'use strict';

var TestHelper = require('../../../../TestHelper');

/* global bootstrapModeler, inject */

var replacePreviewModule = require('../../../../../lib/features/replace-preview'),
    modelingModule = require('../../../../../lib/features/modeling'),
    moveModule = require('diagram-js/lib/features/move'),
    coreModule = require('../../../../../lib/core');

var is = require('../../../../../lib/util/ModelUtil').is,
    canvasEvent = require('../../../../util/MockEvents').createCanvasEvent;


describe('features/modeling - move start event behavior', function() {

  var testModules = [ replacePreviewModule, modelingModule, coreModule, moveModule ];

  describe('Start Events', function() {
    var diagramXML = require('../../../../fixtures/bpmn/event-sub-processes.bpmn');

    var moveShape;

    beforeEach(bootstrapModeler(diagramXML, { modules: testModules }));

    beforeEach(inject(function(move, dragging, elementRegistry) {

      moveShape = function(shape, target, position) {
        var startPosition = { x: shape.x + 10 + shape.width / 2, y: shape.y + 30 + shape.height/2 };

        move.start(canvasEvent(startPosition), shape);

        dragging.hover({
          element: target,
          gfx: elementRegistry.getGraphics(target)
        });

        dragging.move(canvasEvent(position));
      };
    }));


    it('should select the replacement after replacing the start event',
      inject(function(elementRegistry, canvas, dragging, move, selection) {

      // given
      var startEvent = elementRegistry.get('StartEvent_1'),
          rootElement = canvas.getRootElement();

      // when
      moveShape(startEvent, rootElement, { x: 140, y: 250 });

      dragging.end();

      var replacement = elementRegistry.filter(function(element) {
        if(is(element, 'bpmn:StartEvent') && element.parent === rootElement) {
          return true;
        }
      })[0];

      // then
      expect(selection.get()).to.include(replacement);
      expect(selection.get()).not.to.include(startEvent);

    }));


    it('should select all moved shapes after some of them got replaced',
      inject(function(elementRegistry, canvas, dragging, move, selection) {

      // given
      var startEvent1 = elementRegistry.get('StartEvent_1'),
          startEvent2 = elementRegistry.get('StartEvent_2'),
          startEvent3 = elementRegistry.get('StartEvent_3'),
          rootElement = canvas.getRootElement();

      // when
      selection.select([ startEvent1, startEvent2, startEvent3 ]);
      moveShape(startEvent1, rootElement, { x: 140, y: 250 });

      dragging.end();

      var replacements = elementRegistry.filter(function(element) {
        if(is(element, 'bpmn:StartEvent') && element.type !== 'label') {
          return true;
        }
      });

      // then
      expect(selection.get()).to.include(replacements[0]);
      expect(selection.get()).to.include(replacements[1]);
      expect(selection.get()).to.include(replacements[2]);

    }));

  });

  describe('Cancel Events', function () {

    var diagramXML = require('../../../../fixtures/bpmn/features/replace/cancel-events.bpmn');

    beforeEach(bootstrapModeler(diagramXML, { modules: testModules }));

    describe('- normal -', function() {

      it('should replace CancelEvent when morphing transaction',
        inject(function(elementRegistry, bpmnReplace) {
        // given
        var transaction = elementRegistry.get('Transaction_1'),
            endEvent = elementRegistry.get('EndEvent_1');

        // when
        bpmnReplace.replaceElement(endEvent, {
          type: 'bpmn:EndEvent',
          eventDefinition: 'bpmn:CancelEventDefinition'
        });

        var subProcess = bpmnReplace.replaceElement(transaction, { type: 'bpmn:SubProcess' });

        var newEndEvent = subProcess.children[0].businessObject;

        // then
        expect(subProcess.children).to.have.length(2);
        expect(newEndEvent.eventDefinitions).to.not.exist;
      }));


      it('should replace CancelEvent when morphing transaction -> undo',
        inject(function(elementRegistry, bpmnReplace, commandStack) {
        // given
        var transaction = elementRegistry.get('Transaction_1'),
            endEvent = elementRegistry.get('EndEvent_1');

