hosts-go/internal/tui/update.go

package tui

import (
	tea "github.com/charmbracelet/bubbletea"
)

// Update handles all messages for the TUI.
func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
	var cmd tea.Cmd
	switch msg := msg.(type) {
	case tea.KeyMsg:
		switch msg.String() {
		case "q", "ctrl+c":
			return m, tea.Quit
		case "tab":
			if m.focus == listPane {
				m.focus = detailPane
			} else {
				m.focus = listPane
			}
		case "up", "k":
			if m.focus == detailPane {
				m.detail.LineUp(1)
			} else {
				m.list, cmd = m.list.Update(msg)
				m.refreshDetail()
			}
			return m, cmd
		case "down", "j":
			if m.focus == detailPane {
				m.detail.LineDown(1)
			} else {
				m.list, cmd = m.list.Update(msg)
				m.refreshDetail()
			}
			return m, cmd
		}
		if m.focus == listPane {
			m.list, cmd = m.list.Update(msg)
			m.refreshDetail()
		}
	case tea.WindowSizeMsg:
		m.width = msg.Width
		m.height = msg.Height - 1
		m.list.SetSize(msg.Width/2, m.height)
		m.detail.Width = msg.Width - msg.Width/2
		m.detail.Height = m.height
		if m.focus == listPane {
			m.list, cmd = m.list.Update(msg)
		}
	default:
		if m.focus == listPane {
			m.list, cmd = m.list.Update(msg)
			m.refreshDetail()
		}
	}
	return m, cmd
}