feat(frontend): migrate file handler service to Typescript, update frontend test framework and lint

jest.config.js

@@ -4,7 +4,11 @@ module.exports = {
   modulePaths: ['<rootDir>'],
   testEnvironment: 'node',
   globalSetup: '<rootDir>/tests/jest-global-setup.js',
-  testPathIgnorePatterns: ['<rootDir>/dist/', '<rootDir>/node_modules/'],
+  testPathIgnorePatterns: [
+    '<rootDir>/dist/',
+    '<rootDir>/node_modules/',
+    '<rootDir>/src/public',
+  ],
   collectCoverageFrom: ['./src/**/*.{ts,js}', '!**/__tests__/**'],
   coveragePathIgnorePatterns: ['./node_modules/', './tests'],
   coverageReporters: ['lcov', 'text'],

package.json

@@ -104,7 +104,6 @@
     "convict": "^6.0.0",
     "convict-format-with-validator": "^6.0.0",
     "cookie-parser": "~1.4.0",
-    "crypto-js": "^4.0.0",
     "css-toggle-switch": "^4.1.0",
     "csv-string": "^4.0.1",
     "dedent-js": "~1.0.1",
@@ -148,6 +147,7 @@
     "selectize": "0.12.6",
     "slick-carousel": "1.8.1",
     "sortablejs": "~1.13.0",
+    "spark-md5": "^3.0.1",
     "text-encoding": "^0.7.0",
     "toastr": "^2.1.4",
     "triple-beam": "^1.3.0",
@@ -193,6 +193,7 @@
     "@types/opossum": "^4.1.1",
     "@types/promise-retry": "^1.1.3",
     "@types/puppeteer-core": "^5.4.0",
+    "@types/spark-md5": "^3.0.2",
     "@types/supertest": "^2.0.10",
     "@types/triple-beam": "^1.3.2",
     "@types/uid-generator": "^2.0.2",
@@ -228,6 +229,7 @@
     "jasmine-sinon": "^0.4.0",
     "jasmine-spec-reporter": "^6.0.0",
     "jest": "^26.6.3",
+    "jest-mock-axios": "^4.3.0",
     "lint-staged": "^10.5.4",
     "maildev": "^1.1.0",
     "mini-css-extract-plugin": "^0.5.0",

src/public/.eslintrc

@@ -4,26 +4,103 @@
     "commonjs": true,
     "jquery": true
   },
-  "extends": ["plugin:angular/johnpapa"],
-  "globals": {
-    "angular": true
-  },
   "parserOptions": {
     "ecmaVersion": 2018
   },
-  "rules": {
-    "angular/controller-name": 1,
-    "angular/controller-as-route": 1,
-    "angular/controller-as": 1,
-    "angular/window-service": 1,
-    "angular/module-getter": 1,
-    "angular/no-run-logic": 1,
-    "angular/module-setter": 1,
-    "angular/file-name": "off",
-    "angular/function-type": 2,
-    "angular/document-service": 1,
-    "angular/timeout-service": 1,
-    "angular/interval-service": 1,
-    "angular/no-service-method": 0
-  }
+  "overrides": [
+    {
+      "files": ["*.js"],
+      "extends": ["plugin:angular/johnpapa"],
+      "globals": {
+        "angular": true
+      },
+      "rules": {
+        "angular/controller-name": 1,
+        "angular/controller-as-route": 1,
+        "angular/controller-as": 1,
+        "angular/window-service": 1,
+        "angular/module-getter": 1,
+        "angular/no-run-logic": 1,
+        "angular/module-setter": 1,
+        "angular/file-name": "off",
+        "angular/function-type": 2,
+        "angular/document-service": 1,
+        "angular/timeout-service": 1,
+        "angular/interval-service": 1,
+        "angular/no-service-method": 0
+      }
+    },
+    {
+      "files": ["*.ts"],
+      "parser": "@typescript-eslint/parser",
+      "parserOptions": {
+        "sourceType": "module",
+        "ecmaFeatures": {
+          "modules": true
+        },
+        "project": "../../tsconfig.json"
+      },
+      "plugins": [
+        "@typescript-eslint",
+        "import",
+        "simple-import-sort",
+        "typesafe"
+      ],
+      "extends": ["plugin:@typescript-eslint/recommended"],
+      "rules": {
+        // Rules for auto sort of imports
+        "simple-import-sort/imports": [
+          "error",
+          {
+            "groups": [
+              // Side effect imports.
+              ["^\\u0000"],
+              // Packages.
+              // Things that start with a letter (or digit or underscore), or
+              // `@` followed by a letter.
+              ["^@?\\w"],
+              // Root imports
+              ["^(src)(/.*|$)"],
+              ["^(tests)(/.*|$)"],
+              // Parent imports. Put `..` last.
+              ["^\\.\\.(?!/?$)", "^\\.\\./?$"],
+              // Other relative imports. Put same-folder imports and `.` last.
+              ["^\\./(?=.*/)(?!/?$)", "^\\.(?!/?$)", "^\\./?$"]
+            ]
+          }
+        ],
+        "sort-imports": "off",
+        "import/order": "off",
+        "import/first": "error",
+        "import/newline-after-import": "error",
+        "import/no-duplicates": "error",
+        "@typescript-eslint/no-floating-promises": 2,
+        "@typescript-eslint/no-unused-vars": 2,
+        "typesafe/no-throw-sync-func": "error"
+      }
+    },
+    {
+      "files": ["*.test.ts"],
+      "extends": ["plugin:jest/recommended"],
+      "rules": {
+        "typesafe/no-await-without-trycatch": 0
+      }
+    },
+    {
+      "files": ["*.ts", "*.js"],
+      "excludedFiles": ["**/*.test.ts", "**/.test.js"],
+      "rules": {
+        "typesafe/no-await-without-trycatch": "warn"
+      }
+    },
+    {
+      "files": ["**/__mocks__/*.js"],
+      "parserOptions": {
+        "sourceType": "module",
+        "ecmaFeatures": {
+          "modules": true
+        }
+      }
+    }
+  ]
 }

