Initial in-app survey implementation

Signed-off-by: Lauri Nevala <lauri.nevala@gmail.com>

extensions/survey/package.json

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+{
+  "name": "lens-survey",
+  "version": "0.1.0",
+  "description": "Lens survey",
+  "renderer": "dist/renderer.js",
+  "lens": {
+    "metadata": {},
+    "styles": []
+  },
+  "scripts": {
+    "build": "webpack -p",
+    "dev": "webpack --watch",
+    "test": "jest --passWithNoTests --env=jsdom src $@"
+  },
+  "dependencies": {},
+  "devDependencies": {
+    "@k8slens/extensions": "file:../../src/extensions/npm/extensions",
+    "jest": "^26.6.3",
+    "node-machine-id": "^1.1.12",
+    "react": "^16.13.1",
+    "refiner-js": "^1.0.1",
+    "ts-loader": "^8.0.4",
+    "typescript": "^4.0.3",
+    "webpack": "^4.44.2"
+  }
+}

extensions/survey/renderer.tsx

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+import { LensRendererExtension } from "@k8slens/extensions";
+import { survey } from "./src/survey";
+
+export default class SurveyRendererExtension extends LensRendererExtension {
+  async onActivate() {
+    survey.start();
+  }
+}

extensions/survey/src/refiner-js.d.ts

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+declare module "refiner-js" {
+  export default function Refiner(key: string, value: string|object|number|Boolean|Array): void;
+}

extensions/survey/src/survey.ts

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+import { Util } from "@k8slens/extensions";
+import { machineIdSync } from "node-machine-id";
+import Refiner from "refiner-js";
+
+export class Survey extends Util.Singleton {
+  static readonly PROJECT_ID = "12a3b8f0-4f5e-11eb-84d0-212af0117cc2";
+  protected anonymousId: string;
+
+  private constructor() {
+    super();
+    this.anonymousId = machineIdSync();
+  }
+
+  start() {
+    Refiner("setProject", Survey.PROJECT_ID);
+    Refiner("identifyUser", {
+      id: this.anonymousId,
+    });
+  }
+}
+
+export const survey = Survey.getInstance<Survey>();

extensions/survey/tsconfig.json

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+{
+  "compilerOptions": {
+    "outDir": "dist",
+    "baseUrl": ".",
+    "module": "CommonJS",
+    "target": "ES2017",
+    "lib": ["ESNext", "DOM", "DOM.Iterable"],
+    "moduleResolution": "Node",
+    "sourceMap": false,
+    "declaration": false,
+    "strict": false,
+    "noImplicitAny": true,
+    "skipLibCheck": true,
+    "esModuleInterop": true,
+    "allowSyntheticDefaultImports": true,
+    "experimentalDecorators": true,
+    "jsx": "react",
+    "paths": {
+      "*": [
+        "node_modules/*",
+        "../../types/*"
+      ]
+    }
+  },
+  "include": [
+    "renderer.ts",
+    "src/**/*"
+  ]
+}

extensions/survey/webpack.config.js

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+const path = require("path");
+
+module.exports = [
+  {
+    entry: "./renderer.tsx",
+    context: __dirname,
+    target: "electron-renderer",
+    mode: "production",
+    module: {
+      rules: [
+        {
+          test: /\.tsx?$/,
+          use: "ts-loader",
+          exclude: /node_modules/,
+        },
+      ],
+    },
+    externals: [
+      {
+        "@k8slens/extensions": "var global.LensExtensions",
+        "react": "var global.React",
+        "mobx": "var global.Mobx",
+        "mobx-react": "var global.MobxReact"
+      }
+    ],
+    resolve: {
+      extensions: [ ".tsx", ".ts", ".js" ],
+    },
+    output: {
+      libraryTarget: "commonjs2",
+      globalObject: "this",
+      filename: "renderer.js",
+      path: path.resolve(__dirname, "dist"),
+    },
+  },
+];