import { describe, it } from '@ephox/bedrock-client';
import { SugarElement } from '@ephox/sugar';
import { assert } from 'chai';
import { bounds } from 'ephox/alloy/alien/Boxes';
import * as Bubble from 'ephox/alloy/positioning/layout/Bubble';
import * as Layout from 'ephox/alloy/positioning/layout/Layout';
import * as Bounder from 'ephox/alloy/positioning/view/Bounder';
describe('BounderCursorTest', () => {
    const check = (expected, preference, anchor, panel, bubbles, bounds) => {
        const placee = SugarElement.fromTag('div');
        const actual = Bounder.attempts(placee, preference, anchor, panel, bubbles, bounds);
        assert.equal(actual.layout, expected.layout, 'layout');
        assert.equal(actual.rect.x, expected.x, 'X');
        assert.equal(actual.rect.y, expected.y, 'Y');
        if (expected.candidateY !== undefined) {
            assert.equal(actual.testY, expected.candidateY, 'Candidate Y');
        }
    };
    // Layout is for boxes with a bubble pointing to a cursor position (vertically aligned to nearest side)
    const four = [Layout.southeast, Layout.southwest, Layout.northeast, Layout.northwest];
    const two = [Layout.east, Layout.west];
    const panelBox = bounds(0, 0, 100, 75);
    const bigPanel = bounds(0, 0, 75, 500);
    const widePanel = bounds(0, 0, 350, 500);
    const view = bounds(50, 50, 350, 220);
    const bubb = Bubble.fallback();
    it('an empty input array is invalid and just returns anchor coordinates', () => {
        check({
            layout: 'none',
            x: 0,
            y: 0
        }, [], bounds(0, 0, 10, 10), bounds(0, 0, 50, 50), Bubble.nu(0, 0, {}), bounds(0, 0, 1000, 1000));
        check({
            layout: 'none',
            x: 100,
            y: 0
        }, [], bounds(100, 0, 200, 50), bounds(0, 0, 150, 25), Bubble.nu(10, 0, {}), bounds(0, 0, 1000, 1000));
    });
    /*
     * The expected values include the calculations that layout and bounder are doing
     */
    it('southeast', () => {
        const anchor = bounds(100, 55, 2, 2);
        check({
            layout: 'layout-southeast',
            x: anchor.x,
            y: anchor.bottom, // 57
        }, four, anchor, panelBox, bubb, view);
    });
    it('southwest', () => {
        const anchor = bounds(320, 55, 2, 2);
        check({
            layout: 'layout-southwest',
            x: anchor.right - panelBox.width,
            y: anchor.bottom, // 57
        }, four, anchor, panelBox, bubb, view);
    });
    it('northeast', () => {
        const anchor = bounds(140, 235, 2, 2);
        check({
            layout: 'layout-northeast',
            x: anchor.x,
            y: anchor.y - panelBox.height // 160
        }, four, anchor, panelBox, bubb, view);
    });
    it('northwest', () => {
        const anchor = bounds(320, 235, 2, 2);
        check({
            layout: 'layout-northwest',
            x: anchor.right - panelBox.width,
            y: anchor.y - panelBox.height, // 160
        }, four, anchor, panelBox, bubb, view);
    });
    it('all fit -> southeast because of order of preference', () => {
        const anchor = bounds(270, 100, 2, 2);
        check({
            layout: 'layout-southeast',
            x: anchor.x,
            y: anchor.bottom // 102
        }, four, anchor, panelBox, bubb, view);
    });
    it('none near top left -> best fit is southeast', () => {
        const anchor = bounds(55, 55, 2, 2);
        check({
            layout: 'layout-southeast',
            x: anchor.x,
            y: anchor.bottom, // 57
        }, four, anchor, bigPanel, bubb, view);
    });
    it('none near top right -> best fit is southwest', () => {
        const anchor = bounds(350, 55, 2, 2);
        check({
            layout: 'layout-southwest',
            x: anchor.right - bigPanel.width,
            y: anchor.bottom, // 57
        }, four, anchor, bigPanel, bubb, view);
    });
    it('none near bottom left -> best fit is northeast', () => {
        const anchor = bounds(55, 200, 2, 2);
        check({
            layout: 'layout-northeast',
            x: anchor.x,
            y: view.y,
            candidateY: anchor.y - bigPanel.height, // -300
        }, four, anchor, bigPanel, bubb, view);
    });
    it('none near bottom right -> best fit is northwest', () => {
        const anchor = bounds(350, 200, 2, 2);
        check({
            layout: 'layout-northwest',
            x: anchor.right - bigPanel.width,
            y: view.y,
