import { describe, it, expect, vi } from "vitest";
import { render, screen, fireEvent } from "@testing-library/react";
import { InlineCreateCard } from "../InlineCreateCard";

// Mock lucide-react
vi.mock("lucide-react", () => ({
  Link: () => null,
}));

// Mock the api module
vi.mock("../../api", () => ({
  uploadAttachment: vi.fn(),
}));

function renderCard() {
  const props = {
    tasks: [],
    onSubmit: vi.fn().mockResolvedValue({ id: "KB-001" }),
    onCancel: vi.fn(),
    addToast: vi.fn(),
  };
  const result = render(<InlineCreateCard {...props} />);
  return { ...result, props };
}

describe("InlineCreateCard blur-to-cancel", () => {
  it("calls onCancel when focus leaves the card with empty input", () => {
    const { props } = renderCard();
    const textarea = screen.getByPlaceholderText("What needs to be done?");

    textarea.focus();
    fireEvent.focusOut(textarea, { relatedTarget: null });

    expect(props.onCancel).toHaveBeenCalledTimes(1);
  });

  it("does NOT call onCancel when focus leaves with non-empty input", () => {
    const { props } = renderCard();
    const textarea = screen.getByPlaceholderText("What needs to be done?");

    fireEvent.change(textarea, { target: { value: "Some task description" } });
    fireEvent.focusOut(textarea, { relatedTarget: null });

    expect(props.onCancel).not.toHaveBeenCalled();
  });

  it("does NOT call onCancel when focus moves to another element inside the card", () => {
    const { props } = renderCard();
    const textarea = screen.getByPlaceholderText("What needs to be done?");
    const depsButton = screen.getByText(/Deps/);

    textarea.focus();
    fireEvent.focusOut(textarea, { relatedTarget: depsButton });

    expect(props.onCancel).not.toHaveBeenCalled();
  });

  it("calls onCancel when blur with only whitespace input", () => {
    const { props } = renderCard();
    const textarea = screen.getByPlaceholderText("What needs to be done?");

    fireEvent.change(textarea, { target: { value: "   " } });
    fireEvent.focusOut(textarea, { relatedTarget: null });

    expect(props.onCancel).toHaveBeenCalledTimes(1);
  });
});