feat: integrate Jinja2 for templating and restructure HTML components #86
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…or language selection
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Summary of ChangesHello @TimilsinaBimal, 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 significant architectural overhaul to the application's frontend and configuration handling. By integrating Jinja2, the HTML rendering becomes more robust and maintainable. Concurrently, the JavaScript codebase has been modularized, enhancing code organization and future extensibility. Backend logic for fetching languages and managing catalog item limits has also been refined, contributing to a cleaner and more efficient system overall. Highlights
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Code Review
This pull request is a significant and well-executed refactoring of the frontend. The introduction of Jinja2 for templating and the restructuring of JavaScript into ES modules are excellent improvements that greatly enhance code organization, maintainability, and readability. The frontend is now much cleaner and follows modern web development practices. However, I have one major concern regarding the removal of the block_missing_token_middleware, which could have security and performance implications. I've also noted a minor consistency issue in the constants file.
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app/core/app.py (50-74)
The block_missing_token_middleware has been removed. This middleware provided IP-based rate-limiting for invalid token requests, which is a crucial security and performance feature. It prevented abuse and reduced load on the token_store (Redis) by short-circuiting requests for known-missing tokens and blocking IPs that made too many such requests. Its removal could expose the application to denial-of-service attacks or performance degradation from clients (or bots) repeatedly using invalid tokens. Please consider reintroducing this middleware or a similar rate-limiting mechanism.
app/core/constants.py (3)
The new constant DEFAULT_CATALOG_LIMIT is missing a type hint, while other constants in this file have them. Maintaining consistent use of type hints improves code readability and allows static analysis tools to catch potential errors.
DEFAULT_CATALOG_LIMIT: int = 20
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/gemini review |
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Code Review
This pull request significantly refactors the frontend and backend logic related to language fetching, catalog management, and UI rendering. On the backend, the language fetching logic was extracted into a dedicated fetch_languages_list function in app/api/endpoints/meta.py, which now also sorts the results. The app/core/app.py file was updated to use Jinja2 templating for the /configure page, removing manual HTML string manipulation and integrating the new language fetching function. This change also involved removing the os import and adding jinja2 to dependencies. Catalog item limits (min_items, max_items) were removed from app/core/settings.py and app/services/recommendation/catalog_service.py, replaced by a single DEFAULT_CATALOG_LIMIT and DEFAULT_MIN_ITEMS constant, simplifying how recommendations are fetched and padded. The frontend JavaScript was modularized, with main.js orchestrating new modules for constants, UI, navigation, authentication, catalog management, and form handling. The index.html file was removed, replaced by Jinja2 templates. Review comments suggested renaming an unused token parameter to _token for clarity, adding a type hint to DEFAULT_CATALOG_LIMIT, and removing unnecessary global exposures of JavaScript functions to prevent naming conflicts and improve maintainability.
| content="Watchly API is running. Static files not found.", | ||
| media_type="text/plain", | ||
| status_code=200, | ||
| async def configure_page(request: Request, token: str | None = None): |
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The token parameter is captured from the URL path but is not used within the function. It's a good practice to prefix unused variables with an underscore to make this explicit. This improves code clarity and signals intent to other developers and linters.
| async def configure_page(request: Request, token: str | None = None): | |
| async def configure_page(request: Request, _token: str | None = None): |
| DEFAULT_MIN_ITEMS: int = 20 | ||
| DEFAULT_MAX_ITEMS: int = 32 | ||
| DEFAULT_MIN_ITEMS: int = 8 | ||
| DEFAULT_CATALOG_LIMIT = 20 |
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For consistency with other constants in this file and to leverage Python's type hinting capabilities, it's best to add a type hint to DEFAULT_CATALOG_LIMIT.
| DEFAULT_CATALOG_LIMIT = 20 | |
| DEFAULT_CATALOG_LIMIT: int = 20 |
| window.resetApp = resetApp; | ||
| window.switchSection = switchSection; | ||
| window.unlockNavigation = unlockNavigation; |
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These functions are being exposed on the global window object, but it appears to be unnecessary. The modules that use these functions either have them passed in (resetApp) or import them directly (switchSection, unlockNavigation). Exposing variables and functions globally can lead to naming conflicts and make the code harder to maintain. It's better to rely on module imports and dependency injection.
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