Improve desktop security by isolating Electron

Enable `contextIsolation` in Electron to securely expose a limited set
of Node.js APIs to the renderer process. It:

1. Isolates renderer and main process contexts. It ensures that the
   powerful main process functions aren't directly accessible from
   renderer process(es), adding a security boundary.
2. Mitigates remote exploitation risks. By isolating contexts, potential
   malicious code injections in the renderer can't directly reach and
   compromise the main process.
3. Reduces attack surface.
4. Protect against prototype pollution: It prevents tampering of
   JavaScript object prototypes in one context from affecting another
   context, improving app reliability and security.

Supporting changes include:

- Extract environment and system operations classes to the infrastructure
  layer. This removes node dependencies from core domain and application
  code.
- Introduce `ISystemOperations` to encapsulate OS interactions. Use it
  from `CodeRunner` to isolate node API usage.
- Add a preloader script to inject validated environment variables into
  renderer context. This keeps Electron integration details
  encapsulated.
- Add new sanity check to fail fast on issues with preloader injected
  variables.
- Improve test coverage of runtime sanity checks and environment
  components. Move validation logic into separate classes for Single
  Responsibility.
- Improve absent value test case generation.

.eslintignore

@@ -1 +1,2 @@
-dist/
+dist/
+dist_electron/

.eslintrc.cjs

@@ -6,10 +6,10 @@ module.exports = {
   root: true,
   env: {
     node: true,
+    es2022: true, // add globals and sets parserOptions.ecmaVersion to 2022
   },
   extends: [
     // Vue specific rules, eslint-plugin-vue
-    // Added by Vue CLI
     'plugin:vue/essential',
 
     // Extends eslint-config-airbnb
@@ -17,42 +17,14 @@ module.exports = {
 
     // Extends @typescript-eslint/recommended
     // Uses the recommended rules from the @typescript-eslint/eslint-plugin
-    // Added by Vue CLI
     '@vue/typescript/recommended',
   ],
-  parserOptions: {
-    ecmaVersion: 12, // ECMA 2021
-    /*
-      Having 'latest' leads to:
-      ```
-        Parsing error: ecmaVersion must be a number. Received value of type string instead
-      ```
-      For .js files in the project
-    */
-  },
   rules: {
     ...getOwnRules(),
     ...getTurnedOffBrokenRules(),
     ...getOpinionatedRuleOverrides(),
     ...getTodoRules(),
   },
-  overrides: [
-    {
-      files: [
-        '**/__tests__/*.{j,t}s?(x)',
-        '**/tests/unit/**/*.spec.{j,t}s?(x)',
-      ],
-      env: {
-        mocha: true,
-      },
-    },
-    {
-      files: ['**/tests/**/*.{j,t}s?(x)'],
-      rules: {
-        'no-console': 'off',
-      },
-    },
-  ],
 };
 
 function getOwnRules() {

.github/workflows/checks.build.yaml

@@ -9,7 +9,13 @@ jobs:
     strategy:
       matrix:
         os: [ macos, ubuntu, windows ]
-        mode: [ development, test, production ]
+        mode: [
+          # Vite mode: https://vitejs.dev/guide/env-and-mode.html
+          development,  # Used by `dev` command
+          production,   # Used by `build` command
+          # Vitest mode: https://vitest.dev/guide/cli.html
+          test,         # Used by Vitest
+        ]
       fail-fast: false # Allows to see results from other combinations
     runs-on: ${{ matrix.os }}-latest
     steps:
@@ -26,12 +32,15 @@ jobs:
         name: Build
         run: npm run build -- --mode ${{ matrix.mode }}
 
-  # A new job is used due to environments/modes different from Vue CLI, https://github.com/nklayman/vue-cli-plugin-electron-builder/issues/1626
   build-desktop:
     strategy:
       matrix:
         os: [ macos, ubuntu, windows ]
-        mode: [ development, production ] # "test" is not supported https://github.com/nklayman/vue-cli-plugin-electron-builder/issues/1627
+        mode: [
+          # electron-vite modes: https://electron-vite.org/guide/env-and-mode.html#global-env-variables
+          development,  # Used by `dev` command
+          production,   # Used by `build` and `preview` commands
+        ]
       fail-fast: false # Allows to see results from other combinations
     runs-on: ${{ matrix.os }}-latest
     steps:
@@ -45,14 +54,11 @@ jobs:
         name: Install dependencies
         run: npm ci
       -
-        name: Install cross-env
-        # Used to set NODE_ENV due to https://github.com/nklayman/vue-cli-plugin-electron-builder/issues/1626
-        run: npm install --global cross-env
+        name: Prebuild
+        run: npm run electron:prebuild -- --mode ${{ matrix.mode }}
       -
         name: Build
-        run: |-  
-          cross-env-shell NODE_ENV=${{ matrix.mode }}
-          npm run electron:build -- --publish never --mode ${{ matrix.mode }}
+        run: npm run electron:build -- --publish never
 
   create-icons:
     strategy:
@@ -72,4 +78,4 @@ jobs:
         run: npm ci
       -
         name: Create icons
-        run: npm run create-icons
+        run: npm run icons:build

.github/workflows/checks.desktop-runtime-errors.yaml

@@ -0,0 +1,67 @@
+name: checks.desktop-runtime-errors
+# Verifies desktop builds for Electron applications across multiple OS platforms (macOS ,Ubuntu, and Windows).
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build-desktop:
+    strategy:
+      matrix:
+        os: [ macos, ubuntu, windows ]
+      fail-fast: false # Allows to see results from other combinations
+    runs-on: ${{ matrix.os }}-latest
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v2
+      -
+        name: Setup node
+        uses: ./.github/actions/setup-node
+      -
+        name: Configure Ubuntu
+        if: matrix.os == 'ubuntu'
+        shell: bash
+        run: |-
+          sudo apt update
+
+          # Configure AppImage dependencies
+          sudo apt install -y libfuse2
+
+          # Configure DBUS (fixes `Failed to connect to the bus: Could not parse server address: Unknown address type`)
+           if ! command -v 'dbus-launch' &> /dev/null; then
+            echo 'DBUS does not exist, installing...'
+            sudo apt install -y dbus-x11 # Gives both dbus and dbus-launch utility
+          fi
+          sudo systemctl start dbus
+          DBUS_LAUNCH_OUTPUT=$(dbus-launch)
+          if [ $? -eq 0 ]; then
+            echo "${DBUS_LAUNCH_OUTPUT}" >> $GITHUB_ENV
+          else
+            echo 'Error: dbus-launch command did not execute successfully. Exiting.' >&2
+            echo "${DBUS_LAUNCH_OUTPUT}" >&2
+            exit 1
+          fi
+
+          # Configure fake (virtual) display
+          sudo apt install -y xvfb
+          sudo Xvfb :99 -screen 0 1024x768x24 > /dev/null 2>&1 &
+          echo "DISPLAY=:99" >> $GITHUB_ENV
+
+          # Install ImageMagick for screenshots
+          sudo apt install -y imagemagick
+
+          # Install xdotool and xprop (from x11-utils) for window title capturing
+          sudo apt install -y xdotool x11-utils
+      -
+        name: Test
+        shell: bash
+        run: node ./scripts/check-desktop-runtime-errors --screenshot
+      -
+        name: Upload screenshot
+        if: always() # Run even if previous step fails
+        uses: actions/upload-artifact@v3
+        with:
+          name: screenshot-${{ matrix.os }}
+          path: screenshot.png

.github/workflows/release.desktop.yaml

@@ -13,20 +13,29 @@ jobs:
       fail-fast: false # So publish runs for other OSes if one fails
     runs-on: ${{ matrix.os }}-latest
     steps:
-      - uses: actions/checkout@v2
+      -
+        uses: actions/checkout@v2
         with:
           ref: master # otherwise it defaults to the version tag missing bump commit
           fetch-depth: 0 # fetch all history
-      - name: Checkout to bump commit
+      -
+        name: Checkout to bump commit
         run: git checkout "$(git rev-list "${{ github.event.release.tag_name }}"..master | tail -1)"
-      - name: Setup node
+      -
+        name: Setup node
         uses: ./.github/actions/setup-node
-      - name: Install dependencies
+      -
+        name: Install dependencies
         run: npm ci
-      - name: Run unit tests
+      -
+        name: Run unit tests
         run: npm run test:unit
-      - name: Publish desktop app
-        run: npm run electron:build -- -p always # https://nklayman.github.io/vue-cli-plugin-electron-builder/guide/recipes.html#upload-release-to-github
+      -
+        name: Prebuild
+        run: npm run electron:prebuild
+      -
+        name: Build and publish
+        run: npm run electron:build -- --publish always
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           EP_GH_IGNORE_TIME: true # Otherwise publishing fails if GitHub release is more than 2 hours old https://github.com/electron-userland/electron-builder/issues/2074

.github/workflows/tests.e2e.yaml

@@ -23,4 +23,4 @@ jobs:
         run: npm ci
       -
         name: Run e2e tests
-        run: npm run test:e2e -- --headless
+        run: npm run test:cy:run

.gitignore

@@ -5,6 +5,3 @@ dist/
 !.vscode/extensions.json
 #Electron-builder output
 /dist_electron
-# Cypress
-/tests/e2e/screenshots
-/tests/e2e/videos

.vscode/extensions.json

@@ -11,8 +11,8 @@
     "dbaeumer.vscode-eslint",           // Lints JavaScript/TypeScript.
     "pmneo.tsimporter",                 // Provides better auto-complete for TypeScripts imports.
     // Vue
-    "jcbuisson.vue",                    // Highlights syntax.
-    "octref.vetur",                     // Adds Vetur, Vue tooling support.
+    "Vue.volar",                        // Official Vue extensions
+    "Vue.vscode-typescript-vue-plugin", // Official TypeScript Vue Plugin
     // Scripting
     "timonwong.shellcheck",             // Lints bash files.
     "ms-vscode.powershell",             // Lints PowerShell files.

CHANGELOG.md

@@ -1,5 +1,22 @@
 # Changelog
 
+## 0.12.1 (2023-08-17)
+
+* Transition to eslint-config-airbnb-with-typescript | [ff84f56](https://github.com/undergroundwires/privacy.sexy/commit/ff84f5676e496dd7ec5b3599e34ec9627d181ea2)
+* Improve user privacy with secure outbound links | [3a594ac](https://github.com/undergroundwires/privacy.sexy/commit/3a594ac7fd708dc1e98155ffb9b21acd4e1fcf2d)
+* Refactor Vue components using Composition API #230 | [1b9be8f](https://github.com/undergroundwires/privacy.sexy/commit/1b9be8fe2d72d8fb5cf1fed6dcc0b9777171aa98)
+* Fix failing security tests | [3bc8da4](https://github.com/undergroundwires/privacy.sexy/commit/3bc8da4cbf1e2bd758dc3fffe4b1e62dc3beb7b3)
+* Improve Defender scripts #201 | [061afad](https://github.com/undergroundwires/privacy.sexy/commit/061afad9673a41454c2421c318898f2b4f4cf504)
+* Fix failing tests due to failed error logging | [986ba07](https://github.com/undergroundwires/privacy.sexy/commit/986ba078a643de6acbee50fff9cf77494ca7ea7f)
+* Implement custom lightweight modal #230 | [9e5491f](https://github.com/undergroundwires/privacy.sexy/commit/9e5491fdbf2d9d40d974f5ad0e879a6d5c6d1e55)
+* Refactor usage of tooltips for flexibility | [bc91237](https://github.com/undergroundwires/privacy.sexy/commit/bc91237d7c54bdcd15c5c39a55def50d172bb659)
+* Fix revert toggle partial rendering | [39e650c](https://github.com/undergroundwires/privacy.sexy/commit/39e650cf110bee6b1b21d9b2902b36b0e2568d54)
+* Increase testability through dependency injection | [ae75059](https://github.com/undergroundwires/privacy.sexy/commit/ae75059cc14db41f55dd2056f528442c7d319dd2)
+* Refactor filter (search query) event handling | [6a20d80](https://github.com/undergroundwires/privacy.sexy/commit/6a20d804dc365d22c1248d787f9912271f508eeb)
+* Migrate to ES6 modules | [a14929a](https://github.com/undergroundwires/privacy.sexy/commit/a14929a13cc6260b514692d9b4f1cdf5fb85d8b2)
+
+[compare](https://github.com/undergroundwires/privacy.sexy/compare/0.12.0...0.12.1)
+
 ## 0.12.0 (2023-08-03)
 
 * Improve script/category name validation | [b210aad](https://github.com/undergroundwires/privacy.sexy/commit/b210aaddf26629179f77fe19f62f65d8a0ca2b87)

README.md

@@ -70,6 +70,12 @@
       src="https://github.com/undergroundwires/privacy.sexy/workflows/build-checks/badge.svg"
     />
   </a>
+  <a href="https://github.com/undergroundwires/privacy.sexy/actions/workflows/checks.desktop-runtime-errors.yaml" target="_blank" rel="noopener noreferrer">
+    <img
+      alt="Status of runtime error checks for the desktop application"
+      src="https://github.com/undergroundwires/privacy.sexy/workflows/checks.desktop-runtime-errors/badge.svg"
+    />
+  </a>
   <!-- Release -->
   <br />
   <a href="https://github.com/undergroundwires/privacy.sexy/actions/workflows/release.git.yaml" target="_blank" rel="noopener noreferrer">

babel.config.cjs

@@ -1,5 +0,0 @@
-module.exports = {
-  presets: [
-    '@vue/cli-plugin-babel/preset',
-  ],
-};

cypress.config.ts

@@ -1,15 +1,15 @@
 import { defineConfig } from 'cypress';
-import setupPlugins from './tests/e2e/plugins/index.js';
+import ViteConfig from './vite.config';
+
+const CYPRESS_BASE_DIR = 'tests/e2e/';
 
 export default defineConfig({
-  fixturesFolder: 'tests/e2e/fixtures',
-  screenshotsFolder: 'tests/e2e/screenshots',
-  videosFolder: 'tests/e2e/videos',
+  fixturesFolder: `${CYPRESS_BASE_DIR}/fixtures`,
+  screenshotsFolder: `${CYPRESS_BASE_DIR}/screenshots`,
+  videosFolder: `${CYPRESS_BASE_DIR}/videos`,
   e2e: {
-    setupNodeEvents(on, config) {
-      return setupPlugins(on, config);
-    },
-    specPattern: 'tests/e2e/specs/**/*.cy.{js,jsx,ts,tsx}',
-    supportFile: 'tests/e2e/support/index.js',
+    baseUrl: `http://localhost:${ViteConfig.server.port}/`,
+    specPattern: `${CYPRESS_BASE_DIR}/**/*.cy.{js,jsx,ts,tsx}`, // Default: cypress/e2e/**/*.cy.{js,jsx,ts,tsx}
+    supportFile: `${CYPRESS_BASE_DIR}/support/e2e.ts`,
   },
 });

docs/application.md

@@ -35,7 +35,7 @@ Application layer enables [data-driven programming](https://en.wikipedia.org/wik
 
 Application layer parses the application data to compile the domain object [`Application.ts`](./../src/domain/Application.ts).
 
-A webpack loader loads (or injects) application data ([collection yaml files](./../src/application/collections/)) into the application layer in compile time. Application layer ([`ApplicationFactory.ts`](./../src/application/ApplicationFactory.ts)) parses and compiles this data in runtime.
+The build tool loads (or injects) application data ([collection yaml files](./../src/application/collections/)) into the application layer in compile time. Application layer ([`ApplicationFactory.ts`](./../src/application/ApplicationFactory.ts)) parses and compiles this data in runtime.
 
 Application layer compiles templating syntax during parsing to create the end scripts. You can read more about templating syntax in [templating.md](./templating.md) and how application data uses them through functions in [collection-files.md | Function](./collection-files.md#function).
 

docs/architecture.md

@@ -15,11 +15,23 @@ Application is
 
 Application uses highly decoupled models & services in different DDD layers:
 
-- presentation layer (see [presentation.md](./presentation.md)),
-- application layer (see [application.md](./application.md)),
-- and domain layer.
+**Application layer** (see [application.md](./application.md)):
 
-Application layer depends on and consumes domain layer. [Presentation layer](./presentation.md) consumes and depends on application layer along with domain layer. Application and presentation layers can communicate through domain model.
+- Coordinates application activities and consumes the domain layer.
+
+**Presentation layer** (see [presentation.md](./presentation.md)):
+
+- Handles UI/UX, consumes both the application and domain layers.
+- May communicate directly with the infrastructure layer for technical needs, but avoids domain logic.
+
+**Domain layer**:
+
+- Serves as the system's core and central truth.
+- Facilitates communication between the application and presentation layers through the domain model.
+
+**Infrastructure layer**:
+
+- Manages technical implementations without dependencies on other layers or domain knowledge.
 
 ![DDD + vue.js](./../img/architecture/app-ddd.png)
 

docs/development.md

@@ -18,9 +18,9 @@ You could run other types of tests as well, but they may take longer time and ov
 
 - Run unit tests: `npm run test:unit`
 - Run integration tests: `npm run test:integration`
-- Run e2e (end-to-end) tests
-  - Interactive mode with GUI: `npm run test:e2e`
-  - Headless mode without GUI: `npm run test:e2e -- --headless`
+- Run end-to-end (e2e) tests:
+  - `npm run test:cy:open`: Run tests interactively using the development server with hot-reloading.
+  - `npm run test:cy:run`: Run tests on the production build in a headless mode.
 
