OpenNoodl/dev-docs/tasks/phase-5-multi-target-deployment/02-capacitor-mobile/README.md

Capacitor Mobile Target

Phase ID: PHASE-B
Priority: 🔴 High (Primary Target)
Estimated Duration: 4-5 weeks
Status: Planning
Dependencies: Phase A (BYOB Backend), Phase E (Target System Core)
Last Updated: 2025-12-28

Executive Summary

Enable Noodl users to build native iOS and Android applications using Capacitor as the bridge between web technologies and native device capabilities. This is the highest-priority target due to massive user demand for mobile app development without native code knowledge.

Value Proposition

Current State	With Capacitor Target
Export static web, manually wrap in Capacitor	One-click Capacitor project export
No mobile preview	Hot-reload preview on device/simulator
No native API access	Camera, GPS, Push, Haptics nodes
Manual bridge setup	Automatic Capacitor bridge injection
30-60s iteration cycles	1-2s hot-reload cycles

Technical Architecture

How Capacitor Works

Capacitor is a cross-platform native runtime that allows web apps to run natively on iOS and Android with access to native device features through JavaScript bridges.

┌─────────────────────────────────────────────────────────────────────┐
│                      CAPACITOR ARCHITECTURE                         │
├─────────────────────────────────────────────────────────────────────┤
│                                                                     │
│  ┌─────────────────────────────────────────────────────────────┐   │
│  │                    YOUR NOODL APP                            │   │
│  │  (HTML, CSS, JavaScript - same as web export)               │   │
│  └─────────────────────────────────────────────────────────────┘   │
│                              │                                      │
│                              ▼                                      │
│  ┌─────────────────────────────────────────────────────────────┐   │
│  │                  CAPACITOR BRIDGE                            │   │
│  │  window.Capacitor.Plugins.Camera.getPhoto()                 │   │
│  │  window.Capacitor.Plugins.Geolocation.getCurrentPosition()  │   │
│  └─────────────────────────────────────────────────────────────┘   │
│                              │                                      │
│              ┌───────────────┼───────────────┐                     │
│              ▼               ▼               ▼                     │
│  ┌─────────────────┐ ┌─────────────────┐ ┌─────────────────┐      │
│  │   iOS Native    │ │ Android Native  │ │   Web Fallback  │      │
│  │  Swift/ObjC     │ │  Kotlin/Java    │ │  (PWA APIs)     │      │
│  └─────────────────┘ └─────────────────┘ └─────────────────┘      │
│                                                                     │
└─────────────────────────────────────────────────────────────────────┘

Integration with Noodl

┌─────────────────────────────────────────────────────────────────────┐
│                        NOODL EDITOR                                 │
├─────────────────────────────────────────────────────────────────────┤
│                                                                     │
│  ┌─────────────────────────────────────────────────────────────┐   │
│  │                    VISUAL GRAPH                              │   │
│  │  [Button] ──onClick──▶ [Camera Capture] ──photo──▶ [Image]  │   │
│  └─────────────────────────────────────────────────────────────┘   │
│                              │                                      │
│                              ▼                                      │
│  ┌─────────────────────────────────────────────────────────────┐   │
│  │                CAPACITOR NODE LIBRARY                        │   │
│  │  Camera, Geolocation, Push, Haptics, StatusBar, etc.        │   │
│  └─────────────────────────────────────────────────────────────┘   │
│                              │                                      │
│          ┌───────────────────┼───────────────────┐                 │
│          ▼                   ▼                   ▼                 │
│  ┌─────────────┐     ┌─────────────┐     ┌─────────────┐          │
│  │   PREVIEW   │     │   EXPORT    │     │   PREVIEW   │          │
│  │   (Web)     │     │ (Capacitor) │     │  (Device)   │          │
│  │             │     │             │     │             │          │
│  │ Mock APIs   │     │ Real build  │     │ Hot-reload  │          │
│  │ in browser  │     │ to Xcode/   │     │ on physical │          │
│  │             │     │ Android     │     │ device      │          │
│  └─────────────┘     └─────────────┘     └─────────────┘          │
│                                                                     │
└─────────────────────────────────────────────────────────────────────┘

