalizeWysiwygImageUrl("images.example.org/banner.png"), "https://images.example.org/banner.png", "image domains gain HTTPS");
assertEqual(normalizeWysiwygImageUrl("cid:campaign-banner"), "cid:campaign-banner", "CID images remain unchanged");
assertEqual(normalizeWysiwygImageUrl("data:image/png;base64,iVBORw0KGgo="), "data:image/png;base64,iVBORw0KGgo=", "raster data images are accepted");
assertEqual(normalizeWysiwygImageUrl("data:image/svg+xml;base64,PHN2Zz4="), null, "active SVG data images are rejected");
assertEqual(normalizeWysiwygImageUrl("javascript:alert(1)"), null, "script image sources are rejected");