Merge branch '2022-08'

.prettierignore

@@ -5,3 +5,4 @@ sample
 input
 *.t
 *.pm
+*.ejs

2022/08/part1.js

@@ -0,0 +1,89 @@
+import * as R from "remeda";
+import { readFile } from "../05/part1.js";
+import Victor from "@a-robu/victor";
+
+const V = (...args) => new Victor(...args);
+
+const readInput = (...args) =>
+  readFile(...args)
+    .split("\n")
+    .filter((x) => x)
+    .map((l) => l.split("").map((x) => parseInt(x)));
+
+export const outOfBound = (size) => (pos) => {
+  if (Math.min(pos.x, pos.y) < 0) return true;
+  if (Math.max(pos.x, pos.y) >= size) return true;
+  return false;
+};
+
+export function generateVisibilityGrid(forest) {
+  const size = forest.length;
+  const visibility = Array(size)
+    .fill(null)
+    .map(() => Array(size).fill(false));
+
+  // top
+  const positions = R.range(size)(0).map((x) => ({
+    height: -1,
+    position: V(x, -1),
+    inc: V(0, 1),
+  }));
+
+  // bottom
+  positions.push(
+    ...R.range(size)(0).map((x) => ({
+      height: -1,
+      position: V(x, size),
+      inc: V(0, -1),
+    }))
+  );
+
+  positions.push(
+    ...R.range(size)(0).map((x) => ({
+      height: -1,
+      position: V(-1, x),
+      inc: V(1, 0),
+    }))
+  );
+  positions.push(
+    ...R.range(size)(0).map((x) => ({
+      height: -1,
+      position: V(size, x),
+      inc: V(-1, 0),
+    }))
+  );
+
+  while (positions.length) {
+    const pos = positions.shift();
+    pos.position.add(pos.inc);
+
+    if (outOfBound(size)(pos.position)) continue;
+
+    if (forest[pos.position.x][pos.position.y] > pos.height) {
+      visibility[pos.position.x][pos.position.y] = true;
+      pos.height = forest[pos.position.x][pos.position.y];
+    }
+
+    positions.push(pos);
+  }
+
+  return visibility;
+}
+
+export const puzzleInput = readInput(import.meta.url, "input");
+export const sample = readInput(import.meta.url, "sample");
+
+export const passthru = (func) => (arg) => {
+  func(arg);
+  return arg;
+};
+
+export const printMap = passthru((forest) =>
+  forest.forEach((line) => console.log(line.join(" ")))
+);
+
+export default R.createPipe(
+  generateVisibilityGrid,
+  R.flatten,
+  R.countBy(R.identity)
+);

2022/08/part2.js

@@ -0,0 +1,40 @@
+import * as R from "remeda";
+import Victor from "@a-robu/victor";
+
+import { outOfBound } from "./part1";
+
+const V = (...args) => new Victor(...args);
+
+function visibility(forest, x, y, dx, dy) {
+  const pos = V(x, y);
+  const inc = V(dx, dy);
+
+  let vis = 0;
+
+  while (true) {
+    pos.add(inc);
+    if (outOfBound(forest.length)(pos)) return vis;
+
+    if (forest[x][y] <= forest[pos.x][pos.y]) return 1 + vis;
+    vis++;
+  }
+}
+
+const visibilityAround = (forest) => (x, y) =>
+  [
+    [0, 1],
+    [0, -1],
+    [1, 0],
+    [-1, 0],
+  ]
+    .map((d) => visibility(forest, x, y, ...d))
+    .reduce((a, b) => a * b);
+
+export default R.createPipe(
+  (forest) => {
+    const va = visibilityAround(forest);
+    return forest.map((l, x) => l.map((_, y) => va(x, y)));
+  },
+  R.flatten,
+  R.maxBy(R.identity)
+);

2022/08/sample

@@ -0,0 +1,5 @@
+30373
+25512
+65332
+33549
+35390

2022/08/test.js

@@ -0,0 +1,25 @@
+import { test, expect, describe } from "vitest";
+
+import { expectSolution } from "../01/main.js";
+import part1, { sample, puzzleInput } from "./part1.js";
+import part2 from "./part2.js";
+
+describe("part 1", () => {
+  test("sample", () => {
+    expect(part1(sample)).toBe(21);
+  });
+  test("solution", () => {
+    expectSolution(part1(puzzleInput)).toEqual(1703);
+  });
+});
+
+describe("part 2", () => {
+  test("sample", () => {
+    expect(part2(sample)).toBe(8);
+  });
+  test("solution", () => {
+    const solution = part2(puzzleInput);
+    expect(solution).toBeGreaterThan(160);
+    expectSolution(solution).toEqual(496650);
+  });
+});

2022/template/part1.js

@@ -1 +0,0 @@
-import * as R from "remeda";

2022/template/part2.js

@@ -1 +0,0 @@
-import * as R from "remeda";

