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import type { MiddlewareFunc } from "../types.ts";import type { Context } from "../context.ts";import type { Skipper } from "./skipper.ts";
import { DefaultSkipper } from "./skipper.ts";const { writeSync, stdout } = Deno;
export type Formatter = (c: Context) => string;
const encoder = new TextEncoder();
export const DefaultFormatter: Formatter = (c) => {  const req = c.request;
  const time = new Date().toISOString();  const method = req.method;  const url = req.url || "/";  const protocol = c.request.proto;
  return `${time} ${method} ${url} ${protocol}\n`;};
export const DefaultLoggerConfig: LoggerConfig = {  skipper: DefaultSkipper,  formatter: DefaultFormatter,  output: stdout,};
export function logger(  config: LoggerConfig = DefaultLoggerConfig,): MiddlewareFunc {  if (config.formatter == null) {    config.formatter = DefaultLoggerConfig.formatter;  }  if (config.skipper == null) {    config.skipper = DefaultLoggerConfig.skipper;  }  if (config.output == null) {    config.output = stdout;  }  return (next) =>    (c) => {      if (config.skipper!(c)) {        return next(c);      }      writeSync(config.output!.rid, encoder.encode(config.formatter!(c)));      return next(c);    };}
export interface LoggerConfig {  skipper?: Skipper;  formatter?: Formatter;
  // Default is Deno.stdout.  output?: { rid: number };}