Preview Modes

1. Web Preview (Default)

Standard browser preview with mocked Capacitor APIs:

// When in web preview mode, inject mock Capacitor
if (!window.Capacitor) {
  window.Capacitor = {
    isNativePlatform: () => false,
    Plugins: {
      Camera: {
        async getPhoto(options: CameraOptions): Promise<Photo> {
          // Use browser MediaDevices API
          const stream = await navigator.mediaDevices.getUserMedia({ video: true });
          // ... capture and return photo
        }
      },
      Geolocation: {
        async getCurrentPosition(): Promise<Position> {
          // Use browser Geolocation API
          return new Promise((resolve, reject) => {
            navigator.geolocation.getCurrentPosition(
              (pos) => resolve({
                coords: {
                  latitude: pos.coords.latitude,
                  longitude: pos.coords.longitude,
                  accuracy: pos.coords.accuracy,
                }
              }),
              reject
            );
          });
        }
      },
      // ... other mocked plugins
    }
  };
}

Limitations:

• Push notifications won't work (no registration token)
• Some device-specific features unavailable
• Camera quality may differ from native

2. Capacitor Hot-Reload Preview

Connect physical device or simulator to Noodl's dev server:

┌─────────────────────────────────────────────────────────────────────┐
│ Preview Mode: [Web ▾]                                               │
│               ├─ Web (Browser)                                      │
│               ├─ iOS Simulator ◀                                    │
│               ├─ Android Emulator                                   │
│               └─ Physical Device                                    │
├─────────────────────────────────────────────────────────────────────┤
│                                                                     │
│  ⚠️ Capacitor Preview Setup Required                                │
│                                                                     │
│  To preview on iOS Simulator:                                       │
│                                                                     │
│  1. Install Xcode from the Mac App Store                           │
│  2. Open Terminal and run:                                         │
│     ┌─────────────────────────────────────────────────────────┐    │
│     │ npx cap run ios --livereload-url=http://localhost:8574 │    │
│     └─────────────────────────────────────────────────────────┘    │
│  3. Select a simulator when prompted                               │
│                                                                     │
│  [Generate Capacitor Project]  [Copy Command]  [Open Documentation] │
│                                                                     │
└─────────────────────────────────────────────────────────────────────┘

How Hot-Reload Works:

┌───────────────┐         ┌───────────────┐         ┌───────────────┐
│  Noodl Editor │◄───────▶│  Dev Server   │◄───────▶│  iOS/Android  │
│               │ WebSocket│ localhost:8574│   HTTP  │  App in       │
│  Make changes │─────────▶│  Serves app   │─────────▶  WebView      │
│               │         │  + Capacitor  │         │               │
└───────────────┘         │  bridge       │         │  Native APIs  │
                          └───────────────┘         │  available    │
                                                    └───────────────┘

1. Noodl's dev server already serves the preview app at localhost:8574
2. Capacitor app's WebView loads from this URL instead of bundled assets
3. When you make changes in Noodl, the WebView automatically refreshes
4. Native Capacitor plugins are available because you're running in a native app