Taskfile.yaml

@@ -6,6 +6,8 @@ vars:
   YEAR: 2022
   DAY:
     sh: date '+%d' | perl -pe's/^0//'
+  DAY_FORMATTED:
+    sh: date '+%d'
   GREETING: Hello, World!
 
 tasks:
@@ -25,6 +27,10 @@ tasks:
     cmds:
       - firefox https://adventofcode.com/{{.YEAR}}/day/{{.DAY}}
 
+  download:
+    cmds:
+      - aoc download -d {{.DAY}} -o -p 2022/{{.DAY_FORMATTED}}/puzzle.md -i 2022/{{.DAY_FORMATTED}}/input
+
   default:
     cmds:
       - echo "{{.GREETING}}"

_templates/day/new/hello.ejs.t

@@ -0,0 +1,15 @@
+---
+to: app/hello.js
+---
+const hello = ```
+Hello!
+This is your first hygen template.
+
+Learn what it can do here:
+
+https://github.com/jondot/hygen
+```
+
+console.log(hello)
+
+

_templates/day/new/part1.ejs

@@ -0,0 +1,16 @@
+---
+to: 2022/<%= day %>/part1.js
+---
+import * as R from "remeda";
+
+import { readFile } from "../05/part1.js";
+
+const readInput = (...args) =>
+  readFile(...args)
+    .split("\n")
+    .filter((x) => x);
+
+export const puzzleInput = readInput(import.meta.url, "input");
+export const sample = readInput(import.meta.url, "sample");
+
+export default = () => {};

_templates/day/new/part2.ejs

@@ -0,0 +1,7 @@
+---
+to: 2022/<%= day %>/part2.js
+---
+import * as R from "remeda";
+
+
+export default = () => {};

_templates/day/new/prompt.js

@@ -0,0 +1,7 @@
+module.exports = [
+  {
+    type: 'input',
+    name: 'day',
+    message: "advent day?"
+  }
+]

_templates/day/new/test.ejs

@@ -1,17 +1,20 @@
+---
+to: 2022/<%= day %>/test.js
+---
 import { test, expect, describe } from "vitest";
 
 import { expectSolution } from "../01/main.js";
-import { solutionPart1, puzzleInput } from "./part1.js";
-import { solutionPart2 } from "./part2.js";
+import part1, { sample, puzzleInput } from "./part1.js";
+import part2 from "./part2.js";
 
 describe("part 1", () => {
   test.todo("solution", () => {
-    expectSolution(solutionPart1(puzzleInput)).toEqual("TODO");
+    expectSolution(part1(puzzleInput)).toEqual("TODO");
   });
 });
 
 describe("part 2", () => {
   test.todo("solution", () => {
-    expectSolution(solutionPart2(puzzleInput)).toEqual("TODO");
+    expectSolution(part2(puzzleInput)).toEqual("TODO");
   });
 });

_templates/generator/help/index.ejs.t

@@ -0,0 +1,5 @@
+---
+message: |
+  hygen {bold generator new} --name [NAME] --action [ACTION]
+  hygen {bold generator with-prompt} --name [NAME] --action [ACTION]
+---

_templates/generator/new/hello.ejs.t

@@ -0,0 +1,18 @@
+---
+to: _templates/<%= name %>/<%= action || 'new' %>/hello.ejs.t
+---
+---
+to: app/hello.js
+---
+const hello = ```
+Hello!
+This is your first hygen template.
+
+Learn what it can do here:
+
+https://github.com/jondot/hygen
+```
+
+console.log(hello)
+
+

_templates/generator/with-prompt/hello.ejs.t

@@ -0,0 +1,18 @@
+---
+to: _templates/<%= name %>/<%= action || 'new' %>/hello.ejs.t
+---
+---
+to: app/hello.js
+---
+const hello = ```
+Hello!
+This is your first prompt based hygen template.
+
+Learn what it can do here:
+
+https://github.com/jondot/hygen
+```
+
+console.log(hello)
+
+

_templates/generator/with-prompt/prompt.ejs.t

@@ -0,0 +1,14 @@
+---
+to: _templates/<%= name %>/<%= action || 'new' %>/prompt.js
+---
+
+// see types of prompts:
+// https://github.com/enquirer/enquirer/tree/master/examples
+//
+module.exports = [
+  {
+    type: 'input',
+    name: 'message',
+    message: "What's your message?"
+  }
+]

_templates/init/repo/new-repo.ejs.t

@@ -0,0 +1,4 @@
+---
+setup: <%= name %>
+force: true # this is because mostly, people init into existing folders is safe
+---

package.json

@@ -10,8 +10,10 @@
   "author": "Yanick Champoux <yanick@babyl.ca> (http://techblog.babyl.ca/)",
   "license": "ISC",
   "dependencies": {
+    "@a-robu/victor": "^2.2.2",
     "debug": "^4.3.4",
     "fs-extra": "^11.1.0",
+    "memoizerific": "^1.11.3",
     "prettier": "^2.8.0",
     "remeda": "^1.3.0",
     "vitest": "^0.25.3"