import {
  bootstrapPropertiesPanel, changeInput,
  expectSelected,
  findEntry,
  PROPERTIES_PANEL_CONTAINER
} from './helpers';
import {
  query as domQuery,
} from 'min-dom';

import spiffModdleExtension from '../../app/spiffworkflow/moddle/spiffworkflow.json';
import { BpmnPropertiesPanelModule, BpmnPropertiesProviderModule } from 'bpmn-js-properties-panel';
import { getBusinessObject } from 'bpmn-js/lib/util/ModelUtil';
import extensions from '../../app/spiffworkflow/extensions';

describe('Properties Panel Script Tasks', function() {
  let xml = require('./bpmn/diagram.bpmn').default;

  beforeEach(bootstrapPropertiesPanel(xml, {
    debounceInput: false,
    additionalModules: [
      extensions,
      BpmnPropertiesPanelModule,
      BpmnPropertiesProviderModule,
    ],
    moddleExtensions: {
      spiffworkflow: spiffModdleExtension
    },
  }));

  it('should display a script editing panel when a script task is selected', async function() {

    // IF - you select a script task
    expectSelected('my_script_task');

    // THEN - a properties panel exists with a section for editing that script
    let entry = findEntry('pythonScript_bpmn:script', PROPERTIES_PANEL_CONTAINER);
    expect(entry).to.exist;
    const scriptInput = domQuery('textarea', entry);
    expect(scriptInput).to.exist;
  });

  it('should update the bpmn:script tag when you modify the script field', async function() {

    // IF - a script tag is selected, and you change the script in the properties panel
    const scriptTask = await expectSelected('my_script_task');
    let entry = findEntry('pythonScript_bpmn:script', PROPERTIES_PANEL_CONTAINER);
    const scriptInput = domQuery('textarea', entry);
    changeInput(scriptInput, 'x = 100');

    // THEN - the script tag in the BPMN Business object / XML is updated as well.
    let businessObject = getBusinessObject(scriptTask);
    expect(businessObject.get('script')).to.equal('x = 100');
    expect(scriptInput.value).to.equal('x = 100');
  });

  it('should parse the bpmn:script tag when you open an existing file', async function() {

    await expectSelected('task_confirm');
    let entry = findEntry('pythonScript_spiffworkflow:preScript', PROPERTIES_PANEL_CONTAINER);
    const scriptInput = domQuery('textarea', entry);
    expect(scriptInput.value).to.equal('x=1');
  });

});