Files
dbbackup/internal/tui/input.go

161 lines
3.3 KiB
Go

package tui
import (
"fmt"
"strconv"
"strings"
tea "github.com/charmbracelet/bubbletea"
"dbbackup/internal/config"
"dbbackup/internal/logger"
)
// InputModel for getting user input
type InputModel struct {
config *config.Config
logger logger.Logger
parent tea.Model
title string
prompt string
value string
cursor int
done bool
err error
validate func(string) error
}
func NewInputModel(cfg *config.Config, log logger.Logger, parent tea.Model, title, prompt, defaultValue string, validate func(string) error) InputModel {
return InputModel{
config: cfg,
logger: log,
parent: parent,
title: title,
prompt: prompt,
value: defaultValue,
validate: validate,
cursor: len(defaultValue),
}
}
func (m InputModel) Init() tea.Cmd {
return nil
}
func (m InputModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case tea.KeyMsg:
switch msg.String() {
case "ctrl+c", "esc":
// Return to grandparent (menu) not immediate parent (selector)
if selector, ok := m.parent.(DatabaseSelectorModel); ok {
return selector.parent, nil
}
return m.parent, nil
case "enter":
if m.validate != nil {
if err := m.validate(m.value); err != nil {
m.err = err
return m, nil
}
}
m.done = true
// If this is from database selector, execute backup with ratio
if selector, ok := m.parent.(DatabaseSelectorModel); ok {
ratio, _ := strconv.Atoi(m.value)
executor := NewBackupExecution(selector.config, selector.logger, selector.parent,
selector.backupType, selector.selected, ratio)
return executor, executor.Init()
}
return m, nil
case "backspace":
if len(m.value) > 0 && m.cursor > 0 {
m.value = m.value[:m.cursor-1] + m.value[m.cursor:]
m.cursor--
}
case "left":
if m.cursor > 0 {
m.cursor--
}
case "right":
if m.cursor < len(m.value) {
m.cursor++
}
default:
// Add character
if len(msg.String()) == 1 {
m.value = m.value[:m.cursor] + msg.String() + m.value[m.cursor:]
m.cursor++
m.err = nil
}
}
}
return m, nil
}
func (m InputModel) View() string {
var s strings.Builder
header := titleStyle.Render(m.title)
s.WriteString(fmt.Sprintf("\n%s\n\n", header))
s.WriteString(fmt.Sprintf("%s\n\n", m.prompt))
// Show input with cursor
before := m.value[:m.cursor]
after := ""
if m.cursor < len(m.value) {
after = m.value[m.cursor:]
}
s.WriteString(inputStyle.Render(fmt.Sprintf("> %s▎%s", before, after)))
s.WriteString("\n\n")
if m.err != nil {
s.WriteString(errorStyle.Render(fmt.Sprintf("❌ Error: %v\n\n", m.err)))
}
s.WriteString("⌨️ Type value • Enter: Confirm • ESC: Cancel\n")
return s.String()
}
func (m InputModel) GetValue() string {
return m.value
}
func (m InputModel) GetIntValue() (int, error) {
return strconv.Atoi(m.value)
}
func (m InputModel) IsDone() bool {
return m.done
}
// Validation functions
func ValidateInt(min, max int) func(string) error {
return func(s string) error {
val, err := strconv.Atoi(s)
if err != nil {
return fmt.Errorf("must be a number")
}
if val < min || val > max {
return fmt.Errorf("must be between %d and %d", min, max)
}
return nil
}
}
func ValidateNotEmpty(s string) error {
if strings.TrimSpace(s) == "" {
return fmt.Errorf("value cannot be empty")
}
return nil
}