import moment from 'moment'; import { _ } from 'lib/locale.js'; import { time } from 'lib/time-utils.js'; import { FsDriverDummy } from 'lib/fs-driver-dummy.js'; class Logger { constructor() { this.targets_ = []; this.level_ = Logger.LEVEL_ERROR; this.fileAppendQueue_ = [] } static fsDriver() { if (!Logger.fsDriver_) Logger.fsDriver_ = new FsDriverDummy(); return Logger.fsDriver_; } setLevel(level) { this.level_ = level; } level() { return this.level_; } clearTargets() { this.targets_.clear(); } addTarget(type, options = null) { let target = { type: type }; for (let n in options) { if (!options.hasOwnProperty(n)) continue; target[n] = options[n]; } this.targets_.push(target); } objectToString(object) { let output = ''; if (typeof object === 'object') { if (object instanceof Error) { output = object.toString(); if (object.stack) output += "\n" + object.stack; } else { output = JSON.stringify(object); } } else { output = object; } return output; } objectsToString(...object) { let output = []; for (let i = 0; i < object.length; i++) { output.push('"' + this.objectToString(object[i]) + '"'); } return output.join(', '); } static databaseCreateTableSql() { let output = ` CREATE TABLE IF NOT EXISTS logs ( id INTEGER PRIMARY KEY, source TEXT, level INT NOT NULL, message TEXT NOT NULL, \`timestamp\` INT NOT NULL ); `; return output.split("\n").join(' '); } // Only for database at the moment async lastEntries(limit = 100) { for (let i = 0; i < this.targets_.length; i++) { const target = this.targets_[i]; if (target.type == 'database') { return await target.database.selectAll('SELECT * FROM logs ORDER BY timestamp DESC LIMIT ' + limit); } } return []; } log(level, ...object) { if (this.level() < level || !this.targets_.length) return; let levelString = ''; let line = moment().format('YYYY-MM-DD HH:mm:ss') + ': '; if (level == Logger.LEVEL_WARN) levelString += '[warn] '; if (level == Logger.LEVEL_ERROR) levelString += '[error] '; for (let i = 0; i < this.targets_.length; i++) { let target = this.targets_[i]; if (target.type == 'console') { let fn = 'log'; if (level == Logger.LEVEL_ERROR) fn = 'error'; if (level == Logger.LEVEL_WARN) fn = 'warn'; if (level == Logger.LEVEL_INFO) fn = 'info'; console[fn](line + this.objectsToString(...object)); } else if (target.type == 'file') { let serializedObject = this.objectsToString(...object); Logger.fsDriver().appendFileSync(target.path, line + serializedObject + "\n"); } else if (target.type == 'vorpal') { target.vorpal.log(...object); } else if (target.type == 'database') { let msg = this.objectsToString(...object); target.database.exec('INSERT INTO logs (`source`, `level`, `message`, `timestamp`) VALUES (?, ?, ?, ?)', [target.source, level, msg, time.unixMs()]); } } } error(...object) { return this.log(Logger.LEVEL_ERROR, ...object); } warn(...object) { return this.log(Logger.LEVEL_WARN, ...object); } info(...object) { return this.log(Logger.LEVEL_INFO, ...object); } debug(...object) { return this.log(Logger.LEVEL_DEBUG, ...object); } static levelStringToId(s) { if (s == 'none') return Logger.LEVEL_NONE; if (s == 'error') return Logger.LEVEL_ERROR; if (s == 'warn') return Logger.LEVEL_WARN; if (s == 'info') return Logger.LEVEL_INFO; if (s == 'debug') return Logger.LEVEL_DEBUG; throw new Error(_('Unknown log level: %s', s)); } } Logger.LEVEL_NONE = 0; Logger.LEVEL_ERROR = 10; Logger.LEVEL_WARN = 20; Logger.LEVEL_INFO = 30; Logger.LEVEL_DEBUG = 40; export { Logger };