 📖 Read more about testing in [tests](./tests.md).
 
@@ -35,11 +35,25 @@ You could run other types of tests as well, but they may take longer time and ov
 
 ### Running
 
-- Run in local server: `npm run serve`
+**Web:**
+
+- Run in local server: `npm run dev`
   - 💡 Meant for local development with features such as hot-reloading.
-- Run using Docker:
-  1. Build: `docker build -t undergroundwires/privacy.sexy:latest .`
-  2. Run: `docker run -it -p 8080:80 --rm --name privacy.sexy undergroundwires/privacy.sexy:latest`
+- Preview production build: `npm run preview`
+  - Start a local web server that serves the built solution from `./dist`.
+  - 💡 Run `npm run build` before `npm run preview`.
+
+**Desktop apps:**
+
+- `npm run electron:dev`: The command will build the main process and preload scripts source code, and start a dev server for the renderer, and start the Electron app.
+- `npm run electron:preview`: The command will build the main process, preload scripts and renderer source code, and start the Electron app to preview.
+- `npm run electron:prebuild`: The command will build the main process, preload scripts and renderer source code. Usually before packaging the Electron application, you need to execute this command.
+- `npm run electron:build`: Prebuilds the Electron application, packages and publishes it through `electron-builder`.
+
+**Docker:**
+
+1. Build: `docker build -t undergroundwires/privacy.sexy:latest .`
+2. Run: `docker run -it -p 8080:80 --rm --name privacy.sexy undergroundwires/privacy.sexy:latest`
 
 ### Building
 

docs/presentation.md

@@ -10,24 +10,25 @@ The presentation layer uses an event-driven architecture for bidirectional react
 
 ## Structure
 
-- [`/src/` **`presentation/`**](./../src/presentation/): Contains all presentation related code including Vue and Electron configurations
-  - [**`bootstrapping/`**](./../src/presentation/bootstrapping/): Registers Vue global objects including components and plugins.
-  - [**`components/`**](./../src/presentation/components/): Contains all Vue components and their helper classes.
-    - [**`Shared/`**](./../src/presentation/components/Shared): Contains Vue components and component helpers that other components share.
-      - [**`hooks`**](../src/presentation/components/Shared/Hooks): Shared hooks for state access
-  - [**`assets/`**](./../src/presentation/assets/styles/): Contains assets that webpack will process.
-    - [**`fonts/`**](./../src/presentation/assets/fonts/): Contains fonts
-    - [**`styles/`**](./../src/presentation/assets/styles/): Contains shared styles used throughout different components.
-      - [**`components/`**](./../src/presentation/assets/styles/components): Contains reusable styles coupled to a Vue/HTML component.
-      - [**`vendors-extensions/`**](./../src/presentation/assets/styles/third-party-extensions): Contains styles that override third-party components used.
-      - [**`main.scss`**](./../src/presentation/assets/styles/main.scss): Primary Sass file, passes along all other styles, should be the single file used from other components.
-  - [**`main.ts`**](./../src/presentation/main.ts): Application entry point that mounts and starts Vue application.
-  - [**`electron/`**](./../src/presentation/electron/): Electron configuration for the desktop application.
-    - [**`main.ts`**](./../src/presentation/main.ts): Main process of Electron, started as first thing when app starts.
-- [**`/public/`**](./../public/): Contains static assets that are directly copied and do not go through webpack.
-- [**`/vue.config.cjs`**](./../vue.config.cjs): Global Vue CLI configurations loaded by `@vue/cli-service`.
-- [**`/postcss.config.cjs`**](./../postcss.config.cjs): PostCSS configurations used by Vue CLI internally.
-- [**`/babel.config.cjs`**](./../babel.config.cjs): Babel configurations for polyfills used by `@vue/cli-plugin-babel`.
+- [`/src/` **`presentation/`**](./../src/presentation/): Contains Vue and Electron code.
+  - [**`bootstrapping/`**](./../src/presentation/bootstrapping/): Registers Vue components and plugins.
+  - [**`components/`**](./../src/presentation/components/): Contains Vue components and helpers.
+    - [**`Shared/`**](./../src/presentation/components/Shared): Contains shared Vue components and helpers.
+      - [**`hooks`**](../src/presentation/components/Shared/Hooks): Hooks used by components through [dependency injection](#dependency-injections).
+  - [**`/public/`**](../src/presentation/public/): Contains static assets.
+  - [**`assets/`**](./../src/presentation/assets/styles/): Contains assets processed by Vite.
+    - [**`fonts/`**](./../src/presentation/assets/fonts/): Contains fonts.
+    - [**`styles/`**](./../src/presentation/assets/styles/): Contains shared styles.
+      - [**`components/`**](./../src/presentation/assets/styles/components): Contains styles for Vue components.
+      - [**`vendors-extensions/`**](./../src/presentation/assets/styles/third-party-extensions): Contains styles for third-party components.
+      - [**`main.scss`**](./../src/presentation/assets/styles/main.scss): Main Sass file, imported by other components as single entrypoint.
+  - [**`main.ts`**](./../src/presentation/main.ts): Starts Vue app.
+  - [**`electron/`**](./../src/presentation/electron/): Contains Electron code.
+    - [`/main/` **`index.ts`**](./../src/presentation/main.ts): Main entry for Electron, managing application windows and lifecycle events.
+    - [`/preload/` **`index.ts`**](./../src/presentation/main.ts): Script executed before the renderer, securing Node.js features for renderer use.
+- [**`/vite.config.ts`**](./../vite.config.ts): Contains Vite configurations for building web application.
+- [**`/electron.vite.config.ts`**](./../electron.vite.config.ts): Contains Vite configurations for building desktop applications.
+- [**`/postcss.config.cjs`**](./../postcss.config.cjs): Contains PostCSS configurations for Vite.
 
 ## Visual design best-practices
 
@@ -86,6 +87,10 @@ Shared components include:
 - [ModalDialog.vue](./../src/presentation/components/Shared/Modal/ModalDialog.vue) is utilized for rendering modal windows.
 - [TooltipWrapper.vue](./../src/presentation/components/Shared/TooltipWrapper.vue) acts as a wrapper for rendering tooltips.
 
+## Desktop builds
+
+Desktop builds uses `electron-vite` to bundle the code, and `electron-builder` to build and publish the packages.
+
 ## Sass naming convention
 
 - Use lowercase for variables/functions/mixins, e.g.:

docs/tests.md

@@ -5,78 +5,79 @@ There are different types of tests executed:
 1. [Unit tests](#unit-tests)
 2. [Integration tests](#integration-tests)
 3. [End-to-end (E2E) tests](#e2e-tests)
+4. [Automated checks](#automated-checks)
 
-Common aspects for all tests:
+## Unit and integration tests
 
-- They use [Mocha](https://mochajs.org/) and [Chai](https://www.chaijs.com/).
-- Their files end with `.spec.{ts|js}` suffix.
-
-💡 You can use path/module alias `@/tests` in import statements.
-
-## Unit tests
-
-- Unit tests test each component in isolation.
-- All unit tests goes under [`./tests/unit`](./../tests/unit).
-- They rely on [stubs](./../tests/unit/shared/Stubs) for isolation.
-- Unit tests include also Vue component tests using `@vue/test-utils`.
-
-### Unit tests structure
-
-- [`./src/`](./../src/)
-  - Includes source code that unit tests will test.
-- [`./tests/unit/`](./../tests/unit/)
-  - Includes test code.
-  - Tests follow same folder structure as [`./src/`](./../src).
-    - E.g. if system under test lies in [`./src/application/ApplicationFactory.ts`](./../src/application/ApplicationFactory.ts) then its tests would be in test would be at [`./tests/unit/application/ApplicationFactory.spec.ts`](./../tests/unit/application/ApplicationFactory.spec.ts).
-  - [`shared/`](./../tests/unit/shared/)
-    - Includes common functionality that's shared across unit tests.
-    - [`Assertions/`](./../tests/unit/shared/Assertions):
-      - Common assertions that extend [Chai Assertion Library](https://www.chaijs.com/).
-      - Asserting functions should start with `expect` prefix.
-    - [`TestCases/`](./../tests/unit/shared/TestCases/)
-      - Shared test cases.
-      - Functions that calls `it()` from [Mocha test framework](https://mochajs.org/) should have `it` prefix.
-        - E.g. `itEachAbsentCollectionValue()`.
-    - [`Stubs/`](./../tests/unit/shared/Stubs)
-      - Includes stubs to be able to test components in isolation.
-      - Stubs have minimal and dummy behavior to be functional, they may also have spying or mocking functions.
-
-### Unit tests naming
-
-- Each test suite first describe the system under test.
-  - E.g. tests for class `Application.ts` are all inside `Application.spec.ts`.
-- `describe` blocks tests for same function (if applicable).
-  - E.g. test for `run()` are inside `describe('run', () => ..)`.
+- They utilize [Vitest](https://vitest.dev/).
+- Test files are suffixed with `.spec.ts`.
 
 ### Act, arrange, assert
 
-- Tests use act, arrange and assert (AAA) pattern when applicable.
+- Tests implement the act, arrange, and assert (AAA) pattern.
 - **Arrange**
-  - Sets up the test case.
-  - Starts with comment line `// arrange`.
+  - Sets up the test scenario and environment.
+  - Begins with comment line `// arrange`.
 - **Act**
   - Executes the actual test.
-  - Starts with comment line `// act`.
+  - Begins with comment line `// act`.
 - **Assert**
-  - Elicit some sort of expectation.
-  - Starts with comment line `// assert`.
+  - Sets an expectation for the test's outcome.
+  - Begins with comment line `// assert`.
 
-## Integration tests
+### Unit tests
 
-- Tests functionality of a component in combination with others (not isolated).
-- Ensure dependencies to third parties work as expected.
-- Defined in [./tests/integration](./../tests/integration).
+- Evaluate individual components in isolation.
+- Located in [`./tests/unit`](./../tests/unit).
+- Achieve isolation using [stubs](./../tests/unit/shared/Stubs).
+- Include Vue component tests, enabled by `@vue/test-utils`.
+
+#### Unit tests naming
+
+- Test suites start with a description of the component or system under test.
+  - E.g., tests for `Application.ts` are contained in `Application.spec.ts`.
+- Whenever possible, `describe` blocks group tests of the same function.
+  - E.g., tests for `run()` are inside `describe('run', () => ...)`.
+
+### Integration tests
+
+- Assess the combined functionality of components.
+- They verify that third-party dependencies function as anticipated.
 
 ## E2E tests
 
-- Test the functionality and performance of a running application.
-- Vue CLI plugin  [`e2e-cypress`](https://github.com/vuejs/vue-cli/tree/dev/packages/@vue/cli-plugin-e2e-cypress#readme) configures E2E tests.
-- Test names and folders have logical structure based on tests executed.
-- The structure is following:
-  - [`cypress.config.ts`](./../cypress.config.ts): Cypress configuration file.
-  - [`./tests/e2e/`](./../tests/e2e/): Base Cypress folder.
-    - [`/specs/`](./../tests/e2e/specs/): Test files named with `.spec.js` extension.
-    - [`/plugins/index.js`](./../tests/e2e/plugins/index.js): Plugin file executed before loading project.
-    - [`/support/index.js`](./../tests/e2e/support/index.js): Support file, runs before every single spec file.
-    - *(Ignored)* `/videos`: Asset folder for videos taken during tests.
-    - *(Ignored)* `/screenshots`: Asset folder for Screenshots taken during tests.
+- Examine the live web application's functionality and performance.
+- Uses Cypress to run the tests.
+
+## Automated checks
+
+These checks validate various qualities like runtime execution, building process, security testing, etc.
+
+- Use [various tools](./../package.json) and [scripts](./../scripts).
+- Are automatically executed as [GitHub workflows](./../.github/workflows).
+
+## Tests structure
+
+- [`package.json`](./../package.json): Defines test commands and includes tools used in tests.
+- [`vite.config.ts`](./../vite.config.ts): Configures `vitest` for unit and integration tests.
+- [`./src/`](./../src/): Contains the code subject to testing.
+- [`./tests/shared/`](./../tests/shared/): Contains code shared by different test categories.
+  - [`bootstrap/setup.ts`](./../tests/shared/bootstrap/setup.ts): Initializes unit and integration tests.
+- [`./tests/unit/`](./../tests/unit/)
+  - Stores unit test code.
+  - The directory structure mirrors [`./src/`](./../src).
+    - E.g., tests for [`./src/application/ApplicationFactory.ts`](./../src/application/ApplicationFactory.ts) reside in [`./tests/unit/application/ApplicationFactory.spec.ts`](./../tests/unit/application/ApplicationFactory.spec.ts).
+  - [`shared/`](./../tests/unit/shared/)
+    - Contains shared unit test functionalities.
+    - [`Assertions/`](./../tests/unit/shared/Assertions): Contains common assertion functions, prefixed with `expect`.
+    - [`TestCases/`](./../tests/unit/shared/TestCases/)
+      - Shared test cases.
+      - Functions that calls `it()` from [Vitest](https://vitest.dev/) should have `it` prefix.
+    - [`Stubs/`](./../tests/unit/shared/Stubs): Maintains stubs for component isolation, equipped with basic functionalities and, when necessary, spying or mocking capabilities.
+- [`./tests/integration/`](./../tests/integration/): Contains integration test files.
+- [`cypress.config.ts`](./../cypress.config.ts): Cypress (E2E tests) configuration file.
+- [`./tests/e2e/`](./../tests/e2e/): Base Cypress folder, includes tests with `.cy.ts` extension.
+  - [`/support/e2e.ts`](./../tests/e2e/support/e2e.ts): Support file, runs before every single spec file.
+  - [`/tsconfig.json`]: TypeScript configuration for file Cypress code, improves IDE support, recommended to have by official documentation.
+  - *(git ignored)* `/videos`: Asset folder for videos taken during tests.
+  - *(git ignored)* `/screenshots`: Asset folder for Screenshots taken during tests.

electron-builder.yml

@@ -0,0 +1,31 @@
+# -------
+# Windows
+# -------
+win:
+  target: nsis
+nsis:
+  artifactName: ${name}-${version}-Setup.${ext}
+
+# -----
+# Linux
+# -----
+linux:
+  target: AppImage
+appImage:
+  artifactName: ${name}-${version}.${ext}
+
+# -----
+# macOS
+# -----
+mac:
+  target: dmg
+dmg:
+  artifactName: ${name}-${version}.${ext}
+
+# ----------------
+# Publish options
+# ----------------
+publish:
+  provider: 'github'
+  vPrefixedTagName: false # default: true
+  releaseType: release # default: draft

electron.vite.config.ts

@@ -0,0 +1,68 @@
+import { resolve } from 'path';
+import { mergeConfig, UserConfig } from 'vite';
+import { defineConfig, externalizeDepsPlugin } from 'electron-vite';
+import { getAliasesFromTsConfig, getClientEnvironmentVariables } from './vite-config-helper';
+import { createVueConfig } from './vite.config';
+
+const MAIN_ENTRY_FILE = resolvePathFromProjectRoot('src/presentation/electron/main/index.ts');
+const PRELOAD_ENTRY_FILE = resolvePathFromProjectRoot('src/presentation/electron/preload/index.ts');
+const WEB_INDEX_HTML_PATH = resolvePathFromProjectRoot('src/presentation/index.html');
+const DIST_DIR = resolvePathFromProjectRoot('dist_electron/');
+
+export default defineConfig({
+  main: getSharedElectronConfig({
+    distDirSubfolder: 'main',
+    entryFilePath: MAIN_ENTRY_FILE,
+  }),
+  preload: getSharedElectronConfig({
+    distDirSubfolder: 'preload',
+    entryFilePath: PRELOAD_ENTRY_FILE,
+  }),
+  renderer: mergeConfig(
+    createVueConfig({
+      supportLegacyBrowsers: false,
+    }),
+    {
+      build: {
+        outDir: resolve(DIST_DIR, 'renderer'),
+        rollupOptions: {
+          input: {
+            index: WEB_INDEX_HTML_PATH,
+          },
+        },
+      },
+    },
+  ),
+});
+
+function getSharedElectronConfig(options: {
+  readonly distDirSubfolder: string;
+  readonly entryFilePath: string;
+}): UserConfig {
+  return {
+    build: {
+      outDir: resolve(DIST_DIR, options.distDirSubfolder),
+      lib: {
+        entry: options.entryFilePath,
+      },
+      rollupOptions: {
+        output: {
+          entryFileNames: '[name].cjs', // This is needed so `type="module"` works
+        },
+      },
+    },
+    plugins: [externalizeDepsPlugin()],
+    define: {
+      ...getClientEnvironmentVariables(),
+    },
+    resolve: {
+      alias: {
+        ...getAliasesFromTsConfig(),
+      },
+    },
+  };
+}
+
+function resolvePathFromProjectRoot(pathSegment: string) {
+  return resolve(__dirname, pathSegment);
+}

img/README.md

@@ -4,9 +4,6 @@ This folder contains image files and other resources related to images.
 
