Trey t 65476e2d66 Implement freemium subscription system - Shared Kotlin models (Phase 4)
Shared Kotlin Features:
- Complete subscription data models with kotlinx.serialization
- SubscriptionApi client for all backend endpoints
- SubscriptionCache for storing subscription state
- SubscriptionHelper utility for checking user limits

Models (Subscription.kt):
- SubscriptionStatus (tier, usage, limits, master toggle flag)
- UsageStats (current usage counts)
- TierLimits (tier-specific limits, null = unlimited)
- UpgradeTriggerData (configurable prompts)
- FeatureBenefit (Free vs Pro comparison)
- Promotion (seasonal campaigns)
- ReceiptVerificationRequest/Response
- PurchaseVerificationRequest/Response

API Client (SubscriptionApi.kt):
- getSubscriptionStatus() - fetch user subscription
- getUpgradeTriggers() - fetch upgrade prompts
- getFeatureBenefits() - fetch tier comparison
- getActivePromotions() - fetch active promotions
- verifyIOSReceipt() - verify Apple purchase
- verifyAndroidPurchase() - verify Google purchase

Cache (SubscriptionCache.kt):
- Stores currentSubscription in mutableState
- Stores upgradeTriggers, featureBenefits, promotions
- Reactive state for UI observation
- clear() method for logout

Helper (SubscriptionHelper.kt):
- canAddProperty() - check property limit
- canAddTask() - check task limit
- shouldShowUpgradePromptForContractors() - check if should show upgrade screen
- shouldShowUpgradePromptForDocuments() - check if should show upgrade screen
- Respects master toggle (limitationsEnabled)
- Returns UsageCheck(allowed, triggerKey)

Next: iOS StoreKit implementation (Phase 5)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-24 13:30:53 -06:00
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This is a Kotlin Multiplatform project targeting Android, iOS, Web, Desktop (JVM).

  • /composeApp is for code that will be shared across your Compose Multiplatform applications. It contains several subfolders:

    • commonMain is for code thats common for all targets.
    • Other folders are for Kotlin code that will be compiled for only the platform indicated in the folder name. For example, if you want to use Apples CoreCrypto for the iOS part of your Kotlin app, the iosMain folder would be the right place for such calls. Similarly, if you want to edit the Desktop (JVM) specific part, the jvmMain folder is the appropriate location.
  • /iosApp contains iOS applications. Even if youre sharing your UI with Compose Multiplatform, you need this entry point for your iOS app. This is also where you should add SwiftUI code for your project.

Build and Run Android Application

To build and run the development version of the Android app, use the run configuration from the run widget in your IDEs toolbar or build it directly from the terminal:

  • on macOS/Linux
    ./gradlew :composeApp:assembleDebug
    
  • on Windows
    .\gradlew.bat :composeApp:assembleDebug
    

Build and Run Desktop (JVM) Application

To build and run the development version of the desktop app, use the run configuration from the run widget in your IDEs toolbar or run it directly from the terminal:

  • on macOS/Linux
    ./gradlew :composeApp:run
    
  • on Windows
    .\gradlew.bat :composeApp:run
    

Build and Run Web Application

To build and run the development version of the web app, use the run configuration from the run widget in your IDE's toolbar or run it directly from the terminal:

  • for the Wasm target (faster, modern browsers):
    • on macOS/Linux
      ./gradlew :composeApp:wasmJsBrowserDevelopmentRun
      
    • on Windows
      .\gradlew.bat :composeApp:wasmJsBrowserDevelopmentRun
      
  • for the JS target (slower, supports older browsers):
    • on macOS/Linux
      ./gradlew :composeApp:jsBrowserDevelopmentRun
      
    • on Windows
      .\gradlew.bat :composeApp:jsBrowserDevelopmentRun
      

Build and Run iOS Application

To build and run the development version of the iOS app, use the run configuration from the run widget in your IDEs toolbar or open the /iosApp directory in Xcode and run it from there.


Learn more about Kotlin Multiplatform, Compose Multiplatform, Kotlin/Wasm

We would appreciate your feedback on Compose/Web and Kotlin/Wasm in the public Slack channel #compose-web. If you face any issues, please report them on YouTrack.

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