/* global cy require expect */

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

// Assert that Impress is *not* in Text Edit Mode.
function assertNotInTextEditMode() {
	cy.log('Verifying NO Text-Edit context.');

	// In edit mode, we should have the blinking cursor.
	cy.get('.leaflet-cursor.blinking-cursor')
		.should('not.exist');
	cy.get('.leaflet-cursor-container')
		.should('not.exist');

	helper.assertNoKeyboardInput();

	cy.log('NO Text-Edit context verified.');
}

// Assert that Impress is in Text Edit Mode.
function assertInTextEditMode() {
	cy.log('Verifying Impress in Text-Edit context.');

	// In edit mode, we should have the edit container.
	cy.get('#doc-clipboard-container')
		.should('exist');

	cy.get('.leaflet-interactive')
		.should('exist');

	cy.get('.leaflet-pane.leaflet-overlay-pane svg g')
		.should('exist');

	helper.assertCursorAndFocus();

	cy.log('Impress Text-Edit context verified.');
}

// Enter some text and confirm we get it back.
function typeTextAndVerify(text, expected) {
	if (!expected)
		expected = text;

	assertInTextEditMode();

	// Type some text.
	helper.typeIntoDocument(text);

	// Still in edit mode.
	assertInTextEditMode();

	helper.selectAllText();

	helper.expectTextForClipboard(expected);
}

// Make sure we have the right number of slides in the document.
// We use the number of slide previews as indicators.
// Parameters:
// slides - number of expected slides
function assertNumberOfSlidePreviews(slides) {
	cy.get('#slide-sorter .preview-frame')
		.should('have.length', slides + 1);
}

// Select a text shape at the center of the slide / view.
// This method triggers mouse click in the center to achive
// a shape selection. It fails, if there is no shape there.
function selectTextShapeInTheCenter() {
	cy.log('Selecting text shape - start.');

	// Click on the center of the slide to select the text shape there
	cy.get('#document-container')
		.then(function(items) {
			expect(items).to.have.length(1);
			var XPos = (items[0].getBoundingClientRect().left + items[0].getBoundingClientRect().right) / 2;
			var YPos = (items[0].getBoundingClientRect().top + items[0].getBoundingClientRect().bottom) / 2;
			cy.get('body')
				.click(XPos, YPos);
		});

	cy.get('.leaflet-drag-transform-marker')
		.should('be.visible');

	cy.get('.leaflet-pane.leaflet-overlay-pane svg g.Page g')
		.should('exist');

	cy.log('Selecting text shape - end.');
}

// Remove existing shape selection by clicking outside of the shape.
function removeShapeSelection() {
	cy.log('Removing shape selection - start.');

	// Remove selection with clicking on the top-left corner of the slide
	cy.waitUntil(function() {
		cy.get('.leaflet-canvas-container canvas')
			.then(function(items) {
				var XPos = items[0].getBoundingClientRect().left + 10;
				var YPos = items[0].getBoundingClientRect().top + 10;
				cy.get('body')
					.click(XPos, YPos);
			});

		cy.wait(2000);

		return cy.get('.leaflet-overlay-pane svg')
			.then(function(overlay) {
				return overlay.children('g').length === 0;
			});
	});

	cy.get('.leaflet-drag-transform-marker')
		.should('not.exist');

	cy.log('Removing shape selection - end.');
}


// We use an SVG representation of the Impress shapes
// to check it's content, it's shape, etc. We can use
// this method to trigger the update of the SVG representation
// so we can be sure that it's in an updated state.
function triggerNewSVGForShapeInTheCenter() {
	cy.log('Triggering new SVG for shape - start.');

	removeShapeSelection();

	// If we click too fast on the shape again
	// then it steps into edit mode, might be a bug
	cy.wait(200);

	// Select text shape again which will retrigger a new SVG from core
	selectTextShapeInTheCenter();

	cy.log('Triggering new SVG for shape - end.');
}

// Select the text inside a preselected shape. So we assume
// we have already a shape selected. We try to select the
// text of this shape by double clicking into it, until the
// cursor becomes visible.
function selectTextOfShape() {
	cy.log('Selecting text of shape - start.');

	// Double click onto the selected shape
	cy.waitUntil(function() {
		cy.get('svg g .leaflet-interactive')
			.then(function(items) {
				expect(items).to.have.length(1);
				var XPos = (items[0].getBoundingClientRect().left + items[0].getBoundingClientRect().right) / 2;
				var YPos = (items[0].getBoundingClientRect().top + items[0].getBoundingClientRect().bottom) / 2;
				cy.get('body')
					.dblclick(XPos, YPos);
			});

		cy.wait(2000);

		return cy.get('.cursor-overlay')
			.then(function(overlay) {
				return overlay.children('.leaflet-cursor-container').length !== 0;
			});
	});

	cy.get('.leaflet-cursor.blinking-cursor')
		.should('exist');

	helper.selectAllText();

	cy.log('Selecting text of shape - end.');
}

// Step into text editing of the preselected shape. So we assume
// we have already a shape selected. We try to make the document
// to switch text editing mode by double clicking into the shape.
function dblclickOnSelectedShape() {
	cy.get('.transform-handler--rotate')
		.then(function(items) {
			expect(items).to.have.length(1);
			var XPos = (items[0].getBoundingClientRect().left + items[0].getBoundingClientRect().right) / 2;
			var YPos = items[0].getBoundingClientRect().bottom + 50;
			cy.get('body')
				.dblclick(XPos, YPos);
		});

	cy.get('.leaflet-cursor.blinking-cursor')
		.should('exist');
}

//add multiple comments
function addComment(numberOfComments) {

	for (var n=0;n<numberOfComments;n++) {
		cy.get('#menu-insert').click()
			.get('#menu-insertcomment').click();

		cy.get('.loleaflet-annotation-table')
			.should('exist');

		cy.get('.loleaflet-annotation-edit[style=""]')
			.type('some text ' + n);

		cy.get('.loleaflet-annotation-edit[style=""] #annotation-save')
			.click();
	}
}

//add multiple slides
function addSlide(numberOfSlides) {
	var insertSlideButton = cy.get('#tb_presentation-toolbar_item_insertpage');
	for (let i=0;i<numberOfSlides;i++) {
		insertSlideButton.should('not.have.class', 'disabled')
			.click();
	}
}

//change multiple slides
function changeSlide(changeNum,direction) {
	var slideButton;
	if (direction === 'next') {
		slideButton = cy.get('#tb_actionbar_item_next');
	} else if (direction === 'previous') {
		slideButton = cy.get('#tb_actionbar_item_prev');
	}
	if (slideButton) {
		for (var n=0;n<changeNum;n++) {
			slideButton.click();
		}
	}
}

module.exports.assertNotInTextEditMode = assertNotInTextEditMode;
module.exports.assertInTextEditMode = assertInTextEditMode;
module.exports.typeTextAndVerify = typeTextAndVerify;
module.exports.assertNumberOfSlidePreviews = assertNumberOfSlidePreviews;
module.exports.selectTextShapeInTheCenter = selectTextShapeInTheCenter;
module.exports.triggerNewSVGForShapeInTheCenter = triggerNewSVGForShapeInTheCenter;
module.exports.removeShapeSelection = removeShapeSelection;
module.exports.selectTextOfShape = selectTextOfShape;
module.exports.dblclickOnSelectedShape = dblclickOnSelectedShape;
module.exports.addComment = addComment;
module.exports.addSlide = addSlide;
module.exports.changeSlide = changeSlide;