From e7104941707dc4d509b24b14432fefce6bfa1b90 Mon Sep 17 00:00:00 2001
From: Bas Dado <bas@gametailors.com>
Date: Wed, 1 Dec 2021 23:57:22 +0100
Subject: [PATCH] [TASK] Finished Day 1

---
 functions/.eslintrc.js |  2 +-
 functions/src/day1.ts  | 14 ++++++++++++++
 functions/src/index.ts | 11 ++++++-----
 functions/src/utils.ts |  8 +++-----
 4 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/functions/.eslintrc.js b/functions/.eslintrc.js
index ff21277..527243c 100644
--- a/functions/.eslintrc.js
+++ b/functions/.eslintrc.js
@@ -9,7 +9,7 @@ module.exports = {
     "plugin:import/errors",
     "plugin:import/warnings",
     "plugin:import/typescript",
-    "google",
+    // "google",
     "plugin:@typescript-eslint/recommended",
   ],
   parser: "@typescript-eslint/parser",
diff --git a/functions/src/day1.ts b/functions/src/day1.ts
index 537bc82..a60b608 100644
--- a/functions/src/day1.ts
+++ b/functions/src/day1.ts
@@ -9,6 +9,20 @@ class Day1 {
     }
     return res;
   }
+
+  static part2(input: string[]): number {
+
+    const values = input.map(s => parseInt(s));
+    let res = 0;
+    let previousSum = Math.max(...values) * 3;
+    for (let i = 2; i < values.length; i++) {
+      const sum = values[i - 2] + values[i - 1] + values[i];
+      if (sum > previousSum) res++;
+      previousSum = sum;
+    }
+
+    return res;
+  }
 }
 
 export default Day1;
\ No newline at end of file
diff --git a/functions/src/index.ts b/functions/src/index.ts
index cf2dad3..9b2d5e1 100644
--- a/functions/src/index.ts
+++ b/functions/src/index.ts
@@ -13,22 +13,23 @@ import {Response} from "firebase-functions";
 // });
 
 interface DayResult {
-  part1: any;
-  part2: any;
+  part1: string | number;
+  part2: string | number;
 }
 
 export const day = {
-  1: functions.region('europe-west1').https.onRequest((request, response) => {
+  1: functions.region("europe-west1").https.onRequest((request, response) => {
 
     const input = Utils.parseInput(request);
     const part1 = Day1.part1(input);
+    const part2 = Day1.part2(input);
 
-    sendResponse(response, part1, 0);
+    sendResponse(response, part1, part2);
 
   }),
 }
 
-function sendResponse(response: Response, part1: any, part2: any) {
+function sendResponse(response: Response, part1: string | number, part2: string | number) {
 
   const res: DayResult = { part1, part2 };
   response.send(res);
diff --git a/functions/src/utils.ts b/functions/src/utils.ts
index 961be9d..2b96e5f 100644
--- a/functions/src/utils.ts
+++ b/functions/src/utils.ts
@@ -1,18 +1,16 @@
-import {Request} from "firebase-functions/lib/common/providers/https";
+import { Request } from "firebase-functions";
 
 class Utils {
   static parseInput(request: Request): string[] {
 
     const body = request.body;
-    if (typeof body === 'string') {
-      return body.split('\n');
+    if (typeof body === "string") {
+      return body.split("\n");
     } else if (body.constructor === Array) {
       return body;
     } else {
       throw Error("Invalid request");
     }
-
-
   }
 }