3. Device Preview (Physical Device)

┌─────────────────────────────────────────────────────────────────────┐
│ Preview on Device                                              [×]  │
├─────────────────────────────────────────────────────────────────────┤
│                                                                     │
│  CONNECTED DEVICES                                                  │
│  ┌─────────────────────────────────────────────────────────────┐   │
│  │ 📱 Richard's iPhone 15 Pro                    ✓ Connected   │   │
│  │    iOS 17.2  •  USB Connected                               │   │
│  │                                                [Open App]   │   │
│  ├─────────────────────────────────────────────────────────────┤   │
│  │ 📱 Pixel 8                                    ✓ Connected   │   │
│  │    Android 14  •  WiFi (192.168.1.42)                      │   │
│  │                                                [Open App]   │   │
│  └─────────────────────────────────────────────────────────────┘   │
│                                                                     │
│  ─────────────────────────────────────────────────────────────────  │
│                                                                     │
│  NETWORK PREVIEW (WiFi)                                            │
│  Devices on the same network can connect to:                       │
│  ┌─────────────────────────────────────────────────────────────┐   │
│  │ http://192.168.1.100:8574                           [Copy]  │   │
│  └─────────────────────────────────────────────────────────────┘   │
│                                                                     │
│              ┌─────────────────┐                                   │
│              │ ▄▄▄▄▄▄▄ ▄▄▄▄▄▄▄│                                   │
│              │ █     █ █     █│  Scan with                        │
│              │ █ ███ █ █ ███ █│  Noodl Preview App                │
│              │ █     █ █     █│                                   │
│              │ ▀▀▀▀▀▀▀ ▀▀▀▀▀▀▀│                                   │
│              └─────────────────┘                                   │
│                                                                     │
│  [Download iOS Preview App]  [Download Android Preview App]         │
│                                                                     │
└─────────────────────────────────────────────────────────────────────┘

Capacitor-Specific Nodes

Core Plugin Nodes

Camera Node

┌─────────────────────────────────────────────────────────────────────┐
│ 📷 Camera Capture                                    [📱] [🖥️]     │
├─────────────────────────────────────────────────────────────────────┤
│                                                                     │
│ INPUTS                                                              │
│ ─────────────────────────────────────────────────────────────────── │
│                                                                     │
│ Capture                    ○────  (Signal - triggers capture)      │
│                                                                     │
│ Source:                    [Camera ▾]                               │
│                            ├─ Camera                                │
│                            ├─ Photos Library                        │
│                            └─ Prompt User                           │
│                                                                     │
│ Quality:                   [High ▾]                                 │
│                            ├─ Low (faster, smaller)                 │
│                            ├─ Medium                                │
│                            └─ High (best quality)                   │
│                                                                     │
│ Result Type:               [Base64 ▾]                               │
│                            ├─ Base64 (data URL)                     │
│                            ├─ URI (file path)                       │
│                            └─ Blob                                  │
│                                                                     │
│ Direction:                 [Rear ▾]                                 │
│ Correct Orientation:       [✓]                                      │
│ Allow Editing:             [✓]                                      │
│ Width:                     [1024    ] (0 = original)                │
│ Height:                    [0       ] (0 = original)                │
│                                                                     │
│ OUTPUTS                                                             │
│ ─────────────────────────────────────────────────────────────────── │
│                                                                     │
│ Photo                      ────○  (String - base64/URI)             │
│ Format                     ────○  (String - "jpeg"/"png"/"gif")     │
│ Captured                   ────○  (Signal - on success)             │
│ Failed                     ────○  (Signal - on error)               │
│ Error                      ────○  (String - error message)          │
│                                                                     │
└─────────────────────────────────────────────────────────────────────┘

Implementation:

// packages/noodl-runtime/src/nodes/capacitor/CameraNode.ts

import { Camera, CameraResultType, CameraSource } from '@capacitor/camera';
import { createNodeDefinition } from '../../nodeDefinition';

export const CameraNode = createNodeDefinition({
  name: 'Camera Capture',
  category: 'Device & Platform',
  color: 'purple',
  
