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import path from 'node:path';
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import fs from 'node:fs';
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/**
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 * Provides an Express middleware function that serves a user-defined CSS file from the data directory if it exists.
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 * @type {import('express').Handler}
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 */
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export function userCssMiddleware(req, res, next) {
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    if (req.method === 'GET' && req.path === '/css/user.css') {
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        const userCssPath = path.resolve(path.join(globalThis.DATA_ROOT, '_css', 'user.css'));
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        if (fs.existsSync(userCssPath)) {
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            res.sendFile(userCssPath);
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            return;
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        }
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    }
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    next();
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}
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export default userCssMiddleware;