        // when
        bpmnReplace.replaceElement(endEvent, {
          type: 'bpmn:EndEvent',
          eventDefinition: 'bpmn:CancelEventDefinition'
        });

        bpmnReplace.replaceElement(transaction, { type: 'bpmn:SubProcess' });

        commandStack.undo();

        var endEventAfter = elementRegistry.filter(function(element) {
          return (element.id !== 'EndEvent_2' && element.type === 'bpmn:EndEvent');
        })[0];

        // then
        expect(transaction.children).to.have.length(2);
        expect(endEventAfter.businessObject.eventDefinitions).to.exist;
      }));


      it('should replace a CancelEvent when moving outside of a transaction',
        inject(function(elementRegistry, bpmnReplace, modeling) {
        // given
        var process = elementRegistry.get('Process_1'),
            transaction = elementRegistry.get('Transaction_1'),
            endEvent = elementRegistry.get('EndEvent_1');

        // when
        var cancelEvent = bpmnReplace.replaceElement(endEvent, {
          type: 'bpmn:EndEvent',
          eventDefinition: 'bpmn:CancelEventDefinition'
        });

        modeling.moveElements([ cancelEvent ], { x: 0, y: 150 }, process);

        var endEventAfter = elementRegistry.filter(function(element) {
          return (element.parent === process && element.type === 'bpmn:EndEvent');
        })[0];

        // then
        expect(transaction.children).to.have.length(0);
        expect(endEventAfter.businessObject.eventDefinitions).to.not.exist;
      }));


      it('should replace a CancelEvent when moving outside of a transaction -> undo',
        inject(function(elementRegistry, bpmnReplace, modeling, commandStack) {
        // given
        var process = elementRegistry.get('Process_1'),
            transaction = elementRegistry.get('Transaction_1'),
            endEvent = elementRegistry.get('EndEvent_1');

        // when
        var cancelEvent = bpmnReplace.replaceElement(endEvent, {
          type: 'bpmn:EndEvent',
          eventDefinition: 'bpmn:CancelEventDefinition'
        });

        modeling.moveElements([ cancelEvent ], { x: 0, y: 150 }, process);

        commandStack.undo();

        var endEventAfter = elementRegistry.filter(function(element) {
          return (element.id !== 'EndEvent_2' && element.type === 'bpmn:EndEvent');
        })[0];

        // then
        expect(transaction.children).to.have.length(2);
        expect(endEventAfter.businessObject.eventDefinitions).to.exist;
      }));

    });

    describe('- boundary events -', function() {

      it('should replace CancelBoundaryEvent when morphing from a transaction',
        inject(function(elementRegistry, bpmnReplace) {
        // given
        var boundaryEvent = elementRegistry.get('BoundaryEvent_1'),
            transaction = elementRegistry.get('Transaction_1');

        // when
        bpmnReplace.replaceElement(boundaryEvent, {
          type: 'bpmn:BoundaryEvent',
          eventDefinition: 'bpmn:CancelEventDefinition'
        });

        var subProcess = bpmnReplace.replaceElement(transaction, { type: 'bpmn:SubProcess' });

        var newBoundaryEvent = subProcess.attachers[0].businessObject;

        // then
        expect(newBoundaryEvent.eventDefinitions).to.not.exist;
        expect(newBoundaryEvent.attachedToRef).to.equal(subProcess.businessObject);
        expect(elementRegistry.get('Transaction_1')).to.not.exist;
      }));


      it('should replace CancelBoundaryEvent when morphing from a transaction -> undo',
        inject(function(elementRegistry, bpmnReplace, commandStack) {
        // given
        var boundaryEvent = elementRegistry.get('BoundaryEvent_1'),
            transaction = elementRegistry.get('Transaction_1');

        // when
        bpmnReplace.replaceElement(boundaryEvent, {
          type: 'bpmn:BoundaryEvent',
          eventDefinition: 'bpmn:CancelEventDefinition'
        });

        bpmnReplace.replaceElement(transaction, { type: 'bpmn:SubProcess' });

        commandStack.undo();

        var afterBoundaryEvent = elementRegistry.filter(function(element) {
          return (element.type === 'bpmn:BoundaryEvent' && element.id !== 'BoundaryEvent_2');
        })[0];

