import test from "node:test";
import assert from "node:assert/strict";

import {
  applyImageWidthMarkup,
  cmapMentionTarget,
  escapeHtml,
  expandNamespacedMarkdownLinks,
  expandTodoMarkup,
  expandWikiMentions,
  extractCmapEmbeds,
  restoreCmapEmbeds
} from "../static/js/wiki/markdown.js";

test("Todo markup is escaped, numbered and left alone in fenced code", () => {
  const markdown = "todo(<script>)\n```\ntodo(no change)\n```\ntodo(second)";
  const expanded = expandTodoMarkup(markdown, "start", "Todo & note");
  assert.match(expanded, /#todo\/start\/1/);
  assert.match(expanded, /#todo\/start\/2/);
  assert.match(expanded, /Todo &amp; note/);
  assert.match(expanded, /&lt;script&gt;/);
  assert.match(expanded, /```\ntodo\(no change\)\n```/);
});

test("image options add width and alignment to rendered image tags", () => {
  assert.equal(
    applyImageWidthMarkup('<img src="x.png"> { width=40% center }'),
    '<img src="x.png" style="width: 40%" class="wiki-image-center">');
  assert.equal(
    applyImageWidthMarkup('<img class="existing" src="x.png"> { width=240 left float }'),
    '<img class="existing wiki-image-float-left" src="x.png" style="width: 240px">');
});

test("explicit namespaced links become internal routes outside code", () => {
  const markdown = "[Page](notes:roadmap)\n[CMap](cmap:architecture)\n```\n[Code](notes:keep)\n```";
  assert.equal(
    expandNamespacedMarkdownLinks(markdown),
    "[Page](#/notes%3Aroadmap)\n[CMap](#cmap/architecture)\n```\n[Code](notes:keep)\n```");
});

test("WikiWords use page and CMap catalogues without expanding protected text", () => {
  const pages = [
    { slug: "homeopathie", namespace: "", pageSlug: "homeopathie", title: "Homeopathie Wiki" }
  ];
  const conceptMaps = [{ slug: "architectuur", title: "Architectuur Kaart" }];
  const markdown = "HomeopathieWiki en cmap:ArchitectuurKaart, maar `NieuwePagina` niet.";
  assert.equal(
    expandWikiMentions(markdown, pages, [], conceptMaps),
    "[Homeopathie Wiki](#/homeopathie) en [Architectuur Kaart](#cmap/architectuur), maar `NieuwePagina` niet.");
});

test("an exclamation mark renders a WikiWord literally without becoming visible", () => {
  const pages = [
    { slug: "homeopathie", namespace: "", pageSlug: "homeopathie", title: "Homeopathie Wiki" }
  ];
  const conceptMaps = [{ slug: "architectuur", title: "Architectuur Kaart" }];
  const markdown = "!HomeopathieWiki en !NieuwePagina en !cmap:ArchitectuurKaart.";
  const expanded = expandWikiMentions(markdown, pages, [], conceptMaps);
  assert.equal(expanded,
    "&#72;omeopathieWiki en &#78;ieuwePagina en cmap:&#65;rchitectuurKaart.");
  assert.equal(expandWikiMentions(expanded, pages, [], conceptMaps), expanded);
});

test("the WikiWord escape remains literal in protected Markdown", () => {
  const markdown = "`!NieuwePagina` en [!NieuwePagina](https://example.com)";
  assert.equal(expandWikiMentions(markdown, [], [], []), markdown);
});

test("ambiguous CMap mentions are not resolved", () => {
  const conceptMaps = [
    { slug: "first", title: "Zelfde Kaart" },
    { slug: "second", title: "ZelfdeKaart" }
  ];
  assert.equal(cmapMentionTarget("ZelfdeKaart", conceptMaps), null);
});

test("CMap embeds survive Markdown rendering through escaped placeholders", () => {
  const extracted = extractCmapEmbeds("before\n{{cmap:architecture}}\n```\n{{cmap:code}}\n```");
  assert.equal(extracted.embeds.length, 1);
  assert.match(extracted.markdown, /RACKETWIKICMAPEMBED0TOKEN/);
  assert.match(extracted.markdown, /\{\{cmap:code\}\}/);
  assert.equal(
    restoreCmapEmbeds("<p>RACKETWIKICMAPEMBED0TOKEN</p>", extracted.embeds, "Loading…"),
    '<section class="rw-cmap-embed" data-cmap-reference="architecture"><div class="rw-cmap-embed-loading">Loading…</div></section>');
  assert.equal(escapeHtml('<a href="x">&'), "&lt;a href=&quot;x&quot;&gt;&amp;");
});