[TASK] Initial commit: basic firebase setup and part 1 almost solved (of-by-one)

functions/src/day1.ts

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+
+class Day1 {
+  static part1(input: string[]): number {
+
+    let res = 0;
+    for (let i = 1; i < input.length; i++) {
+      if (input[i] > input[i-1]) res++;
+    }
+    return res;
+  }
+}
+
+export default Day1;

functions/src/index.ts

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+import * as functions from "firebase-functions";
+import Utils from "./utils";
+import Day1 from "./day1";
+import {Response} from "firebase-functions";
+
+
+// // Start writing Firebase Functions
+// // https://firebase.google.com/docs/functions/typescript
+//
+// export const helloWorld = functions.https.onRequest((request, response) => {
+//   functions.logger.info("Hello logs!", {structuredData: true});
+//   response.send("Hello from Firebase!");
+// });
+
+interface DayResult {
+  part1: any;
+  part2: any;
+}
+
+export const day = {
+  1: functions.region('europe-west1').https.onRequest((request, response) => {
+
+    const input = Utils.parseInput(request);
+    const part1 = Day1.part1(input);
+
+    sendResponse(response, part1, 0);
+
+  }),
+}
+
+function sendResponse(response: Response, part1: any, part2: any) {
+
+  const res: DayResult = { part1, part2 };
+  response.send(res);
+}

functions/src/utils.ts

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+import {Request} from "firebase-functions/lib/common/providers/https";
+
+class Utils {
+  static parseInput(request: Request): string[] {
+
+    const body = request.body;
+    if (typeof body === 'string') {
+      return body.split('\n');
+    } else if (body.constructor === Array) {
+      return body;
+    } else {
+      throw Error("Invalid request");
+    }
+
+
+  }
+}
+
+export default Utils;