/**
 * 统一日志
 */
const PREFIX = '[BLE]'

class Logger {
  constructor() { this.enabled = true }
  setEnabled(v) { this.enabled = !!v }

  _fmt(args) { return [PREFIX, ...args] }

  log(...args)   { if (this.enabled) console.log(...this._fmt(args)) }
  info(...args)  { if (this.enabled) console.info(...this._fmt(args)) }
  warn(...args)  { if (this.enabled) console.warn(...this._fmt(args)) }
  error(...args) { console.error(...this._fmt(args)) } // 错误始终输出
}

export default new Logger()