# License

This document provides a comprehensive overview of third-party libraries used in the Firework Android SDK and their respective licenses.

## License Summary

All third-party dependencies in this SDK are distributed under permissive open-source licenses that **permit commercial use** without requiring disclosure of proprietary source code.

| License Type | Commercial Use | Copyleft | Patent Grant |
| ------------ | -------------- | -------- | ------------ |
| Apache 2.0   | ✅ Permitted    | No       | Yes          |
| MIT          | ✅ Permitted    | No       | No           |

***

## Third-Party Dependencies

### Kotlin & Coroutines

| Library                    | Version | License    | Source                                                    |
| -------------------------- | ------- | ---------- | --------------------------------------------------------- |
| kotlin-stdlib              | 1.8.22  | Apache 2.0 | [JetBrains](https://github.com/JetBrains/kotlin)          |
| kotlin-reflect             | 1.8.22  | Apache 2.0 | [JetBrains](https://github.com/JetBrains/kotlin)          |
| kotlinx-coroutines-core    | 1.7.3   | Apache 2.0 | [JetBrains](https://github.com/Kotlin/kotlinx.coroutines) |
| kotlinx-coroutines-android | 1.7.3   | Apache 2.0 | [JetBrains](https://github.com/Kotlin/kotlinx.coroutines) |

### AndroidX Libraries

| Library                                    | Version | License    |
| ------------------------------------------ | ------- | ---------- |
| androidx.appcompat:appcompat               | 1.4.1   | Apache 2.0 |
| androidx.core:core-ktx                     | 1.7.0   | Apache 2.0 |
| androidx.constraintlayout:constraintlayout | 2.1.3   | Apache 2.0 |
| androidx.lifecycle:lifecycle-runtime-ktx   | 2.6.2   | Apache 2.0 |
| androidx.lifecycle:lifecycle-viewmodel-ktx | 2.6.2   | Apache 2.0 |
| androidx.preference:preference-ktx         | 1.2.0   | Apache 2.0 |
| androidx.recyclerview:recyclerview         | 1.2.1   | Apache 2.0 |
| androidx.fragment:fragment-ktx             | 1.3.6   | Apache 2.0 |
| androidx.databinding:viewbinding           | 8.4.2   | Apache 2.0 |
| androidx.annotation:annotation             | 1.5.0   | Apache 2.0 |

### Google Libraries

| Library                              | Version      | License    | Source                                                                       |
| ------------------------------------ | ------------ | ---------- | ---------------------------------------------------------------------------- |
| com.google.android.material:material | 1.6.0        | Apache 2.0 | [Google](https://github.com/material-components/material-components-android) |
| com.google.guava:guava               | 27.1-android | Apache 2.0 | [Google](https://github.com/google/guava)                                    |
| com.google.code.gson:gson            | 2.10.1       | Apache 2.0 | [Google](https://github.com/google/gson)                                     |

### Square Libraries

| Library                     | Version | License    | Source                                     |
| --------------------------- | ------- | ---------- | ------------------------------------------ |
| com.squareup.okhttp3:okhttp | 4.11.0  | Apache 2.0 | [Square](https://github.com/square/okhttp) |
| com.squareup.okio:okio      | 3.2.0   | Apache 2.0 | [Square](https://github.com/square/okio)   |

### Other Libraries

| Library                   | Version | License    | Source                                                     |
| ------------------------- | ------- | ---------- | ---------------------------------------------------------- |
| org.jetbrains:annotations | 23.0.0  | Apache 2.0 | [JetBrains](https://github.com/JetBrains/java-annotations) |

***

## Firework Modified Libraries

The following libraries are modified versions maintained by Firework:

| Library                                     | Base Version | License    | Modifications                                |
| ------------------------------------------- | ------------ | ---------- | -------------------------------------------- |
| com.firework.android.exoplayer:exoplayer-\* | 2.16.1.7     | Apache 2.0 | Custom build with SDK-specific optimizations |
| com.firework.gson:gson                      | 2.10.1.0     | Apache 2.0 | Repackaged to avoid classpath conflicts      |
| com.firework:android-phoenix-client         | 1.3.1.1      | MIT        | WebSocket client for Phoenix channels        |

***

## License Compatibility Assessment

| Risk Category     | Status         | Notes                                      |
| ----------------- | -------------- | ------------------------------------------ |
| GPL Contamination | ✅ None         | No GPL-licensed dependencies detected      |
| LGPL Restrictions | ✅ None         | No LGPL-licensed dependencies detected     |
| Commercial Use    | ✅ Permitted    | All licenses allow commercial distribution |
| Patent Exposure   | ✅ Low Risk     | Apache 2.0 provides explicit patent grant  |
| Source Disclosure | ✅ Not Required | No copyleft licenses present               |

***

## Document Information

| Field         | Value                                |
| ------------- | ------------------------------------ |
| Last Updated  | December 2025                        |
| SDK Version   | Applicable to all versions           |
| Review Status | Approved for commercial distribution |

***

*This document is provided for informational purposes. For legal advice regarding specific use cases, consult qualified legal counsel.*


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