Baijador de memes

baixador-de-memes.js

/* eslint-env es6 */

var __STOP = false
/**
 * @type {HTMLElement}
 */
var __DIVA

function getReactionUrls() {
    __STOP = false
    var imgElements = Array.from(document.querySelectorAll('.UFIRow .mvs img'))
    var imgUrls = []
    STOPBTN()

    return getUrlsP = imgElements.reduce( (chain,element) => {
        return chain.then( () => fetchImgUrl(element) )
    }, Promise.resolve()).then(() => {
        console.log(imgUrls)
        return imgUrls
    })

    function fetchImgUrl(imgElement) {
        if (__STOP) return
        imgElement.click()
        var _src
        return waitP(4000).then( () => {
            var url = document.querySelector('.fbPhotoSnowliftContainer img').src
            imgUrls.push(url)
            document.querySelector('a[data-testid="xhp_fb__photos__snowliftclose"]').click()
            return waitP(1000)
        })
    }

    function waitP(ms) {
        return new Promise( resolve => {
            setTimeout(() => {
                resolve()
            },ms)
        })
    }

    function STOPBTN() {
        if (__DIVA) {
            document.body.removeChild(__DIVA)
        }
        __DIVA = document.createElement('div')
        __DIVA.innerHTML = 'PARA COM ISSO'
        __DIVA.style.zIndex = '999999'
        __DIVA.style.color = 'red'
        __DIVA.style.position = 'fixed'
        __DIVA.style.top = '100px'
        __DIVA.style.left = '100px'
        __DIVA.style.fontSize = '60px'
        __DIVA.style.fontWeight = 'bold'
        __DIVA.addEventListener('click', () => {
            console.log('TA BOM EU PEÇO PINICO')
            __STOP = true
        })  
        document.body.appendChild(__DIVA) 
    }
}


function downloadReactions(urls) {

    console.log('tentando baixar o.o')

    var all = urls.map( url => {
        return jqueryGet(url).then( blob => {
            saveData(blob, url.substr(-20) + '.jpg')
        })
    })

    return Promise.all(all).then( () => {
        console.log('eu acho que terminou!')
    })

    function jqueryGet(url) {
        return new Promise( (resolve, reject) => {
            var oReq = new XMLHttpRequest();
            oReq.open("GET", url, true);
            oReq.responseType = "arraybuffer";
            oReq.onload = function(oEvent) {
                var blob = new Blob([oReq.response], {type: "image/jpeg"});
                resolve(blob)
            };
            oReq.send();
        } )
    }

    function saveData(content,fileName) {
        var a = document.createElement("a");
        a.style = "display: none";
        document.body.appendChild(a);
        var blob = new Blob([content], {type: "image/jpeg"});
        var url = window.URL.createObjectURL(blob);
        a.href = url;
        a.download = fileName;
        a.click();
        window.URL.revokeObjectURL(url);
    }

}