Origami/server.js at main · HvKOkla/Origami · GitHub

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const express = require('express');
const fileUpload = require('express-fileupload');
const cheerio = require('cheerio');
const beautify = require('js-beautify');
const fs = require('fs-extra');
const path = require('path');

const app = express();
const PORT = 3000;

// Ces lignes permettent à Express de lire le texte envoyé par le formulaire (le chemin)
app.use(express.urlencoded({ extended: true }));
app.use(fileUpload());

// --- INTERFACE VISUELLE ---
app.get('/', (req, res) => {
    res.send(`
        <!DOCTYPE html>
        <html lang="fr">
        <head>
            <meta charset="UTF-8">
            <meta name="viewport" content="width=device-width, initial-scale=1.0">
            <title>HTML Splitter Local</title>
            <style>
                body { font-family: 'Segoe UI', sans-serif; background: #f0f2f5; display: flex; justify-content: center; align-items: center; height: 100vh; margin: 0; }
                .container { background: white; padding: 40px; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.08); text-align: center; max-width: 450px; width: 100%; }
                h1 { color: #333; margin-bottom: 10px; font-size: 24px; }
                p { color: #666; font-size: 14px; margin-bottom: 30px; }
                .file-drop { border: 2px dashed #28a745; padding: 30px 20px; border-radius: 8px; background: #f4fff6; cursor: pointer; transition: 0.3s; margin-bottom: 20px; display: block; }
                .file-drop:hover { background: #e8ffe0; }
                input[type="file"] { display: none; }
                .input-path { width: 93%; padding: 10px; margin-bottom: 20px; border: 1px solid #ccc; border-radius: 4px; font-family: inherit; }
                .btn { background: #28a745; color: white; border: none; padding: 12px 30px; font-size: 16px; border-radius: 6px; cursor: pointer; font-weight: 600; width: 100%; transition: 0.2s; }
                .btn:hover { background: #218838; }
                #file-name { margin-top: 10px; font-weight: bold; color: #28a745; }
            </style>
        </head>
        <body>
            <div class="container">
                <h1>Code Splitter Local 📁</h1>
                <p>Glisse ton fichier all-in-one et indique où l'extraire.</p>
                <form action="/upload" method="POST" enctype="multipart/form-data">
                    <label class="file-drop">
                        <span id="label-text">📂 Cliquer ou glisser le fichier .html</span>
                        <input type="file" name="htmlFile" accept=".html" required onchange="updateFileName(this)">
                        <div id="file-name"></div>
                    </label>
                    <input type="text" name="customPath" class="input-path" placeholder="Optionnel: C:\\chemin\\de\\destination">
                    <button type="submit" class="btn">Générer la structure</button>
                </form>
            </div>
            <script>
                function updateFileName(input) {
                    const fileName = input.files[0] ? input.files[0].name : "";
                    document.getElementById('file-name').textContent = fileName;
                    document.getElementById('label-text').textContent = "Prêt à être découpé !";
                }
            </script>
        </body>
        </html>
    `);
});

// --- LOGIQUE DE TRAITEMENT ---
app.post('/upload', async (req, res) => {
    if (!req.files || !req.files.htmlFile) {
        return res.status(400).send('Aucun fichier reçu.');
    }

    try {
        const file = req.files.htmlFile;
        const rawHtml = file.data.toString('utf8');
        const $ = cheerio.load(rawHtml);

        // Récupération du chemin utilisateur ou dossier par défaut
        const userPath = req.body.customPath ? req.body.customPath.trim() : __dirname;
        const folderName = `${path.parse(file.name).name}_structure`;
        const outputDir = path.join(userPath, folderName);

        // Initialisation des dossiers
        await fs.emptyDir(outputDir);
        await fs.ensureDir(path.join(outputDir, 'css'));
        await fs.ensureDir(path.join(outputDir, 'js'));
        await fs.ensureDir(path.join(outputDir, 'assets'));

        let extractedCss = "";
        let extractedJs = "";
        let assetCounter = 0;

        function saveBase64Asset(base64Str) {
            const matches = base64Str.match(/^data:([a-zA-Z0-9]+\/[a-zA-Z0-9-.+]+);base64,(.+)$/);
            if (!matches) return null;

            const ext = matches[1].split('/')[1] || 'png';
            const data = matches[2];
            const fileName = `extracted_asset_${++assetCounter}.${ext}`;

            const assetPath = path.join(outputDir, 'assets', fileName);
            fs.writeFileSync(assetPath, Buffer.from(data, 'base64'));

            return `assets/${fileName}`;
        }

        // 1. Découpage CSS
        $('style').each((i, el) => {
            let cssText = $(el).html() || "";
            const base64Regex = /url\(["']?(data:image\/[^"';]+;base64,[^"'\)]+)["']?\)/g;
            cssText = cssText.replace(base64Regex, (match, p1) => {
                const relativePath = saveBase64Asset(p1);
                return relativePath ? `url('../${relativePath}')` : match;
            });
            extractedCss += cssText + "\n\n";
            $(el).remove();
        });

        // 2. Découpage JS
        $('script').not('[src]').each((i, el) => {
            extractedJs += ($(el).html() || "") + "\n\n";
            $(el).remove();
        });

        // 3. Images HTML
        $('img').each((i, el) => {
            const src = $(el).attr('src');
            if (src && src.startsWith('data:image')) {
                const relativePath = saveBase64Asset(src);
                if (relativePath) {
                    $(el).attr('src', relativePath);
                }
            }
        });

        // 4. Écriture
        if (extractedCss.trim()) {
            const formattedCss = beautify.css(extractedCss, { indent_size: 2 });
            await fs.writeFile(path.join(outputDir, 'css', 'style.css'), formattedCss);
            $('head').append('    <link rel="stylesheet" href="css/style.css">\n');
        }

        if (extractedJs.trim()) {
            const formattedJs = beautify.js(extractedJs, { indent_size: 2 });
            await fs.writeFile(path.join(outputDir, 'js', 'script.js'), formattedJs);
            $('body').append('    <script src="js/script.js" defer></script>\n');
        }

        const cleanHtml = beautify.html($.html(), { indent_size: 2 });
        await fs.writeFile(path.join(outputDir, 'index.html'), cleanHtml);

        res.send(`
            <div style="font-family: sans-serif; text-align: center; margin-top: 50px;">
                <h2 style="color: #28a745;">🎉 Découpage réussi !</h2>
                <p>Ton projet a été créé à cet emplacement :</p>
                <code style="background: #eee; padding: 10px; border-radius: 5px; display: inline-block;">${outputDir}</code>
                <br><br>
                <a href="/" style="color: #007bff; text-decoration: none; font-weight: bold;">← Convertir un autre fichier</a>
            </div>
        `);

    } catch (err) {
        console.error(err);
        res.status(500).send('Une erreur est survenue lors du traitement.');
    }
});

app.listen(PORT, () => {
    console.log(`\n⚡ Outil lancé ! Disponible sur http://localhost:${PORT}`);
});