Fetch all project files

Rassemble tous les fichiers d'un projet sur la page de ce dernier. Plus besoin d'aller voir chaque lien. Les PDF peuvent également être ouverts dans le navigateur sans les télécharger.
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// ==UserScript==
// @name         Fetch all project files
// @namespace    http://tampermonkey.net/
// @version      2024-02-04
// @description  Rassemble tous les fichiers d'un projet sur la page de ce dernier. Plus besoin d'aller voir chaque lien. Les PDF peuvent également être ouverts dans le navigateur sans les télécharger.
// @author       Arthur Decaen
// @match        https://gandalf.epitech.eu/course/view.php*
// @icon         data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant        none
// ==/UserScript==

class File {
    constructor(title, url, date, icon) {
        this.title = title
        this.url = url
        this.date = date
        this.icon = icon
    }
}

const PREVIEW_ICON = "https://upload.wikimedia.org/wikipedia/commons/thumb/8/87/PDF_file_icon.svg/1200px-PDF_file_icon.svg.pngimage.png?ex=65f8b74e&is=65e6424e&hm=32c1781c087cc782bed9a8acdcb7bf1354cde1331b9d1fd0cb1c446a8b2caebd"

async function fetchSite(url) {
    try {
        const response = await fetch(url);
        if (!response.ok) throw new Error(`Erreur de requête: ${response.status}`);
        return await response.text();
    } catch (error) {
        console.error(`Erreur: ${error.message}`);
    }
}

function extractFilesFromPageContent(pageContent) {
    const parser = new DOMParser();
    const doc = parser.parseFromString(pageContent, 'text/html');
    const filesdiv = doc.querySelectorAll('.fp-filename-icon, .fileuploadsubmission');
    const filesData = []

    filesdiv.forEach(file => {
        try {
            const name = file.textContent
            const url = file.querySelectorAll('a[href]')[0]?.href
            const date = file?.nextSibling?.innerText
            const icon = file.querySelectorAll('.icon.icon')[0]?.src
            if (!url) return
            filesData.push(new File(name, url, date ?? "", icon))
        } catch(e) { console.log(e) }
    });

    return filesData
}

function preparePage() {
    const accordion = document.querySelectorAll('.accordion.collapsibletopics')[0]
    const newDiv = document.createElement('div');
    newDiv.textContent = 'Contenu du nouveau div';

    newDiv.innerHTML = `<div class="containerLinks">
    <span class="sectionname linkName">All files</span>
    </div>`

    accordion.insertBefore(newDiv, accordion.firstChild.nextSibling);

    return newDiv
}

function openPreview()
{
    const url = this.getAttribute('url')

    fetch(url)
        .then(response => response.blob())
        .then(blob => { window.open(URL.createObjectURL(blob), '_blank') })
        .catch(e => { console.log(e) })
}

function addToPage(files, zone) {
    const filesDiv = files.map((file) => {
        const fileType = file.title.split('.').pop().trim().toLowerCase()

        return `<div class="links">
        <img src="${file.icon}"></img>
        <div class="linkDiv">
            <a href="${file.url}" title="${file.title}">${file.title}</a>
            ${fileType == 'pdf'
                ? `<button url="${file.url}" title="Open Preview"><img src="${PREVIEW_ICON}"/></button>`
                : ''}
        </div>
        <span>${file.date}</span>
        </div>`
    }).join("")
    zone.innerHTML += `${filesDiv}`

    const buttons = zone.querySelectorAll('button')
    buttons.forEach(button => {
        button.addEventListener('click', openPreview)
    })
}

(function() {
    'use strict';

    const styles = `
    .containerLinks {
        background: #f4f4f0;
        margin-bottom: 10px;
        font-size: 1rem;
        padding: 10px;
        padding-left: 25px;
        padding-right: 25px;
        display: flex;
        flex-direction: column;
        gap: 5px;
    }

    .links {
        display: grid;
        grid-template-columns: 20px 1fr 1fr;
        grid-template-rows: 1fr;
        grid-column-gap: 8px;
        text-wrap: nowrap;
    }

    .links .linkDiv button {
        border: none;
    }

    .links img {
        width: 20px;
    }

    .links .linkDiv a {
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .sectionname.linkName {
        margin-bottom: 5px;
        font-size: 1.5rem;
        width: fit-content;
    }
    `

    var styleSheet = document.createElement("style")
    styleSheet.innerText = styles
    document.head.appendChild(styleSheet)

    const linksDiv = document.querySelectorAll(".activityinstance")
    const links = []
    for (var i = 0; i != linksDiv.length; i++) {
        const a = linksDiv[i].getElementsByTagName("a")[0]
        links.push(a.href)
    }

    preparePage()
    const zone = document.querySelectorAll('.containerLinks')[0]

    links.forEach(async (link) => {
        const pageContent = await fetchSite(link)
        const files = extractFilesFromPageContent(pageContent)
        addToPage(files, zone)
    })
})();