 ## logo.svg
 
-[logo.svg](./logo.svg) is the master logo from which all other icons or images are created from.
-It should be the only file that will be changed manually.
-
-[`logo-update.mjs`](./logo-update.mjs) script in this folder updates all the logo files.
-It should be executed everytime the logo is changed.
-It automates recreation of logo files in different formats.
+[`logo.svg`](./logo.svg) serves as the primary logo from which all other icons and images are derived.
+Only modify this file manually.
+After making changes, execute `npm run build:icons` to regenerate logo files in various formats.

package.json

@@ -1,30 +1,35 @@
 {
   "name": "privacy.sexy",
-  "version": "0.12.0",
+  "version": "0.12.1",
   "private": true,
   "slogan": "Now you have the choice",
   "description": "Enforce privacy & security best-practices on Windows, macOS and Linux, because privacy is sexy 🍑🍆",
   "author": "undergroundwires",
   "type": "module",
   "scripts": {
-    "serve": "vue-cli-service serve",
-    "build": "vue-cli-service build",
-    "test:unit": "vue-cli-service test:unit --include ./tests/bootstrap/setup.ts",
+    "dev": "vite",
+    "build": "vue-tsc --noEmit && vite build",
+    "preview": "vite preview",
+    "test:unit": "vitest run --dir tests/unit",
+    "test:integration": "vitest run --dir tests/integration",
     "test:e2e": "vue-cli-service test:e2e",
+    "test:cy:run": "start-server-and-test \"vite build && vite preview --port 7070\" http://localhost:7070 \"cypress run --config baseUrl=http://localhost:7070\"",
+    "test:cy:open": "start-server-and-test \"vite --port 7070 --mode production\" http://localhost:7070 \"cypress open --config baseUrl=http://localhost:7070\"",
     "lint": "npm run lint:md && npm run lint:md:consistency && npm run lint:md:relative-urls && npm run lint:eslint && npm run lint:yaml",
-    "create-icons": "node img/logo-update.mjs",
-    "electron:build": "vue-cli-service electron:build",
-    "electron:serve": "vue-cli-service electron:serve",
-    "lint:eslint": "vue-cli-service lint --no-fix --mode production",
+    "icons:build": "node scripts/logo-update.js",
+    "electron:dev": "electron-vite dev",
+    "electron:preview": "electron-vite preview",
+    "electron:prebuild": "electron-vite build",
+    "electron:build": "electron-builder",
+    "lint:eslint": "eslint .",
     "lint:md": "markdownlint **/*.md --ignore node_modules",
     "lint:md:consistency": "remark . --frail --use remark-preset-lint-consistent",
     "lint:md:relative-urls": "remark . --frail --use remark-validate-links",
     "lint:yaml": "yamllint **/*.yaml --ignore=node_modules/**/*.yaml",
     "postinstall": "electron-builder install-app-deps",
-    "postuninstall": "electron-builder install-app-deps",
-    "test:integration": "vue-cli-service test:unit \"tests/integration/**/*.spec.ts\" --include ./tests/bootstrap/setup.ts"
+    "postuninstall": "electron-builder install-app-deps"
   },
-  "main": "index.js",
+  "main": "./dist_electron/main/index.cjs",
   "dependencies": {
     "@fortawesome/fontawesome-svg-core": "^6.4.0",
     "@fortawesome/free-brands-svg-icons": "^6.4.0",
@@ -33,7 +38,6 @@
     "@fortawesome/vue-fontawesome": "^2.0.9",
     "@juggle/resize-observer": "^3.4.0",
     "ace-builds": "^1.23.4",
-    "core-js": "^3.32.0",
     "cross-fetch": "^4.0.0",
     "electron-progressbar": "^2.1.0",
     "file-saver": "^2.0.5",
@@ -45,23 +49,18 @@
     "vue": "^2.7.14"
   },
   "devDependencies": {
+    "@modyfi/vite-plugin-yaml": "^1.0.4",
     "@rushstack/eslint-patch": "^1.3.2",
     "@types/ace": "^0.0.48",
-    "@types/chai": "^4.3.5",
     "@types/file-saver": "^2.0.5",
-    "@types/mocha": "^10.0.1",
     "@typescript-eslint/eslint-plugin": "^5.62.0",
     "@typescript-eslint/parser": "^5.62.0",
-    "@vue/cli-plugin-babel": "~5.0.8",
-    "@vue/cli-plugin-e2e-cypress": "~5.0.8",
-    "@vue/cli-plugin-eslint": "~5.0.8",
-    "@vue/cli-plugin-typescript": "~5.0.8",
-    "@vue/cli-plugin-unit-mocha": "~5.0.8",
-    "@vue/cli-service": "~5.0.8",
+    "@vitejs/plugin-legacy": "^4.1.1",
+    "@vitejs/plugin-vue2": "^2.2.0",
     "@vue/eslint-config-airbnb-with-typescript": "^7.0.0",
     "@vue/eslint-config-typescript": "^11.0.3",
     "@vue/test-utils": "^1.3.6",
-    "chai": "^4.3.7",
+    "autoprefixer": "^10.4.15",
     "cypress": "^12.17.2",
     "electron": "^25.3.2",
     "electron-builder": "^24.6.3",
@@ -69,32 +68,32 @@
     "electron-icon-builder": "^2.0.1",
     "electron-log": "^4.4.8",
     "electron-updater": "^6.1.4",
+    "electron-vite": "^1.0.27",
     "eslint": "^8.46.0",
-    "eslint-plugin-import": "^2.26.0",
+    "eslint-plugin-cypress": "^2.14.0",
     "eslint-plugin-vue": "^9.6.0",
     "eslint-plugin-vuejs-accessibility": "^1.2.0",
     "icon-gen": "^3.0.1",
-    "js-yaml-loader": "^1.2.2",
+    "jsdom": "^22.1.0",
     "markdownlint-cli": "^0.35.0",
+    "postcss": "^8.4.28",
     "remark-cli": "^11.0.0",
     "remark-lint-no-dead-urls": "^1.1.0",
     "remark-preset-lint-consistent": "^5.1.2",
     "remark-validate-links": "^12.1.1",
     "sass": "^1.64.1",
-    "sass-loader": "^13.3.2",
+    "start-server-and-test": "^2.0.0",
     "svgexport": "^0.4.2",
-    "ts-loader": "^9.4.4",
+    "terser": "^5.19.2",
     "tslib": "~2.4.0",
     "typescript": "~4.6.2",
-    "vue-cli-plugin-electron-builder": "^3.0.0-alpha.4",
+    "vite": "^4.4.9",
+    "vitest": "^0.34.2",
+    "vue-tsc": "^1.8.8",
     "yaml-lint": "^1.7.0"
   },
-  "overrides": {
-    "vue-cli-plugin-electron-builder": {
-      "electron-builder": "^24.6.3"
-    }
-  },
   "//devDependencies": {
+    "terser": "Used by @vitejs/plugin-legacy for minification",
     "typescript": [
       "Cannot upgrade to 5.X.X due to unmaintained @vue/cli-plugin-typescript, https://github.com/vuejs/vue-cli/issues/7401",
       "Cannot upgrade to > 4.6.X otherwise unit tests do not work, https://github.com/evanw/node-source-map-support/issues/252"

postcss.config.cjs

@@ -1,5 +1,9 @@
-module.exports = {
-  plugins: {
-    autoprefixer: {},
-  },
+const autoprefixer = require('autoprefixer');
+
+module.exports = () => {
+  return {
+    plugins: [
+      autoprefixer(),
+    ],
+  };
 };

scripts/check-desktop-runtime-errors/.eslintrc.cjs

@@ -0,0 +1,10 @@
+require('@rushstack/eslint-patch/modern-module-resolution.js');
+
+module.exports = {
+  env: {
+    node: true,
+  },
+  rules: {
+    'import/extensions': ['error', 'always'],
+  },
+};

scripts/check-desktop-runtime-errors/README.md

@@ -0,0 +1,35 @@
+# check-desktop-runtime-errors
+
+This script automates the processes of:
+
+1) Building
+2) Packaging
+3) Installing
+4) Executing
+5) Verifying Electron distributions
+
+It runs the application for a duration and detects runtime errors in the packaged application via:
+
+- **Log verification**: Checking application logs for errors and validating successful application initialization.
+- **`stderr` monitoring**: Continuous listening to the `stderr` stream for unexpected errors.
+- **Window title inspection**: Checking for window titles that indicate crashes before logging becomes possible.
+
+Upon error, the script captures a screenshot (if `--screenshot` is provided) and terminates.
+
+## Usage
+
+```sh
+node ./scripts/check-desktop-runtime-errors
+```
+
+## Options
+
+- `--build`: Clears the electron distribution directory and forces a rebuild of the Electron app.
+- `--screenshot`: Takes a screenshot of the desktop environment after running the application.
+
+This module provides utilities for building, executing, and validating Electron desktop apps.
+It can be used to automate checking for runtime errors during development.
+
+## Configs
+
+Configurations are defined in [`config.js`](./config.js).

scripts/check-desktop-runtime-errors/app/app-logs.js

@@ -0,0 +1,55 @@
+import { unlink, readFile } from 'fs/promises';
+import { join } from 'path';
+import { log, die, LOG_LEVELS } from '../utils/log.js';
+import { exists } from '../utils/io.js';
+import { SUPPORTED_PLATFORMS, CURRENT_PLATFORM } from '../utils/platform.js';
+import { getAppName } from '../utils/npm.js';
+
+export async function clearAppLogFile(projectDir) {
+  if (!projectDir) { throw new Error('missing project directory'); }
+  const logPath = await determineLogPath(projectDir);
+  if (!logPath || !await exists(logPath)) {
+    log(`Skipping clearing logs, log file does not exist: ${logPath}.`);
+    return;
+  }
+  try {
+    await unlink(logPath);
+    log(`Successfully cleared the log file at: ${logPath}.`);
+  } catch (error) {
+    die(`Failed to clear the log file at: ${logPath}. Reason: ${error}`);
+  }
+}
+
+export async function readAppLogFile(projectDir) {
+  if (!projectDir) { throw new Error('missing project directory'); }
+  const logPath = await determineLogPath(projectDir);
+  if (!logPath || !await exists(logPath)) {
+    log(`No log file at: ${logPath}`, LOG_LEVELS.WARN);
+    return undefined;
+  }
+  const logContent = await readLogFile(logPath);
+  return logContent;
+}
+
+async function determineLogPath(projectDir) {
+  if (!projectDir) { throw new Error('missing project directory'); }
+  const appName = await getAppName(projectDir);
+  if (!appName) {
+    die('App name not found.');
+  }
+  const logFilePaths = {
+    [SUPPORTED_PLATFORMS.MAC]: () => join(process.env.HOME, 'Library', 'Logs', appName, 'main.log'),
+    [SUPPORTED_PLATFORMS.LINUX]: () => join(process.env.HOME, '.config', appName, 'logs', 'main.log'),
+    [SUPPORTED_PLATFORMS.WINDOWS]: () => join(process.env.USERPROFILE, 'AppData', 'Roaming', appName, 'logs', 'main.log'),
+  };
+  const logFilePath = logFilePaths[CURRENT_PLATFORM]?.();
+  if (!logFilePath) {
+    log(`Cannot determine log path, unsupported OS: ${CURRENT_PLATFORM}`, LOG_LEVELS.WARN);
+  }
+  return logFilePath;
+}
+
+async function readLogFile(logFilePath) {
+  const content = await readFile(logFilePath, 'utf-8');
+  return content?.trim().length > 0 ? content : undefined;
+}

scripts/check-desktop-runtime-errors/app/check-for-errors.js

@@ -0,0 +1,126 @@
+import { splitTextIntoLines, indentText } from '../utils/text.js';
+import { die } from '../utils/log.js';
+import { readAppLogFile } from './app-logs.js';
+
+const ELECTRON_CRASH_TITLE = 'Error'; // Used by electron for early crashes
+const LOG_ERROR_MARKER = '[error]'; // from electron-log
+const EXPECTED_LOG_MARKERS = [
+  '[WINDOW_INIT]',
+  '[PRELOAD_INIT]',
+  '[APP_MOUNT_INIT]',
+];
+
+export async function checkForErrors(stderr, windowTitles, projectDir) {
+  if (!projectDir) { throw new Error('missing project directory'); }
+  const errors = await gatherErrors(stderr, windowTitles, projectDir);
+  if (errors.length) {
+    die(formatErrors(errors));
+  }
+}
+
+async function gatherErrors(stderr, windowTitles, projectDir) {
+  if (!projectDir) { throw new Error('missing project directory'); }
+  const logContent = await readAppLogFile(projectDir);
+  return [
+    verifyStdErr(stderr),
+    verifyApplicationLogsExist(logContent),
+    ...EXPECTED_LOG_MARKERS.map((marker) => verifyLogMarkerExistsInLogs(logContent, marker)),
+    verifyWindowTitle(windowTitles),
+    verifyErrorsInLogs(logContent),
+  ].filter(Boolean);
+}
+
+function formatErrors(errors) {
+  if (!errors || !errors.length) { throw new Error('missing errors'); }
+  return [
+    'Errors detected during execution:',
+    ...errors.map(
+      (error) => formatError(error),
+    ),
+  ].join('\n---\n');
+}
+
+function formatError(error) {
+  if (!error) { throw new Error('missing error'); }
+  if (!error.reason) { throw new Error(`missing reason, error (${typeof error}): ${JSON.stringify(error)}`); }
+  let message = `Reason: ${indentText(error.reason, 1)}`;
+  if (error.description) {
+    message += `\nDescription:\n${indentText(error.description, 2)}`;
+  }
+  return message;
+}
+
+function verifyApplicationLogsExist(logContent) {
+  if (!logContent || !logContent.length) {
+    return describeError(
+      'Missing application logs',
+      'Application logs are empty not were not found.',
+    );
+  }
+  return undefined;
+}
+
+function verifyLogMarkerExistsInLogs(logContent, marker) {
+  if (!marker) {
+    throw new Error('missing marker');
+  }
+  if (!logContent?.includes(marker)) {
+    return describeError(
+      'Incomplete application logs',
+      `Missing identifier "${marker}" in application logs.`,
+    );
+  }
+  return undefined;
+}
+
+function verifyWindowTitle(windowTitles) {
+  const errorTitles = windowTitles.filter(
+    (title) => title.toLowerCase().includes(ELECTRON_CRASH_TITLE),
+  );
+  if (errorTitles.length) {
+    return describeError(
+      'Unexpected window title',
+      'One or more window titles suggest an error occurred in the application:'
+        + `\nError Titles: ${errorTitles.join(', ')}`
+        + `\nAll Titles: ${windowTitles.join(', ')}`,
+    );
+  }
+  return undefined;
+}
+
+function verifyStdErr(stderrOutput) {
+  if (stderrOutput && stderrOutput.length > 0) {
+    return describeError(
+      'Standard error stream (`stderr`) is not empty.',
+      stderrOutput,
+    );
+  }
+  return undefined;
+}
+
+function verifyErrorsInLogs(logContent) {
+  if (!logContent || !logContent.length) {
+    return undefined;
+  }
+  const logLines = getNonEmptyLines(logContent)
+    .filter((line) => line.includes(LOG_ERROR_MARKER));
+  if (!logLines.length) {
+    return undefined;
+  }
+  return describeError(
+    'Application log file',
+    logLines.join('\n'),
+  );
+}
+
+function describeError(reason, description) {
+  return {
+    reason,
+    description: `${description}\n\nThis might indicate an early crash or significant runtime issue.`,
+  };
+}
+
+function getNonEmptyLines(text) {
+  return splitTextIntoLines(text)
+    .filter((line) => line?.trim().length > 0);
+}

scripts/check-desktop-runtime-errors/app/extractors/linux.js

@@ -0,0 +1,34 @@
+import { access, chmod } from 'fs/promises';
+import { constants } from 'fs';
+import { findSingleFileByExtension } from '../../utils/io.js';
+import { log } from '../../utils/log.js';
+
+export async function prepareLinuxApp(desktopDistPath) {
+  const { absolutePath: appFile } = await findSingleFileByExtension(
+    'AppImage',
+    desktopDistPath,
+  );
+  await makeExecutable(appFile);
+  return {
+    appExecutablePath: appFile,
+  };
+}
+
+async function makeExecutable(appFile) {
+  if (!appFile) { throw new Error('missing file'); }
+  if (await isExecutable(appFile)) {
+    log('AppImage is already executable.');
+    return;
+  }
+  log('Making it executable...');
+  await chmod(appFile, 0o755);
+}
+
+async function isExecutable(file) {
+  try {
+    await access(file, constants.X_OK);
+    return true;
+  } catch {
+    return false;
+  }
+}

