import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import test from "node:test";
import { transformSync } from "esbuild";

const source = readFileSync(new URL("../../../govoplan-docs/webui/src/features/docs/docsDiscovery.ts", import.meta.url), "utf8");
const { code } = transformSync(source, { loader: "ts", format: "esm" });
const { documentationTags, documentationTagOptions, matchesDocumentationTopic, qualifyTreeOccurrences, selectedTreeOccurrence, ancestorOccurrenceIds } = await import(`data:text/javascript;base64,${Buffer.from(code).toString("base64")}`);
const context = { layers: { configured: { modules: [{ id: "services", name: "Leistungen" }, { id: "forms", name: "Formulare" }] } } };
const topic = { id: "topic", source_module_id: "forms", related_modules: ["hidden"], area_module_ids: ["forms", "services"], title: "Application", summary: "", body: "Fill a form", metadata: { tags: ["Entwürfe", "Application", "application", "", 22] } };

test("area and contributed tags are searchable without leaking unrelated hidden modules", () => {
  assert.deepEqual(documentationTags(topic, context).map(tag => tag.label), ["Formulare", "Leistungen", "Entwürfe", "Application"]);
  assert.equal(matchesDocumentationTopic(topic, context, "leistungen entwurfe", null), true);
  assert.equal(matchesDocumentationTopic(topic, context, "hidden", null), false);
  assert.equal(matchesDocumentationTopic(topic, context, "fill application", null), true);
  assert.equal(matchesDocumentationTopic(topic, context, "wrong application", null), false);
});
test("multi-select filter keeps all, none and OR selections distinct", () => {
  assert.equal(matchesDocumentationTopic(topic, context, "", null), true);
  assert.equal(matchesDocumentationTopic(topic, context, "", []), false);
  assert.equal(matchesDocumentationTopic(topic, context, "", ["area:services", "tag:missing"]), true);
  assert.equal(matchesDocumentationTopic(topic, context, "", ["tag:missing"]), false);
  assert.equal(documentationTagOptions([topic, topic], context).length, 4);
});
test("repeated topics have independent occurrence identity, selection and ancestors", () => {
  const leaf = { id: "topic:repeat", page: { id: "repeat" }, children: [{ id: "topic:child", page: { id: "child" }, children: [] }] };
  const tree = qualifyTreeOccurrences([{ id: "tasks", page: { id: "tasks" }, children: [leaf] }, { id: "services", page: { id: "services" }, children: [leaf] }]);
  const first = tree[0].children[0], second = tree[1].children[0];
  assert.notEqual(first.id, second.id);
  assert.notEqual(first.children[0].id, second.children[0].id);
  assert.equal(selectedTreeOccurrence(tree, "repeat", second.id), second);
  assert.deepEqual(ancestorOccurrenceIds(tree, second.children[0].id), [tree[1].id, second.id]);
  assert.equal(selectedTreeOccurrence(tree, "repeat", null), first);
  assert.equal(selectedTreeOccurrence(tree, "repeat", first.children[0].id), first);
});