'use strict';

var fs = require('fs');
var path = require('path');

function readFileSync(filepath, options) {
    if (!filepath) return;
    return fs.existsSync(filepath) ? fs.readFileSync(filepath, options) : undefined;
}

function readFileAsNormalizedStrSync(filepath, options) {
    const str = readFileSync(filepath, options);
    return str ? str.toString().replace(/(\r\n|\r|\n)/g, '\n') : undefined;
}

function readJSONFileSync(filepath, options) {
    const str = readFileAsNormalizedStrSync(filepath, options);
    return str ? JSON.parse(str) : undefined;
}

function writeFileSync(filePath, data, options) {
    if (!filePath) return;
    if (typeof data === 'object') {
        data = JSON.stringify(data);
    }
    if (!fs.existsSync(filePath)) {
        fs.mkdirSync(path.dirname(filePath), {
            recursive: true
        });
    }
    fs.writeFileSync(filePath, data, options);
}

function writeJSONFileSync(filePath, data, options) {
    if (!filePath || !data) return;
    if (typeof data === 'object') {
        data = JSON.stringify(data);
    }
    writeFileSync(filePath, data, options);
}

exports.readFileAsNormalizedStrSync = readFileAsNormalizedStrSync;
exports.readFileSync = readFileSync;
exports.readJSONFileSync = readJSONFileSync;
exports.writeFileSync = writeFileSync;
exports.writeJSONFileSync = writeJSONFileSync;