DOCS: Integrate Algolia Search into Docs

[HamzaAmar]

Goals:

Enable users to quickly find relevant components, documentation, and other resources within the Documentation.

Provide a seamless and intuitive search experience.

Utilize Algolia's robust search capabilities.

Implementation Steps:

1. Set up Algolia Account and Application:

• Create an Algolia account.
• Create a new application within Algolia for the design system.
• Obtain Application ID, Search-Only API Key, and Admin API Key. Securely store these keys (environment variables are recommended).

2. Install necessary dependencies:

• Install the Algolia JavaScript API client: npm install algoliasearch-client-javascript
• Install instantsearch.js for the UI components: npm install instantsearch.js
• Potentially install other relevant UI libraries like React InstantSearch if you prefer pre-built components: npm install react-instantsearch-dom

3. Prepare and Index Data:

• Identify searchable content: Determine which content within the design system should be indexed (e.g., component names, excerpt, documentation pages).
• Data fetching: Implement logic to fetch this data from your existing data sources Markdown files.
• Data transformation: Transform the fetched data into a format suitable for Algolia indexing (JSON records with clear attributes like objectID, name, description, url, etc. Consider hierarchy to prioritize top-level categories/components.)
• Indexing script: Create a script (e.g., using the Algolia API client) to upload the transformed data to your Algolia index. This script might need to be run periodically to keep the index up-to-date.

4. Implement Search UI:

• Create a search input component.
• Use instantsearch.js or react-instantsearch-dom to build the search results display and other UI elements (facets, filters, pagination, etc.).
• Configure the search client with your Application ID and Search-Only API Key.
• Connect the search UI to your Algolia index.
• Style the search UI to match the design system's aesthetics.

5. Testing and Refinement:

• Thoroughly test the search functionality to ensure it returns accurate and relevant results.
• Experiment with different Algolia settings (e.g., ranking rules, synonyms, typo tolerance) to optimize search performance
  and relevance. Algolia's dashboard provides analytics to help with this.
• Gather user feedback and iterate on the search experience.

6. Deployment:

• Deploy the updated design system site with the integrated Algolia search.