  inputs: {
    capture: { type: 'signal', displayName: 'Capture' },
    source: {
      type: 'enum',
      displayName: 'Source',
      default: 'camera',
      enums: [
        { value: 'camera', label: 'Camera' },
        { value: 'photos', label: 'Photos Library' },
        { value: 'prompt', label: 'Prompt User' },
      ],
    },
    quality: {
      type: 'number',
      displayName: 'Quality',
      default: 90,
      min: 1,
      max: 100,
    },
    resultType: {
      type: 'enum',
      displayName: 'Result Type',
      default: 'base64',
      enums: [
        { value: 'base64', label: 'Base64' },
        { value: 'uri', label: 'URI' },
      ],
    },
    direction: {
      type: 'enum',
      displayName: 'Direction',
      default: 'rear',
      enums: [
        { value: 'rear', label: 'Rear' },
        { value: 'front', label: 'Front' },
      ],
    },
    allowEditing: { type: 'boolean', displayName: 'Allow Editing', default: false },
    width: { type: 'number', displayName: 'Width', default: 0 },
    height: { type: 'number', displayName: 'Height', default: 0 },
  },
  
  outputs: {
    photo: { type: 'string', displayName: 'Photo' },
    format: { type: 'string', displayName: 'Format' },
    captured: { type: 'signal', displayName: 'Captured' },
    failed: { type: 'signal', displayName: 'Failed' },
    error: { type: 'string', displayName: 'Error' },
  },
  
  targetCompatibility: ['capacitor', 'electron', 'web'],
  
  async execute(inputs, outputs, context) {
    try {
      const sourceMap = {
        camera: CameraSource.Camera,
        photos: CameraSource.Photos,
        prompt: CameraSource.Prompt,
      };
      
      const resultTypeMap = {
        base64: CameraResultType.Base64,
        uri: CameraResultType.Uri,
      };
      
      const photo = await Camera.getPhoto({
        source: sourceMap[inputs.source],
        resultType: resultTypeMap[inputs.resultType],
        quality: inputs.quality,
        allowEditing: inputs.allowEditing,
        width: inputs.width || undefined,
        height: inputs.height || undefined,
        direction: inputs.direction === 'front' ? 'FRONT' : 'REAR',
      });
      
      if (inputs.resultType === 'base64') {
        outputs.photo = `data:image/${photo.format};base64,${photo.base64String}`;
      } else {
        outputs.photo = photo.webPath;
      }
      
      outputs.format = photo.format;
      outputs.captured.trigger();
      
    } catch (err) {
      outputs.error = err.message;
      outputs.failed.trigger();
    }
  },
});

Geolocation Node

┌─────────────────────────────────────────────────────────────────────┐
│ 📍 Geolocation                               [🌐] [📱] [🖥️] [🧩]   │
├─────────────────────────────────────────────────────────────────────┤
│                                                                     │
│ INPUTS                                                              │
│ ─────────────────────────────────────────────────────────────────── │
│                                                                     │
│ Get Position              ○────  (Signal)                          │
│ Watch Position            ○────  (Signal - start watching)         │
│ Stop Watching             ○────  (Signal)                          │
│                                                                     │
│ High Accuracy:            [✓]   (uses GPS, slower, more battery)   │
│ Timeout (ms):             [10000]                                   │
│ Maximum Age (ms):         [0    ] (0 = always fresh)               │
│                                                                     │
│ OUTPUTS                                                             │
│ ─────────────────────────────────────────────────────────────────── │
│                                                                     │
│ Latitude                  ────○  (Number)                           │
│ Longitude                 ────○  (Number)                           │
│ Accuracy                  ────○  (Number - meters)                  │
│ Altitude                  ────○  (Number - meters, may be null)     │
│ Speed                     ────○  (Number - m/s, may be null)        │
│ Heading                   ────○  (Number - degrees, may be null)    │
│ Timestamp                 ────○  (Date)                             │
│                                                                     │
│ Position Updated          ────○  (Signal)                           │
│ Error                     ────○  (Signal)                           │
│ Error Message             ────○  (String)                           │
│                                                                     │
└─────────────────────────────────────────────────────────────────────┘

