feat: Add charmbracelet TUI for gt feed (gt-u7dxq)
- Add bubbletea and bubbles dependencies - Create internal/tui/feed package with: - model.go: Main bubbletea model with agent tree and event stream - view.go: Rendering logic with lipgloss styling - keys.go: Vim-style key bindings (j/k, tab, /, q) - styles.go: Color palette and component styles - events.go: Event source from bd activity - Update gt feed to use TUI by default (--plain for text mode) - TUI features: agent tree by role, event stream, keyboard nav Closes gt-be0as, gt-lexye, gt-1uhmj 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Steve Yegge
298
internal/tui/feed/model.go
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298
internal/tui/feed/model.go
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package feed
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import (
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"time"
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"github.com/charmbracelet/bubbles/help"
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"github.com/charmbracelet/bubbles/key"
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"github.com/charmbracelet/bubbles/viewport"
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tea "github.com/charmbracelet/bubbletea"
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)
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// Panel represents which panel has focus
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type Panel int
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const (
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PanelTree Panel = iota
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PanelFeed
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)
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// Event represents an activity event
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type Event struct {
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Time time.Time
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Type string // create, update, complete, fail, delete
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Actor string // who did it (e.g., "gastown/crew/joe")
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Target string // what was affected (e.g., "gt-xyz")
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Message string // human-readable description
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Rig string // which rig
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Role string // actor's role
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Raw string // raw line for fallback display
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}
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// Agent represents an agent in the tree
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type Agent struct {
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ID string
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Name string
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Role string // mayor, witness, refinery, crew, polecat
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Rig string
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Status string // running, idle, working, dead
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LastEvent *Event
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LastUpdate time.Time
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Expanded bool
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}
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// Rig represents a rig with its agents
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type Rig struct {
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Name string
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Agents map[string]*Agent // keyed by role/name
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Expanded bool
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}
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// Model is the main bubbletea model for the feed TUI
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type Model struct {
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// Dimensions
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width int
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height int
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// Panels
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focusedPanel Panel
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treeViewport viewport.Model
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feedViewport viewport.Model
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// Data
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rigs map[string]*Rig
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events []Event
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// UI state
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keys KeyMap
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help help.Model
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showHelp bool
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filter string
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filterActive bool
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err error
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// Event source
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eventChan <-chan Event
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done chan struct{}
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}
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// NewModel creates a new feed TUI model
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func NewModel() Model {
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h := help.New()
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h.ShowAll = false
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return Model{
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focusedPanel: PanelTree,
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treeViewport: viewport.New(0, 0),
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feedViewport: viewport.New(0, 0),
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rigs: make(map[string]*Rig),
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events: make([]Event, 0, 1000),
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keys: DefaultKeyMap(),
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help: h,
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done: make(chan struct{}),
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}
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}
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// Init initializes the model
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func (m Model) Init() tea.Cmd {
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return tea.Batch(
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m.listenForEvents(),
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tea.SetWindowTitle("GT Feed"),
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)
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}
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// eventMsg is sent when a new event arrives
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type eventMsg Event
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// tickMsg is sent periodically to refresh the view
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type tickMsg time.Time
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// listenForEvents returns a command that listens for events
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func (m Model) listenForEvents() tea.Cmd {
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if m.eventChan == nil {
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return nil
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}
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return func() tea.Msg {
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select {
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case event, ok := <-m.eventChan:
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if !ok {
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return nil
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}
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return eventMsg(event)
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case <-m.done:
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return nil
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}
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}
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}
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// tick returns a command for periodic refresh
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func tick() tea.Cmd {
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return tea.Tick(time.Second, func(t time.Time) tea.Msg {
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return tickMsg(t)
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})
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}
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// Update handles messages
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func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
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var cmds []tea.Cmd
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switch msg := msg.(type) {
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case tea.KeyMsg:
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return m.handleKey(msg)
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case tea.WindowSizeMsg:
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m.width = msg.Width
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m.height = msg.Height
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m.updateViewportSizes()
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case eventMsg:
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m.addEvent(Event(msg))
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cmds = append(cmds, m.listenForEvents())
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case tickMsg:
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cmds = append(cmds, tick())
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}
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// Update viewports
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var cmd tea.Cmd
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if m.focusedPanel == PanelTree {
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m.treeViewport, cmd = m.treeViewport.Update(msg)
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} else {
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m.feedViewport, cmd = m.feedViewport.Update(msg)
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}
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cmds = append(cmds, cmd)
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return m, tea.Batch(cmds...)
