import fs from 'fs/promises';

import defaultOptions from './default.js';

export default async function readJsonFile(filePath) {

const paths = { ...defaultOptions };

let fileContents;

try {

fileContents = await fs.readFile(filePath, 'utf8');

} catch (err) {

if (err.code === 'ENOENT') {

// If semantic-react.settings.json is not present return the defaults.

return paths;

}

throw err;

}

const pathsFromSettings = JSON.parse(fileContents);

for (const key of Object.keys(defaultOptions)) {

if (pathsFromSettings[key] !== undefined) {

paths[key] = pathsFromSettings[key];

}

}

return paths;

}