/* global sinon */

import {
  bootstrapModeler,
  inject
} from 'test/TestHelper';

import autoPlaceModule from 'lib/features/auto-place';
import coreModule from 'lib/core';
import labelEditingModule from 'lib/features/label-editing';
import modelingModule from 'lib/features/modeling';
import selectionModule from 'diagram-js/lib/features/selection';

import { getBusinessObject } from '../../../../lib/util/ModelUtil';

import { getMid } from 'diagram-js/lib/layout/LayoutUtil';


describe('features/auto-place', function() {

  describe('element placement', function() {

    var diagramXML = require('./AutoPlace.bpmn');

    before(bootstrapModeler(diagramXML, {
      modules: [
        coreModule,
        modelingModule,
        autoPlaceModule,
        selectionModule
      ]
    }));


    describe('should place bpmn:FlowNode', function() {

      it('at default distance after START_EVENT_1', autoPlace({
        element: 'bpmn:Task',
        behind: 'START_EVENT_1',
        expectedBounds: { x: 1052, y: 224, width: 100, height: 80 }
      }));


      it('at incoming distance after TASK_0', autoPlace({
        element: 'bpmn:Task',
        behind: 'TASK_0',
        expectedBounds: { x: 262, y: 54, width: 100, height: 80 }
      }));


      it('at incoming distance / quorum after TASK_5', autoPlace({
        element: 'bpmn:Task',
        behind: 'TASK_5',
        expectedBounds: { x: 296, y: 390, width: 100, height: 80 }
      }));


      it('at existing outgoing / below TASK_2', autoPlace({
        element: 'bpmn:Task',
        behind: 'TASK_1',
        expectedBounds: { x: 279, y: 293, width: 100, height: 80 }
      }));


      it('ignoring existing, far away outgoing of TASK_3', autoPlace({
        element: 'bpmn:Task',
        behind: 'TASK_3',
        expectedBounds: { x: 746, y: 127, width: 100, height: 80 }
      }));


      it('behind bpmn:SubProcess', autoPlace({
        element: 'bpmn:Task',
        behind: 'SUBPROCESS_1',
        expectedBounds: { x: 925, y: 368, width: 100, height: 80 }
      }));

    });


    describe('should place bpmn:DataStoreReference', function() {

      it('bottom right of source', autoPlace({
        element: 'bpmn:DataStoreReference',
        behind: 'TASK_2',
        expectedBounds: { x: 369, y: 303, width: 50, height: 50 }
      }));


      it('next to existing', autoPlace({
        element: 'bpmn:DataStoreReference',
        behind: 'TASK_3',
        expectedBounds: { x: 769, y: 247, width: 50, height: 50 }
      }));

    });


    describe('should place bpmn:TextAnnotation', function() {

      it('top right of source', autoPlace({
        element: 'bpmn:TextAnnotation',
        behind: 'TASK_2',
        expectedBounds: { x: 379, y: 103, width: 100, height: 30 }
      }));


      it('above existing', autoPlace({
        element: 'bpmn:TextAnnotation',
        behind: 'TASK_3',
        expectedBounds: { x: 696, y: -4, width: 100, height: 30 }
      }));

    });

  });


  describe('integration', function() {

    var diagramXML = require('./AutoPlace.bpmn');

    before(bootstrapModeler(diagramXML, {
      modules: [
        autoPlaceModule,
        coreModule,
        labelEditingModule,
        modelingModule,
        selectionModule
      ]
    }));


    it('should complete direct edit on autoPlace', inject(
      function(autoPlace, directEditing, elementFactory, elementRegistry) {

        // given
        var element = elementFactory.createShape({ type: 'bpmn:Task' });

        var source = elementRegistry.get('TASK_2');

        directEditing.activate(source);

        directEditing._textbox.content.textContent = 'foo';

        // when
        autoPlace.append(source, element);

        // then
        expect(getBusinessObject(source).name).to.equal('foo');
      }
    ));


    it('should select + direct edit on autoPlace', inject(
      function(autoPlace, elementRegistry, elementFactory, selection, directEditing) {

        // given
        var element = elementFactory.createShape({ type: 'bpmn:Task' });

        var source = elementRegistry.get('TASK_2');

        // when
        var newShape = autoPlace.append(source, element);

        // then
        expect(selection.get()).to.eql([ newShape ]);

        expect(directEditing.isActive()).to.be.true;
        expect(directEditing._active.element).to.equal(newShape);
      }
    ));

  });


  describe('multi connection handling', function() {

    var diagramXML = require('./AutoPlace.multi-connection.bpmn');

    before(bootstrapModeler(diagramXML, {
      modules: [
        coreModule,
        modelingModule,
        autoPlaceModule,
        selectionModule,
        labelEditingModule
      ]
    }));


    it('should ignore multiple source -> target connections', inject(
      function(autoPlace, elementRegistry, elementFactory, selection, directEditing) {

