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complex.go
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complex.go
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package tele_prompt
import (
"context"
"net/url"
"regexp"
"strconv"
)
func (m *Manager) OneOf(ctx context.Context, userId int64, options []string) (string, error) {
txt, err := m.TextField(ctx, userId)
if err != nil {
return "", err
}
return oneOf(txt, options)
}
func oneOf(txt string, options []string) (string, error) {
if !in(txt, options) {
return "", ErrValidationFailed
}
return txt, nil
}
func in[T comparable](item T, arr []T) bool {
for _, t := range arr {
if t == item {
return true
}
}
return false
}
func (m *Manager) Range(ctx context.Context, userId int64, min, max int) (int, error) {
txt, err := m.TextField(ctx, userId)
if err != nil {
return 0, err
}
return inRange(txt, min, max)
}
func inRange(txt string, min, max int) (int, error) {
num, err := strconv.Atoi(txt)
if err != nil {
return 0, ErrValidationFailed
}
if num < min || num > max {
return 0, ErrOutofRange
}
return num, nil
}
// Url prompts the user for a URL and validates it.
func (m *Manager) Url(ctx context.Context, userId int64) (string, error) {
txt, err := m.TextField(ctx, userId)
if err != nil {
return "", err
}
return validateUrl(txt)
}
func validateUrl(txt string) (string, error) {
_, err := url.ParseRequestURI(txt)
if err != nil {
return "", ErrValidationFailed
}
return txt, nil
}
// Email prompts the user for an email and validates it.
func (m *Manager) Email(ctx context.Context, userId int64) (string, error) {
txt, err := m.TextField(ctx, userId)
if err != nil {
return "", err
}
return validateEmail(txt)
}
var emailRegex = regexp.MustCompile(`^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$`)
func validateEmail(txt string) (string, error) {
// Using regex to match common email format
if !emailRegex.MatchString(txt) {
return "", ErrValidationFailed
}
return txt, nil
}