scripts/check-desktop-runtime-errors/app/extractors/macos.js

@@ -0,0 +1,66 @@
+import { runCommand } from '../../utils/run-command.js';
+import { findSingleFileByExtension, exists } from '../../utils/io.js';
+import { log, die, LOG_LEVELS } from '../../utils/log.js';
+
+export async function prepareMacOsApp(desktopDistPath) {
+  const { absolutePath: dmgPath } = await findSingleFileByExtension('dmg', desktopDistPath);
+  const { mountPath } = await mountDmg(dmgPath);
+  const appPath = await findMacAppExecutablePath(mountPath);
+  return {
+    appExecutablePath: appPath,
+    cleanup: async () => {
+      log('Cleaning up resources...');
+      await detachMount(mountPath);
+    },
+  };
+}
+
+async function mountDmg(dmgFile) {
+  const { stdout: hdiutilOutput, error } = await runCommand(`hdiutil attach '${dmgFile}'`);
+  if (error) {
+    die(`Failed to mount DMG file at ${dmgFile}.\n${error}`);
+  }
+  const mountPathMatch = hdiutilOutput.match(/\/Volumes\/[^\n]+/);
+  const mountPath = mountPathMatch ? mountPathMatch[0] : null;
+  return {
+    mountPath,
+  };
+}
+
+async function findMacAppExecutablePath(mountPath) {
+  const { stdout: findOutput, error } = await runCommand(
+    `find '${mountPath}' -maxdepth 1 -type d -name "*.app"`,
+  );
+  if (error) {
+    die(`Failed to find executable path at mount path ${mountPath}\n${error}`);
+  }
+  const appFolder = findOutput.trim();
+  const appName = appFolder.split('/').pop().replace('.app', '');
+  const appPath = `${appFolder}/Contents/MacOS/${appName}`;
+  if (await exists(appPath)) {
+    log(`Application is located at ${appPath}`);
+  } else {
+    die(`Application does not exist at ${appPath}`);
+  }
+  return appPath;
+}
+
+async function detachMount(mountPath, retries = 5) {
+  const { error } = await runCommand(`hdiutil detach '${mountPath}'`);
+  if (error) {
+    if (retries <= 0) {
+      log(`Failed to detach mount after multiple attempts: ${mountPath}\n${error}`, LOG_LEVELS.WARN);
+      return;
+    }
+    await sleep(500);
+    await detachMount(mountPath, retries - 1);
+    return;
+  }
+  log(`Successfully detached from ${mountPath}`);
+}
+
+function sleep(milliseconds) {
+  return new Promise((resolve) => {
+    setTimeout(resolve, milliseconds);
+  });
+}

scripts/check-desktop-runtime-errors/app/extractors/windows.js

@@ -0,0 +1,38 @@
+import { mkdtemp, rmdir } from 'fs/promises';
+import { join } from 'path';
+import { tmpdir } from 'os';
+import { findSingleFileByExtension, exists } from '../../utils/io.js';
+import { log, die } from '../../utils/log.js';
+import { runCommand } from '../../utils/run-command.js';
+
+export async function prepareWindowsApp(desktopDistPath) {
+  const workdir = await mkdtemp(join(tmpdir(), 'win-nsis-installation-'));
+  if (await exists(workdir)) {
+    log(`Temporary directory ${workdir} already exists, cleaning up...`);
+    await rmdir(workdir, { recursive: true });
+  }
+  const { appExecutablePath } = await installNsis(workdir, desktopDistPath);
+  return {
+    appExecutablePath,
+    cleanup: async () => {
+      log(`Cleaning up working directory ${workdir}...`);
+      await rmdir(workdir, { recursive: true });
+    },
+  };
+}
+
+async function installNsis(installationPath, desktopDistPath) {
+  const { absolutePath: installerPath } = await findSingleFileByExtension('exe', desktopDistPath);
+
+  log(`Silently installing contents of ${installerPath} to ${installationPath}...`);
+  const { error } = await runCommand(`"${installerPath}" /S /D=${installationPath}`);
+  if (error) {
+    die(`Failed to install.\n${error}`);
+  }
+
+  const { absolutePath: appExecutablePath } = await findSingleFileByExtension('exe', installationPath);
+
+  return {
+    appExecutablePath,
+  };
+}

scripts/check-desktop-runtime-errors/app/runner.js

@@ -0,0 +1,164 @@
+import { spawn } from 'child_process';
+import { log, LOG_LEVELS, die } from '../utils/log.js';
+import { captureScreen } from './system-capture/screen-capture.js';
+import { captureWindowTitles } from './system-capture/window-title-capture.js';
+
+const TERMINATION_GRACE_PERIOD_IN_SECONDS = 60;
+const TERMINATION_CHECK_INTERVAL_IN_MS = 1000;
+const WINDOW_TITLE_CAPTURE_INTERVAL_IN_MS = 100;
+
+export function runApplication(
+  appFile,
+  executionDurationInSeconds,
+  enableScreenshot,
+  screenshotPath,
+) {
+  if (!appFile) {
+    throw new Error('Missing app file');
+  }
+
+  logDetails(appFile, executionDurationInSeconds);
+
+  const processDetails = {
+    stderrData: '',
+    stdoutData: '',
+    explicitlyKilled: false,
+    windowTitles: [],
+    isCrashed: false,
+    isDone: false,
+    process: undefined,
+    resolve: () => { /* NOOP */ },
+  };
+
+  const process = spawn(appFile);
+  processDetails.process = process;
+
+  return new Promise((resolve) => {
+    processDetails.resolve = resolve;
+    handleTitleCapture(process.pid, processDetails);
+    handleProcessEvents(
+      processDetails,
+      enableScreenshot,
+      screenshotPath,
+      executionDurationInSeconds,
+    );
+  });
+}
+
+function logDetails(appFile, executionDurationInSeconds) {
+  log(
+    [
+      'Executing the app to check for errors...',
+      `Maximum execution time: ${executionDurationInSeconds}`,
+      `Application path: ${appFile}`,
+    ].join('\n\t'),
+  );
+}
+
+function handleTitleCapture(processId, processDetails) {
+  const capture = async () => {
+    const titles = await captureWindowTitles(processId);
+
+    (titles || []).forEach((title) => {
+      if (!title || !title.length) {
+        return;
+      }
+      if (!processDetails.windowTitles.includes(title)) {
+        log(`New window title captured: ${title}`);
+        processDetails.windowTitles.push(title);
+      }
+    });
+
+    if (!processDetails.isDone) {
+      setTimeout(capture, WINDOW_TITLE_CAPTURE_INTERVAL_IN_MS);
+    }
+  };
+
+  capture();
+}
+
+function handleProcessEvents(
+  processDetails,
+  enableScreenshot,
+  screenshotPath,
+  executionDurationInSeconds,
+) {
+  const { process } = processDetails;
+  process.stderr.on('data', (data) => {
+    processDetails.stderrData += data.toString();
+  });
+  process.stdout.on('data', (data) => {
+    processDetails.stdoutData += data.toString();
+  });
+
+  process.on('error', (error) => {
+    die(`An issue spawning the child process: ${error}`, LOG_LEVELS.ERROR);
+  });
+
+  process.on('exit', async (code) => {
+    await onProcessExit(code, processDetails, enableScreenshot, screenshotPath);
+  });
+
+  setTimeout(async () => {
+    await onExecutionLimitReached(process, processDetails, enableScreenshot, screenshotPath);
+  }, executionDurationInSeconds * 1000);
+}
+
+async function onProcessExit(code, processDetails, enableScreenshot, screenshotPath) {
+  log(`Application exited ${code === null || Number.isNaN(code) ? '.' : `with code ${code}`}`);
+
+  if (processDetails.explicitlyKilled) return;
+
+  processDetails.isCrashed = true;
+
+  if (enableScreenshot) {
+    await captureScreen(screenshotPath);
+  }
+
+  finishProcess(processDetails);
+}
+
+async function onExecutionLimitReached(process, processDetails, enableScreenshot, screenshotPath) {
+  if (enableScreenshot) {
+    await captureScreen(screenshotPath);
+  }
+
+  processDetails.explicitlyKilled = true;
+  await terminateGracefully(process);
+  finishProcess(processDetails);
+}
+
+function finishProcess(processDetails) {
+  processDetails.isDone = true;
+  processDetails.resolve({
+    stderr: processDetails.stderrData,
+    stdout: processDetails.stdoutData,
+    windowTitles: [...processDetails.windowTitles],
+    isCrashed: processDetails.isCrashed,
+  });
+}
+
+async function terminateGracefully(process) {
+  let elapsedSeconds = 0;
+  log('Attempting to terminate the process gracefully...');
+  process.kill('SIGTERM');
+
+  return new Promise((resolve) => {
+    const checkInterval = setInterval(() => {
+      elapsedSeconds += TERMINATION_CHECK_INTERVAL_IN_MS / 1000;
+
+      if (!process.killed) {
+        if (elapsedSeconds >= TERMINATION_GRACE_PERIOD_IN_SECONDS) {
+          process.kill('SIGKILL');
+          log('Process did not terminate gracefully within the grace period. Forcing termination.', LOG_LEVELS.WARN);
+          clearInterval(checkInterval);
+          resolve();
+        }
+      } else {
+        log('Process terminated gracefully.');
+        clearInterval(checkInterval);
+        resolve();
+      }
+    }, TERMINATION_CHECK_INTERVAL_IN_MS);
+  });
+}

scripts/check-desktop-runtime-errors/app/system-capture/screen-capture.js

@@ -0,0 +1,59 @@
+import { unlink } from 'fs/promises';
+import { runCommand } from '../../utils/run-command.js';
+import { log, LOG_LEVELS } from '../../utils/log.js';
+import { CURRENT_PLATFORM, SUPPORTED_PLATFORMS } from '../../utils/platform.js';
+import { exists } from '../../utils/io.js';
+
+export async function captureScreen(imagePath) {
+  if (!imagePath) {
+    throw new Error('Path for screenshot not provided');
+  }
+
+  if (await exists(imagePath)) {
+    log(`Screenshot file already exists at ${imagePath}. It will be overwritten.`, LOG_LEVELS.WARN);
+    unlink(imagePath);
+  }
+
+  const platformCommands = {
+    [SUPPORTED_PLATFORMS.MAC]: `screencapture -x ${imagePath}`,
+    [SUPPORTED_PLATFORMS.LINUX]: `import -window root ${imagePath}`,
+    [SUPPORTED_PLATFORMS.WINDOWS]: `powershell -NoProfile -EncodedCommand ${encodeForPowershell(getScreenshotPowershellScript(imagePath))}`,
+  };
+
+  const commandForPlatform = platformCommands[CURRENT_PLATFORM];
+
+  if (!commandForPlatform) {
+    log(`Screenshot capture not supported on: ${CURRENT_PLATFORM}`, LOG_LEVELS.WARN);
+    return;
+  }
+
+  log(`Capturing screenshot to ${imagePath} using command:\n\t> ${commandForPlatform}`);
+
+  const { error } = await runCommand(commandForPlatform);
+  if (error) {
+    log(`Failed to capture screenshot.\n${error}`, LOG_LEVELS.WARN);
+    return;
+  }
+  log(`Captured screenshot to ${imagePath}.`);
+}
+
+function getScreenshotPowershellScript(imagePath) {
+  return `
+    $ProgressPreference = 'SilentlyContinue' # Do not pollute stderr
+    Add-Type -AssemblyName System.Windows.Forms
+    $screenBounds = [System.Windows.Forms.Screen]::PrimaryScreen.Bounds
+
+    $bmp = New-Object System.Drawing.Bitmap $screenBounds.Width, $screenBounds.Height
+    $graphics = [System.Drawing.Graphics]::FromImage($bmp)
+    $graphics.CopyFromScreen([System.Drawing.Point]::Empty, [System.Drawing.Point]::Empty, $screenBounds.Size)
+
+    $bmp.Save('${imagePath}')
+    $graphics.Dispose()
+    $bmp.Dispose()
+  `;
+}
+
+function encodeForPowershell(script) {
+  const buffer = Buffer.from(script, 'utf-16le');
+  return buffer.toString('base64');
+}

scripts/check-desktop-runtime-errors/app/system-capture/window-title-capture.js

@@ -0,0 +1,113 @@
+import { runCommand } from '../../utils/run-command.js';
+import { log, LOG_LEVELS } from '../../utils/log.js';
+import { SUPPORTED_PLATFORMS, CURRENT_PLATFORM } from '../../utils/platform.js';
+
+export async function captureWindowTitles(processId) {
+  if (!processId) { throw new Error('Missing process ID.'); }
+
+  const captureFunction = windowTitleCaptureFunctions[CURRENT_PLATFORM];
+  if (!captureFunction) {
+    log(`Cannot capture window title, unsupported OS: ${CURRENT_PLATFORM}`, LOG_LEVELS.WARN);
+    return undefined;
+  }
+
+  return captureFunction(processId);
+}
+
+const windowTitleCaptureFunctions = {
+  [SUPPORTED_PLATFORMS.MAC]: captureTitlesOnMac,
+  [SUPPORTED_PLATFORMS.LINUX]: captureTitlesOnLinux,
+  [SUPPORTED_PLATFORMS.WINDOWS]: captureTitlesOnWindows,
+};
+
+async function captureTitlesOnWindows(processId) {
+  if (!processId) { throw new Error('Missing process ID.'); }
+
+  const { stdout: tasklistOutput, error } = await runCommand(
+    `tasklist /FI "PID eq ${processId}" /fo list /v`,
+  );
+  if (error) {
+    log(`Failed to retrieve window title.\n${error}`, LOG_LEVELS.WARN);
+    return [];
+  }
+  const match = tasklistOutput.match(/Window Title:\s*(.*)/);
+  if (match && match[1]) {
+    const title = match[1].trim();
+    if (title === 'N/A') {
+      return [];
+    }
+    return [title];
+  }
+  return [];
+}
+
+async function captureTitlesOnLinux(processId) {
+  if (!processId) { throw new Error('Missing process ID.'); }
+
+  const { stdout: windowIdsOutput, error: windowIdError } = await runCommand(
+    `xdotool search --pid '${processId}'`,
+  );
+
+  if (windowIdError || !windowIdsOutput) {
+    return undefined;
+  }
+
+  const windowIds = windowIdsOutput.trim().split('\n');
+
+  const titles = await Promise.all(windowIds.map(async (windowId) => {
+    const { stdout: titleOutput, error: titleError } = await runCommand(
+      `xprop -id ${windowId} | grep "WM_NAME(STRING)" | cut -d '=' -f 2 | sed 's/^[[:space:]]*"\\(.*\\)"[[:space:]]*$/\\1/'`,
+    );
+    if (titleError || !titleOutput) {
+      return undefined;
+    }
+    return titleOutput.trim();
+  }));
+
+  return titles.filter(Boolean);
+}
+
+let hasAssistiveAccessOnMac = true;
+
+async function captureTitlesOnMac(processId) {
+  if (!processId) { throw new Error('Missing process ID.'); }
+  if (!hasAssistiveAccessOnMac) {
+    return [];
+  }
+  const script = `
+      tell application "System Events"
+      try
+        set targetProcess to first process whose unix id is ${processId}
+      on error
+        return
+      end try
+      tell targetProcess
+        if (count of windows) > 0 then
+          set window_name to name of front window
+          return window_name
+        end if
+      end tell
+    end tell
+  `;
+  const argument = script.trim()
+    .split(/[\r\n]+/)
+    .map((line) => `-e '${line.trim()}'`)
+    .join(' ');
+
+  const { stdout: titleOutput, error } = await runCommand(`osascript ${argument}`);
+  if (error) {
+    let errorMessage = '';
+    if (error.includes('-25211')) {
+      errorMessage += 'Capturing window title requires assistive access. You do not have it.\n';
+      hasAssistiveAccessOnMac = false;
+    }
+    errorMessage += error;
+    log(errorMessage, LOG_LEVELS.WARN);
+    return [];
+  }
+  const title = titleOutput?.trim();
+  if (!title) {
+    return [];
+  }
+  return [title];
+}

scripts/check-desktop-runtime-errors/cli-args.js

@@ -0,0 +1,20 @@
+import { log } from './utils/log.js';
+
+const PROCESS_ARGUMENTS = process.argv.slice(2);
+
+export const COMMAND_LINE_FLAGS = Object.freeze({
+  FORCE_REBUILD: '--build',
+  TAKE_SCREENSHOT: '--screenshot',
+});
+
+export function logCurrentArgs() {
+  if (!PROCESS_ARGUMENTS.length) {
+    log('No additional arguments provided.');
+    return;
+  }
+  log(`Arguments: ${PROCESS_ARGUMENTS.join(', ')}`);
+}
+
+export function hasCommandLineFlag(flag) {
+  return PROCESS_ARGUMENTS.includes(flag);
+}

scripts/check-desktop-runtime-errors/config.js

@@ -0,0 +1,7 @@
+import { join } from 'path';
+
+export const DESKTOP_BUILD_COMMAND = 'npm run electron:prebuild && npm run electron:build -- --publish never';
+export const PROJECT_DIR = process.cwd();
+export const DESKTOP_DIST_PATH = join(PROJECT_DIR, 'dist');
+export const APP_EXECUTION_DURATION_IN_SECONDS = 60; // Long enough for CI runners
+export const SCREENSHOT_PATH = join(PROJECT_DIR, 'screenshot.png');

scripts/check-desktop-runtime-errors/index.js

@@ -0,0 +1,3 @@
+import { main } from './main.js';
+
+await main();