        // then
        expect(afterBoundaryEvent.businessObject.eventDefinitions).exist;
        expect(afterBoundaryEvent.businessObject.attachedToRef).to.equal(transaction.businessObject);
        expect(transaction.attachers).to.have.length(1);
      }));


      it('should replace CancelBoundaryEvent when attaching to a NON-transaction',
        inject(function(elementRegistry, bpmnReplace, modeling) {
        // given
        var boundaryEvent = elementRegistry.get('BoundaryEvent_1'),
            subProcess = elementRegistry.get('SubProcess_1'),
            process = elementRegistry.get('Process_1'),
            transaction = elementRegistry.get('Transaction_1');

        // when
        var newBoundaryEvent = bpmnReplace.replaceElement(boundaryEvent, {
          type: 'bpmn:BoundaryEvent',
          eventDefinition: 'bpmn:CancelEventDefinition'
        });

        modeling.moveElements([ newBoundaryEvent ], { x: 500, y: 0 }, subProcess, true);

        var movedBoundaryEvent = elementRegistry.filter(function(element) {
          return (element.type === 'bpmn:BoundaryEvent' && element.id !== 'BoundaryEvent_2');
        })[0];

        // then
        expect(movedBoundaryEvent.businessObject.eventDefinitions).to.not.exist;
        expect(movedBoundaryEvent.businessObject.attachedToRef).to.equal(subProcess.businessObject);
        expect(movedBoundaryEvent.parent).to.equal(process);

        expect(movedBoundaryEvent.host).to.equal(subProcess);
        expect(subProcess.attachers).to.contain(movedBoundaryEvent);
        expect(transaction.attachers).to.be.empty;
      }));


      it('should replace CancelBoundaryEvent when attaching to a NON-transaction -> undo',
        inject(function(elementRegistry, bpmnReplace, modeling, commandStack) {
        // given
        var boundaryEvent = elementRegistry.get('BoundaryEvent_1'),
            transaction = elementRegistry.get('Transaction_1'),
            subProcess = elementRegistry.get('SubProcess_1');

        // when
        var newBoundaryEvent = bpmnReplace.replaceElement(boundaryEvent, {
          type: 'bpmn:BoundaryEvent',
          eventDefinition: 'bpmn:CancelEventDefinition'
        });

        modeling.moveElements([ newBoundaryEvent ], { x: 500, y: 0 }, subProcess, true);

        commandStack.undo();

        var movedBoundaryEvent = elementRegistry.filter(function(element) {
          return (element.type === 'bpmn:BoundaryEvent' && element.id !== 'BoundaryEvent_2');
        })[0];

        // then
        expect(movedBoundaryEvent.businessObject.eventDefinitions).to.exist;
        expect(movedBoundaryEvent.businessObject.attachedToRef).to.equal(transaction.businessObject);

        expect(movedBoundaryEvent.host).to.equal(transaction);
        expect(transaction.attachers).to.contain(movedBoundaryEvent);
        expect(subProcess.attachers).to.have.length(1);
      }));

      it('should NOT allow morphing into an IntermediateEvent',
        inject(function(elementRegistry, bpmnReplace, commandStack, move, dragging) {
        // given
        var boundaryEvent = elementRegistry.get('BoundaryEvent_1'),
            subProcess = elementRegistry.get('SubProcess_1');

        // when
        var newBoundaryEvent = bpmnReplace.replaceElement(boundaryEvent, {
          type: 'bpmn:BoundaryEvent',
          eventDefinition: 'bpmn:CancelEventDefinition'
        });

        move.start(canvasEvent({ x: 0, y: 0 }), newBoundaryEvent);

        dragging.hover({
          gfx: elementRegistry.getGraphics(subProcess),
          element: subProcess
        });
        dragging.move(canvasEvent({ x: 450, y: -50 }));

        var canExecute = dragging.active().data.context.canExecute;

        // then
        expect(canExecute).to.be.false;
      }));

    });

  });

});