/* eslint no-invalid-this: "off" */

import config from './config.js';
import Nightmare from 'nightmare';
import {URL} from 'url';

Nightmare.action('login', function(userName, done) {
    this.goto(`${config.url}auth/?apiKey=salix`)
        .wait(`vn-login input[name=user]`)
        .write(`vn-login input[name=user]`, userName)
        .write(`vn-login input[name=password]`, 'nightmare')
        .click(`vn-login input[type=submit]`)
    // FIXME: Wait for dom to be ready: https://github.com/segmentio/nightmare/issues/481
        .wait(1000)
        .then(done);
});

Nightmare.action('changeLanguageToEnglish', function(done) {
    this.wait('#lang')
        .evaluate((selector) => {
            return document.querySelector(selector).title;
        }, '#lang')
        .then((title) => {
            if (title === 'Change language')
                this.then(done);
            else {
                this.click('#lang')
                    .click('vn-main-menu [vn-id="langs-menu"] ul > li[name="en"]')
                    .then(done);
            }
        });
});

Nightmare.action('waitForLogin', function(userName, done) {
    this.login(userName)
        .waitForURL('#!/')
        .url()
        .changeLanguageToEnglish()
        .then(done);
});

Nightmare.action('parsedUrl', function(done) {
    this.url()
        .then((url) => {
            done(null, new URL(url));
        });
});

Nightmare.action('getProperty', function(selector, property, done) {
    this.evaluate_now((selector, property) => {
        return document.querySelector(selector)[property].replace(/\s+/g, ' ').trim();
    }, done, selector, property);
});

Nightmare.action('waitPropertyLength', function(selector, property, minLength, done) {
    this.wait((selector, property, minLength) => {
        const element = document.querySelector(selector);
        return element && element[property] != null && element[property] !== '' && element[property].length >= minLength;
    }, selector, property, minLength)
        .getProperty(selector, property)
        .then((result) => done(null, result), done);
});

Nightmare.action('waitProperty', function(selector, property, done) {
    this.wait((selector, property) => {
        const element = document.querySelector(selector);
        return element && element[property] != null && element[property] !== '';
    }, selector, property)
        .getProperty(selector, property)
        .then((result) => done(null, result), done);
});

Nightmare.action('getInnerText', function(selector, done) {
    this.wait(selector)
        .evaluate_now(function(elementToSelect) {
            return document.querySelector(elementToSelect).innerText;
        }, done, selector);
});

Nightmare.action('getInputValue', function(selector, done) {
    this.wait(selector)
        .evaluate_now(function(elementToSelect) {
            return document.querySelector(elementToSelect).value;
        }, done, selector);
});

Nightmare.action('clearInput', function(selector, done) {
    const backSpaces = [];
    for (let i = 0; i < 50; i += 1)
        backSpaces.push('\u0008');

    this.wait(selector)
        .type(selector, backSpaces.join(''))
        .then(done);
});

Nightmare.action('write', function(selector, text, done) {
    this.wait(selector)
        .type(selector, text)
        .then(done);
});

Nightmare.action('waitToClick', function(selector, done) {
    this.wait(selector)
        .click(selector)
        .then(done);
});

Nightmare.action('isVisible', function(selector, done) {
    this.wait(selector)
        .evaluate_now((elementSelector) => {
            const selectorMatches = document.querySelectorAll(elementSelector);
            const element = selectorMatches[0];
            if (selectorMatches.length > 1)
                throw new Error(`multiple matches of ${elementSelector} found`);

            let isVisible = false;
            if (element) {
                const eventHandler = (event) => {
                    event.preventDefault();
                    isVisible = true;
                };
                element.addEventListener('mouseover', eventHandler);
                const elementBoundaries = element.getBoundingClientRect();
                const x = elementBoundaries.left + element.offsetWidth / 2;
                const y = elementBoundaries.top + element.offsetHeight / 2;
                const elementInCenter = document.elementFromPoint(x, y);
                const elementInTopLeft = document.elementFromPoint(elementBoundaries.left, elementBoundaries.top);
                const elementInBottomRight = document.elementFromPoint(elementBoundaries.right, elementBoundaries.bottom);
                const e = new MouseEvent('mouseover', {
                    view: window,
                    bubbles: true,
                    cancelable: true,
                });
                if (elementInCenter)
                    elementInCenter.dispatchEvent(e);

                if (elementInTopLeft)
                    elementInTopLeft.dispatchEvent(e);

                if (elementInBottomRight)
                    elementInBottomRight.dispatchEvent(e);

                element.removeEventListener('mouseover', eventHandler);
            }
            return isVisible;
        }, done, selector);
});

