import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import test from "node:test";
import { bindFactTablePrint } from "../src/lib/report-fact-table-print";

function setup() {
  const details = [{ open: false }, { open: true }, { open: false }];
  const outside = { open: false };
  const events = new EventTarget();
  const root = { querySelectorAll(selector: string) { assert.equal(selector, "details"); return details; } };
  const cleanup = bindFactTablePrint(root as unknown as HTMLElement, events);
  return { details, outside, events, cleanup };
}

test("fact table printing expands all report groups and restores mixed disclosure state", () => {
  const { details, outside, events, cleanup } = setup();
  assert.deepEqual(details.map(item => item.open), [false, true, false]);
  events.dispatchEvent(new Event("beforeprint"));
  assert.deepEqual(details.map(item => item.open), [true, true, true]);
  assert.equal(outside.open, false);
  events.dispatchEvent(new Event("afterprint"));
  assert.deepEqual(details.map(item => item.open), [false, true, false]);
  cleanup();
});

test("fact table printing preserves the first snapshot across repeated beforeprint events", () => {
  const { details, events, cleanup } = setup();
  events.dispatchEvent(new Event("beforeprint"));
  events.dispatchEvent(new Event("beforeprint"));
  events.dispatchEvent(new Event("afterprint"));
  assert.deepEqual(details.map(item => item.open), [false, true, false]);
  details[0].open = true;
  events.dispatchEvent(new Event("beforeprint"));
  events.dispatchEvent(new Event("afterprint"));
  assert.deepEqual(details.map(item => item.open), [true, true, false]);
  cleanup();
});

test("fact table print cleanup restores pending state and removes both event listeners", () => {
  const { details, events, cleanup } = setup();
  events.dispatchEvent(new Event("afterprint"));
  events.dispatchEvent(new Event("beforeprint"));
  cleanup();
  assert.deepEqual(details.map(item => item.open), [false, true, false]);
  events.dispatchEvent(new Event("beforeprint"));
  assert.deepEqual(details.map(item => item.open), [false, true, false]);
});

test("fact table print styles remove horizontal clipping and repeat table headers", () => {
  const css = readFileSync(new URL("../src/app/globals.css", import.meta.url), "utf8");
  const print = css.slice(css.indexOf("@media print"), css.indexOf("@theme inline"));
  assert.match(print, /\.personal-report-fact-table-scroll\s*\{[^}]*overflow: visible !important/);
  assert.match(print, /\.personal-report-fact-tables table\s*\{[^}]*table-layout: fixed/);
  assert.match(print, /\.personal-report-fact-tables thead\s*\{[^}]*display: table-header-group/);
});