Add backend firebase function and fix search page parsing

.firebaserc

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+{
+  "projects": {
+    "default": "doctolib-reviews-4807a"
+  }
+}

.gitignore

@@ -2,3 +2,4 @@
 releases/
 assets/
 ressources/
+*.DS_Store

firebase.json

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+{
+  "functions": [
+    {
+      "source": "functions",
+      "codebase": "default",
+      "ignore": [
+        "node_modules",
+        ".git",
+        "firebase-debug.log",
+        "firebase-debug.*.log"
+      ],
+      "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,
+    "indent": ["error", 2],
+  },
+};

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/
+
+# debug files
+firebase-debug.log
+
+# env files
+.env.*

functions/package.json

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+{
+  "name": "functions",
+  "scripts": {
+    "lint": "eslint --ext .js,.ts .",
+    "build": "tsc",
+    "build:watch": "tsc --watch",
+    "serve": "npm run build && firebase emulators:start --only functions",
+    "shell": "npm run build && firebase functions:shell",
+    "setapikey": "firebase functions:config:set google.api_key=$GOOGLE_API_KEY",
+    "start": "npm run shell",
+    "deploy": "firebase deploy --only functions",
+    "logs": "firebase functions:log"
+  },
+  "engines": {
+    "node": "18"
+  },
+  "main": "lib/index.js",
+  "dependencies": {
+    "axios": "^1.6.2",
+    "firebase-admin": "^11.8.0",
+    "firebase-functions": "^4.3.1",
+    "node-fetch": "^3.3.2"
+  },
+  "devDependencies": {
+    "@typescript-eslint/eslint-plugin": "^5.12.0",
+    "@typescript-eslint/parser": "^5.12.0",
+    "eslint": "^8.9.0",
+    "eslint-config-google": "^0.14.0",
+    "eslint-plugin-import": "^2.25.4",
+    "firebase-functions-test": "^3.1.0",
+    "typescript": "^4.9.0"
+  },
+  "private": true
+}

functions/src/index.ts

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+import {onRequest} from "firebase-functions/v2/https";
+import * as logger from "firebase-functions/logger";
+import axios from "axios";
+
+// We are using defineString instead of defineSecret because
+// of an issue with the google cloud IAM authorizations.
+// eslint-disable-next-line @typescript-eslint/no-var-requires
+const {defineString} = require("firebase-functions/params");
+
+
+const findPlaceFromTextUrl = "https://maps.googleapis.com/maps/api/place/findplacefromtext/json";
+
+const GoogleMapsAPIKey = defineString("GOOGLE_API_KEY");
+
+export const getDoctorRating = onRequest(async (request, response) => {
+  const {name, address} = request.query;
+
+  if (!name) {
+    response.status(400).send("Missing name parameter");
+    return;
+  }
+
+  const url = new URL(findPlaceFromTextUrl);
+
+  const params = new URLSearchParams({
+    input: `${name} ${address}`,
+    inputtype: "textquery",
+    fields: "place_id,name,rating,formatted_address",
+    key: GoogleMapsAPIKey.value(),
+  });
+
+  url.search = params.toString();
+
+  try {
+    const apiResponse = await axios.get(url.toString());
+    const data = apiResponse.data;
+    response.set("Access-Control-Allow-Origin", "https://www.doctolib.fr");
+    response.send(data);
+  } catch (error) {
+    logger.error("Error:", error);
+    response.status(500).send("Internal server error");
+  }
+});

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"
+  ]
+}