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// Copyright 2020 Yamboy1. All rights reserved. MIT license.
import {  yellow,  gray,  red,  bold,  blue,} from "https://deno.land/std@0.51.0/fmt/colors.ts";import { LogEntry, LogLevel, SinkFunction } from "./types.ts";
/** A function that changes the color of a string in the terminal, generally from std/fmt/colors.ts */export type ColorFunction = (str: string) => string;
/** Options for the console sink */export interface ConsoleOptions {  /** Whether colors should be enabled*/  enableColors: boolean;  /** Color overrides for the sink */  colorOptions: Partial<ColorOptions>;}
/** Color overrides for the console sink */export interface ColorOptions {  debug: ColorFunction;  info: ColorFunction;  warn: ColorFunction;  error: ColorFunction;  critical: ColorFunction;}
/** A console sink (with colors) */export function consoleSink({  enableColors = true,colorOptions: {    debug = gray,    info = blue,    warn = yellow,    error = red,    critical = (str: string) => bold(red(str))  } = {},}: Partial<ConsoleOptions> = {}): SinkFunction {  return ({ level, formattedMessage }: LogEntry) => {    let color;    if (enableColors) {      color = ({        [LogLevel.DEBUG]: debug,        [LogLevel.INFO]: info,        [LogLevel.WARN]: warn,        [LogLevel.ERROR]: error,        [LogLevel.CRITICAL]: critical,      })[level] ?? ((x: string) => x);    } else {      color = (x: string) => x;    }
    console.log(color(formattedMessage));  };}
/** A basic sink to write to a file */export function fileSink(filename: string): SinkFunction {  const encoder = new TextEncoder();
  return ({ formattedMessage }: LogEntry) => {    Deno.writeFileSync(      filename,      encoder.encode(formattedMessage + "\n"),      { create: true, append: true },    );  };}