Nightmare.action('selectText', function(selector, done) {
    this.wait(selector)
        .evaluate((elementToSelect) => {
            const range = document.createRange();
            range.selectNodeContents(document.querySelector(elementToSelect));
            const sel = window.getSelection();
            sel.removeAllRanges();
            sel.addRange(range);
        }, selector)
        .mouseup(selector)
        .then(done);
});

Nightmare.action('countElement', function(selector, done) {
    this.evaluate_now((selector) => {
        return document.querySelectorAll(selector).length;
    }, done, selector);
});

Nightmare.action('waitForNumberOfElements', function(selector, count, done) {
    this.wait((resultSelector, expectedCount) => {
        return document.querySelectorAll(resultSelector).length === expectedCount;
    }, selector, count)
        .then(done);
});

Nightmare.action('waitForClassNotPresent', function(selector, className, done) {
    this.wait(selector)
        .wait((resultSelector, targetClass) => {
            if (!document.querySelector(resultSelector).classList.contains(targetClass))
                return true;
        }, selector, className)
        .then(done);
});

Nightmare.action('waitForClassPresent', function(selector, className, done) {
    this.wait(selector)
        .wait((resultSelector, targetClass) => {
            if (document.querySelector(resultSelector).classList.contains(targetClass))
                return true;
        }, selector, className)
        .then(done);
});

Nightmare.action('waitForTextInElement', function(selector, name, done) {
    this.wait(selector)
        .wait((resultSelector, expectedText) => {
            return document.querySelector(resultSelector).innerText.toLowerCase().includes(expectedText.toLowerCase());
        }, selector, name)
        .then(done);
});

Nightmare.action('waitForTextInInput', function(selector, name, done) {
    this.wait(selector)
        .wait((resultSelector, expectedText) => {
            return document.querySelector(resultSelector).value.toLowerCase().includes(expectedText.toLowerCase());
        }, selector, name)
        .then(done);
});

Nightmare.action('waitForInnerText', function(selector, done) {
    this.wait(selector)
        .wait((selector) => {
            const innerText = document.querySelector(selector).innerText;
            return innerText != null && innerText != '';
        }, selector)
        .evaluate_now((selector) => {
            return document.querySelector(selector).innerText;
        }, done, selector);
});

Nightmare.action('waitForEmptyInnerText', function(selector, done) {
    this.wait((selector) => {
        return document.querySelector(selector).innerText == '';
    }, selector)
        .then(done);
});

Nightmare.action('waitForURL', function(hashURL, done) {
    this.wait((hash) => {
        return document.location.hash.includes(hash);
    }, hashURL)
        .then(done);
});

Nightmare.action('waitForShapes', function(selector, done) {
    this.wait(selector)
        .evaluate_now((selector) => {
            const shapes = document.querySelectorAll(selector);
            const shapesList = [];

            for (const shape of shapes)
                shapesList.push(shape.innerText);


            return shapesList;
        }, done, selector);
});

Nightmare.action('waitForSnackbar', function(done) {
    this.wait(500).waitForShapes('vn-snackbar .shape .text')
        .then((shapes) => {
            done(null, shapes);
        });
});

Nightmare.action('waitForLastShape', function(selector, done) {
    this.wait(selector)
        .evaluate_now((selector) => {
            const shape = document.querySelector(selector);

            return shape.innerText;
        }, done, selector);
});

Nightmare.action('waitForLastSnackbar', function(done) {
    this.wait(500).waitForLastShape('vn-snackbar .shape .text')
        .then((shapes) => {
            done(null, shapes);
        });
});