alistair/dist/log/index.js

import * as c from 'colorette';
import { inspect } from 'node:util';

// Copyright 2026 Alistair Smith https://github.com/alii/alistair

var widestPrefix = 9;
var widestPrefixAsIndent = " ".repeat(widestPrefix);
function logger({
  backend = console,
  indentString = widestPrefixAsIndent
} = {}) {
  let indentLevel = 0;
  const getIntentText = (lastChar) => {
    let result = "";
    for (let i = 0; i < indentLevel; i++) {
      const isLast = i === indentLevel - 1;
      if (isLast && lastChar) {
        result += indentString + lastChar;
      } else {
        result += indentString + "\u2502 ";
      }
    }
    return c.gray(result);
  };
  function make(level, prefix) {
    return (...args) => {
      const indent = getIntentText();
      const resultArgs = [];
      for (let i = 0; i < args.length; i++) {
        const arg = args[i];
        if (typeof arg === "string") {
          resultArgs.push(arg);
          continue;
        }
        const inspected = inspect(arg, {
          colors: c.isColorSupported,
          depth: 10
        });
        const isError = arg instanceof Error;
        if (isError) {
          const colored = inspected.split("\n").map((line, index) => {
            if (index === 0) {
              return line;
            }
            return c.gray(line.trim());
          }).join("\n");
          resultArgs.push(colored);
        } else {
          resultArgs.push(inspected);
        }
      }
      const string = resultArgs.join(" ");
      let result = [];
      const split = string.split("\n");
      for (let i = 0; i < split.length; i++) {
        const line = split[i];
        if (i === 0) {
          result.push(indent + " " + prefix + " " + line);
        } else {
          result.push(indent + " " + widestPrefixAsIndent + " " + line);
        }
      }
      backend[level](result.join("\n"));
    };
  }
  return {
    indent: (fn) => {
      indentLevel += 1;
      backend.info(getIntentText("\u250C\u2500"));
      fn();
      backend.info(getIntentText("\u2514\u2500"));
      indentLevel -= 1;
    },
    /**
     * Print an info message
     */
    info: make("info", c.blue("info".padStart(widestPrefix))),
    /**
     * Print a success message
     */
    success: make("info", c.greenBright("success".padStart(widestPrefix))),
    /**
     * Print a listening message
     */
    listening: make("info", c.cyan("listening".padStart(widestPrefix))),
    /**
     * Print a debug message
     */
    debug: make("debug", c.cyan(c.bold("debug".padStart(widestPrefix)))),
    /**
     * Print a fatal message
     */
    fatal: make("error", c.red(c.bold("fatal".padStart(widestPrefix)))),
    /**
     * Print an error message
     */
    error: make("error", c.red(c.bold("error".padStart(widestPrefix)))),
    /**
     * Print a warning message
     */
    warn: make("warn", c.yellow(c.bold("warn".padStart(widestPrefix))))
  };
}
var log = logger();

export { log, logger };