From c035f87b30b658f2ddd852ec9f782e702037d526 Mon Sep 17 00:00:00 2001
From: Carlos Alexandro Becker <caarlos0@users.noreply.github.com>
Date: Thu, 5 Dec 2024 16:08:03 -0300
Subject: [PATCH] fix(input): help

---
 input/command.go |  3 +++
 input/input.go   | 36 +++++++++++++++++++++++++++++++++++-
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/input/command.go b/input/command.go
index e14bff011..d055d7229 100644
--- a/input/command.go
+++ b/input/command.go
@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"os"
 
+	"github.com/charmbracelet/bubbles/help"
 	"github.com/charmbracelet/bubbles/textinput"
 	tea "github.com/charmbracelet/bubbletea"
 
@@ -50,6 +51,8 @@ func (o Options) Run() error {
 		timeout:     o.Timeout,
 		hasTimeout:  o.Timeout > 0,
 		autoWidth:   o.Width < 1,
+		showHelp:    o.ShowHelp,
+		help:        help.New(),
 	}, tea.WithOutput(os.Stderr))
 	tm, err := p.Run()
 	if err != nil {
diff --git a/input/input.go b/input/input.go
index eb8f73c2f..f08065294 100644
--- a/input/input.go
+++ b/input/input.go
@@ -10,12 +10,36 @@ package input
 import (
 	"time"
 
+	"github.com/charmbracelet/bubbles/help"
+	"github.com/charmbracelet/bubbles/key"
 	"github.com/charmbracelet/bubbles/textinput"
 	tea "github.com/charmbracelet/bubbletea"
 	"github.com/charmbracelet/gum/timeout"
 	"github.com/charmbracelet/lipgloss"
 )
 
+type keymap textinput.KeyMap
+
+func defaultKeymap() help.KeyMap {
+	k := textinput.DefaultKeyMap
+	return keymap(k)
+}
+
+// FullHelp implements help.KeyMap.
+func (k keymap) FullHelp() [][]key.Binding {
+	return [][]key.Binding{k.ShortHelp()}
+}
+
+// ShortHelp implements help.KeyMap.
+func (k keymap) ShortHelp() []key.Binding {
+	return []key.Binding{
+		key.NewBinding(
+			key.WithKeys("enter"),
+			key.WithHelp("enter", "submit"),
+		),
+	}
+}
+
 type model struct {
 	autoWidth   bool
 	header      string
@@ -26,6 +50,8 @@ type model struct {
 	aborted     bool
 	timeout     time.Duration
 	hasTimeout  bool
+	showHelp    bool
+	help        help.Model
 }
 
 func (m model) Init() tea.Cmd {
@@ -44,7 +70,15 @@ func (m model) View() string {
 		return lipgloss.JoinVertical(lipgloss.Left, header, m.textinput.View())
 	}
 
-	return m.textinput.View()
+	if !m.showHelp {
+		return m.textinput.View()
+	}
+	return lipgloss.JoinVertical(
+		lipgloss.Top,
+		m.textinput.View(),
+		"",
+		m.help.View(defaultKeymap()),
+	)
 }
 
 func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {