feat(fcm): Add support for bandwidth constrained and restricted satellite APIs

[jonathanedey]

This change introduces the BandwidthConstrainedOk and RestrictedSatelliteOk properties to the AndroidConfig object to give developers more granular control over message delivery in resource-constrained environments. By configuring these options, developers can explicitly specify whether a notification should be allowed to be delivered when the receiving device is in a bandwidth-constrained state or when it is connected via a restricted satellite network.

[gemini-code-assist]

Summary of Changes

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This pull request enhances the Firebase Cloud Messaging (FCM) capabilities by allowing developers to specify delivery preferences for Android devices operating under specific network constraints. By adding two new boolean flags to the AndroidConfig object, the system can now be configured to permit or restrict message delivery when a device is using a bandwidth-constrained network or a restricted satellite connection, thereby optimizing resource usage and ensuring critical messages reach their intended recipients in challenging environments.

Highlights

• New AndroidConfig Properties: Introduced BandwidthConstrainedOk and RestrictedSatelliteOk boolean properties to the AndroidConfig object, allowing developers to control message delivery based on network conditions.
• Enhanced Message Delivery Control: These new properties provide granular control over whether FCM messages should be delivered when a device is in a bandwidth-constrained state (e.g., Data Saver mode) or connected via a restricted satellite network.
• Test Coverage: Added integration and unit tests to validate the functionality and serialization/deserialization of the new BandwidthConstrainedOk and RestrictedSatelliteOk properties within AndroidConfig.

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Changelog

• FirebaseAdmin/FirebaseAdmin.IntegrationTests/FirebaseMessagingTest.cs
  • Added BandwidthConstrainedOk and RestrictedSatelliteOk properties to AndroidConfig instances in SendAsync test.
  • Added BandwidthConstrainedOk and RestrictedSatelliteOk properties to AndroidConfig instances in SendEachAsync test.
• FirebaseAdmin/FirebaseAdmin.Tests/Messaging/MessageTest.cs
  • Included BandwidthConstrainedOk and RestrictedSatelliteOk in AndroidConfig object creation for testing.
  • Added bandwidth_constrained_ok and restricted_satellite_ok to JSON object for AndroidConfig serialization test.
  • Set BandwidthConstrainedOk and RestrictedSatelliteOk values for AndroidConfig deserialization test.
  • Added assertions for BandwidthConstrainedOk and RestrictedSatelliteOk during AndroidConfig deserialization verification.
• FirebaseAdmin/FirebaseAdmin/Messaging/AndroidConfig.cs
  • Added BandwidthConstrainedOk property with JSON property attribute and XML documentation.
  • Added RestrictedSatelliteOk property with JSON property attribute and XML documentation.
  • Included BandwidthConstrainedOk and RestrictedSatelliteOk in the CopyAndValidate method.

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[gemini-code-assist]

Code Review

This pull request adds support for BandwidthConstrainedOk and RestrictedSatelliteOk properties to the AndroidConfig object. The implementation includes adding the nullable boolean properties with appropriate JSON serialization attributes to AndroidConfig.cs. The CopyAndValidate method has been correctly updated to handle these new properties. The pull request also includes updates to unit tests in MessageTest.cs to verify serialization and deserialization, and integration tests in FirebaseMessagingTest.cs to ensure the new properties are correctly handled in API requests. The changes appear correct and complete.

[lahirumaramba]

Thanks! LGTM!