scripts/check-desktop-runtime-errors/main.js

@@ -0,0 +1,68 @@
+import { logCurrentArgs, COMMAND_LINE_FLAGS, hasCommandLineFlag } from './cli-args.js';
+import { log, die } from './utils/log.js';
+import { ensureNpmProjectDir, npmInstall, npmBuild } from './utils/npm.js';
+import { clearAppLogFile } from './app/app-logs.js';
+import { checkForErrors } from './app/check-for-errors.js';
+import { runApplication } from './app/runner.js';
+import { CURRENT_PLATFORM, SUPPORTED_PLATFORMS } from './utils/platform.js';
+import { prepareLinuxApp } from './app/extractors/linux.js';
+import { prepareWindowsApp } from './app/extractors/windows.js';
+import { prepareMacOsApp } from './app/extractors/macos.js';
+import {
+  DESKTOP_BUILD_COMMAND,
+  PROJECT_DIR,
+  DESKTOP_DIST_PATH,
+  APP_EXECUTION_DURATION_IN_SECONDS,
+  SCREENSHOT_PATH,
+} from './config.js';
+
+export async function main() {
+  logCurrentArgs();
+  await ensureNpmProjectDir(PROJECT_DIR);
+  await npmInstall(PROJECT_DIR);
+  await npmBuild(
+    PROJECT_DIR,
+    DESKTOP_BUILD_COMMAND,
+    DESKTOP_DIST_PATH,
+    hasCommandLineFlag(COMMAND_LINE_FLAGS.FORCE_REBUILD),
+  );
+  await clearAppLogFile(PROJECT_DIR);
+  const {
+    stderr, stdout, isCrashed, windowTitles,
+  } = await extractAndRun();
+  if (stdout) {
+    log(`Output (stdout) from application execution:\n${stdout}`);
+  }
+  if (isCrashed) {
+    die('The application encountered an error during its execution.');
+  }
+  await checkForErrors(stderr, windowTitles, PROJECT_DIR);
+  log('🥳🎈 Success! Application completed without any runtime errors.');
+  process.exit(0);
+}
+
+async function extractAndRun() {
+  const extractors = {
+    [SUPPORTED_PLATFORMS.MAC]: () => prepareMacOsApp(DESKTOP_DIST_PATH),
+    [SUPPORTED_PLATFORMS.LINUX]: () => prepareLinuxApp(DESKTOP_DIST_PATH),
+    [SUPPORTED_PLATFORMS.WINDOWS]: () => prepareWindowsApp(DESKTOP_DIST_PATH),
+  };
+  const extractor = extractors[CURRENT_PLATFORM];
+  if (!extractor) {
+    throw new Error(`Platform not supported: ${CURRENT_PLATFORM}`);
+  }
+  const { appExecutablePath, cleanup } = await extractor();
+  try {
+    return await runApplication(
+      appExecutablePath,
+      APP_EXECUTION_DURATION_IN_SECONDS,
+      hasCommandLineFlag(COMMAND_LINE_FLAGS.TAKE_SCREENSHOT),
+      SCREENSHOT_PATH,
+    );
+  } finally {
+    if (cleanup) {
+      log('Cleaning up post-execution resources...');
+      await cleanup();
+    }
+  }
+}

scripts/check-desktop-runtime-errors/utils/io.js

@@ -0,0 +1,48 @@
+import { extname, join } from 'path';
+import { readdir, access } from 'fs/promises';
+import { constants } from 'fs';
+import { log, die, LOG_LEVELS } from './log.js';
+
+export async function findSingleFileByExtension(extension, directory) {
+  if (!directory) { throw new Error('Missing directory'); }
+  if (!extension) { throw new Error('Missing file extension'); }
+
+  if (!await exists(directory)) {
+    die(`Directory does not exist: ${directory}`);
+    return [];
+  }
+
+  const directoryContents = await readdir(directory);
+  const foundFileNames = directoryContents.filter((file) => extname(file) === `.${extension}`);
+  const withoutUninstaller = foundFileNames.filter(
+    (fileName) => !fileName.toLowerCase().includes('uninstall'), // NSIS build has `Uninstall {app-name}.exe`
+  );
+  if (!withoutUninstaller.length) {
+    die(`No ${extension} found in ${directory} directory.`);
+  }
+  if (withoutUninstaller.length > 1) {
+    log(`Found multiple ${extension} files: ${withoutUninstaller.join(', ')}. Using first occurrence`, LOG_LEVELS.WARN);
+  }
+  return {
+    absolutePath: join(directory, withoutUninstaller[0]),
+  };
+}
+
+export async function exists(path) {
+  if (!path) { throw new Error('Missing path'); }
+  try {
+    await access(path, constants.F_OK);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+export async function isDirMissingOrEmpty(dir) {
+  if (!dir) { throw new Error('Missing directory'); }
+  if (!await exists(dir)) {
+    return true;
+  }
+  const contents = await readdir(dir);
+  return contents.length === 0;
+}

scripts/check-desktop-runtime-errors/utils/log.js

@@ -0,0 +1,39 @@
+export const LOG_LEVELS = Object.freeze({
+  INFO: 'INFO',
+  WARN: 'WARN',
+  ERROR: 'ERROR',
+});
+
+export function log(message, level = LOG_LEVELS.INFO) {
+  const timestamp = new Date().toISOString();
+  const config = LOG_LEVEL_CONFIG[level] || LOG_LEVEL_CONFIG[LOG_LEVELS.INFO];
+  const formattedMessage = `[${timestamp}][${config.color}${level}${COLOR_CODES.RESET}] ${message}`;
+  config.method(formattedMessage);
+}
+
+export function die(message) {
+  log(message, LOG_LEVELS.ERROR);
+  process.exit(1);
+}
+
+const COLOR_CODES = {
+  RESET: '\x1b[0m',
+  LIGHT_RED: '\x1b[91m',
+  YELLOW: '\x1b[33m',
+  LIGHT_BLUE: '\x1b[94m',
+};
+
+const LOG_LEVEL_CONFIG = {
+  [LOG_LEVELS.INFO]: {
+    color: COLOR_CODES.LIGHT_BLUE,
+    method: console.log,
+  },
+  [LOG_LEVELS.WARN]: {
+    color: COLOR_CODES.YELLOW,
+    method: console.warn,
+  },
+  [LOG_LEVELS.ERROR]: {
+    color: COLOR_CODES.LIGHT_RED,
+    method: console.error,
+  },
+};

scripts/check-desktop-runtime-errors/utils/npm.js

@@ -0,0 +1,87 @@
+import { join } from 'path';
+import { rmdir, readFile } from 'fs/promises';
+import { exists, isDirMissingOrEmpty } from './io.js';
+import { runCommand } from './run-command.js';
+import { LOG_LEVELS, die, log } from './log.js';
+
+export async function ensureNpmProjectDir(projectDir) {
+  if (!projectDir) { throw new Error('missing project directory'); }
+  if (!await exists(join(projectDir, 'package.json'))) {
+    die(`'package.json' not found in project directory: ${projectDir}`);
+  }
+}
+
+export async function npmInstall(projectDir) {
+  if (!projectDir) { throw new Error('missing project directory'); }
+  const npmModulesPath = join(projectDir, 'node_modules');
+  if (!await isDirMissingOrEmpty(npmModulesPath)) {
+    log(`Directory "${npmModulesPath}" exists and has content. Skipping \`npm install\`.`);
+    return;
+  }
+  log('Starting dependency installation...');
+  const { error } = await runCommand('npm install --loglevel=error', {
+    stdio: 'inherit',
+    cwd: projectDir,
+  });
+  if (error) {
+    die(error);
+  }
+}
+
+export async function npmBuild(projectDir, buildCommand, distDir, forceRebuild) {
+  if (!projectDir) { throw new Error('missing project directory'); }
+  if (!buildCommand) { throw new Error('missing build command'); }
+  if (!distDir) { throw new Error('missing distribution directory'); }
+
+  const isMissingBuild = await isDirMissingOrEmpty(distDir);
+
+  if (!isMissingBuild && !forceRebuild) {
+    log(`Directory "${distDir}" exists and has content. Skipping build: '${buildCommand}'.`);
+    return;
+  }
+
+  if (forceRebuild) {
+    log(`Removing directory "${distDir}" for a clean build (triggered by --build flag).`);
+    await rmdir(distDir, { recursive: true });
+  }
+
+  log('Starting project build...');
+  const { error } = await runCommand(buildCommand, {
+    stdio: 'inherit',
+    cwd: projectDir,
+  });
+  if (error) {
+    log(error, LOG_LEVELS.WARN); // Cannot disable Vue CLI errors, stderr contains false-positives.
+  }
+}
+
+export async function getAppName(projectDir) {
+  if (!projectDir) { throw new Error('missing project directory'); }
+  const packageData = await readPackageJsonContents(projectDir);
+  try {
+    const packageJson = JSON.parse(packageData);
+    if (!packageJson.name) {
+      die(`The 'package.json' file doesn't specify a name: ${packageData}`);
+    }
+    return packageJson.name;
+  } catch (error) {
+    die(`Unable to parse 'package.json'. Error: ${error}\nContent: ${packageData}`, LOG_LEVELS.ERROR);
+    return undefined;
+  }
+}
+
+async function readPackageJsonContents(projectDir) {
+  if (!projectDir) { throw new Error('missing project directory'); }
+  const packagePath = join(projectDir, 'package.json');
+  if (!await exists(packagePath)) {
+    die(`'package.json' file not found at ${packagePath}`);
+  }
+  try {
+    const packageData = await readFile(packagePath, 'utf8');
+    return packageData;
+  } catch (error) {
+    log(`Error reading 'package.json' from ${packagePath}.`, LOG_LEVELS.ERROR);
+    die(`Error detail: ${error}`, LOG_LEVELS.ERROR);
+    throw error;
+  }
+}

scripts/check-desktop-runtime-errors/utils/platform.js

@@ -0,0 +1,9 @@
+import { platform } from 'os';
+
+export const SUPPORTED_PLATFORMS = {
+  MAC: 'darwin',
+  LINUX: 'linux',
+  WINDOWS: 'win32',
+};
+
+export const CURRENT_PLATFORM = platform();

scripts/check-desktop-runtime-errors/utils/run-command.js

@@ -0,0 +1,44 @@
+import { exec } from 'child_process';
+import { indentText } from './text.js';
+
+const TIMEOUT_IN_SECONDS = 180;
+const MAX_OUTPUT_BUFFER_SIZE = 1024 * 1024; // 1 MB
+
+export function runCommand(commandString, options) {
+  return new Promise((resolve) => {
+    options = {
+      cwd: process.cwd(),
+      timeout: TIMEOUT_IN_SECONDS * 1000,
+      maxBuffer: MAX_OUTPUT_BUFFER_SIZE * 2,
+      ...options,
+    };
+
+    exec(commandString, options, (error, stdout, stderr) => {
+      let errorText;
+      if (error || stderr?.length > 0) {
+        errorText = formatError(commandString, error, stdout, stderr);
+      }
+      resolve({
+        stdout,
+        error: errorText,
+      });
+    });
+  });
+}
+
+function formatError(commandString, error, stdout, stderr) {
+  const errorParts = [
+    'Error while running command.',
+    `Command:\n${indentText(commandString, 1)}`,
+  ];
+  if (error?.toString().trim()) {
+    errorParts.push(`Error:\n${indentText(error.toString(), 1)}`);
+  }
+  if (stderr?.toString().trim()) {
+    errorParts.push(`stderr:\n${indentText(stderr, 1)}`);
+  }
+  if (stdout?.toString().trim()) {
+    errorParts.push(`stdout:\n${indentText(stdout, 1)}`);
+  }
+  return errorParts.join('\n---\n');
+}

scripts/check-desktop-runtime-errors/utils/text.js

@@ -0,0 +1,19 @@
+export function indentText(text, indentLevel = 1) {
+  validateText(text);
+  const indentation = '\t'.repeat(indentLevel);
+  return splitTextIntoLines(text)
+    .map((line) => (line ? `${indentation}${line}` : line))
+    .join('\n');
+}
+
+export function splitTextIntoLines(text) {
+  validateText(text);
+  return text
+    .split(/[\r\n]+/);
+}
+
+function validateText(text) {
+  if (typeof text !== 'string') {
+    throw new Error(`text is not a string. It is: ${typeof text}\n${text}`);
+  }
+}

scripts/logo-update.js

@@ -8,7 +8,7 @@ class Paths {
   constructor(selfDirectory) {
     const projectRoot = resolve(selfDirectory, '../');
     this.sourceImage = join(projectRoot, 'img/logo.svg');
-    this.publicDirectory = join(projectRoot, 'public');
+    this.publicDirectory = join(projectRoot, 'src/presentation/public');
     this.electronBuildDirectory = join(projectRoot, 'build');
   }
 
@@ -61,7 +61,7 @@ async function updateDesktopIcons(sourceImage, electronIconsDir) {
   await ensureFolderExists(electronIconsDir);
   const temporaryDir = await mkdtemp('icon-');
   const temporaryPngFile = join(temporaryDir, 'icon.png');
-  console.log(`Converting from SVG (${sourceImage}) to PNG: ${temporaryPngFile}`); // required by icon-builder
+  console.log(`Converting from SVG (${sourceImage}) to PNG: ${temporaryPngFile}`); // required by `icon-builder`
   await runCommand(
     'npx',
     'svgexport',

src/TypeHelpers.ts

@@ -0,0 +1,15 @@
+export type Constructible<T, TArgs extends unknown[] = never> = {
+  prototype: T;
+  apply: (this: unknown, args: TArgs) => void;
+};
+
+export type PropertyKeys<T> = {
+  [K in keyof T]: T[K] extends (...args: unknown[]) => unknown ? never : K;
+}[keyof T];
+
+export type ConstructorArguments<T> =
+  T extends new (...args: infer U) => unknown ? U : never;
+
+export type FunctionKeys<T> = {
+  [K in keyof T]: T[K] extends (...args: unknown[]) => unknown ? K : never;
+}[keyof T];

src/application/Context/ApplicationContextFactory.ts

@@ -1,8 +1,8 @@
 import { IApplicationContext } from '@/application/Context/IApplicationContext';
 import { OperatingSystem } from '@/domain/OperatingSystem';
 import { IApplication } from '@/domain/IApplication';
-import { Environment } from '../Environment/Environment';
-import { IEnvironment } from '../Environment/IEnvironment';
+import { Environment } from '@/infrastructure/Environment/Environment';
+import { IEnvironment } from '@/infrastructure/Environment/IEnvironment';
 import { IApplicationFactory } from '../IApplicationFactory';
 import { ApplicationFactory } from '../ApplicationFactory';
 import { ApplicationContext } from './ApplicationContext';

src/application/Environment/Environment.ts

@@ -1,89 +0,0 @@
-import { OperatingSystem } from '@/domain/OperatingSystem';
-import { BrowserOsDetector } from './BrowserOs/BrowserOsDetector';
-import { IBrowserOsDetector } from './BrowserOs/IBrowserOsDetector';
-import { IEnvironment } from './IEnvironment';
-
-export interface IEnvironmentVariables {
-  readonly window: Window & typeof globalThis;
-  readonly process: NodeJS.Process;
-  readonly navigator: Navigator;
-}
-
-export class Environment implements IEnvironment {
-  public static readonly CurrentEnvironment: IEnvironment = new Environment({
-    window,
-    process: typeof process !== 'undefined' ? process /* electron only */ : undefined,
-    navigator,
-  });
-
-  public readonly isDesktop: boolean;
-
-  public readonly os: OperatingSystem;
-
-  protected constructor(
-    variables: IEnvironmentVariables,
-    browserOsDetector: IBrowserOsDetector = new BrowserOsDetector(),
-  ) {
-    if (!variables) {
-      throw new Error('variables is null or empty');
-    }
-    this.isDesktop = isDesktop(variables);
-    if (this.isDesktop) {
-      this.os = getDesktopOsType(getProcessPlatform(variables));
-    } else {
-      const userAgent = getUserAgent(variables);
-      this.os = !userAgent ? undefined : browserOsDetector.detect(userAgent);
-    }
-  }
-}
-
-function getUserAgent(variables: IEnvironmentVariables): string {
-  if (!variables.window || !variables.window.navigator) {
-    return undefined;
-  }
-  return variables.window.navigator.userAgent;
-}
-
-function getProcessPlatform(variables: IEnvironmentVariables): string {
-  if (!variables.process || !variables.process.platform) {
-    return undefined;
-  }
-  return variables.process.platform;
-}
-
-function getDesktopOsType(processPlatform: string): OperatingSystem | undefined {
-  // https://nodejs.org/api/process.html#process_process_platform
-  switch (processPlatform) {
-    case 'darwin':
-      return OperatingSystem.macOS;
-    case 'win32':
-      return OperatingSystem.Windows;
-    case 'linux':
-      return OperatingSystem.Linux;
-    default:
-      return undefined;
-  }
-}
-
-function isDesktop(variables: IEnvironmentVariables): boolean {
-  // More: https://github.com/electron/electron/issues/2288
-  // Renderer process
-  if (variables.window
-    && variables.window.process
-    && variables.window.process.type === 'renderer') {
-    return true;
-  }
-  // Main process
-  if (variables.process
-    && variables.process.versions
-    && Boolean(variables.process.versions.electron)) {
-    return true;
-  }
-  // Detect the user agent when the `nodeIntegration` option is set to true
-  if (variables.navigator
-    && variables.navigator.userAgent
-    && variables.navigator.userAgent.includes('Electron')) {
-    return true;
-  }
-  return false;
-}

src/application/Environment/IEnvironment.ts

@@ -1,6 +0,0 @@
-import { OperatingSystem } from '@/domain/OperatingSystem';
-
-export interface IEnvironment {
-  readonly isDesktop: boolean;
-  readonly os: OperatingSystem;
-}

src/application/Parser/ApplicationParser.ts

@@ -7,16 +7,19 @@ import MacOsData from '@/application/collections/macos.yaml';
 import LinuxData from '@/application/collections/linux.yaml';
 import { parseProjectInformation } from '@/application/Parser/ProjectInformationParser';
 import { Application } from '@/domain/Application';
+import { IAppMetadata } from '@/infrastructure/Metadata/IAppMetadata';
+import { AppMetadataFactory } from '@/infrastructure/Metadata/AppMetadataFactory';
 import { parseCategoryCollection } from './CategoryCollectionParser';
 
 export function parseApplication(
-  parser = CategoryCollectionParser,
-  processEnv: NodeJS.ProcessEnv = process.env,
+  categoryParser = parseCategoryCollection,
+  informationParser = parseProjectInformation,
+  metadata: IAppMetadata = AppMetadataFactory.Current.instance,
   collectionsData = PreParsedCollections,
 ): IApplication {
   validateCollectionsData(collectionsData);
-  const information = parseProjectInformation(processEnv);
-  const collections = collectionsData.map((collection) => parser(collection, information));
+  const information = informationParser(metadata);
+  const collections = collectionsData.map((collection) => categoryParser(collection, information));
   const app = new Application(information, collections);
   return app;
 }
@@ -24,16 +27,12 @@ export function parseApplication(
 export type CategoryCollectionParserType
     = (file: CollectionData, info: IProjectInformation) => ICategoryCollection;
 
