refactor(haru): use hooks, loading spinner, dotenv manage

[kwaa]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @kwaa, 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 significantly refactors the haru chat application to improve its maintainability and user experience. By migrating the chat's operational logic into a dedicated React hook, the codebase becomes cleaner and more modular. The introduction of a loading spinner provides immediate visual feedback during AI processing, enhancing interactivity. Furthermore, the change in conversation ID persistence to environment variables offers a more robust and configurable setup for deployment.

Highlights

• Refactored Chat Logic with Hooks: The core chat application logic in chat.tsx has been extracted and encapsulated into a new custom React hook, useHaru, centralizing state management and simplifying the main component.
• Introduced Loading Spinner: A visual loading spinner (ink-spinner) has been integrated into the chat interface to provide better user feedback while AI responses are being generated.
• Updated Conversation ID Management: The method for storing and retrieving the persistent conversation ID has been changed from a local config file (~/.config/haru/id) to using the HARU_CONVERSATION_ID environment variable, enhancing flexibility.
• Dependency Updates: Several new dependencies were added, including @xsai/tool, ink-spinner, swr (for data fetching), temporal-polyfill (for modern date/time API), and zod (for schema validation), to support the new architecture and features.

Changelog

• cspell.config.yaml
  • Added 'sonarjs' to the list of allowed words.
• examples/haru/README.md
  • Updated the description of Haru's memory characteristic from 'Memory-fragile' to 'Memory-honest'.
  • Modified the explanation of persistent identity storage to reference the HARU_CONVERSATION_ID environment variable instead of a local config file.
• examples/haru/package.json
  • Added new dependencies: @xsai/tool, ink-spinner, swr, temporal-polyfill, and zod.
• examples/haru/src/chat.tsx
  • Refactored chat handling logic into the useHaru hook.
  • Removed direct state management for messages and loading status, delegating to useHaru.
  • Integrated ink-spinner component to display loading state.
  • Simplified command handling by calling methods from the useHaru hook.
• examples/haru/src/docs/PROMPT.md
  • Updated the placeholder for recent memory in the prompt template from {recentMemory()} to {recent_memory}.
• examples/haru/src/hooks/use-haru.ts
  • Added a new React hook useHaru to encapsulate all chat-related logic, including message state, API interactions, and tool execution.
  • Implemented useSWR and useSWRMutation for efficient data fetching and mutation.
  • Utilized temporal-polyfill for precise time and duration calculations in system prompts.
• examples/haru/src/vite-env.d.ts
  • Added comprehensive type definitions for Intl.DurationFormat to support temporal duration formatting.
• pnpm-lock.yaml
  • Updated the lockfile to reflect the addition of new dependencies and their transitive dependencies.

Activity

• The pull request was opened by kwaa, introducing a significant refactor to the haru application.

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[gemini-code-assist]

Code Review

This pull request is a solid refactoring of the Haru example application. It effectively introduces the useHaru custom hook to encapsulate chat logic, leverages swr for cleaner data fetching, and improves the user experience with a new loading spinner. The code is now more modular and maintainable. My review includes a few suggestions to enhance robustness by handling missing environment variables and preventing user input during loading states, along with a minor documentation formatting fix.