import { describe, expect, it, vi } from "vitest";
import { render, screen } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { ColonyTakeoverSection } from "./colony-takeover-section";
import { initialInspectionValues } from "@/app/(app)/inspections/new/inspection-form-values";

const colony = { occupiedFrames: 6, broodStatus: "AVERAGE", feedStatus: "GOOD" } as const;

function values(overrides = {}) {
  return { ...initialInspectionValues("colony-1"), ...overrides };
}

function renderSection(props: Partial<React.ComponentProps<typeof ColonyTakeoverSection>> = {}) {
  const onChange = vi.fn();
  render(
    <ColonyTakeoverSection
      colony={colony}
      values={values({ colonyStrength: "9", broodPattern: 4, feedStatus: "WEAK" })}
      selected={["occupiedFrames", "broodStatus", "feedStatus"]}
      onChange={onChange}
      canUpdateColony
      {...props}
    />,
  );
  return onChange;
}

describe("ColonyTakeoverSection", () => {
  it("shows each filled field as „bisher → neu“ with a checked box", () => {
    renderSection();

    expect(screen.getByRole("checkbox", { name: "Besetzte Waben: 6 → 9" })).toBeChecked();
    expect(screen.getByRole("checkbox", { name: "Brut: Mittel → Gut" })).toBeChecked();
    expect(screen.getByRole("checkbox", { name: "Futter: Ausreichend → Niedrig" })).toBeChecked();
  });

  it("lists only fields filled in this inspection", () => {
    renderSection({ values: values({ feedStatus: "CRITICAL" }), selected: ["feedStatus"] });

    expect(screen.getAllByRole("checkbox")).toHaveLength(1);
    expect(screen.getByRole("checkbox", { name: "Futter: Ausreichend → Kritisch" })).toBeChecked();
  });

  it("says „noch nicht erfasst“ for a colony card without a value", () => {
    renderSection({
      colony: { occupiedFrames: null, broodStatus: null, feedStatus: null },
      values: values({ feedStatus: "WEAK" }),
      selected: [],
    });

    expect(
      screen.getByRole("checkbox", { name: "Futter: noch nicht erfasst → Niedrig" }),
    ).not.toBeChecked();
  });

  it("reports the new selection when a box is toggled", async () => {
    const onChange = renderSection();

    await userEvent.click(screen.getByRole("checkbox", { name: "Brut: Mittel → Gut" }));

    expect(onChange).toHaveBeenCalledWith(["occupiedFrames", "feedStatus"]);
  });

  it("adds a box back in the fixed field order", async () => {
    const onChange = renderSection({ selected: ["feedStatus"] });

    await userEvent.click(screen.getByRole("checkbox", { name: "Besetzte Waben: 6 → 9" }));

    expect(onChange).toHaveBeenCalledWith(["occupiedFrames", "feedStatus"]);
  });

  it("announces how many values are taken over", () => {
    renderSection({ selected: ["feedStatus"] });

    expect(screen.getByRole("status")).toHaveTextContent("1 Wert wird auf die Volkskarte übernommen.");
  });

  it("is hidden without colonies:update", () => {
    renderSection({ canUpdateColony: false });

    expect(screen.queryByRole("group", { name: /Volkskarte/ })).not.toBeInTheDocument();
    expect(screen.queryByRole("checkbox")).not.toBeInTheDocument();
  });

  it("is hidden when nothing was filled in, but keeps its status region mounted", () => {
    renderSection({ values: values(), selected: [] });

    expect(screen.queryByRole("group", { name: /Volkskarte/ })).not.toBeInTheDocument();
    expect(screen.getByRole("status")).toBeInTheDocument();
  });

  it("says „bisher unbekannt“ when the card values are not known (cache empty)", () => {
    renderSection({ colony: null, selected: [] });

    expect(screen.getByRole("checkbox", { name: "Futter: bisher unbekannt → Niedrig" })).toBeInTheDocument();
    expect(screen.getByRole("checkbox", { name: "Besetzte Waben: bisher unbekannt → 9" })).toBeInTheDocument();
  });

  it("can be operated with Tab and Space", async () => {
    const onChange = renderSection();

    await userEvent.tab();
    expect(screen.getByRole("checkbox", { name: "Besetzte Waben: 6 → 9" })).toHaveFocus();
    await userEvent.keyboard(" ");

    expect(onChange).toHaveBeenCalledWith(["broodStatus", "feedStatus"]);
  });
});