const sample = await Deno.readTextFile("sample.txt");
const sample2 = await Deno.readTextFile("sample2.txt");
const input = await Deno.readTextFile("input.txt");

const wordsToNumbers: Record<string, number> = {
  one: 1,
  two: 2,
  three: 3,
  four: 4,
  five: 5,
  six: 6,
  seven: 7,
  eight: 8,
  nine: 9,
};

const getNumberStringsFromString = (data: string): string[] =>
  data.match(/(\d)/g) ?? [];

const getNumberStringsAndNumberWordsFromString = (data: string): string[] =>
  Array.from(
    data.matchAll(
      new RegExp(`(?=(\\d|${Object.keys(wordsToNumbers).join("|")}))`, "gi"),
    ),
    (x) => x[1],
  );

const replaceWordNumbersToNumbers = (data: string): string =>
  data.replace(
    new RegExp(Object.keys(wordsToNumbers).join("|"), "gi"),
    (match) => String(wordsToNumbers[match]),
  );

const solvePart1 = (data: string): number =>
  data
    .split("\n")
    .filter(Boolean)
    .map(getNumberStringsFromString)
    .map((numbers) => [
      numbers[0],
      numbers[numbers.length - 1],
    ])
    .map(([a, b]) => parseFloat(a + b))
    .reduce((s, v) => s + v);

console.log("Sample:", solvePart1(sample)); // 142
console.log("Input", solvePart1(input)); // 55090

const solvePart2 = (data: string): number =>
  data
    .split("\n")
    .filter(Boolean)
    .map(getNumberStringsAndNumberWordsFromString)
    .map((numbers) => numbers.map(replaceWordNumbersToNumbers))
    .map((numbers) => [
      numbers[0],
      numbers[numbers.length - 1],
    ])
    .map(([a, b]) => parseFloat(a + b))
    .reduce((s, v) => s + v);

console.log("Sample2:", solvePart2(sample2)); //281
console.log("Input", solvePart2(input)); //54845