Prototype for Server Prompt Templates #1792
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Summary of ChangesHello @paulb777, 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 introduces a prototype for server-side prompt templates within the Firebase AI example application. It provides new UI screens and view models for generating content, images, and chat responses using predefined templates. This enhancement aims to demonstrate a more structured and reusable approach to interacting with generative AI models, although the chat template functionality is currently a work in progress. Highlights
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Code Review
This pull request adds prototypes for using server prompt templates for content generation, Imagen, and Chat. The changes are well-structured, adding new screens and corresponding view models, and updating the main content view to navigate to them. My feedback focuses on improving code quality by removing commented-out code, avoiding force unwraps, and using constants for hardcoded strings to enhance maintainability.
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| @MainActor | ||
| class GenerateContentFromTemplateViewModel: ObservableObject { | ||
| private var logger = Logger(subsystem: Bundle.main.bundleIdentifier!, category: "generative-ai") |
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Force unwrapping Bundle.main.bundleIdentifier can cause a runtime crash if the identifier is unexpectedly nil. It's safer to provide a default value to prevent potential crashes.
| private var logger = Logger(subsystem: Bundle.main.bundleIdentifier!, category: "generative-ai") | |
| private var logger = Logger(subsystem: Bundle.main.bundleIdentifier ?? "com.google.firebase.VertexAISample", category: "generative-ai") |
| NavigationLink { | ||
| GenerateContentFromTemplateScreen(firebaseService: firebaseService) | ||
| } label: { | ||
| Label("Generate Content from Template", systemImage: "doc.text.fill") |
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Hardcoded UI strings should be avoided. It's better to define them as constants in a centralized location to improve maintainability and prepare for localization.
| ConversationFromTemplateScreen(firebaseService: firebaseService, title: "Chat from Template") | ||
| } label: { | ||
| Label("Chat from Template", systemImage: "ellipsis.message") |
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The screen title and Label text are hardcoded. For better maintainability and to ease future localization, it's recommended to define these UI strings as constants.
| NavigationLink { | ||
| ImagenFromTemplateScreen(firebaseService: firebaseService) | ||
| } label: { | ||
| Label("Imagen from Template", systemImage: "camera.circle.fill") |
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Hardcoded UI strings should be avoided. It's better to define them as constants in a centralized location to improve maintainability and prepare for localization.
| Text("Enter your name, then tap on _Go_ to run generateContent from template on it.") | ||
| .padding(.horizontal, 6) | ||
| InputField("Enter your name", text: $userInput) { | ||
| Text("Go") | ||
| } | ||
| .focused($focusedField, equals: .message) | ||
| .onSubmit { onGenerateContentTapped() } |
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The instructional text and input field placeholder are hardcoded. It's a good practice to extract UI strings into a centralized constants structure. This makes the code cleaner, easier to maintain, and ready for localization.
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| init(firebaseService: FirebaseAI) { | ||
| model = firebaseService.templateGenerativeModel() | ||
| // model = firebaseService.generativeModel(modelName: "gemini-2.0-flash-001") |
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This commented-out code should be removed to keep the codebase clean and avoid confusion.
| templateID: "apple-qs-greeting", | ||
| inputs: [ | ||
| "name": name, | ||
| "language": "Spanish", | ||
| ] |
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Hardcoded strings like templateID and language can make the code harder to maintain. Consider extracting them into constants to improve readability and make them easier to update.
2 participants
Adds template examples for Generate Content, Imagen, and Chat.