Nova

Nova manages three parallel state areas simultaneously: the document library (list of documents, active selection, search filter), the rich text editor (content, formatting state), and the AI chat panel (conversation history, streaming state, active prompt). Each lives in its own context provider, with a coordination layer that writes the AI's generated response directly into the active document in the editor when the user accepts a suggestion.

The simulated AI streaming effect is implemented using setInterval with a token queue. When the AI responds, the full response string is split into tokens, pushed onto a queue, and dequeued one token per interval tick — creating the visual impression of real model streaming. The interval speed is varied with a small random offset per tick to avoid the mechanical regularity that makes fake streaming feel obviously faked.

The rich text editor is a controlled textarea with a formatting toolbar that wraps selected text in Markdown syntax (** for bold, * for italic, > for blockquote). A custom useSelection hook tracks the selection range in the textarea, so toolbar actions operate on the currently highlighted text rather than the full document. Multiple documents can be open simultaneously, each with its own content stored in the library state and swapped into the editor when the active document changes.