-const CategoryCollectionParser: CategoryCollectionParserType = (file, info) => {
-  return parseCategoryCollection(file, info);
-};
-
 const PreParsedCollections: readonly CollectionData [] = [
   WindowsData, MacOsData, LinuxData,
 ];
 
 function validateCollectionsData(collections: readonly CollectionData[]) {
-  if (!collections || !collections.length) {
+  if (!collections?.length) {
     throw new Error('missing collections');
   }
   if (collections.some((collection) => !collection)) {

src/application/Parser/ProjectInformationParser.ts

@@ -1,28 +1,29 @@
 import { IProjectInformation } from '@/domain/IProjectInformation';
 import { ProjectInformation } from '@/domain/ProjectInformation';
+import { IAppMetadata } from '@/infrastructure/Metadata/IAppMetadata';
 import { Version } from '@/domain/Version';
+import { AppMetadataFactory } from '@/infrastructure/Metadata/AppMetadataFactory';
+import { ConstructorArguments } from '@/TypeHelpers';
 
-export function parseProjectInformation(
-  environment: NodeJS.ProcessEnv | VueAppEnvironment,
+export function
+parseProjectInformation(
+  metadata: IAppMetadata = AppMetadataFactory.Current.instance,
+  createProjectInformation: ProjectInformationFactory = (
+    ...args
+  ) => new ProjectInformation(...args),
 ): IProjectInformation {
-  const version = new Version(environment[VueAppEnvironmentKeys.VUE_APP_VERSION]);
-  return new ProjectInformation(
-    environment[VueAppEnvironmentKeys.VUE_APP_NAME],
+  const version = new Version(
+    metadata.version,
+  );
+  return createProjectInformation(
+    metadata.name,
     version,
-    environment[VueAppEnvironmentKeys.VUE_APP_SLOGAN],
-    environment[VueAppEnvironmentKeys.VUE_APP_REPOSITORY_URL],
-    environment[VueAppEnvironmentKeys.VUE_APP_HOMEPAGE_URL],
+    metadata.slogan,
+    metadata.repositoryUrl,
+    metadata.homepageUrl,
   );
 }
 
-export const VueAppEnvironmentKeys = {
-  VUE_APP_VERSION: 'VUE_APP_VERSION',
-  VUE_APP_NAME: 'VUE_APP_NAME',
-  VUE_APP_SLOGAN: 'VUE_APP_SLOGAN',
-  VUE_APP_REPOSITORY_URL: 'VUE_APP_REPOSITORY_URL',
-  VUE_APP_HOMEPAGE_URL: 'VUE_APP_HOMEPAGE_URL',
-} as const;
-
-export type VueAppEnvironment = {
-  [K in keyof typeof VueAppEnvironmentKeys]: string;
-};
+export type ProjectInformationFactory = (
+  ...args: ConstructorArguments<typeof ProjectInformation>
+) => IProjectInformation;

src/application/collections/windows.yaml

@@ -4908,7 +4908,7 @@ actions:
                                 reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU" /v "NoAutoUpdate" /t "REG_DWORD" /d "1" /f
                                 reg add "HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU" /v "AUOptions" /t "REG_DWORD" /d "3" /f
                                 reg delete "HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU" /v "ScheduledInstallDay" /f 2>nul
-                                reg delete "HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU" /v "ScheduledInstallTime /f 2>nul
+                                reg delete "HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU" /v "ScheduledInstallTime" /f 2>nul
                     -
                         function: DisableService
                         parameters:

src/infrastructure/CodeRunner.ts

@@ -1,26 +1,27 @@
-import os from 'os';
-import path from 'path';
-import fs from 'fs';
-// eslint-disable-next-line camelcase
-import child_process from 'child_process';
-import { Environment } from '@/application/Environment/Environment';
+import { Environment } from '@/infrastructure/Environment/Environment';
 import { OperatingSystem } from '@/domain/OperatingSystem';
 
 export class CodeRunner {
   constructor(
-    private readonly node = getNodeJs(),
     private readonly environment = Environment.CurrentEnvironment,
   ) {
+    if (!environment.system) {
+      throw new Error('missing system operations');
+    }
   }
 
   public async runCode(code: string, folderName: string, fileExtension: string): Promise<void> {
-    const dir = this.node.path.join(this.node.os.tmpdir(), folderName);
-    await this.node.fs.promises.mkdir(dir, { recursive: true });
-    const filePath = this.node.path.join(dir, `run.${fileExtension}`);
-    await this.node.fs.promises.writeFile(filePath, code);
-    await this.node.fs.promises.chmod(filePath, '755');
+    const { system } = this.environment;
+    const dir = system.location.combinePaths(
+      system.operatingSystem.getTempDirectory(),
+      folderName,
+    );
+    await system.fileSystem.createDirectory(dir, true);
+    const filePath = system.location.combinePaths(dir, `run.${fileExtension}`);
+    await system.fileSystem.writeToFile(filePath, code);
+    await system.fileSystem.setFilePermissions(filePath, '755');
     const command = getExecuteCommand(filePath, this.environment);
-    this.node.child_process.exec(command);
+    system.command.execute(command);
   }
 }
 
@@ -39,43 +40,3 @@ function getExecuteCommand(scriptPath: string, environment: Environment): string
       throw Error(`unsupported os: ${OperatingSystem[environment.os]}`);
   }
 }
-
-function getNodeJs(): INodeJs {
-  return {
-    os, path, fs, child_process,
-  };
-}
-
-export interface INodeJs {
-  os: INodeOs;
-  path: INodePath;
-  fs: INodeFs;
-  // eslint-disable-next-line camelcase
-  child_process: INodeChildProcess;
-}
-
-export interface INodeOs {
-  tmpdir(): string;
-}
-
-export interface INodePath {
-  join(...paths: string[]): string;
-}
-
-export interface INodeChildProcess {
-  exec(command: string): void;
-}
-
-export interface INodeFs {
-  readonly promises: INodeFsPromises;
-}
-
-interface INodeFsPromisesMakeDirectoryOptions {
-  recursive?: boolean;
-}
-
-interface INodeFsPromises { // https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/node/v13/fs.d.ts
-  chmod(path: string, mode: string | number): Promise<void>;
-  mkdir(path: string, options: INodeFsPromisesMakeDirectoryOptions): Promise<string>;
-  writeFile(path: string, data: string): Promise<void>;
-}

src/infrastructure/Environment/Environment.ts

@@ -0,0 +1,49 @@
+import { OperatingSystem } from '@/domain/OperatingSystem';
+import { ISystemOperations } from '@/infrastructure/Environment/SystemOperations/ISystemOperations';
+import { BrowserOsDetector } from './BrowserOs/BrowserOsDetector';
+import { IBrowserOsDetector } from './BrowserOs/IBrowserOsDetector';
+import { IEnvironment } from './IEnvironment';
+import { WindowVariables } from './WindowVariables';
+import { validateWindowVariables } from './WindowVariablesValidator';
+
+export class Environment implements IEnvironment {
+  public static readonly CurrentEnvironment: IEnvironment = new Environment(window);
+
+  public readonly isDesktop: boolean;
+
+  public readonly os: OperatingSystem | undefined;
+
+  public readonly system: ISystemOperations | undefined;
+
+  protected constructor(
+    window: Partial<Window>,
+    browserOsDetector: IBrowserOsDetector = new BrowserOsDetector(),
+    windowValidator: WindowValidator = validateWindowVariables,
+  ) {
+    if (!window) {
+      throw new Error('missing window');
+    }
+    windowValidator(window);
+    this.isDesktop = isDesktop(window);
+    if (this.isDesktop) {
+      this.os = window?.os;
+    } else {
+      this.os = undefined;
+      const userAgent = getUserAgent(window);
+      if (userAgent) {
+        this.os = browserOsDetector.detect(userAgent);
+      }
+    }
+    this.system = window?.system;
+  }
+}
+
+function getUserAgent(window: Partial<Window>): string {
+  return window?.navigator?.userAgent;
+}
+
+function isDesktop(window: Partial<WindowVariables>): boolean {
+  return window?.isDesktop === true;
+}
+
+export type WindowValidator = typeof validateWindowVariables;

src/infrastructure/Environment/IEnvironment.ts

@@ -0,0 +1,8 @@
+import { OperatingSystem } from '@/domain/OperatingSystem';
+import { ISystemOperations } from '@/infrastructure/Environment/SystemOperations/ISystemOperations';
+
+export interface IEnvironment {
+  readonly isDesktop: boolean;
+  readonly os: OperatingSystem | undefined;
+  readonly system: ISystemOperations | undefined;
+}

src/infrastructure/Environment/SystemOperations/ISystemOperations.ts

@@ -0,0 +1,24 @@
+export interface ISystemOperations {
+  readonly operatingSystem: IOperatingSystemOps;
+  readonly location: ILocationOps;
+  readonly fileSystem: IFileSystemOps;
+  readonly command: ICommandOps;
+}
+
+export interface IOperatingSystemOps {
+  getTempDirectory(): string;
+}
+
+export interface ILocationOps {
+  combinePaths(...pathSegments: string[]): string;
+}
+
+export interface ICommandOps {
+  execute(command: string): void;
+}
+
+export interface IFileSystemOps {
+  setFilePermissions(filePath: string, mode: string | number): Promise<void>;
+  createDirectory(directoryPath: string, isRecursive?: boolean): Promise<string>;
+  writeToFile(filePath: string, data: string): Promise<void>;
+}

src/infrastructure/Environment/SystemOperations/NodeSystemOperations.ts

@@ -0,0 +1,33 @@
+import { tmpdir } from 'os';
+import { join } from 'path';
+import { chmod, mkdir, writeFile } from 'fs/promises';
+import { exec } from 'child_process';
+import { ISystemOperations } from './ISystemOperations';
+
+export function createNodeSystemOperations(): ISystemOperations {
+  return {
+    operatingSystem: {
+      getTempDirectory: () => tmpdir(),
+    },
+    location: {
+      combinePaths: (...pathSegments) => join(...pathSegments),
+    },
+    fileSystem: {
+      setFilePermissions: (
+        filePath: string,
+        mode: string | number,
+      ) => chmod(filePath, mode),
+      createDirectory: (
+        directoryPath: string,
+        isRecursive?: boolean,
+      ) => mkdir(directoryPath, { recursive: isRecursive }),
+      writeToFile: (
+        filePath: string,
+        data: string,
+      ) => writeFile(filePath, data),
+    },
+    command: {
+      execute: (command) => exec(command),
+    },
+  };
+}

src/infrastructure/Environment/WindowVariables.ts

@@ -0,0 +1,13 @@
+import { OperatingSystem } from '@/domain/OperatingSystem';
+import { ISystemOperations } from './SystemOperations/ISystemOperations';
+
+export type WindowVariables = {
+  system: ISystemOperations;
+  isDesktop: boolean;
+  os: OperatingSystem;
+};
+
+declare global {
+  // eslint-disable-next-line @typescript-eslint/no-empty-interface
+  interface Window extends WindowVariables { }
+}

src/infrastructure/Environment/WindowVariablesValidator.ts

@@ -0,0 +1,76 @@
+import { OperatingSystem } from '@/domain/OperatingSystem';
+import { PropertyKeys } from '@/TypeHelpers';
+import { WindowVariables } from './WindowVariables';
+
+/**
+ * Checks for consistency in runtime environment properties injected by Electron preloader.
+ */
+export function validateWindowVariables(variables: Partial<WindowVariables>) {
+  if (!variables) {
+    throw new Error('missing variables');
+  }
+  if (!isObject(variables)) {
+    throw new Error(`window is not an object but ${typeof variables}`);
+  }
+  const errors = [...testEveryProperty(variables)];
+  if (errors.length > 0) {
+    throw new Error(errors.join('\n'));
+  }
+}
+
+function* testEveryProperty(variables: Partial<WindowVariables>): Iterable<string> {
+  const tests: {
+    [K in PropertyKeys<WindowVariables>]: boolean;
+  } = {
+    os: testOperatingSystem(variables.os),
+    isDesktop: testIsDesktop(variables.isDesktop),
+    system: testSystem(variables),
+  };
+
+  for (const [propertyName, testResult] of Object.entries(tests)) {
+    if (!testResult) {
+      const propertyValue = variables[propertyName as keyof WindowVariables];
+      yield `Unexpected ${propertyName} (${typeof propertyValue})`;
+    }
+  }
+}
+
+function testOperatingSystem(os: unknown): boolean {
+  if (os === undefined) {
+    return true;
+  }
+  if (!isNumber(os)) {
+    return false;
+  }
+  return Object
+    .values(OperatingSystem)
+    .includes(os);
+}
+
+function testSystem(variables: Partial<WindowVariables>): boolean {
+  if (!variables.isDesktop) {
+    return true;
+  }
+  return variables.system !== undefined && isObject(variables.system);
+}
+
+function testIsDesktop(isDesktop: unknown): boolean {
+  if (isDesktop === undefined) {
+    return true;
+  }
+  return isBoolean(isDesktop);
+}
+
+function isNumber(variable: unknown): variable is number {
+  return typeof variable === 'number';
+}
+
+function isBoolean(variable: unknown): variable is boolean {
+  return typeof variable === 'boolean';
+}
+
+function isObject(variable: unknown): variable is object {
+  return typeof variable === 'object'
+    && variable !== null // the data type of null is an object
+    && !Array.isArray(variable);
+}

src/infrastructure/Events/EventSubscriptionCollection.ts

@@ -1,6 +1,7 @@
 import { IEventSubscription } from './IEventSource';
+import { IEventSubscriptionCollection } from './IEventSubscriptionCollection';
 
