suite('DragAndDropEvents', function() {
    // ======================================================
    test('test dragstart, dragmove, dragend', function(done) {
        var stage = addStage();

        var layer = new Konva.Layer();

        var greenCircle = new Konva.Circle({
            x: 40,
            y: 40,
            radius: 20,
            strokeWidth: 4,
            fill: 'green',
            stroke: 'black',
            opacity: 0.5
        });


        var circle = new Konva.Circle({
            x: 380,
            y: stage.getHeight() / 2,
            radius: 70,
            strokeWidth: 4,
            fill: 'red',
            stroke: 'black',
            opacity: 0.5

        });

        circle.setDraggable(true);

        layer.add(circle);
        layer.add(greenCircle);
        stage.add(layer);

        var dragStart = false;
        var dragMove = false;
        var dragEnd = false;
        var mouseup = false;
        var events = [];

        circle.on('dragstart', function() {
            dragStart = true;
        });


        circle.on('dragmove', function() {
            dragMove = true;
        });


        circle.on('dragend', function() {
            dragEnd = true;
            events.push('dragend');
        });



        circle.on('mouseup', function() {
            events.push('mouseup');
        });


        assert(!Konva.isDragging(), ' isDragging() should be false 1');
        assert(!Konva.isDragReady(), ' isDragReady()) should be false 2');

        /*
        * simulate drag and drop
        */
        stage.simulateMouseDown({
            x: 380,
            y: 98
        });
        assert(!dragStart, 'dragstart event should not have been triggered 3');
        //assert.equal(!dragMove, 'dragmove event should not have been triggered');
        assert(!dragEnd, 'dragend event should not have been triggered 4');

        assert(!Konva.isDragging(), ' isDragging() should be false 5');
        assert(Konva.isDragReady(), ' isDragReady()) should be true 6');

        setTimeout(function() {
            stage.simulateMouseMove({
                x: 100,
                y: 98
            });

            assert(Konva.isDragging(), ' isDragging() should be true 7');
            assert(Konva.isDragReady(), ' isDragReady()) should be true 8');

            assert(dragStart, 'dragstart event was not triggered 9');
            //assert.equal(dragMove, 'dragmove event was not triggered');
            assert(!dragEnd, 'dragend event should not have been triggered 10');

            stage.simulateMouseUp({
                x: 100,
                y: 98
            });

            assert(dragStart, 'dragstart event was not triggered 11');
            assert(dragMove, 'dragmove event was not triggered 12');
            assert(dragEnd, 'dragend event was not triggered 13');

            assert.equal(events.toString(), 'mouseup,dragend', 'mouseup should occur before dragend 14');


            assert(!Konva.isDragging(), ' isDragging() should be false 15');
            assert(!Konva.isDragReady(), ' isDragReady()) should be false 16');

            //console.log(greenCircle.getPosition());
            //console.log(circle.getPosition());



            assert.equal(greenCircle.getX(), 40, 'green circle x should be 40');
            assert.equal(greenCircle.getY(), 40, 'green circle y should be 40');
            assert.equal(circle.getX(), 100, 'circle x should be 100');
            assert.equal(circle.getY(), 100, 'circle y should be 100');

            showHit(layer);

            done();
        }, 20);

    });

    // ======================================================
    test('destroy shape while dragging', function(done) {
        var stage = addStage();
        var layer = new Konva.Layer();

        var greenCircle = new Konva.Circle({
            x: 40,
            y: 40,
            radius: 20,
            strokeWidth: 4,
            fill: 'green',
            stroke: 'black',
            opacity: 0.5
        });


        var circle = new Konva.Circle({
            x: 380,
            y: stage.getHeight() / 2,
            radius: 70,
            strokeWidth: 4,
            fill: 'red',
            stroke: 'black',
            opacity: 0.5

        });

        circle.setDraggable(true);

        layer.add(circle);
        layer.add(greenCircle);
        stage.add(layer);

        var dragEnd = false;


        circle.on('dragend', function() {
            dragEnd = true;

        });



        circle.on('mouseup', function() {
            //console.log('mouseup');
            events.push('mouseup');
        });

        assert(!Konva.isDragging(), ' isDragging() should be false');
        assert(!Konva.isDragReady(), ' isDragReady()) should be false');


        stage.simulateMouseDown({
            x: 380,
            y: 98
        });

        assert(!circle.isDragging(), 'circle should not be dragging');

        setTimeout(function() {
            stage.simulateMouseMove({
                x: 100,
                y: 98
            });


            assert(circle.isDragging(), 'circle should be dragging');
            assert(!dragEnd, 'dragEnd should not have fired yet');

            // at this point, we are in drag and drop mode


            // removing or destroying the circle should trigger dragend
            circle.destroy();
            layer.draw();

            assert(!circle.isDragging(), 'destroying circle should stop drag and drop');
            assert(dragEnd, 'dragEnd should have fired');
            done();
        }, 20);


    });

