// HierarchyCheckModal — what the « Vérifier la hiérarchie » window shows (#393).
// No jsdom: react-dom/server renders in vitest's node environment. A closed
// CategoryCombobox renders its input only, without its portal (#429).
import { describe, it, expect, vi } from "vitest";
import { renderToStaticMarkup } from "react-dom/server";

vi.mock("react-i18next", async () => (await import("../../test/i18nMock")).i18nMock());

import HierarchyCheckModal from "./HierarchyCheckModal";
import type { CategoryTreeNode } from "../../shared/types";
import type { OrphanCategory } from "../../utils/categoryHierarchy";

const node = (id: number, parent_id: number | null, name: string, i18n_key: string | null = null): CategoryTreeNode => ({
  id,
  name,
  parent_id,
  color: null,
  icon: null,
  type: "expense",
  is_active: true,
  is_inputable: true,
  sort_order: id,
  keyword_count: 0,
  i18n_key,
  children: [],
});

// 1 is a root; 3 <-> 5 is a cycle; 20's parent is gone.
const CATEGORIES = [
  node(1, null, "Logement", "categoriesSeed.housing"),
  node(3, 5, "Épicerie"),
  node(5, 3, "Alimentation"),
  node(20, 99, "Cadeaux"),
];
const ORPHANS: OrphanCategory[] = [
  { id: 3, reason: "cycle" },
  { id: 20, reason: "missing_parent" },
];

const render = (props: { orphans: OrphanCategory[] | null; error?: string | null; isSaving?: boolean }) =>
  renderToStaticMarkup(
    <HierarchyCheckModal
      orphans={props.orphans}
      error={props.error ?? null}
      categories={CATEGORIES}
      isSaving={props.isSaving ?? false}
      onReattach={vi.fn()}
      onClose={vi.fn()}
    />,
  );

const comboboxes = (html: string) => html.match(/<input [^>]*role="combobox"[^>]*>/g) ?? [];

describe("HierarchyCheckModal (#393)", () => {
  it("is a modal dialog named after the button, with its explanation and a close button", () => {
    const html = render({ orphans: [] });
    expect(html).toContain('role="dialog"');
    expect(html).toContain('aria-modal="true"');
    expect(html).toContain('aria-label="t(categories.hierarchy.check)"');
    expect(html).toContain("t(categories.hierarchy.intro)");
    expect(html).toContain("t(common.close)</button>");
  });

  it("says the check runs while the orphans are not known", () => {
    const html = render({ orphans: null });
    expect(html).toContain("t(categories.hierarchy.checking)");
    expect(html).not.toContain("t(categories.hierarchy.none)");
    expect(comboboxes(html)).toHaveLength(0);
  });

  it("says « aucune » for a sound hierarchy, with no row", () => {
    const html = render({ orphans: [] });
    expect(html).toContain("t(categories.hierarchy.none)");
    expect(html).not.toContain("categories.hierarchy.count");
    expect(html).not.toContain("t(categories.hierarchy.reattach)");
  });

  it("counts the orphans, and gives each row its name, its reason, a new parent and « Rattacher »", () => {
    const html = render({ orphans: ORPHANS });
    expect(html).toContain("t(categories.hierarchy.count[count=2])");
    expect(html).toContain(">Épicerie</p>");
    expect(html).toContain(">Cadeaux</p>");
    expect(html).toContain("t(categories.hierarchy.reasons.cycle)");
    expect(html).toContain("t(categories.hierarchy.reasons.missing_parent)");
    expect(html.split("t(categories.hierarchy.reattach)</button>")).toHaveLength(3);
    const inputs = comboboxes(html);
    expect(inputs).toHaveLength(2);
    expect(inputs[0]).toContain('aria-label="t(categories.hierarchy.newParentFor[name=Épicerie])"');
    expect(inputs[1]).toContain('aria-label="t(categories.hierarchy.newParentFor[name=Cadeaux])"');
  });

  it("preselects the root on every row", () => {
    for (const input of comboboxes(render({ orphans: ORPHANS }))) {
      expect(input).toContain('value="t(categories.hierarchy.root)"');
    }
  });

  it("names a seed category in the app's language", () => {
    const html = render({ orphans: [{ id: 1, reason: "inactive_parent" }] });
    expect(html).toContain(">t(categoriesSeed.housing[defaultValue=Logement])</p>");
    expect(html).toContain("t(categories.hierarchy.reasons.inactive_parent)");
  });

  it("shows the translated error above the list, as an alert", () => {
    const html = render({ orphans: ORPHANS, error: "Ce parent a des transactions" });
    expect(html).toContain('role="alert"');
    expect(html.indexOf("Ce parent a des transactions")).toBeLessThan(html.indexOf("categories.hierarchy.count"));
  });

  it("shows a failed check alone, without the « checking » line", () => {
    const html = render({ orphans: null, error: "database is locked" });
    expect(html).toContain("database is locked");
    expect(html).not.toContain("t(categories.hierarchy.checking)");
  });

  it("disables « Rattacher » while a reattachment runs", () => {
    const html = render({ orphans: ORPHANS, isSaving: true });
    const buttons = html.match(/<button[^>]*>t\(categories\.hierarchy\.reattach\)<\/button>/g) ?? [];
    expect(buttons).toHaveLength(2);
    for (const button of buttons) expect(button).toContain('disabled=""');
    expect(render({ orphans: ORPHANS })).not.toContain('disabled=""');
  });
});