feat: add script to create new day files with templates for solution …

…and tests

script/newDay.ts

@@ -0,0 +1,34 @@
+import { promises as fs } from "fs";
+import path from "path";
+
+const createNewDay = async (day: number) => {
+  const dayString = day.toString().padStart(2, "0");
+  const inputPath = `./inputs/${dayString}.txt`;
+  const solutionPath = `./src/${dayString}.ts`;
+  const testPath = `./test/${dayString}.test.ts`;
+
+  const templateDayPath = path.resolve(__dirname, "./template/day.txt");
+  const templateDayContent = await fs.readFile(templateDayPath, "utf-8");
+  await fs.writeFile(solutionPath, templateDayContent);
+
+  const templateTestPath = path.resolve(__dirname, "./template/test.txt");
+  const templateTestContent = await fs.readFile(templateTestPath, "utf-8");
+  const updatedTestContent = templateTestContent.replace(/{{day}}/g, dayString);
+  await fs.writeFile(testPath, updatedTestContent);
+
+  await fs.writeFile(inputPath, "");
+};
+
+const dayArg = process.argv[2];
+if (!dayArg) {
+  console.error("Please provide a day number as an argument.");
+  process.exit(1);
+}
+
+const day = parseInt(dayArg, 10);
+if (isNaN(day) || day < 1 || day > 25) {
+  console.error("Please provide a valid day number between 1 and 25.");
+  process.exit(1);
+}
+
+createNewDay(day);

script/template/day.txt

@@ -0,0 +1,13 @@
+function solution(input: string): { part1: string; part2: string } {
+  let result1 = 0;
+  let result2 = 0;
+
+  const lines = input.split("\n");
+
+  return {
+    part1: result1.toString(),
+    part2: result2.toString(),
+  };
+}
+
+export default solution;

script/template/test.txt

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+import { expect, test, describe } from "bun:test";
+import solution from "../src/{{day}}";
+
+const EXAMPLE_1 = `1 2 3 4`;
+const RESULT_1 = "2";
+
+const EXAMPLE_2 = EXAMPLE_1;
+const RESULT_2 = "31";
+
+describe("Day 2", () => {
+  test("Part 1", () => {
+    const result = solution(EXAMPLE_1);
+    expect(result.part1).toBe(RESULT_1);
+  });
+
+  test.skip("Part 2", () => {
+    const result = solution(EXAMPLE_2);
+    expect(result.part2).toBe(RESULT_2);
+  });
+});