-export class EventSubscriptionCollection {
+export class EventSubscriptionCollection implements IEventSubscriptionCollection {
   private readonly subscriptions = new Array<IEventSubscription>();
 
   public register(...subscriptions: IEventSubscription[]) {

src/infrastructure/Events/IEventSubscriptionCollection.ts

@@ -0,0 +1,7 @@
+import { IEventSubscription } from '@/infrastructure/Events/IEventSource';
+
+export interface IEventSubscriptionCollection {
+  register(...subscriptions: IEventSubscription[]);
+
+  unsubscribeAll();
+}

src/infrastructure/Metadata/AppMetadataFactory.ts

@@ -0,0 +1,18 @@
+import { IAppMetadata } from './IAppMetadata';
+import { IAppMetadataFactory } from './IAppMetadataFactory';
+import { validateMetadata } from './MetadataValidator';
+import { ViteAppMetadata } from './Vite/ViteAppMetadata';
+
+export class AppMetadataFactory implements IAppMetadataFactory {
+  public static readonly Current = new AppMetadataFactory();
+
+  public readonly instance: IAppMetadata;
+
+  protected constructor(validator: MetadataValidator = validateMetadata) {
+    const metadata = new ViteAppMetadata();
+    validator(metadata);
+    this.instance = metadata;
+  }
+}
+
+export type MetadataValidator = typeof validateMetadata;

src/infrastructure/Metadata/IAppMetadata.ts

@@ -0,0 +1,13 @@
+/**
+ * Represents essential metadata about the application.
+ *
+ * Designed to decouple the process of retrieving metadata
+ * (e.g., from the build environment) from the rest of the application.
+ */
+export interface IAppMetadata {
+  readonly version: string;
+  readonly name: string;
+  readonly slogan: string;
+  readonly repositoryUrl: string;
+  readonly homepageUrl: string;
+}

src/infrastructure/Metadata/IAppMetadataFactory.ts

@@ -0,0 +1,5 @@
+import { IAppMetadata } from './IAppMetadata';
+
+export interface IAppMetadataFactory {
+  readonly instance: IAppMetadata;
+}

src/infrastructure/Metadata/MetadataValidator.ts

@@ -0,0 +1,50 @@
+import { IAppMetadata } from '@/infrastructure/Metadata/IAppMetadata';
+
+/* Validation is externalized to keep the environment objects simple */
+export function validateMetadata(metadata: IAppMetadata): void {
+  if (!metadata) {
+    throw new Error('missing metadata');
+  }
+  const keyValues = capturePropertyValues(metadata);
+  if (!Object.keys(keyValues).length) {
+    throw new Error('Unable to capture metadata key/value pairs');
+  }
+  const keysMissingValue = getMissingMetadataKeys(keyValues);
+  if (keysMissingValue.length > 0) {
+    throw new Error(`Metadata keys missing: ${keysMissingValue.join(', ')}`);
+  }
+}
+
+function getMissingMetadataKeys(keyValuePairs: Record<string, unknown>): string[] {
+  return Object.entries(keyValuePairs)
+    .reduce((acc, [key, value]) => {
+      if (!value) {
+        acc.push(key);
+      }
+      return acc;
+    }, new Array<string>());
+}
+
+/**
+ * Captures values of properties and getters from the provided instance.
+ * Necessary because code transformations can make class getters non-enumerable during bundling.
+ * This ensures that even if getters are non-enumerable, their values are still captured and used.
+ */
+function capturePropertyValues(instance: unknown): Record<string, unknown> {
+  const obj: Record<string, unknown> = {};
+  const descriptors = Object.getOwnPropertyDescriptors(instance.constructor.prototype);
+
+  // Capture regular properties from the instance
+  for (const [key, value] of Object.entries(instance)) {
+    obj[key] = value;
+  }
+
+  // Capture getter properties from the instance's prototype
+  for (const [key, descriptor] of Object.entries(descriptors)) {
+    if (typeof descriptor.get === 'function') {
+      obj[key] = descriptor.get.call(instance);
+    }
+  }
+
+  return obj;
+}

src/infrastructure/Metadata/Vite/ViteAppMetadata.ts

@@ -0,0 +1,29 @@
+import { IAppMetadata } from '../IAppMetadata';
+
+/**
+ * Provides the application's metadata using Vite's environment variables.
+ */
+export class ViteAppMetadata implements IAppMetadata {
+  // Ensure the use of import.meta.env prefix for the following properties.
+  // Vue will replace these statically during production builds.
+
+  public get version(): string {
+    return import.meta.env.VITE_APP_VERSION;
+  }
+
+  public get name(): string {
+    return import.meta.env.VITE_APP_NAME;
+  }
+
+  public get slogan(): string {
+    return import.meta.env.VITE_APP_SLOGAN;
+  }
+
+  public get repositoryUrl(): string {
+    return import.meta.env.VITE_APP_REPOSITORY_URL;
+  }
+
+  public get homepageUrl(): string {
+    return import.meta.env.VITE_APP_HOMEPAGE_URL;
+  }
+}

src/infrastructure/Metadata/Vite/ViteEnvironmentKeys.ts

@@ -0,0 +1,8 @@
+// Only variables prefixed with VITE_ are exposed to Vite-processed code
+export const VITE_ENVIRONMENT_KEYS = {
+  VERSION: 'VITE_APP_VERSION',
+  NAME: 'VITE_APP_NAME',
+  SLOGAN: 'VITE_APP_SLOGAN',
+  REPOSITORY_URL: 'VITE_APP_REPOSITORY_URL',
+  HOMEPAGE_URL: 'VITE_APP_HOMEPAGE_URL',
+} as const;

src/infrastructure/Metadata/Vite/vite-env.d.ts

@@ -0,0 +1,11 @@
+/// <reference types="vite/client" />
+
+import { VITE_ENVIRONMENT_KEYS } from './ViteEnvironmentKeys';
+
+export type ViteEnvironmentVariables = {
+  readonly [K in keyof typeof VITE_ENVIRONMENT_KEYS]: string;
+};
+
+interface ImportMeta {
+  readonly env: ViteEnvironmentVariables
+}

src/infrastructure/RuntimeSanity/Common/FactoryValidator.ts

@@ -0,0 +1,31 @@
+import { ISanityCheckOptions } from './ISanityCheckOptions';
+import { ISanityValidator } from './ISanityValidator';
+
+export type FactoryFunction<T> = () => T;
+
+export abstract class FactoryValidator<T> implements ISanityValidator {
+  private readonly factory: FactoryFunction<T>;
+
+  protected constructor(factory: FactoryFunction<T>) {
+    if (!factory) {
+      throw new Error('missing factory');
+    }
+    this.factory = factory;
+  }
+
+  public abstract shouldValidate(options: ISanityCheckOptions): boolean;
+
+  public abstract name: string;
+
+  public* collectErrors(): Iterable<string> {
+    try {
+      const value = this.factory();
+      if (!value) {
+        // Do not remove this check, it ensures that the factory call is not optimized away.
+        yield 'Factory resulted in a falsy value';
+      }
+    } catch (error) {
+      yield `Error in factory creation: ${error.message}`;
+    }
+  }
+}

src/infrastructure/RuntimeSanity/Common/ISanityCheckOptions.ts

@@ -0,0 +1,4 @@
+export interface ISanityCheckOptions {
+  readonly validateMetadata: boolean;
+  readonly validateEnvironment: boolean;
+}

src/infrastructure/RuntimeSanity/Common/ISanityValidator.ts

@@ -0,0 +1,7 @@
+import { ISanityCheckOptions } from './ISanityCheckOptions';
+
+export interface ISanityValidator {
+  readonly name: string;
+  shouldValidate(options: ISanityCheckOptions): boolean;
+  collectErrors(): Iterable<string>;
+}

src/infrastructure/RuntimeSanity/SanityChecks.ts

@@ -0,0 +1,50 @@
+import { ISanityCheckOptions } from './Common/ISanityCheckOptions';
+import { ISanityValidator } from './Common/ISanityValidator';
+import { MetadataValidator } from './Validators/MetadataValidator';
+
+const DefaultSanityValidators: ISanityValidator[] = [
+  new MetadataValidator(),
+];
+
+/* Helps to fail-fast on errors */
+export function validateRuntimeSanity(
+  options: ISanityCheckOptions,
+  validators: readonly ISanityValidator[] = DefaultSanityValidators,
+): void {
+  validateContext(options, validators);
+  const errorMessages = validators.reduce((errors, validator) => {
+    if (validator.shouldValidate(options)) {
+      const errorMessage = getErrorMessage(validator);
+      if (errorMessage) {
+        errors.push(errorMessage);
+      }
+    }
+    return errors;
+  }, new Array<string>());
+  if (errorMessages.length > 0) {
+    throw new Error(`Sanity check failed.\n${errorMessages.join('\n---\n')}`);
+  }
+}
+
+function validateContext(
+  options: ISanityCheckOptions,
+  validators: readonly ISanityValidator[],
+) {
+  if (!options) {
+    throw new Error('missing options');
+  }
+  if (!validators?.length) {
+    throw new Error('missing validators');
+  }
+  if (validators.some((validator) => !validator)) {
+    throw new Error('missing validator in validators');
+  }
+}
+
+function getErrorMessage(validator: ISanityValidator): string | undefined {
+  const errorMessages = [...validator.collectErrors()];
+  if (!errorMessages.length) {
+    return undefined;
+  }
+  return `${validator.name}:\n${errorMessages.join('\n')}`;
+}

src/infrastructure/RuntimeSanity/Validators/EnvironmentValidator.ts

@@ -0,0 +1,16 @@
+import { Environment } from '@/infrastructure/Environment/Environment';
+import { IEnvironment } from '@/infrastructure/Environment/IEnvironment';
+import { ISanityCheckOptions } from '../Common/ISanityCheckOptions';
+import { FactoryValidator, FactoryFunction } from '../Common/FactoryValidator';
+
+export class EnvironmentValidator extends FactoryValidator<IEnvironment> {
+  constructor(factory: FactoryFunction<IEnvironment> = () => Environment.CurrentEnvironment) {
+    super(factory);
+  }
+
+  public override name = 'environment';
+
+  public override shouldValidate(options: ISanityCheckOptions): boolean {
+    return options.validateEnvironment;
+  }
+}

src/infrastructure/RuntimeSanity/Validators/MetadataValidator.ts

@@ -0,0 +1,16 @@
+import { IAppMetadata } from '@/infrastructure/Metadata/IAppMetadata';
+import { AppMetadataFactory } from '@/infrastructure/Metadata/AppMetadataFactory';
+import { ISanityCheckOptions } from '../Common/ISanityCheckOptions';
+import { FactoryValidator, FactoryFunction } from '../Common/FactoryValidator';
+
+export class MetadataValidator extends FactoryValidator<IAppMetadata> {
+  constructor(factory: FactoryFunction<IAppMetadata> = () => AppMetadataFactory.Current.instance) {
+    super(factory);
+  }
+
+  public override name = 'metadata';
+
+  public override shouldValidate(options: ISanityCheckOptions): boolean {
+    return options.validateMetadata;
+  }
+}

src/presentation/README.md

@@ -0,0 +1,3 @@
+# presentation
+
+See [`presentation.md`](./../../docs/presentation.md)

src/presentation/assets/styles/_fonts.scss

@@ -1,17 +1,19 @@
 // https://google-webfonts-helper.herokuapp.com/fonts
 
+@use "@/presentation/assets/styles/vite-path" as *;
+
 /* slabo-27px-regular - latin-ext_latin */
 @font-face {
   font-family: 'Slabo 27px';
   font-style: normal;
   font-weight: 400;
-  src: url('~@/presentation/assets/fonts/slabo-27px-v6-latin-ext_latin-regular.eot'); /* IE9 Compat Modes */
+  src: url('#{$base-assets-path}/fonts/slabo-27px-v6-latin-ext_latin-regular.eot'); /* IE9 Compat Modes */
   src: local('Slabo 27px'), local('Slabo27px-Regular'),
-       url('~@/presentation/assets/fonts/slabo-27px-v6-latin-ext_latin-regular.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
-       url('~@/presentation/assets/fonts/slabo-27px-v6-latin-ext_latin-regular.woff2') format('woff2'), /* Super Modern Browsers */
-       url('~@/presentation/assets/fonts/slabo-27px-v6-latin-ext_latin-regular.woff') format('woff'), /* Modern Browsers */
-       url('~@/presentation/assets/fonts/slabo-27px-v6-latin-ext_latin-regular.ttf') format('truetype'), /* Safari, Android, iOS */
-       url('~@/presentation/assets/fonts/slabo-27px-v6-latin-ext_latin-regular.svg#Slabo27px') format('svg'); /* Legacy iOS */
+       url('#{$base-assets-path}/fonts/slabo-27px-v6-latin-ext_latin-regular.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
+       url('#{$base-assets-path}/fonts/slabo-27px-v6-latin-ext_latin-regular.woff2') format('woff2'), /* Super Modern Browsers */
+       url('#{$base-assets-path}/fonts/slabo-27px-v6-latin-ext_latin-regular.woff') format('woff'), /* Modern Browsers */
+       url('#{$base-assets-path}/fonts/slabo-27px-v6-latin-ext_latin-regular.ttf') format('truetype'), /* Safari, Android, iOS */
+       url('#{$base-assets-path}/fonts/slabo-27px-v6-latin-ext_latin-regular.svg#Slabo27px') format('svg'); /* Legacy iOS */
 }
 
 /* yesteryear-regular - latin */
@@ -19,13 +21,13 @@
   font-family: 'Yesteryear';
   font-style: normal;
   font-weight: 400;
-  src: url('~@/presentation/assets/fonts/yesteryear-v8-latin-regular.eot'); /* IE9 Compat Modes */
+  src: url('#{$base-assets-path}/fonts/yesteryear-v8-latin-regular.eot'); /* IE9 Compat Modes */
   src: local('Yesteryear'), local('Yesteryear-Regular'),
-       url('~@/presentation/assets/fonts/yesteryear-v8-latin-regular.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
-       url('~@/presentation/assets/fonts/yesteryear-v8-latin-regular.woff2') format('woff2'), /* Super Modern Browsers */
-       url('~@/presentation/assets/fonts/yesteryear-v8-latin-regular.woff') format('woff'), /* Modern Browsers */
-       url('~@/presentation/assets/fonts/yesteryear-v8-latin-regular.ttf') format('truetype'), /* Safari, Android, iOS */
-       url('~@/presentation/assets/fonts/yesteryear-v8-latin-regular.svg#Yesteryear') format('svg'); /* Legacy iOS */
+       url('#{$base-assets-path}/fonts/yesteryear-v8-latin-regular.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
+       url('#{$base-assets-path}/fonts/yesteryear-v8-latin-regular.woff2') format('woff2'), /* Super Modern Browsers */
+       url('#{$base-assets-path}/fonts/yesteryear-v8-latin-regular.woff') format('woff'), /* Modern Browsers */
+       url('#{$base-assets-path}/fonts/yesteryear-v8-latin-regular.ttf') format('truetype'), /* Safari, Android, iOS */
+       url('#{$base-assets-path}/fonts/yesteryear-v8-latin-regular.svg#Yesteryear') format('svg'); /* Legacy iOS */
 }
 
 $font-normal    : 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', 'source-code-pro', monospace;

src/presentation/assets/styles/_globals.scss

@@ -5,6 +5,7 @@
 @use "@/presentation/assets/styles/colors" as *;
 @use "@/presentation/assets/styles/fonts" as *;
 @use "@/presentation/assets/styles/mixins" as *;
+@use "@/presentation/assets/styles/vite-path" as *;
 
 * {
     box-sizing: border-box;

src/presentation/assets/styles/_vite-path.scss

@@ -0,0 +1,4 @@
+// Define paths specific to Vite's resolution system.
+// Vite uses the "@" symbol to resolve its aliases for styles.
+
+$base-assets-path: "@/presentation/assets/";

src/presentation/bootstrapping/DependencyProvider.ts

@@ -5,7 +5,7 @@ import {
   useCollectionStateKey, useApplicationKey, useEnvironmentKey,
 } from '@/presentation/injectionSymbols';
 import { IApplicationContext } from '@/application/Context/IApplicationContext';
-import { Environment } from '@/application/Environment/Environment';
+import { Environment } from '@/infrastructure/Environment/Environment';
 
 export function provideDependencies(context: IApplicationContext) {
   registerSingleton(useApplicationKey, useApplication(context.app));

src/presentation/components/App.vue

@@ -18,6 +18,7 @@ import TheCodeButtons from '@/presentation/components/Code/CodeButtons/TheCodeBu
 import TheScriptArea from '@/presentation/components/Scripts/TheScriptArea.vue';
 import TheSearchBar from '@/presentation/components/TheSearchBar.vue';
 import { buildContext } from '@/application/Context/ApplicationContextFactory';
+import { validateRuntimeSanity } from '@/infrastructure/RuntimeSanity/SanityChecks';
 import { provideDependencies } from '../bootstrapping/DependencyProvider';
 
 const singletonAppContext = await buildContext();
@@ -32,6 +33,10 @@ export default defineComponent({
   },
   setup() {
     provideDependencies(singletonAppContext); // In Vue 3.0 we can move it to main.ts
+    validateRuntimeSanity({
+      validateMetadata: true,
+      validateEnvironment: true,
+    });
   },
 });
 </script>

src/presentation/components/Code/CodeButtons/TheCodeButtons.vue

@@ -33,7 +33,7 @@ import { useCollectionStateKey, useEnvironmentKey } from '@/presentation/injecti
 import { SaveFileDialog, FileType } from '@/infrastructure/SaveFileDialog';
 import { Clipboard } from '@/infrastructure/Clipboard';
 import ModalDialog from '@/presentation/components/Shared/Modal/ModalDialog.vue';
-import { Environment } from '@/application/Environment/Environment';
+import { Environment } from '@/infrastructure/Environment/Environment';
 import { IReadOnlyCategoryCollectionState } from '@/application/Context/State/ICategoryCollectionState';
 import { ScriptingLanguage } from '@/domain/ScriptingLanguage';
 import { IApplicationCode } from '@/application/Context/State/Code/IApplicationCode';

src/presentation/components/Code/ace-importer.ts

@@ -1,8 +1,8 @@
 import ace from 'ace-builds';
 
 /*
-  Following is here because `import 'ace-builds/webpack-resolver';` does not work with webpack 5.
-  Related issue: https://github.com/ajaxorg/ace-builds/issues/211, PR: https://github.com/ajaxorg/ace-builds/pull/221
+  Following is here because `import 'ace-builds/esm-resolver' imports all unused functionality
+  when built with Vite (`npm run build`).
 */
 
 import 'ace-builds/src-noconflict/theme-github';

src/presentation/components/Scripts/View/ScriptsTree/SelectableTree/LiquorTree/LiquorTree.d.ts

@@ -69,6 +69,8 @@ declare module 'liquor-tree' {
     matcher(query: string, node: ILiquorTreeExistingNode): boolean;
   }
 
-  const LiquorTree: PluginObject<Vue>;
+  interface LiquorTreeVueComponent extends PluginObject<Vue> {
+    install(Vue: VueConstructor<Vue>, options?: unknown);
+  }
   export default LiquorTree;
 }

src/presentation/components/Scripts/View/ScriptsTree/SelectableTree/Node/Documentation/DocumentationText.vue

@@ -76,7 +76,7 @@ $text-size: 0.75em; // Lower looks bad on Firefox
           Use mask element instead of content/background-image etc.
           This way we can apply current font color to it to match the theme
         */
-        mask: url(~@/presentation/assets/icons/external-link.svg) no-repeat 50% 50%;
+        mask: url(@/presentation/assets/icons/external-link.svg) no-repeat 50% 50%;
         mask-size: cover;
         content: '';
 

src/presentation/components/Scripts/View/ScriptsTree/SelectableTree/SelectableTree.vue