Push Notifications Node

┌─────────────────────────────────────────────────────────────────────┐
│ 🔔 Push Notifications                                      [📱]    │
├─────────────────────────────────────────────────────────────────────┤
│                                                                     │
│ INPUTS                                                              │
│ ─────────────────────────────────────────────────────────────────── │
│                                                                     │
│ Register                  ○────  (Signal - request permission)     │
│                                                                     │
│ OUTPUTS                                                             │
│ ─────────────────────────────────────────────────────────────────── │
│                                                                     │
│ Token                     ────○  (String - device token)            │
│ Registered                ────○  (Signal)                           │
│ Registration Failed       ────○  (Signal)                           │
│                                                                     │
│ Notification Received     ────○  (Signal)                           │
│ Notification Title        ────○  (String)                           │
│ Notification Body         ────○  (String)                           │
│ Notification Data         ────○  (Object - custom payload)          │
│ Notification Action       ────○  (String - action ID if tapped)     │
│                                                                     │
│ Notification Tapped       ────○  (Signal - user tapped notif)       │
│                                                                     │
└─────────────────────────────────────────────────────────────────────┘

Additional Capacitor Nodes

Node	Category	Description
Haptics	Device	Trigger haptic feedback (impact, notification, selection)
Status Bar	UI	Control status bar appearance (style, color, visibility)
Keyboard	UI	Show/hide keyboard, get keyboard height
Share	Social	Native share sheet for content
App Launcher	System	Open other apps, URLs, settings
Device Info	System	Get device model, OS version, battery, etc.
Network	System	Get connection type, monitor connectivity
Splash Screen	UI	Control splash screen (hide, show)
Local Notifications	Notifications	Schedule local notifications
Biometric Auth	Security	Face ID, Touch ID, fingerprint auth
Clipboard	Utility	Read/write clipboard
Browser	Navigation	Open in-app browser
App State	Lifecycle	Monitor foreground/background state

Project Export

Export Flow

┌─────────────────────────────────────────────────────────────────────┐
│ Export for Mobile                                              [×]  │
├─────────────────────────────────────────────────────────────────────┤
│                                                                     │
│ PLATFORM                                                            │
│ ┌───────────────────────────────┐ ┌───────────────────────────────┐ │
│ │         [Apple Logo]          │ │       [Android Logo]          │ │
│ │                               │ │                               │ │
│ │           iOS                 │ │          Android              │ │
│ │           ✓ Selected          │ │          ☐                    │ │
│ └───────────────────────────────┘ └───────────────────────────────┘ │
│                                                                     │
│ ─────────────────────────────────────────────────────────────────── │
│                                                                     │
│ APP CONFIGURATION                                                   │
│                                                                     │
│ App ID:                                                             │
│ ┌─────────────────────────────────────────────────────────────────┐ │
│ │ com.mycompany.myapp                                             │ │
│ └─────────────────────────────────────────────────────────────────┘ │
│ ⓘ Must match your App Store / Play Store app ID                    │
│                                                                     │
│ App Name:                                                           │
│ ┌─────────────────────────────────────────────────────────────────┐ │
│ │ My Awesome App                                                  │ │
│ └─────────────────────────────────────────────────────────────────┘ │
│                                                                     │
│ Version:                    Build Number:                           │
│ ┌─────────────────────────┐ ┌─────────────────────────┐            │
│ │ 1.0.0                   │ │ 1                       │            │
│ └─────────────────────────┘ └─────────────────────────┘            │
│                                                                     │
│ ▶ iOS Settings                                                      │
│   Team ID:                  [ABC123DEF4  ]                         │
│   Deployment Target:        [iOS 14.0 ▾]                           │
│                                                                     │
│ ▶ Plugins                                                           │
│   ┌─────────────────────────────────────────────────────────────┐  │
│   │ ☑ @capacitor/camera           (Used by: Camera Capture)    │  │
│   │ ☑ @capacitor/geolocation      (Used by: Geolocation)       │  │
│   │ ☑ @capacitor/push-notifications (Used by: Push Notif...)   │  │
│   │ ☐ @capacitor/haptics          (Not used)                   │  │
│   │ ☐ @capacitor/share            (Not used)                   │  │
│   └─────────────────────────────────────────────────────────────┘  │
│                                                                     │
│ ▶ Permissions (auto-detected from node usage)                       │
│   ┌─────────────────────────────────────────────────────────────┐  │
│   │ 📷 Camera Access                                            │  │
│   │    "This app needs camera access to take photos"            │  │
│   │                                                             │  │
│   │ 📍 Location When In Use                                     │  │
│   │    "This app needs your location to show nearby places"     │  │
│   │                                                             │  │
│   │ 🔔 Push Notifications                                       │  │
│   │    (Configured in Apple Developer Portal)                   │  │
│   └─────────────────────────────────────────────────────────────┘  │
│                                                                     │
│ ─────────────────────────────────────────────────────────────────── │
│                                                                     │
│ OUTPUT                                                              │
│ ┌─────────────────────────────────────────────────────────────────┐ │
│ │ ○ Generate Xcode/Android Studio Project                        │ │
│ │   Full native project ready for building and customization     │ │
│ │                                                                 │ │
│ │ ● Generate Build-Ready Package                     RECOMMENDED │ │
│ │   Minimal project, just run `npx cap build`                    │ │
│ └─────────────────────────────────────────────────────────────────┘ │
│                                                                     │
│                                    [Cancel]  [Export for iOS]       │
└─────────────────────────────────────────────────────────────────────┘

