feature/ Catalog implementation - Updated folder structure and added Catalog to activity bar

[aditee-accenture]

Catalog Implementation: This feature is to expand the Dataset Explorer panel's scope from displaying only native BigQuery assets to include both BigQuery and BigLake assets.

Changes included in the CL:

1. Renamed the Dataset Explorer to Catalog in Primary Activity bar.
2. To align with the broader scope, the internal directory structure has been refactored to reflect the new Catalog architecture. The src/bigQuery directory was migrated into a new src/catalog folder, separating the main widget into src/catalog/bigquery/ and reusable components into src/catalog/common/.

[gemini-code-assist]

Summary of Changes

Hello, 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 enhancement to the data exploration capabilities by expanding the "Dataset Explorer" panel to a more comprehensive "Catalog." This change allows users to view and interact with both BigQuery and BigLake assets, moving beyond the previous BigQuery-only scope. To support this broader functionality and improved organization, the internal codebase has undergone a substantial refactoring, establishing a new src/catalog directory structure.

Highlights

• Renamed Dataset Explorer to Catalog: The "Dataset Explorer" panel in the Primary Activity bar has been renamed to "Catalog" to reflect its expanded scope.
• Refactored Directory Structure: The internal directory structure has been reorganized, migrating src/bigQuery to src/catalog, with the main widget in src/catalog/bigquery/ and reusable components in src/catalog/common/.
• Expanded Data Asset Scope: The Catalog now supports displaying both native BigQuery and BigLake assets, broadening its data exploration capabilities.

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Changelog

• src/catalog/bigquery/bigqueryWidgetService.ts
  • Added a new service file containing static asynchronous methods for interacting with various BigQuery APIs, including previewing data, fetching schema, listing datasets and tables, retrieving dataset/table information, listing projects, and performing searches.
• src/catalog/catalog.tsx
  • Added a new React component that implements the Catalog user interface, featuring a tree view for projects, datasets, and tables, and handling loading states and API errors.
• src/index.ts
  • Updated imports and references to reflect the renaming of "Dataset Explorer" to "Catalog" and the new CatalogWidget.
  • Replaced datasetExplorerIcon with catalogIcon and BigQueryWidget with CatalogWidget throughout the file.
  • Adjusted theme-related icon assignments to use the new catalogIcon and catalogIconDark.
  • Modified the logging message to reflect "Catalog is enabled."
• style/icons/catalog_icon_dark.svg
  • Added a new SVG icon for the Catalog in dark theme.
• style/icons/catalog_icon_light.svg
  • Added a new SVG icon for the Catalog in light theme.

Activity

• No human activity (comments, reviews, progress updates) has been recorded for this pull request yet.

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[gemini-code-assist]

Code Review

This pull request introduces a significant refactoring by renaming the 'Dataset Explorer' to 'Catalog' and restructuring the project directories accordingly. While the changes are extensive and lay the groundwork for the new Catalog feature, I've identified a few issues. There is a critical bug in src/index.ts that will prevent the new Catalog widget from refreshing correctly. Additionally, the new bigqueryWidgetService.ts contains several instances of dead code, unused variables, and typos in error messages. The new catalog.tsx component also has a console.log statement and a state variable that is not being used correctly. Addressing these points will improve the code's correctness and maintainability.