import React from "react";
import { fireEvent, GlobalTestState, render } from "./test-utils";
import Excalidraw from "../packages/excalidraw/index";
import { queryByText } from "@testing-library/react";
import { GRID_SIZE } from "../constants";

const { h } = window;

describe("<Excalidraw/>", () => {
  describe("Test zenModeEnabled prop", () => {
    it('should show exit zen mode button when zen mode is set and zen mode option in context menu when zenModeEnabled is "undefined"', async () => {
      const { container } = await render(<Excalidraw />);
      expect(
        container.getElementsByClassName("disable-zen-mode--visible").length,
      ).toBe(0);
      expect(h.state.zenModeEnabled).toBe(false);

      fireEvent.contextMenu(GlobalTestState.canvas, {
        button: 2,
        clientX: 1,
        clientY: 1,
      });
      const contextMenu = document.querySelector(".context-menu");
      fireEvent.click(queryByText(contextMenu as HTMLElement, "Zen mode")!);
      expect(h.state.zenModeEnabled).toBe(true);
      expect(
        container.getElementsByClassName("disable-zen-mode--visible").length,
      ).toBe(1);
    });

    it("should not show exit zen mode button and zen mode option in context menu when zenModeEnabled is set", async () => {
      const { container } = await render(<Excalidraw zenModeEnabled={true} />);
      expect(
        container.getElementsByClassName("disable-zen-mode--visible").length,
      ).toBe(0);
      expect(h.state.zenModeEnabled).toBe(true);

      fireEvent.contextMenu(GlobalTestState.canvas, {
        button: 2,
        clientX: 1,
        clientY: 1,
      });
      const contextMenu = document.querySelector(".context-menu");
      expect(queryByText(contextMenu as HTMLElement, "Zen mode")).toBe(null);
      expect(h.state.zenModeEnabled).toBe(true);
      expect(
        container.getElementsByClassName("disable-zen-mode--visible").length,
      ).toBe(0);
    });
  });

  describe("Test gridModeEnabled prop", () => {
    it('should show grid mode in context menu when gridModeEnabled is "undefined"', async () => {
      const { container } = await render(<Excalidraw />);
      expect(h.state.gridSize).toBe(null);

      expect(
        container.getElementsByClassName("disable-zen-mode--visible").length,
      ).toBe(0);
      fireEvent.contextMenu(GlobalTestState.canvas, {
        button: 2,
        clientX: 1,
        clientY: 1,
      });
      const contextMenu = document.querySelector(".context-menu");
      fireEvent.click(queryByText(contextMenu as HTMLElement, "Show grid")!);
      expect(h.state.gridSize).toBe(GRID_SIZE);
    });

    it('should not show grid mode in context menu when gridModeEnabled is not "undefined"', async () => {
      const { container } = await render(
        <Excalidraw gridModeEnabled={false} />,
      );
      expect(h.state.gridSize).toBe(null);

      expect(
        container.getElementsByClassName("disable-zen-mode--visible").length,
      ).toBe(0);
      fireEvent.contextMenu(GlobalTestState.canvas, {
        button: 2,
        clientX: 1,
        clientY: 1,
      });
      const contextMenu = document.querySelector(".context-menu");
      expect(queryByText(contextMenu as HTMLElement, "Show grid")).toBe(null);
      expect(h.state.gridSize).toBe(null);
    });
  });
});