import { getBpmnJS } from 'bpmn-js/test/helper';

import {
  BpmnPropertiesPanelModule,
  BpmnPropertiesProviderModule,
} from 'bpmn-js-properties-panel';
import { getBusinessObject } from 'bpmn-js/lib/util/ModelUtil';
import spiffModdleExtension from '../../app/spiffworkflow/moddle/spiffworkflow.json';
import {
  bootstrapPropertiesPanel,
  changeInput,
  expectSelected,
  findEntry,
  findSelect,
  getPropertiesPanel,
} from './helpers';
import extensions from '../../app/spiffworkflow/extensions';

describe('Business Rule Properties Panel', function () {
  const xml = require('./bpmn/diagram.bpmn').default;

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


  const return_files = (event) => {
    event.eventBus.fire('spiff.dmn_files.returned', {
      options: [
        { label: 'Calculate Pizza Price', value: 'Decision_Pizza_Price' },
        { label: 'Viking Availability', value: 'Decision_Vikings' },
        { label: 'Test Decision', value: 'test_decision' },
      ],
    });
  }

  it('should display a dropdown to select from available decision tables', async function () {
    const modeler = getBpmnJS();
    modeler.get('eventBus').once('spiff.dmn_files.requested', return_files);
    expectSelected('business_rule_task');
    // THEN - a properties panel exists with a section for editing that script
    const entry = findEntry('extension_spiffworkflow:calledDecisionId', getPropertiesPanel());
    expect(entry, 'No Entry').to.exist;
    const selectList = findSelect(entry);
    expect(selectList, 'No Select').to.exist;
  });

  it('should update the spiffworkflow:calledDecisionId tag when you modify the called decision select box', async function () {
    // IF - a script tag is selected, and you change the script in the properties panel
    const modeler = getBpmnJS();
    modeler.get('eventBus').once('spiff.dmn_files.requested', return_files);
    const businessRuleTask = await expectSelected('business_rule_task');
    const entry = findEntry('extension_calledDecisionId', getPropertiesPanel());
    const selectList = findSelect(entry);
    changeInput(selectList, 'Decision_Pizza_Price');

    // THEN - the script tag in the BPMN Business object / XML is updated as well.
    const businessObject = getBusinessObject(businessRuleTask);
    expect(businessObject.extensionElements).to.exist;
    const element = businessObject.extensionElements.values[0];
    expect(element.value).to.equal('Decision_Pizza_Price');
  });

  it('should load up the xml and the value for the called decision should match the xml', async function () {
    const businessRuleTask = await expectSelected('business_rule_task');
    const entry = findEntry('extension_calledDecisionId', getPropertiesPanel());
    const selectList = findSelect(entry);
    expect(selectList.value, "initial value is wrong").to.equal('test_decision');

    // THEN - the script tag in the BPMN Business object / XML is updated as well.
    const businessObject = getBusinessObject(businessRuleTask);
    expect(businessObject.extensionElements).to.exist;
    const element = businessObject.extensionElements.values[0];
    expect(element.value).to.equal('test_decision');
  });

});