adventure-runner/index.js

Runner util for nodeschool adventures

'use strict';
var fs = require('fs'),
  path = require('path'),
  adventure = require('adventure'),
  caller = path.dirname(require('caller')());

module.exports = function (name, problems) {
  var getDirectories = function (srcpath) {
    if (!fs.existsSync(srcpath)) {
      throw new Error(srcpath || 'srcpath' + ' not found!');
    }
    return fs.readdirSync(srcpath).filter(function (file) {
      return fs.statSync(path.join(srcpath, file)).isDirectory();
    });
  };

  if (typeof name !== 'string') {
    throw new TypeError('Expected a string');
  }

  var requireProblems = function (problems, root) {
    root = root || path.join(caller, 'problems/');
    var advent = adventure(name);
    problems.forEach(function (prob) {
      advent.add(prob, function () {
        return require(path.join(root + prob));
      });
    });
    advent.execute(process.argv.slice(2));
  };

  if (problems instanceof Array) {
    requireProblems(problems);
  } else {
    requireProblems(getDirectories(path.join(caller, problems)));
  }
};