Files

88 lines
2.5 KiB
Go

package tui
import (
"os"
"charm.land/huh/v2"
"charm.land/lipgloss/v2"
"golang.org/x/term"
)
// Confirm shows a confirmation prompt with a yellow-styled title.
// If title is empty, it defaults to "Do you want to continue?".
func Confirm(title string) (bool, error) {
if title == "" {
title = "Do you want to continue?"
}
var confirmed bool
form := huh.NewForm(
huh.NewGroup(
huh.NewConfirm().
Title(title).
Affirmative("Yes!").
Negative("No").
Value(&confirmed),
),
).WithTheme(ThemeConfirm()).
WithAccessible(true).
// Render to stderr so stdout stays clean for command output.
WithOutput(os.Stderr)
if err := form.Run(); err != nil {
return false, err
}
return confirmed, nil
}
// ThemeConfirm returns a huh theme with a bold yellow title style for the confirmation prompt.
func ThemeConfirm() huh.Theme {
return huh.ThemeFunc(func(isDark bool) *huh.Styles {
t := huh.ThemeBase(isDark)
t.Focused.Title = t.Focused.Title.Foreground(lipgloss.Yellow).Bold(true)
return t
})
}
// ThemeConfirmDanger returns a huh theme with a bold red title style for dangerous confirmation prompts.
func ThemeConfirmDanger() huh.Theme {
return huh.ThemeFunc(func(isDark bool) *huh.Styles {
t := huh.ThemeBase(isDark)
t.Focused.Title = t.Focused.Title.Foreground(lipgloss.Red).Bold(true)
return t
})
}
// IsTerminalAvailable reports whether the control terminal (TTY) is available so an interactive TUI can run.
func IsTerminalAvailable() bool {
// Bubbletea interactive programs read keyboard input from stdin and render to stdout (default) or stderr (uncloud),
// so both must be terminals. In particular, bubbletea falls back to opening /dev/tty when stdin is not a terminal,
// which fails when there is no controlling terminal. See https://github.com/psviderski/uncloud/issues/386
return IsStdinTerminal() && IsStderrTerminal()
}
// IsStdinTerminal checks if the standard input is a terminal (TTY).
func IsStdinTerminal() bool {
return term.IsTerminal(int(os.Stdin.Fd()))
}
// IsStdoutTerminal checks if the standard output is a terminal (TTY).
func IsStdoutTerminal() bool {
return term.IsTerminal(int(os.Stdout.Fd()))
}
// IsStderrTerminal checks if the standard error is a terminal (TTY).
func IsStderrTerminal() bool {
return term.IsTerminal(int(os.Stderr.Fd()))
}
// TerminalWidth returns the width of the terminal.
// Returns 0 if stdout is not a terminal or the width cannot be determined.
func TerminalWidth() int {
width, _, err := term.GetSize(int(os.Stdout.Fd()))
if err != nil || width <= 0 {
return 0
}
return width
}