    // ======================================================
    test('click should not occur after drag and drop', function(done) {
        var stage = addStage();
        var layer = new Konva.Layer();

        var circle = new Konva.Circle({
            x: 40,
            y: 40,
            radius: 20,
            strokeWidth: 4,
            fill: 'green',
            stroke: 'black',
            draggable: true
        });


        layer.add(circle);
        stage.add(layer);

        var clicked = false;

        circle.on('click', function() {
            //console.log('click');
            clicked = true;
        });

        circle.on('dblclick', function() {
            //console.log('dblclick');
        });

        stage.simulateMouseDown({
            x: 40,
            y: 40
        });

        setTimeout(function() {
            stage.simulateMouseMove({
                x: 100,
                y: 100
            });

            stage.simulateMouseUp({
                x: 100,
                y: 100
            });

            assert(!clicked, 'click event should not have been fired');

            done();
        }, 20);

    });

    // ======================================================
    test('drag and drop distance', function(done) {
        var stage = addStage();
        var layer = new Konva.Layer();

        var circle = new Konva.Circle({
            x: 40,
            y: 40,
            radius: 20,
            strokeWidth: 4,
            fill: 'green',
            stroke: 'black',
            draggable: true
        });


        layer.add(circle);
        stage.add(layer);
        circle.dragDistance(4);
        var top = stage.content.getBoundingClientRect().top;

        stage.simulateMouseDown({
            x: 40,
            y: 40
        });

        setTimeout(function() {
            stage.simulateMouseMove({
                x: 40,
                y: 42
            });
            assert(!circle.isDragging(), 'still not dragging');
            stage.simulateMouseMove({
                x: 40,
                y: 45
            });
            assert(circle.isDragging(), 'now circle is dragging');
            stage.simulateMouseUp({
                x: 41,
                y: 45
            });

            

            done();
        }, 20);

    });

    // ======================================================
    test('cancel drag and drop by setting draggable to false', function(done) {
        var stage = addStage();
        var layer = new Konva.Layer();
        var circle = new Konva.Circle({
            x: 380,
            y: 100,
            radius: 70,
            strokeWidth: 4,
            fill: 'red',
            stroke: 'black',
            draggable: true
        });

        var dragStart = false;
        var dragMove = false;
        var dragEnd = false;

        circle.on('dragstart', function() {
            dragStart = true;
        });

        circle.on('dragmove', function() {
            dragMove = true;
        });

        circle.on('dragend', function() {
            dragEnd = true;
        });

        circle.on('mousedown', function() {
            circle.setDraggable(false);
        });

        layer.add(circle);
        stage.add(layer);

        var top = stage.content.getBoundingClientRect().top;

        /*
         * simulate drag and drop
         */
        stage.simulateMouseDown({
            x: 380,
            y: 100
        });

        setTimeout(function() {
            stage.simulateMouseMove({
                x: 100,
                y: 100
            });

            stage.simulateMouseUp({
                x: 100,
                y: 100
            });

            assert.equal(circle.getPosition().x, 380, 'circle x should be 380');
            assert.equal(circle.getPosition().y, 100, 'circle y should be 100');
            done();
        }, 20);
    });

    // ======================================================
    test('drag and drop layer', function(done) {
        var stage = addStage();
        var layer = new Konva.Layer({
            drawFunc: function() {
                var context = this.getContext();
                context.beginPath();
                context.moveTo(200, 50);
                context.lineTo(420, 80);
                context.quadraticCurveTo(300, 100, 260, 170);
                context.closePath();
                context.fillStyle = 'blue';
                context.fill(context);
            },
            draggable: true
        });

        var circle1 = new Konva.Circle({
            x: stage.getWidth() / 2,
            y: stage.getHeight() / 2,
            radius: 70,
            fill: 'red'
        });

        var circle2 = new Konva.Circle({
            x: 400,
            y: stage.getHeight() / 2,
            radius: 70,
            fill: 'green'
        });

        layer.add(circle1);
        layer.add(circle2);

        stage.add(layer);

        var top = stage.content.getBoundingClientRect().top;

        /*
         * simulate drag and drop
         */
        stage.simulateMouseDown({
            x: 399,
            y: 96
        });

        setTimeout(function() {
            stage.simulateMouseMove({
                x: 210,
                y: 109
            });

            stage.simulateMouseUp({
                x: 210,
                y: 109
            });

            //console.log(layer.getPosition())

            assert.equal(layer.getX(), -189, 'layer x should be -189');
            assert.equal(layer.getY(), 13, 'layer y should be 13');

            done();
        }, 20);

    });

    // ======================================================
    test('drag and drop stage', function(done) {
          var container = document.createElement('div'),
              stage = new Konva.Stage({
                  container: container,
                  width: 578,
                  height: 200,
                  draggable: true
              });

          konvaContainer.appendChild(container);

        //stage.setDraggable(true);

        var layer = new Konva.Layer();

        var circle = new Konva.Circle({
            x: 100,
            y: 100,
            radius: 70,
            fill: 'red'
        });

        layer.add(circle);
        stage.add(layer);

        var top = stage.content.getBoundingClientRect().top;

        assert.equal(stage.getX(), 0);
        assert.equal(stage.getY(), 0);

        /*
         * simulate drag and drop
         */
        stage.simulateMouseDown({
            x: 0,
            y: 100
        });

        setTimeout(function() {
            stage.simulateMouseMove({
                x: 300,
                y: 110
            });

            stage.simulateMouseUp({
                x: 300,
                y: 110
            });

            assert.equal(stage.getX(), 300);
            assert.equal(stage.getY(), 10);

            done();
        }, 20);

    });
});