Generated Project Structure

my-app-capacitor/
├── package.json                 # Node.js package with Capacitor deps
├── capacitor.config.ts          # Capacitor configuration
├── www/                         # Built Noodl app (web assets)
│   ├── index.html
│   ├── main.js
│   ├── styles.css
│   └── assets/
├── ios/                         # iOS Xcode project
│   ├── App/
│   │   ├── App.xcodeproj
│   │   ├── App/
│   │   │   ├── AppDelegate.swift
│   │   │   ├── Info.plist       # Permissions, app config
│   │   │   └── Assets.xcassets  # App icons
│   │   └── Podfile              # iOS dependencies
│   └── Pods/
├── android/                     # Android Studio project
│   ├── app/
│   │   ├── build.gradle
│   │   ├── src/main/
│   │   │   ├── AndroidManifest.xml
│   │   │   ├── java/.../MainActivity.java
│   │   │   └── res/             # Icons, splash screens
│   └── gradle/
└── README.md                    # Build instructions

capacitor.config.ts

import { CapacitorConfig } from '@capacitor/cli';

const config: CapacitorConfig = {
  appId: 'com.mycompany.myapp',
  appName: 'My Awesome App',
  webDir: 'www',
  
  // Development: connect to Noodl dev server
  server: process.env.NODE_ENV === 'development' ? {
    url: 'http://localhost:8574',
    cleartext: true,
  } : undefined,
  
  plugins: {
    Camera: {
      // iOS requires these privacy descriptions
    },
    PushNotifications: {
      presentationOptions: ['badge', 'sound', 'alert'],
    },
  },
  
  ios: {
    // iOS-specific configuration
  },
  
  android: {
    // Android-specific configuration
  },
};

export default config;

Implementation Phases

Phase B.1: Capacitor Bridge Integration (1 week)

Goal: Enable Noodl preview to run inside Capacitor WebView with hot-reload.

Tasks:

• Detect when running in Capacitor context (window.Capacitor.isNativePlatform())
• Inject Capacitor bridge scripts in preview HTML
• Configure dev server for external access (CORS, network binding)
• Create "Capacitor Preview Mode" toggle in editor
• Document Xcode/Android Studio setup for live-reload

Files to Create/Modify:

packages/noodl-editor/src/frames/viewer-frame/src/views/
├── viewer.js                    # Modify: Add Capacitor bridge injection
└── capacitorBridge.js           # New: Capacitor-specific preview logic

packages/noodl-editor/src/editor/src/views/EditorTopbar/
└── PreviewModeSelector.tsx      # New: Preview mode dropdown component

Phase B.2: Core Capacitor Nodes (2 weeks)

Goal: Implement essential device capability nodes.

