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import { blue, green, yellow, red, dim } from 'https://deno.land/std@0.106.0/fmt/colors.ts'
export type LevelNames = 'debug' | 'info' | 'warn' | 'error' | 'fatal'
export enum Level {  Debug = 0,  Info = 1,  Warn = 2,  Error = 3,  Fatal = 4,}
export class Logger {  #level: Level = Level.Info
  get level(): Level {    return this.#level  }
  setLevel(level: LevelNames): void {    switch (level) {      case 'debug':        this.#level = Level.Debug        break      case 'info':        this.#level = Level.Info        break      case 'warn':        this.#level = Level.Warn        break      case 'error':        this.#level = Level.Error        break      case 'fatal':        this.#level = Level.Fatal        break    }  }
  debug(...args: unknown[]): void {    if (this.#level <= Level.Debug) {      console.debug(blue('DEBUG'), ...args)    }  }
  info(...args: unknown[]): void {    if (this.#level <= Level.Info) {      console.log(green('INFO'), ...args)    }  }
  warn(...args: unknown[]): void {    if (this.#level <= Level.Warn) {      console.warn(yellow('WARN'), ...args)    }  }
  error(...args: unknown[]): void {    if (this.#level <= Level.Error) {      console.error(red('ERROR'), ...args)    }  }
  fatal(...args: unknown[]): void {    if (this.#level <= Level.Fatal) {      console.error(red('FATAL'), ...args)      Deno.exit(1)    }  }}
export class Measure {  #t: number
  constructor() {    this.#t = logger.level === Level.Debug ? performance.now() : 0  }
  reset() {    if (this.#t > 0) {      this.#t = performance.now()    }  }
  stop(message: string) {    if (this.#t > 0) {      const now = performance.now()      const d = Math.round(now - this.#t)      let cf = green      if (d > 10000) {        cf = red      } else if (d > 1000) {        cf = yellow      }      this.#t = now      console.debug(dim('TIMING'), message, 'in', cf(d + 'ms'))    }  }}
const logger = new Logger()
export default logger