/* eslint-disable no-useless-escape */
/* eslint-disable no-undef */
const fs = require("fs");

const TESTS_FOLDER = "./LeetcodeProblemsTests/Algorithms/";
const REGEX_PATTERN_HIDDEN_FILES = /(^|\/)\.[^\/\.]/g;

var test_all = async function () {
  try {
    const problems = await loadProblems();
    for (i in problems) {
      console.log("Solving: " + problems[i]);
      const tests = require(TESTS_FOLDER + problems[i]);  
      if (Object.keys(tests).length == 0) {
        console.warn("🔴 The problem " + problems[i] + " doesn't have a test method implemented.\n");
        continue;
      }
      for(testIdx in tests) {
        tests[testIdx]();
      }
      console.log("✅ Tests for " + problems[i] + " run successfully \n");
    }
  } catch (error) {
    throw new Error(error);
  }
};

var loadProblems = () => {
  return new Promise(function (resolve, reject) {
    fs.readdir(TESTS_FOLDER, (error, files) => {
      if (error) {
        reject(error);
      } else {
        problems = files.filter(
          (item) => !REGEX_PATTERN_HIDDEN_FILES.test(item)
        );
        resolve(problems);
      }
    });
  });
};

test_all();