@@ -8,9 +8,11 @@
         @node:unchecked="nodeSelected($event)"
         ref="liquorTree"
       >
-        <span class="tree-text" slot-scope="{ node }">
-          <NodeContent :data="convertExistingToNode(node)" />
-        </span>
+        <template v-slot:default="{ node }">
+          <span class="tree-text">
+            <NodeContent :data="convertExistingToNode(node)" />
+          </span>
+        </template>
       </LiquorTree>
     </span>
     <span v-else>Nooo 😢</span>
@@ -192,4 +194,3 @@ async function tryUntilDefined<T>(
   return value;
 }
 </script>
-./Node/INodeContent

src/presentation/components/Scripts/View/TheScriptsView.vue

@@ -1,19 +1,24 @@
 <template>
   <div class="scripts">
     <div v-if="!isSearching">
-      <CardList v-if="currentView === ViewType.Cards" />
-      <div class="tree" v-else-if="currentView === ViewType.Tree">
-        <ScriptsTree />
-      </div>
+      <template v-if="currentView === ViewType.Cards">
+        <CardList />
+      </template>
+      <template v-else-if="currentView === ViewType.Tree">
+        <div class="tree">
+          <ScriptsTree />
+        </div>
+      </template>
     </div>
     <div v-else> <!-- Searching -->
       <div class="search">
         <div class="search__query">
           <div>Searching for "{{ trimmedSearchQuery }}"</div>
-          <div class="search__query__close-button">
-            <font-awesome-icon
-              :icon="['fas', 'times']"
-              v-on:click="clearSearchQuery()" />
+          <div
+            class="search__query__close-button"
+            v-on:click="clearSearchQuery()"
+          >
+            <font-awesome-icon :icon="['fas', 'times']" />
           </div>
         </div>
         <div v-if="!searchHasMatches" class="search-no-matches">
@@ -41,6 +46,7 @@ import ScriptsTree from '@/presentation/components/Scripts/View/ScriptsTree/Scri
 import CardList from '@/presentation/components/Scripts/View/Cards/CardList.vue';
 import { ViewType } from '@/presentation/components/Scripts/Menu/View/ViewType';
 import { IReadOnlyUserFilter } from '@/application/Context/State/Filter/IUserFilter';
+import { IFilterResult } from '@/application/Context/State/Filter/IFilterResult';
 
 export default defineComponent({
   components: {
@@ -58,8 +64,8 @@ export default defineComponent({
     const { info } = inject(useApplicationKey);
 
     const repositoryUrl = computed<string>(() => info.repositoryWebUrl);
-    const searchQuery = ref<string>();
-    const isSearching = ref(false);
+    const searchQuery = ref<string | undefined>();
+    const isSearching = computed(() => Boolean(searchQuery.value));
     const searchHasMatches = ref(false);
     const trimmedSearchQuery = computed(() => {
       const query = searchQuery.value;
@@ -72,8 +78,9 @@ export default defineComponent({
 
     onStateChange((newState) => {
       events.unsubscribeAll();
+      updateFromInitialFilter(newState.filter.currentFilter);
       subscribeToFilterChanges(newState.filter);
-    });
+    }, { immediate: true });
 
     function clearSearchQuery() {
       modifyCurrentState((state) => {
@@ -82,17 +89,21 @@ export default defineComponent({
       });
     }
 
+    function updateFromInitialFilter(filter?: IFilterResult) {
+      searchQuery.value = filter?.query;
+      searchHasMatches.value = filter?.hasAnyMatches();
+    }
+
     function subscribeToFilterChanges(filter: IReadOnlyUserFilter) {
       events.register(
         filter.filterChanged.on((event) => {
           event.visit({
             onApply: (newFilter) => {
               searchQuery.value = newFilter.query;
-              isSearching.value = true;
               searchHasMatches.value = newFilter.hasAnyMatches();
             },
             onClear: () => {
-              isSearching.value = false;
+              searchQuery.value = undefined;
             },
           });
         }),

src/presentation/components/Shared/Hooks/UseCollectionState.ts

@@ -2,6 +2,7 @@ import { ref, computed, readonly } from 'vue';
 import { IApplicationContext, IReadOnlyApplicationContext } from '@/application/Context/IApplicationContext';
 import { ICategoryCollectionState, IReadOnlyCategoryCollectionState } from '@/application/Context/State/ICategoryCollectionState';
 import { EventSubscriptionCollection } from '@/infrastructure/Events/EventSubscriptionCollection';
+import { IEventSubscriptionCollection } from '@/infrastructure/Events/IEventSubscriptionCollection';
 
 export function useCollectionState(context: IApplicationContext) {
   if (!context) {
@@ -18,13 +19,6 @@ export function useCollectionState(context: IApplicationContext) {
     }),
   );
 
-  type NewStateEventHandler = (
-    newState: IReadOnlyCategoryCollectionState,
-    oldState: IReadOnlyCategoryCollectionState | undefined,
-  ) => void;
-  interface IStateCallbackSettings {
-    readonly immediate: boolean;
-  }
   const defaultSettings: IStateCallbackSettings = {
     immediate: false,
   };
@@ -49,9 +43,6 @@ export function useCollectionState(context: IApplicationContext) {
     }
   }
 
-  type StateModifier = (
-    state: ICategoryCollectionState,
-  ) => void;
   function modifyCurrentState(mutator: StateModifier) {
     if (!mutator) {
       throw new Error('missing state mutator');
@@ -59,9 +50,6 @@ export function useCollectionState(context: IApplicationContext) {
     mutator(context.state);
   }
 
-  type ContextModifier = (
-    state: IApplicationContext,
-  ) => void;
   function modifyCurrentContext(mutator: ContextModifier) {
     if (!mutator) {
       throw new Error('missing context mutator');
@@ -75,6 +63,23 @@ export function useCollectionState(context: IApplicationContext) {
     onStateChange,
     currentContext: context as IReadOnlyApplicationContext,
     currentState: readonly(computed<IReadOnlyCategoryCollectionState>(() => currentState.value)),
-    events,
+    events: events as IEventSubscriptionCollection,
   };
 }
+
+export type NewStateEventHandler = (
+  newState: IReadOnlyCategoryCollectionState,
+  oldState: IReadOnlyCategoryCollectionState | undefined,
+) => void;
+
+export interface IStateCallbackSettings {
+  readonly immediate: boolean;
+}
+
+export type StateModifier = (
+  state: ICategoryCollectionState,
+) => void;
+
+export type ContextModifier = (
+  state: IApplicationContext,
+) => void;

src/presentation/components/Shared/Hooks/UseEnvironment.ts

@@ -1,4 +1,4 @@
-import { IEnvironment } from '@/application/Environment/IEnvironment';
+import { IEnvironment } from '@/infrastructure/Environment/IEnvironment';
 
 export function useEnvironment(environment: IEnvironment) {
   if (!environment) {

src/presentation/electron/main/ElectronConfig.ts

@@ -0,0 +1,16 @@
+/**
+ * Abstraction for electron-vite specific logic and other Electron CLI helpers/wrappers.
+ * Allows for agnostic application design and centralizes adjustments when switching wrappers.
+ */
+
+/// <reference types="electron-vite/node" />
+import { join } from 'path';
+import appIcon from '@/presentation/public/icon.png?asset';
+
+export const APP_ICON_PATH = appIcon;
+
+export const RENDERER_URL = process.env.ELECTRON_RENDERER_URL;
+
+export const RENDERER_HTML_PATH = join('file://', __dirname, '../renderer/index.html');
+
+export const PRELOADER_SCRIPT_PATH = join(__dirname, '../preload/index.cjs');

src/presentation/electron/main/Update/ManualUpdater.ts

@@ -6,6 +6,7 @@ import log from 'electron-log';
 import fetch from 'cross-fetch';
 import { ProjectInformation } from '@/domain/ProjectInformation';
 import { OperatingSystem } from '@/domain/OperatingSystem';
+import { ViteAppMetadata } from '@/infrastructure/Metadata/Vite/ViteAppMetadata';
 import { Version } from '@/domain/Version';
 import { parseProjectInformation } from '@/application/Parser/ProjectInformationParser';
 import { UpdateProgressBar } from './UpdateProgressBar';
@@ -28,7 +29,7 @@ export async function handleManualUpdate(info: UpdateInfo) {
 }
 
 function getTargetProject(targetVersion: string) {
-  const existingProject = parseProjectInformation(process.env);
+  const existingProject = parseProjectInformation(new ViteAppMetadata());
   const targetProject = new ProjectInformation(
     existingProject.name,
     new Version(targetVersion),

src/presentation/electron/main/index.ts

@@ -1,21 +1,17 @@
-// This is main process of Electron, started as first thing when app starts.
-// This script is running through entire life of the application.
-// It doesn't have any windows which you can see on screen, opens the main window from here.
+// Initializes Electron's main process, always runs in the background, and manages the main window.
 
-import path from 'path';
 import {
   app, protocol, BrowserWindow, shell, screen,
 } from 'electron';
-import { createProtocol } from 'vue-cli-plugin-electron-builder/lib';
 import installExtension, { VUEJS_DEVTOOLS } from 'electron-devtools-installer';
 import log from 'electron-log';
+import { validateRuntimeSanity } from '@/infrastructure/RuntimeSanity/SanityChecks';
 import { setupAutoUpdater } from './Update/Updater';
+import {
+  APP_ICON_PATH, PRELOADER_SCRIPT_PATH, RENDERER_HTML_PATH, RENDERER_URL,
+} from './ElectronConfig';
 
-const isDevelopment = process.env.NODE_ENV !== 'production';
-
-// Path of static assets, magic variable populated by electron
-// eslint-disable-next-line @typescript-eslint/naming-convention, no-underscore-dangle
-declare const __static: string; // https://github.com/electron-userland/electron-webpack/issues/172
+const isDevelopment = !app.isPackaged;
 
 // Keep a global reference of the window object, if you don't, the window will
 // be closed automatically when the JavaScript object is garbage collected.
@@ -26,10 +22,15 @@ protocol.registerSchemesAsPrivileged([
   { scheme: 'app', privileges: { secure: true, standard: true } },
 ]);
 
-log.transports.file.level = 'silly';
-if (!process.env.IS_TEST) {
-  Object.assign(console, log.functions); // override console.log, console.warn etc.
-}
+setupLogger();
+validateRuntimeSanity({
+  // Metadata is used by manual updates.
+  validateMetadata: true,
+
+  // Environment is populated by the preload script and is in the renderer's context;
+  // it's not directly accessible from the main process.
+  validateEnvironment: false,
+});
 
 function createWindow() {
   // Create the browser window.
@@ -38,14 +39,11 @@ function createWindow() {
     width: size.width,
     height: size.height,
     webPreferences: {
-      contextIsolation: false, // To reach node https://github.com/nklayman/vue-cli-plugin-electron-builder/issues/1285
-      // Use pluginOptions.nodeIntegration, leave this alone
-      // See https://nklayman.github.io/vue-cli-plugin-electron-builder/guide/security.html#node-integration
-      nodeIntegration: (process.env
-        .ELECTRON_NODE_INTEGRATION as unknown) as boolean,
+      nodeIntegration: true, // disabling does not work with electron-vite, https://electron-vite.org/guide/dev.html#nodeintegration
+      contextIsolation: true,
+      preload: PRELOADER_SCRIPT_PATH,
     },
-    // https://nklayman.github.io/vue-cli-plugin-electron-builder/guide/recipes.html#set-tray-icon
-    icon: path.join(__static, 'icon.png'),
+    icon: APP_ICON_PATH,
   });
 
   win.setMenuBarVisibility(false);
@@ -86,17 +84,12 @@ app.on('activate', () => {
   }
 });
 
-// This method will be called when Electron has finished
-// initialization and is ready to create browser windows.
-// Some APIs can only be used after this event occurs.
 app.on('ready', async () => {
-  if (isDevelopment && !process.env.IS_TEST) {
-    // Install Vue Devtools
+  if (isDevelopment) {
     try {
       await installExtension(VUEJS_DEVTOOLS);
     } catch (e) {
-      // eslint-disable-next-line no-console
-      console.error('Vue Devtools failed to install:', e.toString());
+      log.error('Vue Devtools failed to install:', e.toString());
     }
   }
   createWindow();
@@ -118,19 +111,19 @@ if (isDevelopment) {
 }
 
 function loadApplication(window: BrowserWindow) {
-  if (process.env.WEBPACK_DEV_SERVER_URL) {
-    // Load the url of the dev server if in development mode
-    loadUrlWithNodeWorkaround(win, process.env.WEBPACK_DEV_SERVER_URL as string);
-    if (!process.env.IS_TEST) {
-      window.webContents.openDevTools();
-    }
+  if (RENDERER_URL) { // Populated in a dev server during development
+    loadUrlWithNodeWorkaround(win, RENDERER_URL);
+  } else {
+    loadUrlWithNodeWorkaround(win, RENDERER_HTML_PATH);
+  }
+  if (isDevelopment) {
+    window.webContents.openDevTools();
   } else {
-    createProtocol('app');
-    // Load the index.html when not in development
-    loadUrlWithNodeWorkaround(win, 'app://./index.html');
     const updater = setupAutoUpdater();
     updater.checkForUpdates();
   }
+  // Do not remove [WINDOW_INIT]; it's a marker used in tests.
+  log.info('[WINDOW_INIT] Main window initialized and content loading.');
 }
 
 function configureExternalsUrlsOpenBrowser(window: BrowserWindow) {
@@ -155,3 +148,10 @@ function getWindowSize(idealWidth: number, idealHeight: number) {
   height = Math.min(height, idealHeight);
   return { width, height };
 }
+
+function setupLogger(): void {
+  log.transports.file.level = 'silly';
+  if (!isDevelopment) {
+    Object.assign(console, log.functions); // override console.log, console.warn etc.
+  }
+}

src/presentation/electron/preload/NodeOsMapper.ts

@@ -0,0 +1,14 @@
+import { OperatingSystem } from '@/domain/OperatingSystem';
+
+export function convertPlatformToOs(platform: NodeJS.Platform): OperatingSystem | undefined {
+  switch (platform) {
+    case 'darwin':
+      return OperatingSystem.macOS;
+    case 'win32':
+      return OperatingSystem.Windows;
+    case 'linux':
+      return OperatingSystem.Linux;
+    default:
+      return undefined;
+  }
+}

src/presentation/electron/preload/WindowVariablesProvider.ts

@@ -0,0 +1,14 @@
+import { createNodeSystemOperations } from '@/infrastructure/Environment/SystemOperations/NodeSystemOperations';
+import { WindowVariables } from '@/infrastructure/Environment/WindowVariables';
+import { convertPlatformToOs } from './NodeOsMapper';
+
+export function provideWindowVariables(
+  createSystem = createNodeSystemOperations,
+  convertToOs = convertPlatformToOs,
+): WindowVariables {
+  return {
+    system: createSystem(),
+    isDesktop: true,
+    os: convertToOs(process.platform),
+  };
+}

src/presentation/electron/preload/index.ts

@@ -0,0 +1,23 @@
+// This file is used to securely expose Electron APIs to the application.
+
+import { contextBridge } from 'electron';
+import log from 'electron-log';
+import { validateRuntimeSanity } from '@/infrastructure/RuntimeSanity/SanityChecks';
+import { provideWindowVariables } from './WindowVariablesProvider';
+
+validateRuntimeSanity({
+  // Validate metadata as a preventive measure for fail-fast,
+  // even if it's not currently used in the preload script.
+  validateMetadata: true,
+
+  // The preload script cannot access variables on the window object.
+  validateEnvironment: false,
+});
+
+const windowVariables = provideWindowVariables();
+Object.entries(windowVariables).forEach(([key, value]) => {
+  contextBridge.exposeInMainWorld(key, value);
+});
+
+// Do not remove [PRELOAD_INIT]; it's a marker used in tests.
+log.info('[PRELOAD_INIT] Preload script successfully initialized and executed.');

src/presentation/index.html

@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width,initial-scale=1.0">
+  <title>Privacy is sexy 🍑🍆 - Enforce privacy & security on Windows, macOS and Linux</title>
+  <meta name="robots" content="index,follow" />
+  <meta name="description"
+    content="Web tool to generate scripts for enforcing privacy & security best-practices such as stopping data collection of Windows and different softwares on it." />
+  <link rel="icon" href="/favicon.ico">
+</head>
+
+<body>
+  <noscript>
+    <style>
+      #javascriptDisabled {
+        background: #eceef1;
+        margin: 5rem auto;
+        max-width: 800px;
+        font-size: 7px;
+        padding: 3rem;
+        border: 1px solid#333a45;
+        font-size: 1.5rem;
+        line-height: 150%;
+        font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', 'Consolas', 'source-code-pro', monospace;
+      }
+    </style>
+    <div id="javascriptDisabled">
+      <h1>Problem loading page</h1>
+      <p>The page does not work without JavaScript enabled. Please enable it to use privacy.sexy. There's no shady stuff
+        as 100% of the website is open source.</p>
+    </div>
+  </noscript>
+  <div id="app"></div>
+  <script type="module" src="/main.ts"></script>
+</body>
+</html>