textinput bubble with bash history (bubbles#631)

main.go

package main

import (
	"fmt"
	"log"
	"os/exec"
	"strings"

	"github.com/charmbracelet/bubbles/help"
	"github.com/charmbracelet/bubbles/textinput"
	tea "github.com/charmbracelet/bubbletea"
	"github.com/charmbracelet/lipgloss"
)

type gotHistorySuccessMsg []string

func main() {
	p := tea.NewProgram(initialModel())
	if _, err := p.Run(); err != nil {
		log.Fatal(err)
	}
}

func getHistory() tea.Msg {
	cmd := exec.Command("bash", "-c", "history -r ~/.bash_history; history | cut -c 8-")
	stdout, err := cmd.Output()
	if err != nil {
		fmt.Println(err.Error())
		return []string{"no results"}
	}
	return gotHistorySuccessMsg(strings.Split(fmt.Sprintf("%s", stdout), "\n"))
}

type model struct {
	textInput textinput.Model
	help      help.Model
}

func initialModel() model {
	ti := textinput.New()
	ti.Placeholder = "history"
	ti.Prompt = "$ "
	ti.PromptStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("63"))
	ti.Cursor.Style = lipgloss.NewStyle().Foreground(lipgloss.Color("63"))
	ti.Focus()
	ti.CharLimit = 50
	ti.Width = 20
	ti.ShowSuggestions = true

	h := help.New()

	return model{textInput: ti, help: h}
}

func (m model) Init() tea.Cmd {
	return tea.Batch(getHistory, textinput.Blink)
}

func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
	switch msg := msg.(type) {
	case tea.KeyMsg:
		switch msg.Type {
		case tea.KeyEnter, tea.KeyCtrlC, tea.KeyEsc:
			return m, tea.Quit
		}
	case gotHistorySuccessMsg:
		m.textInput.SetSuggestions(msg)
	}

	var cmd tea.Cmd
	m.textInput, cmd = m.textInput.Update(msg)
	return m, cmd
}

func (m model) View() string {
	return m.textInput.View()
}