itor/gui/select.go

package gui

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

func (m *model) updateSelect(msg tea.Msg) (tea.Model, tea.Cmd) {
	switch msg := msg.(type) {

	// Is it a key press?
	case tea.KeyMsg:
		switch msg.String() {
		case "ctrl+c", "q":
			return m, tea.Quit

		// The "up" and "k" keys move the selectCardIndex up
		case "up", "k":
			if m.selectCardIndex > 0 {
				m.selectCardIndex--
			}

		// The "down" and "j" keys move the selectCardIndex down
		case "down", "j":
			if m.selectCardIndex < len(m.cards)-1 {
				m.selectCardIndex++
			}

		// MODES
		case "d":
			m.switchMode(Draw)
		case "c":
			m.switchMode(Create)

		// The "enter" key and the spacebar (a literal space) toggle
		// the selected state for the item that the selectCardIndex is pointing at.
		case "enter", " ":
			_, ok := m.selected[m.selectCardIndex]
			if ok {
				delete(m.selected, m.selectCardIndex)
			} else {
				m.selected[m.selectCardIndex] = struct{}{}
			}
		}
	}

	return m, nil
}
func (m *model) viewSelect() string {
	s := "Select cards to query:\n\n"

	// Iterate over our choices
	for i, choice := range m.cards {

		// Is the selectCardIndex pointing at this choice?
		cursor := " " // no selectCardIndex
		if m.selectCardIndex == i {
			cursor = ">" // selectCardIndex!
		}

		// Is this choice selected?
		checked := " " // not selected
		if _, ok := m.selected[i]; ok {
			checked = "✓" // selected!
		}

		// Render the row
		s += fmt.Sprintf("%s [%s] %s\n", cursor, checked, choice.Front)
	}

	// The footer
	s += "\nPress [up/down/j/k] to Move up and down.\nPress [enter/space] to toggle selection.\n"
	s += "\nPress [c] to Create.\nPress [d] to Draw.\nPress [q] to quit.\n"

	// Send the UI for rendering
	return s
}