joplin-mcp-server

type LogLevel = "error" | "warn" | "info" | "debug" interface LoggerOptions { logLevel?: LogLevel enableTimestamp?: boolean } class Logger { private readonly logLevel: LogLevel private readonly logLevels: Record<LogLevel, number> private readonly enableTimestamp: boolean constructor(options: LoggerOptions = {}) { this.logLevel = options.logLevel || "info" this.logLevels = { error: 0, warn: 1, info: 2, debug: 3, } this.enableTimestamp = options.enableTimestamp !== false } getTimestamp(): string { return new Date().toISOString() } formatMessage(level: LogLevel, message: string): string { const timestamp = this.enableTimestamp ? `[${this.getTimestamp()}] ` : "" return `${timestamp}[${level.toUpperCase()}] ${message}` } shouldLog(level: LogLevel): boolean { return this.logLevels[level] <= this.logLevels[this.logLevel] } error(message: string): void { if (this.shouldLog("error")) { console.error(this.formatMessage("error", message)) } } warn(message: string): void { if (this.shouldLog("warn")) { console.warn(this.formatMessage("warn", message)) } } info(message: string): void { if (this.shouldLog("info")) { console.info(this.formatMessage("info", message)) } } debug(message: string): void { if (this.shouldLog("debug")) { console.debug(this.formatMessage("debug", message)) } } logObject(level: LogLevel, label: string, obj: any): void { if (this.shouldLog(level)) { const message = `${label}: ${JSON.stringify(obj, null, 2)}` switch (level) { case "error": this.error(message) break case "warn": this.warn(message) break case "info": this.info(message) break case "debug": this.debug(message) break default: this.info(message) } } } } const logger = new Logger({ logLevel: (process.env.LOG_LEVEL as LogLevel) || "info" }) export default logger