Week 1: High-priority nodes

• Camera Capture node
• Geolocation node
• Push Notifications node
• Haptics node

Week 2: Secondary nodes

• Share node
• Status Bar node
• Device Info node
• Network Status node
• App State node

Files to Create:

packages/noodl-runtime/src/nodes/capacitor/
├── index.ts                     # Export all Capacitor nodes
├── CameraNode.ts
├── GeolocationNode.ts
├── PushNotificationsNode.ts
├── HapticsNode.ts
├── ShareNode.ts
├── StatusBarNode.ts
├── DeviceInfoNode.ts
├── NetworkNode.ts
├── AppStateNode.ts
└── _mocks/                      # Web fallback implementations
    ├── cameraMock.ts
    ├── geolocationMock.ts
    └── ...

Phase B.3: Simulator/Device Launch (1 week)

Goal: One-click launch to iOS Simulator or Android Emulator.

Tasks:

• Detect installed simulators (xcrun simctl list)
• Detect installed Android emulators (emulator -list-avds)
• Create simulator selection UI
• Implement launch command execution
• Display QR code for physical device connection

Files to Create:

packages/noodl-editor/src/editor/src/views/panels/
└── CapacitorPreview/
    ├── SimulatorList.tsx
    ├── DeviceConnection.tsx
    └── QRCodeModal.tsx

Phase B.4: Export Pipeline (1 week)

Goal: Generate production-ready Capacitor project.

Tasks:

• Build web assets to www/ folder
• Generate capacitor.config.ts
• Generate package.json with correct dependencies
• Auto-detect required plugins from node usage
• Generate platform-specific permission strings
• Create iOS Xcode project scaffolding
• Create Android Studio project scaffolding
• Generate README with build instructions

Files to Create:

packages/noodl-editor/src/editor/src/export/
├── capacitor/
│   ├── CapacitorExporter.ts     # Main export orchestrator
│   ├── configGenerator.ts        # Generate capacitor.config.ts
│   ├── packageGenerator.ts       # Generate package.json
│   ├── pluginDetector.ts         # Detect required plugins from graph
│   ├── permissionGenerator.ts    # Generate iOS Info.plist entries
│   ├── iosProjectGenerator.ts    # Scaffold iOS project
│   └── androidProjectGenerator.ts # Scaffold Android project
└── templates/
    └── capacitor/
        ├── package.json.template
        ├── capacitor.config.ts.template
        └── ios/
            └── Info.plist.template

Web Fallback Behavior

When Capacitor nodes are used in web preview or web deployment:

Node	Web Fallback Behavior
Camera	Uses navigator.mediaDevices.getUserMedia()
Geolocation	Uses navigator.geolocation
Push Notifications	Shows warning, suggests Web Push API setup
Haptics	Uses navigator.vibrate() (limited support)
Share	Uses Web Share API (Chrome, Safari)
Status Bar	No-op (not applicable to web)
Device Info	Returns navigator.userAgent parsed info
Network	Uses navigator.connection

// Example: Camera fallback implementation
async function capturePhotoWeb(options: CameraOptions): Promise<Photo> {
  // Check if we're in a native Capacitor context
  if (window.Capacitor?.isNativePlatform()) {
    return Camera.getPhoto(options);
  }
  
  // Web fallback using MediaDevices API
  const stream = await navigator.mediaDevices.getUserMedia({
    video: {
      facingMode: options.direction === 'front' ? 'user' : 'environment',
      width: options.width || undefined,
      height: options.height || undefined,
    }
  });
  
  // Create video element to capture frame
  const video = document.createElement('video');
  video.srcObject = stream;
  await video.play();
  
