🧾 GoogleBilling — With Hilt + Without Hilt

A reusable, clean, and modern implementation of Google Play Billing using Kotlin, Dagger Hilt, and coroutines.
Supports one-time purchases (INAPP) and subscriptions (SUBS) with proper handling for purchase states, errors, and acknowledgment.

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📦 Features

• ✅ Supports in-app purchases and subscriptions
• ✅ Handles acknowledgment, pending, and already purchased states
• ✅ Uses BillingClient with proper lifecycle handling
• ✅ Coroutine-powered product querying
• ✅ Plug-and-play callback interface (BillingPurchaseCallback)
• ✅ Built with Dagger Hilt for dependency injection

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📚 Prerequisites

• ✅ Billing Library
• ✅ Dependency Injection (Dagger/Hilt)
• ✅ NO Dependency Injection (Dagger/Hilt) with Util as an Object