Merge main

[ncooke3]

OK if I merge main into mc/spm?

[gemini-code-assist]

Summary of Changes

Hello @ncooke3, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request performs a significant update and restructuring of the project's quickstart examples and underlying dependencies. It removes outdated quickstarts, introduces new ones for emerging Firebase features, and ensures compatibility with newer iOS versions and development tools.

Highlights

• Quickstart Restructuring: The AdMob and Dynamic Links quickstarts have been completely removed from the project, while new Firebase AI and Firebase Data Connect quickstarts have been introduced.
• Minimum Deployment Target Update: The minimum iOS deployment target across most quickstarts has been consistently raised from iOS 13.0/14.0 to iOS 15.0. Corresponding tvOS deployment targets were also updated to 15.0 where applicable.
• Dependency Version Bumps: Numerous third-party dependencies, including core RubyGems (e.g., activesupport, json) and various Firebase SDKs (e.g., Analytics, Authentication, Crashlytics, Functions, Storage, FirebaseUI), have been updated to their latest versions. This includes a change in Firebase Analytics subspec from AdIdSupport to Default and the addition of GoogleAdsOnDeviceConversion.
• Build System Enhancements: The build environment has been updated to use Xcode 16.4, and a new build flag (ENABLE_DEBUG_DYLIB=NO) was added to prevent potential signing issues with preview dylibs.

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[gemini-code-assist]

Code Review

This pull request appears to merge changes from the main branch, including the removal of deprecated AdMob and Dynamic Links examples and the introduction of a comprehensive new Firebase AI example. The changes also involve updating deployment targets, dependencies, and build scripts across various projects. The new Firebase AI code is well-structured. My review includes a high-severity comment to prevent a potential crash in the function calling example by handling empty API responses more gracefully, and a couple of medium-severity suggestions to improve error feedback to the user in the Imagen example.

[gemini-code-assist]

The use of fatalError here can cause the app to crash if the model returns a response with no candidates, for example, due to safety settings. It's better to handle this case gracefully by setting an error state and displaying a message to the user.

    guard let candidate = content.candidates.first else {
      if let promptFeedback = content.promptFeedback {
        self.error = GenerateContentError.promptBlocked(response: content)
      } else {
        self.error = NSError(domain: "com.google.firebase.quickstart", code: -1, userInfo: [NSLocalizedDescriptionKey: "No candidate in response."])
      }
      messages.removeLast()
      return
    }

[gemini-code-assist]

The reason for images being filtered is only printed to the console. It would be a better user experience to display this information in the UI, for example, by setting the errorMessage property.

Suggested change

	if let filteredReason = response.filteredReason {
	print("Image(s) Blocked: \(filteredReason)")
	}
	if let filteredReason = response.filteredReason {
	errorMessage = "Image(s) Blocked: \(filteredReason)"
	print("Image(s) Blocked: \(filteredReason)")
	}

[gemini-code-assist]

Errors during image generation are logged to the console but not shown to the user. Consider setting the errorMessage property to provide feedback in the UI when an error occurs.

        if !Task.isCancelled {
          logger.error("Error generating images: \(error)")
          errorMessage = error.localizedDescription
        }