  // Draw frame to canvas
  const canvas = document.createElement('canvas');
  canvas.width = video.videoWidth;
  canvas.height = video.videoHeight;
  const ctx = canvas.getContext('2d')!;
  ctx.drawImage(video, 0, 0);
  
  // Stop stream
  stream.getTracks().forEach(track => track.stop());
  
  // Convert to base64
  const dataUrl = canvas.toDataURL('image/jpeg', options.quality / 100);
  
  return {
    base64String: dataUrl.split(',')[1],
    format: 'jpeg',
    webPath: dataUrl,
  };
}

Testing Strategy

Unit Tests

describe('CameraNode', () => {
  describe('web fallback', () => {
    it('should use MediaDevices API when not in native context', async () => {
      const mockGetUserMedia = jest.fn().mockResolvedValue(mockStream);
      navigator.mediaDevices.getUserMedia = mockGetUserMedia;
      
      const node = new CameraNode();
      node.setInput('source', 'camera');
      await node.executeCapture();
      
      expect(mockGetUserMedia).toHaveBeenCalledWith({
        video: expect.any(Object),
      });
    });
  });
  
  describe('native context', () => {
    beforeEach(() => {
      window.Capacitor = { isNativePlatform: () => true };
    });
    
    it('should use Capacitor Camera plugin', async () => {
      const mockGetPhoto = jest.fn().mockResolvedValue(mockPhoto);
      Camera.getPhoto = mockGetPhoto;
      
      const node = new CameraNode();
      await node.executeCapture();
      
      expect(mockGetPhoto).toHaveBeenCalled();
    });
  });
});

Integration Tests

describe('Capacitor Export', () => {
  it('should detect required plugins from node graph', async () => {
    const project = createTestProject([
      { type: 'Camera Capture' },
      { type: 'Geolocation' },
      { type: 'Text' }, // Not a Capacitor node
    ]);
    
    const detector = new PluginDetector(project);
    const plugins = detector.getRequiredPlugins();
    
    expect(plugins).toEqual([
      '@capacitor/camera',
      '@capacitor/geolocation',
    ]);
  });
  
  it('should generate valid capacitor.config.ts', async () => {
    const exporter = new CapacitorExporter(mockProject);
    const config = await exporter.generateConfig();
    
    expect(config).toContain("appId: 'com.test.app'");
    expect(config).toContain("appName: 'Test App'");
  });
});

Manual Testing Checklist

• Create new Capacitor-target project
• Add Camera node, verify web fallback works
• Enable Capacitor preview mode
• Launch iOS Simulator with live-reload
• Take photo in simulator, verify it appears in Noodl
• Export project for iOS
• Open in Xcode, build successfully
• Run on physical iPhone, verify all features work

Success Criteria

Criteria	Target
Hot-reload latency	< 2 seconds from save to device update
Export time	< 30 seconds for complete Capacitor project
Xcode build success	First-time build succeeds without manual fixes
Plugin detection accuracy	100% of used plugins detected automatically
Web fallback coverage	All Capacitor nodes have functional web fallbacks

Future Enhancements

Phase B+ Features (Post-MVP)

1. Capacitor Plugins Marketplace - Browse and install community plugins
2. Native UI Components - Use platform-native UI (iOS UIKit, Android Material)
3. Background Tasks - Run code when app is backgrounded
4. Deep Linking - Handle custom URL schemes
5. In-App Purchases - Integrate with App Store / Play Store purchases
6. App Store Deployment - One-click submit to stores (via Fastlane)

Advanced Native Integration

For users who need more native control:

// Custom Capacitor Plugin Node
// Allows calling any Capacitor plugin method

interface CustomPluginNodeInputs {
  pluginName: string;      // e.g., "@capacitor/camera"
  methodName: string;      // e.g., "getPhoto"
  options: object;         // Method parameters
}

// This enables using ANY Capacitor plugin, even community ones