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

.firebaserc

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+{
+  "projects": {
+    "default": "advent-of-code-2021-911a8"
+  }
+}

.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+firebase-debug.log*
+firebase-debug.*.log*
+
+# Firebase cache
+.firebase/
+
+# Firebase config
+
+# Uncomment this if you'd like others to create their own Firebase project.
+# For a team working on the same Firebase project(s), it is recommended to leave
+# it commented so all members can deploy to the same project(s) in .firebaserc.
+# .firebaserc
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/advent-of-code-2021-firebase.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/temp" />
+      <excludeFolder url="file://$MODULE_DIR$/.tmp" />
+      <excludeFolder url="file://$MODULE_DIR$/tmp" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/modules.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/advent-of-code-2021-firebase.iml" filepath="$PROJECT_DIR$/.idea/advent-of-code-2021-firebase.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

firebase.json

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+{
+  "functions": {
+    "predeploy": [
+      "npm --prefix \"$RESOURCE_DIR\" run lint",
+      "npm --prefix \"$RESOURCE_DIR\" run build"
+    ]
+  }
+}

functions/.eslintrc.js

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+module.exports = {
+  root: true,
+  env: {
+    es6: true,
+    node: true,
+  },
+  extends: [
+    "eslint:recommended",
+    "plugin:import/errors",
+    "plugin:import/warnings",
+    "plugin:import/typescript",
+    "google",
+    "plugin:@typescript-eslint/recommended",
+  ],
+  parser: "@typescript-eslint/parser",
+  parserOptions: {
+    project: ["tsconfig.json", "tsconfig.dev.json"],
+    sourceType: "module",
+  },
+  ignorePatterns: [
+    "/lib/**/*", // Ignore built files.
+  ],
+  plugins: [
+    "@typescript-eslint",
+    "import",
+  ],
+  rules: {
+    "quotes": ["error", "double"],
+    "import/no-unresolved": 0,
+  },
+};

functions/.gitignore

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+# Compiled JavaScript files
+lib/**/*.js
+lib/**/*.js.map
+
+# TypeScript v1 declaration files
+typings/
+
+# Node.js dependency directory
+node_modules/

functions/package.json

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+{
+  "name": "functions",
+  "scripts": {
+    "lint": "eslint --ext .js,.ts .",
+    "build": "tsc",
+    "serve": "npm run build && firebase emulators:start --only functions",
+    "shell": "npm run build && firebase functions:shell",
+    "start": "npm run shell",
+    "deploy": "firebase deploy --only functions",
+    "logs": "firebase functions:log"
+  },
+  "engines": {
+    "node": "16"
+  },
+  "main": "lib/index.js",
+  "dependencies": {
+    "firebase-admin": "^9.8.0",
+    "firebase-functions": "^3.14.1"
+  },
+  "devDependencies": {
+    "@typescript-eslint/eslint-plugin": "^3.9.1",
+    "@typescript-eslint/parser": "^3.8.0",
+    "eslint": "^7.6.0",
+    "eslint-config-google": "^0.14.0",
+    "eslint-plugin-import": "^2.22.0",
+    "firebase-functions-test": "^0.2.0",
+    "typescript": "^3.8.0"
+  },
+  "private": true
+}

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;

functions/tsconfig.dev.json

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+{
+  "include": [
+    ".eslintrc.js"
+  ]
+}

functions/tsconfig.json

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+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "noImplicitReturns": true,
+    "noUnusedLocals": true,
+    "outDir": "lib",
+    "sourceMap": true,
+    "strict": true,
+    "target": "es2017"
+  },
+  "compileOnSave": true,
+  "include": [
+    "src"
+  ]
+}

input/day/1-example.http

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+POST http://localhost:5001/advent-of-code-2021-911a8/europe-west1/day-1
+Content-Type: text/plain
+
+199
+200
+208
+210
+200
+207
+240
+269
+260
+263
+
+###