/**
 * Task CAD-12b - Globale Keyboard-Shortcuts fuer den Editor.
 *
 * ESC = aktives Tool abbrechen, Delete/Entf = Auswahl loeschen,
 * Strg+A = alles auswaehlen, Strg+D = Auswahl duplizieren,
 * F7 = Grid toggle, F8 = Ortho toggle, F3 = Snap toggle.
 */
import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
import { createKeyboardShortcuts, type ShortcutAction } from '../src/services/keyboardShortcuts';
describe('CAD-12b: keyboardShortcuts', () => {
  let actions: Record<string, ReturnType<typeof vi.fn>>;
  let handler: (e: KeyboardEvent) => void;
  let cleanup: () => void;

  beforeEach(() => {
    actions = {
      escape: vi.fn(),
      delete: vi.fn(),
      selectAll: vi.fn(),
      duplicate: vi.fn(),
      toggleGrid: vi.fn(),
      toggleOrtho: vi.fn(),
      toggleSnap: vi.fn(),
    };
    const ctrl = createKeyboardShortcuts(actions as unknown as ShortcutAction);
    handler = ctrl.handler;
    cleanup = ctrl.destroy;
  });

  afterEach(() => { cleanup(); });

  const fire = (key: string, opts: { ctrl?: boolean; shift?: boolean } = {}) => {
    handler({ key, ctrlKey: opts.ctrl ?? false, shiftKey: opts.shift ?? false, preventDefault: vi.fn() } as unknown as KeyboardEvent);
  };

  it('ESC ruft escape auf (Tool abbrechen)', () => {
    fire('Escape');
    expect(actions.escape).toHaveBeenCalledTimes(1);
  });

  it('Delete und Entf rufen delete auf (Auswahl loeschen)', () => {
    fire('Delete');
    expect(actions.delete).toHaveBeenCalledTimes(1);
    fire('Backspace');
    expect(actions.delete).toHaveBeenCalledTimes(2);
  });

  it('Strg+A ruft selectAll auf', () => {
    fire('a', { ctrl: true });
    expect(actions.selectAll).toHaveBeenCalledTimes(1);
  });

  it('Strg+D ruft duplicate auf', () => {
    fire('d', { ctrl: true });
    expect(actions.duplicate).toHaveBeenCalledTimes(1);
  });

  it('F7 ruft toggleGrid auf', () => {
    fire('F7');
    expect(actions.toggleGrid).toHaveBeenCalledTimes(1);
  });

  it('F8 ruft toggleOrtho auf', () => {
    fire('F8');
    expect(actions.toggleOrtho).toHaveBeenCalledTimes(1);
  });

  it('F3 ruft toggleSnap auf', () => {
    fire('F3');
    expect(actions.toggleSnap).toHaveBeenCalledTimes(1);
  });

  it('Buchstaben ohne Strg loesen KEINE Aktion aus', () => {
    fire('a');
    fire('d');
    fire('x');
    expect(actions.selectAll).not.toHaveBeenCalled();
    expect(actions.duplicate).not.toHaveBeenCalled();
  });

  it('Input-Feld-Fokus wird ignoriert (kein Shortcut wenn in Input/Textarea)', () => {
    // Simuliere: Event-Target ist ein Input-Element
    const inputEvent = {
      key: 'a',
      ctrlKey: true,
      shiftKey: false,
      preventDefault: vi.fn(),
      target: { tagName: 'INPUT', isContentEditable: false },
    } as unknown as KeyboardEvent & { target: { tagName: string } };
    handler(inputEvent);
    expect(actions.selectAll).not.toHaveBeenCalled();
  });
});