/tui

name: tui
description: Guide for Splitrail's terminal UI and file watching. Use when modifying the TUI, stats display, or real-time update logic.

Real-Time Monitoring & TUI

Splitrail provides a terminal UI with live updates when analyzer data files change.

Source Files

• `src/tui.rs` - TUI entry point and rendering
• `src/tui/logic.rs` - TUI state management and input handling
• `src/watcher.rs` - File watching implementation

Components

FileWatcher (`src/watcher.rs`)

Watches analyzer data directories for changes using the `notify` crate. Triggers incremental re-parsing on file changes and updates TUI via channels.

RealtimeStatsManager

Coordinates real-time updates: background file watching, auto-upload to Splitrail Cloud (if configured), and stats updates to TUI via `tokio::sync::watch`.

TUI (`src/tui.rs`, `src/tui/logic.rs`)

Terminal interface using `ratatui`:

• Daily stats view with date navigation
• Session view with lazy message loading
• Real-time stats refresh

Key Patterns

• **Channel-based updates** - Stats flow through `tokio::sync::watch` channels
• **Lazy message loading** - Messages loaded on-demand for session view to reduce memory

Adding Watch Support to an Analyzer

Implement `get_watch_directories()` in your analyzer to return root directories for file watching. See `src/analyzer.rs` for the trait definition.