builder.js

/**
 * Custom builder
 * 1- Starting from main.js, reads all placeholders recursively to inject the .js files
 * 2- Removes all comment lines after // ==/UserScript==
 * 3- Removes all console.log lines
 * 4- <<temporary>> Removes all shared.devlog lines
 */

let arguments = process.argv;

const defaults = {
  removeComments: false,
  removeLogs: false,
  removeSharedDevLog: false
};

if (arguments.includes('--no-console-log')) {
  defaults.removeLogs = true;
}

if (arguments.includes('--no-faucet-log')) {
  defaults.removeSharedDevLog = true;
}

if (arguments.includes('--no-comments')) {
  defaults.removeComments = true;
}

const fs = require('fs');
const workDir = 'src/';
const mainFile = 'index.js';

/**
 * removeTrailingLines: returns the string without empty lines at the end 
 */
String.prototype.removeTrailingLines = function() {
    let str = this;
    while(str.endsWith('\n')) {
        str = str.slice(0, -1);
    }
    return str;
};

/**
 * addIndentation: adds whitespaces
 */
String.prototype.addIndentation = function(spaces = 0) {
    let str = this;
    let strLines = str.split('\n').map(line => `${' '.repeat(spaces)}${line}`);
    return strLines.join('\n');
};

/**
 * replacePlaceholders: calls mixer for each {{file}} placeholder
 */
String.prototype.replacePlaceholders = function() {
    let str = this;
    const phRegex = /([ \t]*){{([^}]+)}}/g;
    return str.replace(phRegex, (_, indentation, fName) => mixer(fName.trim(), indentation.length));
};

String.prototype.replaceHtmlPlaceholders = function() {
  console.log('@replaceHtmlPlaceholders');
  let str = this;
  const phRegex = /([ \t]*)\/\*\*([^*]+)\*\*\//g;
  console.log(phRegex);
  return str.replace(phRegex, (_, indentation, fName) => htmlReader(fName.trim(), indentation.length));
};

/**
 * mixer: Reads the content of file, trims it, 
 * removes empty lines at the end and 
 * replaces {{file}} placeholdes recursively
 */
const mixer = (file, indentation) => fs.readFileSync(workDir + file, 'utf-8').trim().removeTrailingLines().addIndentation(indentation).replacePlaceholders();

// const htmlReader = (file, indentation) => `\`${fs.readFileSync(workDir + 'ui/html/' + file, 'utf-8').trim().removeTrailingLines().addIndentation(indentation)}\``;
const htmlReader = (file, indentation) => `${fs.readFileSync(workDir + 'ui/html/' + file, 'utf-8').trim().removeTrailingLines().addIndentation(indentation)}`;

let contents = mixer(mainFile);
contents = contents.replaceHtmlPlaceholders();

let filteredLines = contents.split('\n');

if (defaults.removeComments) {
  // Remove all commented lines after '==/UserScript=='
  const endMetaLineNumber = filteredLines.findIndex(x => x.includes('==/UserScript=='));
  if (endMetaLineNumber < 0) {
      console.error('Metadata end line not found');
      return;
  }

  filteredLines = filteredLines.filter((line, index) => {
    if (index <= endMetaLineNumber) {
      return true;
    }
    let tempLine = line.trim();
    if (tempLine.startsWith('//')) {
      return false;
    } else {
      return true;
    }
  });
}

if (defaults.removeLogs) {
  // Remove all lines that contain console.log
  filteredLines = filteredLines.filter((line) => {
    let tempLine = line.trim();
    if (tempLine.startsWith('console.log') && tempLine.includes(');')) {
      return false;
    } else {
      return true;
    }
  });
}

if (defaults.removeSharedDevLog) {
  // Remove all lines that contain shared.devlog
  filteredLines = filteredLines.filter((line, index) => {
    let tempLine = line.trim();
    if ((tempLine.startsWith('shared.devlog') || tempLine.startsWith('shared.addError')) && tempLine.includes(');')) {
      return false;
    } else {
      return true;
    }
  });
}

// Remove whitespaces if line is empty
filteredLines = filteredLines.map((line) => {
    let tempLine = line.trim();
    if (tempLine == '') {
        return tempLine;
    } else {
        return line;
    }
});

// Remove double empty lines
filteredLines = filteredLines.filter((line, idx) => {
    if (idx == 0) {
        return true;
    }
    let previous = filteredLines[idx - 1];
    if (previous == '' && line == '') {
        return false;
    }
    return true;
});

// Join the modified lines back into a single string
const modifiedContents =filteredLines.join('\n');

// Write the modified contents to /dist
fs.writeFileSync('dist/autoclaim-dist.user.js', modifiedContents);
// fs.writeFileSync('dist/autoclaim-v3-beta.user.js', modifiedContents);