        // given
        var element = elementFactory.createShape({ type: 'bpmn:Task' });

        var source = elementRegistry.get('TASK_1');
        var alignedElement = elementRegistry.get('TASK_3');

        // when
        var newShape = autoPlace.append(source, element);

        // then
        expect(newShape.x).to.eql(alignedElement.x);
      }
    ));

  });


  describe('boundary event connection handling', function() {

    var diagramXML = require('./AutoPlace.boundary-events.bpmn');

    before(bootstrapModeler(diagramXML, {
      modules: [
        coreModule,
        modelingModule,
        autoPlaceModule,
        selectionModule
      ]
    }));


    it('should place bottom right of BOUNDARY_BOTTOM', autoPlace({
      element: 'bpmn:Task',
      behind: 'BOUNDARY_BOTTOM',
      expectedBounds: { x: 241, y: 213, width: 100, height: 80 }
    }));


    it('should place bottom right of BOUNDARY_SUBPROCESS_BOTTOM', autoPlace({
      element: 'bpmn:Task',
      behind: 'BOUNDARY_SUBPROCESS_BOTTOM',
      expectedBounds: { x: 278, y: 495, width: 100, height: 80 }
    }));


    it('should place top right of BOUNDARY_TOP', autoPlace({
      element: 'bpmn:Task',
      behind: 'BOUNDARY_TOP',
      expectedBounds: { x: 242, y: -27, width: 100, height: 80 }
    }));

    it('should place top right of BOUNDARY_TOP_RIGHT without infinite loop', autoPlace({
      element: 'bpmn:Task',
      behind: 'BOUNDARY_TOP_RIGHT',
      expectedBounds: { x: 473, y: -27, width: 100, height: 80 }
    }));

    it('should place top right of BOUNDARY_SUBPROCESS_TOP', autoPlace({
      element: 'bpmn:Task',
      behind: 'BOUNDARY_SUBPROCESS_TOP',
      expectedBounds: { x: 275, y: 194, width: 100, height: 80 }
    }));

  });


  describe('eventbus integration', function() {

    var diagramXML = require('./AutoPlace.bpmn');

    beforeEach(bootstrapModeler(diagramXML, {
      modules: [
        autoPlaceModule,
        coreModule,
        labelEditingModule,
        modelingModule,
        selectionModule
      ]
    }));


    it('<autoPlace.start>', inject(
      function(autoPlace, elementFactory, elementRegistry, eventBus) {

        // given
        var element = elementFactory.createShape({ type: 'bpmn:Task' });

        var source = elementRegistry.get('TASK_2');

        var listener = sinon.spy(function(event) {

          // then
          expect(event.shape).to.equal(element);
          expect(event.source).to.equal(source);
        });

        eventBus.on('autoPlace.start', listener);

        // when
        autoPlace.append(source, element);

        expect(listener).to.have.been.called;
      }
    ));


    it('<autoPlace>', inject(
      function(autoPlace, elementFactory, elementRegistry, eventBus) {

        // given
        var element = elementFactory.createShape({ type: 'bpmn:Task' });

        var source = elementRegistry.get('TASK_2');

        var listener = sinon.spy(function(event) {

          // then
          expect(event.shape).to.equal(element);
          expect(event.source).to.equal(source);

          return {
            x: 0,
            y: 0
          };
        });

        eventBus.on('autoPlace', listener);

        // when
        autoPlace.append(source, element);

        expect(listener).to.have.been.called;

        expect(getMid(element)).to.eql({
          x: 0,
          y: 0
        });
      }
    ));


    it('<autoPlace.end>', inject(
      function(autoPlace, elementFactory, elementRegistry, eventBus) {

        // given
        var element = elementFactory.createShape({ type: 'bpmn:Task' });

        var source = elementRegistry.get('TASK_2');

        var listener = sinon.spy(function(event) {

          // then
          expect(event.shape).to.equal(element);
          expect(event.source).to.equal(source);
        });

        eventBus.on('autoPlace.end', listener);

        // when
        autoPlace.append(source, element);

        expect(listener).to.have.been.called;
      }
    ));

  });

});




// helpers //////////////////////

function autoPlace(cfg) {

  var element = cfg.element,
      behind = cfg.behind,
      expectedBounds = cfg.expectedBounds;

  return inject(function(autoPlace, elementRegistry, elementFactory) {

    var sourceEl = elementRegistry.get(behind);

    // assume
    expect(sourceEl).to.exist;

    if (typeof element === 'string') {
      element = { type: element };
    }

    var shape = elementFactory.createShape(element);

    // when
    var placedShape = autoPlace.append(sourceEl, shape);

    // then
    expect(placedShape).to.have.bounds(expectedBounds);
  });
}