var methods = {}; let fs = require('fs'); let util = require('util'); var cfg = require(global['__dirname']+'/bin/config'); // save new line to file newLine = (prefix, obj) => { let date = new Date(); // current date let filename = cfg.log.filename(); // filename let dir = cfg.log.directory(); // directory let path = dir + filename; // filepath let fs_options = { // fs options for encoding, file mode and file flag encoding: "utf8", flag: "a+" // Open file for reading and appending. The file is created if it does not exist. }; let date_string = ("0" + date.getUTCHours()).slice(-2) + ":" + ("0" + date.getUTCMinutes()).slice(-2) + ":" + ("0" + date.getUTCSeconds()).slice(-2); // directory not existing; create directory if(!fs.existsSync(dir)) { fs.mkdir(dir, (err) => { if(err) throw err; }); } // type matching if( typeof obj == "string" || typeof obj == "number" || typeof obj == "boolean" ) fs.appendFileSync(path, prefix + " " + date_string + " | " + obj + "\n", fs_options); else if(typeof obj == "object") { let lines = JSON.stringify(obj, null, '\t'); // prettyprint obj as JSON lines.split(/\r?\n/).forEach((line) => { // for each linebreak (\r | \n) fs.appendFileSync(path, prefix + " " + date_string + " | " + line + "\n", fs_options); }); } else { // do nothing; not supported // typeof obj == "symbol" // typeof obj == "undefined" // typeof obj == "function" } }; log = (fn, ...data) => { if(data.length == 1) data = data[0]; fn.apply(null, data); } // LOG | INFO methods.log = (...data) => { log(console.log, data); if(data.length == 1) data = data[0]; newLine(" [LOG]", data); }; methods.info = methods.log; // WARNING methods.warn = (...data) => { log(console.warn, data); if(data.length == 1) data = data[0]; newLine(" [WARN]", data); }; // ERROR methods.error = (...data) => { log(console.error, data); if(data.length == 1) data = data[0]; newLine("[ERROR]", data); }; methods.err = methods.error; // DEBUG methods.debug = (...data) => { if(global['debug'] === true) { log(console.log, data); if(data.length == 1) data = data[0]; newLine("[DEBUG]", data); } }; module.exports = methods;