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}
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// handleKey processes key presses
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func (m Model) handleKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
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switch {
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case key.Matches(msg, m.keys.Quit):
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close(m.done)
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return m, tea.Quit
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case key.Matches(msg, m.keys.Help):
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m.showHelp = !m.showHelp
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m.help.ShowAll = m.showHelp
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return m, nil
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case key.Matches(msg, m.keys.Tab):
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if m.focusedPanel == PanelTree {
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m.focusedPanel = PanelFeed
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} else {
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m.focusedPanel = PanelTree
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}
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return m, nil
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case key.Matches(msg, m.keys.FocusTree):
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m.focusedPanel = PanelTree
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return m, nil
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case key.Matches(msg, m.keys.FocusFeed):
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m.focusedPanel = PanelFeed
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return m, nil
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case key.Matches(msg, m.keys.Refresh):
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m.updateViewContent()
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return m, nil
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}
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// Pass to focused viewport
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var cmd tea.Cmd
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if m.focusedPanel == PanelTree {
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m.treeViewport, cmd = m.treeViewport.Update(msg)
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} else {
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m.feedViewport, cmd = m.feedViewport.Update(msg)
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}
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return m, cmd
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}
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// updateViewportSizes recalculates viewport dimensions
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func (m *Model) updateViewportSizes() {
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// Reserve space: header (1) + borders (4) + status bar (1) + help (1-2)
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headerHeight := 1
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statusHeight := 1
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helpHeight := 1
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if m.showHelp {
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helpHeight = 3
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}
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borderHeight := 4 // top and bottom borders for both panels
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availableHeight := m.height - headerHeight - statusHeight - helpHeight - borderHeight
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if availableHeight < 4 {
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availableHeight = 4
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}
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// Split 40% tree, 60% feed
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treeHeight := availableHeight * 40 / 100
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feedHeight := availableHeight - treeHeight
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contentWidth := m.width - 4 // borders and padding
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if contentWidth < 20 {
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contentWidth = 20
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}
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m.treeViewport.Width = contentWidth
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m.treeViewport.Height = treeHeight
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m.feedViewport.Width = contentWidth
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m.feedViewport.Height = feedHeight
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m.updateViewContent()
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}
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// updateViewContent refreshes the content of both viewports
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func (m *Model) updateViewContent() {
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m.treeViewport.SetContent(m.renderTree())
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m.feedViewport.SetContent(m.renderFeed())
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}
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// addEvent adds an event and updates the agent tree
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func (m *Model) addEvent(e Event) {
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m.events = append(m.events, e)
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// Keep max 1000 events
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if len(m.events) > 1000 {
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m.events = m.events[len(m.events)-1000:]
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}
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// Update agent tree
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if e.Rig != "" {
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rig, ok := m.rigs[e.Rig]
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if !ok {
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rig = &Rig{
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Name: e.Rig,
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Agents: make(map[string]*Agent),
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Expanded: true,
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}
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m.rigs[e.Rig] = rig
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}
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if e.Actor != "" {
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agent, ok := rig.Agents[e.Actor]
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if !ok {
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agent = &Agent{
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ID: e.Actor,
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Name: e.Actor,
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Role: e.Role,
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Rig: e.Rig,
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}
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rig.Agents[e.Actor] = agent
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}
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agent.LastEvent = &e
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agent.LastUpdate = e.Time
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}
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}
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m.updateViewContent()
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}
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// SetEventChannel sets the channel to receive events from
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func (m *Model) SetEventChannel(ch <-chan Event) {
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m.eventChan = ch
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}
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// View renders the TUI
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func (m Model) View() string {
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return m.render()
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}
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