src/public/main.js

@@ -260,7 +260,6 @@ require('./modules/forms/config/forms.client.routes.js')
 require('./modules/forms/services/form-feedback.client.factory.js')
 require('./modules/forms/services/form-fields.client.service.js')
 require('./modules/forms/services/form-factory.client.service.js')
-require('./modules/forms/services/file-handler.client.service.js')
 require('./modules/forms/services/form-api.client.factory.js')
 require('./modules/forms/services/form-error.client.factory.js')
 require('./modules/forms/services/spcp-session.client.factory.js')

src/public/modules/forms/admin/controllers/edit-fields-modal.client.controller.js

@@ -1,12 +1,16 @@
 'use strict'
 
+const axios = require('axios').default
 const values = require('lodash/values')
 
 const {
   EditFieldActions,
   VALID_UPLOAD_FILE_TYPES,
   MAX_UPLOAD_FILE_SIZE,
 } = require('shared/constants')
+const { uploadImage } = require('../../../../services/FileHandlerService')
+
+const CancelToken = axios.CancelToken
 
 const DATE_VALIDATION_OPTIONS = {
   disallowPast: 'Disallow past dates',
@@ -26,7 +30,6 @@ angular
     'Rating',
     'Attachment',
     'FormFields',
-    'FileHandler',
     '$q',
     'Betas',
     'Auth',
@@ -42,12 +45,12 @@ function EditFieldsModalController(
   Rating,
   Attachment,
   FormFields,
-  FileHandler,
   $q,
   Betas,
   Auth,
   $state,
 ) {
+  let source
   const vm = this
 
   // Copy so as to not touch the original
@@ -522,7 +525,13 @@ function EditFieldsModalController(
 
   vm.beforeResizing = () => {
     vm.uploading = true
-    vm.shouldCancelUpload = $q.defer() // Will cancel the upload on resolve
+    vm.cancelUpload()
+  }
+
+  vm.cancelUpload = () => {
+    if (source) {
+      source.cancel()
+    }
   }
 
   /**
@@ -551,12 +560,16 @@ function EditFieldsModalController(
       }
     } else if (image) {
       vm.uploadError = null
-
-      FileHandler.uploadImage(
-        image,
-        vm.myform._id,
-        vm.shouldCancelUpload.promise,
-      )
+      source = CancelToken.source()
+
+      return $q
+        .when(
+          uploadImage({
+            image,
+            formId: vm.myform._id,
+            cancelToken: source.token,
+          }),
+        )
         .then((result) => {
           field.url = result.url
           field.fileMd5Hash = result.fileMd5Hash
@@ -568,12 +581,12 @@ function EditFieldsModalController(
           // On error, we explicitly clear the files stored in the model, as the library does not always automatically do this
           field.uploadedFile = ''
 
-          if (uploadError.xhrStatus === 'abort') {
+          if (axios.isCancel(uploadError)) {
             vm.uploadError = `Upload cancelled. Please try again!`
-            return
+          } else {
+            console.error(uploadError)
+            vm.uploadError = 'Upload error. Please try again!'
           }
-          console.error(uploadError)
-          vm.uploadError = 'Upload error. Please try again!'
         })
         .finally(() => {
           vm.uploading = false