describe('Basic Flow Rendering', () => {
  it('renders a flow with three nodes', () => {
    cy.visit('/index.html');

    cy.get('.react-graph__renderer');
    cy.get('.react-graph__node').should('have.length', 4);
    cy.get('.react-graph__edge').should('have.length', 2);
  });

  it('all nodes have handles', () => {
    cy.get('.react-graph__node').children('div').children('.react-graph__handle');
  });

  it('selects a node', () => {
    cy.get('.react-graph__node:first').click().should('have.class', 'selected');
  });

  it('deselects node', () => {
    cy.get('.react-graph__renderer').click('bottomRight');
    cy.get('.react-graph__node:first').should('not.have.class', 'selected');
  });

  it('selects all nodes', () => {
    cy.get('body')
      .type('{Shift}', { release: false })
      .get('.react-graph__selectionpane')
      .trigger('mousedown', 'topLeft', { which: 1, force: true })
      .trigger('mousemove', 'bottomRight', { which: 1 })
      .trigger('mouseup', 'bottomRight', { force: true })
      .get('.react-graph__node')
      .should('have.class', 'selected')
      .get('.react-graph__nodesselection-rect');
  });

  it('remove selection', () => {
    cy.get('.react-graph__renderer').click('bottomRight');
    cy.get('.react-graph__nodesselection-rect').should('not.exist');
  });

  it('selects an edge', () => {
    cy.get('.react-graph__edge:first').click().should('have.class', 'selected');
  });

  it('drags a node', () => {
    const styleBeforeDrag = Cypress.$('.react-graph__node:first').css('transform');

    cy.drag('.react-graph__node:first', { x: 500, y: 25 })
      .then($el => {
        const styleAfterDrag = $el.css('transform');
        expect(styleBeforeDrag).to.not.equal(styleAfterDrag);
      });
  });

  it('removes a node', () => {
    cy.get('.react-graph__node').contains('Node 2').click();
    cy.get('body').type('{backspace}');

    cy.get('.react-graph__node').should('have.length', 3);
    cy.get('.react-graph__edge').should('have.length', 1);
  });

  it('connects nodes', () => {
    cy.get('.react-graph__node')
      .contains('Node 3')
      .find('.react-graph__handle.source')
      .trigger('mousedown', { which: 1 });

    cy.get('.react-graph__node')
      .contains('Node 4')
      .find('.react-graph__handle.target')
      .trigger('mousemove', { which: 1 })
      .trigger('mouseup', { force: true });

    cy.get('.react-graph__edge').should('have.length', 2);
  })
});