From 26be46cdf3f68e5114b5304f9634d678c0c324df Mon Sep 17 00:00:00 2001
From: Daniel Heras Quesada <dani.heras@hotmail.com>
Date: Sun, 14 Dec 2025 18:04:44 +0100
Subject: [PATCH] feat(day_10): file read and base done

---
 README.md                                  |  5 +-
 src/__tests__/day_10_test.ts               | 13 ++++
 src/exercises/assets/day_10_test_input.txt |  3 +
 src/exercises/day_10.ts                    | 87 ++++++++++++++++++++++
 4 files changed, 106 insertions(+), 2 deletions(-)
 create mode 100644 src/__tests__/day_10_test.ts
 create mode 100644 src/exercises/assets/day_10_test_input.txt
 create mode 100644 src/exercises/day_10.ts

diff --git a/README.md b/README.md
index f34b07b..54abf69 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@
 |  4  | Printing Department |   ⭐   |   ⭐   |
 |  5  | Cafeteria           |   ⭐   |   ⭐   |
 |  6  | Trash Compactor     |   ⭐   |   ⭐   |
-|  7  | Laboratories        |   ⭐   |        |
+|  7  | Laboratories        |   ⭐   |   🌓   |
 |  8  | Playground          |   ⭐   |   ⭐   |
-|  9  | Movie Theater       |   ⭐   |        |
+|  9  | Movie Theater       |   ⭐   |   🌓   |
+|  10 | Factory             |        |        |
diff --git a/src/__tests__/day_10_test.ts b/src/__tests__/day_10_test.ts
new file mode 100644
index 0000000..f2afea5
--- /dev/null
+++ b/src/__tests__/day_10_test.ts
@@ -0,0 +1,13 @@
+import { assertEquals } from "@std/assert";
+import {
+  count_min_button_presses,
+  read_machine_manuals,
+} from "../exercises/day_10.ts";
+
+Deno.test("Day 10 - A", async () => {
+  const manual_list = await read_machine_manuals(
+    "src/exercises/assets/day_10_test_input.txt",
+  );
+  const result = count_min_button_presses(manual_list);
+  assertEquals(result, 7);
+});
diff --git a/src/exercises/assets/day_10_test_input.txt b/src/exercises/assets/day_10_test_input.txt
new file mode 100644
index 0000000..dd91d7b
--- /dev/null
+++ b/src/exercises/assets/day_10_test_input.txt
@@ -0,0 +1,3 @@
+[.##.] (3) (1,3) (2) (2,3) (0,2) (0,1) {3,5,4,7}
+[...#.] (0,2,3,4) (2,3) (0,4) (0,1,2) (1,2,3,4) {7,5,12,7,2}
+[.###.#] (0,1,2,3,4) (0,3,4) (0,1,2,4,5) (1,2) {10,11,11,5,10,5}
diff --git a/src/exercises/day_10.ts b/src/exercises/day_10.ts
new file mode 100644
index 0000000..c06008c
--- /dev/null
+++ b/src/exercises/day_10.ts
@@ -0,0 +1,87 @@
+enum Indicator {
+  ON = "#",
+  OFF = ".",
+}
+
+type ButtonWiring = number[];
+type Joltage = number;
+
+interface MachineManual {
+  indicators: Indicator[];
+  button_wirings: ButtonWiring[];
+  joltage_requirements: Joltage[];
+}
+
+export default async function Factory() {
+}
+
+export function count_min_button_presses(manuals: MachineManual[]): number {
+  let total_sum = 0;
+  manuals.forEach((manual) => {
+    const wiring_list = manual.button_wirings;
+
+    let min_presses = Infinity;
+    wiring_list.forEach((wiring, wiring_i) => {
+      let current_indicator = manual.indicators.map((i) => i); // Clone the indicator
+      current_indicator = apply_wiring_to_indicators(wiring, current_indicator);
+
+      if (current_indicator.join("") === manual.indicators.join("")) {
+        min_presses = 1;
+        return;
+      }
+
+      for (
+        let inner_i = wiring_i + 1;
+        inner_i < wiring_list.length;
+        inner_i++
+      ) {
+        current_indicator = apply_wiring_to_indicators(
+          wiring_list[wiring_i],
+          current_indicator,
+        );
+      }
+    });
+
+    total_sum += min_presses;
+  });
+}
+
+function apply_wiring_to_indicators(
+  wiring: ButtonWiring,
+  indicator: Indicator[],
+): Indicator[] {
+  return indicator.map((w, i) =>
+    wiring.includes(i) ? w === Indicator.ON ? Indicator.OFF : Indicator.ON : w
+  );
+}
+
+export async function read_machine_manuals(
+  path: string,
+): Promise<MachineManual[]> {
+  const line_regex = /\[([.#]+)\] (.*)+ \{(.*)\}/g;
+  const input_txt = await Deno.readTextFile(path);
+  const lines = input_txt.split("\n");
+
+  const manual_list: MachineManual[] = lines.map((line) => {
+    const matched_line = line.matchAll(line_regex)?.toArray()?.[0];
+    if (matched_line && matched_line.length > 3) {
+      const indicators = matched_line[1].toString().split("").map((ch) =>
+        ch === Indicator.ON ? Indicator.ON : Indicator.OFF
+      );
+      const buttons = matched_line[2].split(" ").map((b) =>
+        b.replaceAll("(", "").replaceAll(")", "").split(",").map((n) =>
+          parseInt(n)
+        )
+      );
+      const joltages = matched_line[3].split(",").map((j) => parseInt(j));
+      return {
+        indicators,
+        button_wirings: buttons,
+        joltage_requirements: joltages,
+      };
+    }
+    return null;
+  }).filter((v) => v !== null);
+
+  return manual_list;
+}