            candidateY: anchor.y - bigPanel.height, // -300
        }, four, anchor, bigPanel, bubb, view);
    });
    it('TBIO-3366: prevents negative x', () => {
        // Southwest
        const anchorSW = bounds(300, 50, 2, 2);
        check({
            layout: 'layout-southwest',
            x: view.x,
            y: anchorSW.bottom // 52
        }, four, anchorSW, widePanel, bubb, view);
        // northwest
        const anchorNW = bounds(300, 200, 2, 2);
        check({
            layout: 'layout-northwest',
            x: view.x,
            y: view.y,
            candidateY: anchorNW.y - widePanel.height, // -300
        }, four, anchorNW, widePanel, bubb, view);
    });
    it('southeast (1px short on x and y)', () => {
        const anchor = bounds(view.right - panelBox.width - 1, view.bottom - panelBox.height - 2 - 1, 2, 2);
        check({
            layout: 'layout-southeast',
            x: anchor.x,
            y: anchor.bottom, // 194
        }, four, anchor, panelBox, bubb, view);
    });
    it('southeast (exactly for x and y)', () => {
        const anchor = bounds(view.right - panelBox.width, view.bottom - panelBox.height - 2, 2, 2);
        check({
            layout: 'layout-southeast',
            x: anchor.x,
            y: anchor.bottom, // 195
        }, four, anchor, panelBox, bubb, view);
    });
    it('southeast -> southwest (1px too far on x)', () => {
        const anchor = bounds(view.right - panelBox.width + 1, view.bottom - panelBox.height - 2, 2, 2);
        check({
            layout: 'layout-southwest',
            x: anchor.right - panelBox.width,
            y: anchor.bottom, // 195
        }, four, anchor, panelBox, bubb, view);
    });
    it('southeast -> northeast (1px too far on y)', () => {
        const anchor = bounds(view.right - panelBox.width, view.bottom - panelBox.height - 2 + 1, 2, 2);
        check({
            layout: 'layout-northeast',
            x: anchor.x,
            y: anchor.y - panelBox.height, // 119
        }, four, anchor, panelBox, bubb, view);
    });
    it('southeast -> northwest (1px too far on x and y)', () => {
        const anchor = bounds(view.right - panelBox.width + 1, view.bottom - panelBox.height - 2 + 1, 2, 2);
        check({
            layout: 'layout-northwest',
            x: anchor.right - panelBox.width,
            y: anchor.y - panelBox.height, // 119
        }, four, anchor, panelBox, bubb, view);
    });
    it('east', () => {
        const anchor = bounds(55, 150, 10, 10);
        check({
            layout: 'layout-east',
            x: anchor.right,
            y: anchor.y + (anchor.height / 2) - (panelBox.height / 2), // 117.5
        }, two, anchor, panelBox, bubb, view);
    });
    it('none near bottom left -> best fit is east (limited to bottom bounds)', () => {
        const anchor = bounds(55, 240, 10, 10);
        check({
            layout: 'layout-east',
            x: anchor.right,
            y: view.bottom - panelBox.height // 195 - constrained within viewport
        }, two, anchor, panelBox, bubb, view);
    });
    it('none near top left -> best fit is east (limited to top bounds)', () => {
        const anchor = bounds(55, 80, 10, 10);
        check({
            layout: 'layout-east',
            x: anchor.right,
            y: view.y, // 50 - constrained within viewport
        }, two, anchor, panelBox, bubb, view);
    });
    it('west', () => {
        const anchor = bounds(350, 150, 10, 10);
        check({
            layout: 'layout-west',
            x: anchor.x - panelBox.width,
            y: anchor.y + (anchor.height / 2) - (panelBox.height / 2), // 117.5
        }, two, anchor, panelBox, bubb, view);
    });
    it('none near bottom right -> best fit is west (limited to bottom bounds)', () => {
        const anchor = bounds(350, 240, 10, 10);
        check({
            layout: 'layout-west',
            x: anchor.x - panelBox.width,
            y: view.bottom - panelBox.height // 195 - constrained within viewport
        }, two, anchor, panelBox, bubb, view);
    });
    it('none near top right -> best fit is west (limited to top bounds)', () => {
        const anchor = bounds(350, 80, 10, 10);
        check({
            layout: 'layout-west',
            x: anchor.x - panelBox.width,
            y: view.y, // 50 - constrained within viewport
        }, two, anchor, panelBox, bubb, view);
    });
});
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