1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
package main
import (
"errors"
"fmt"
"log"
"strconv"
"github.com/charmbracelet/huh"
)
func main() {
var value string
defaultValue := 10
var chosen int
f := huh.NewForm(
huh.NewGroup(
huh.NewInput().
Value(&value).
Title("Max").
Placeholder(strconv.Itoa(defaultValue)).
Validate(func(s string) error {
v, err := strconv.Atoi(value)
if err != nil {
return err
}
if v <= 0 {
return errors.New("maximum must be positive")
}
return nil
}).
Description("Select a maximum"),
huh.NewSelect[int]().
Value(&chosen).
Title("Pick a number").
DescriptionFunc(func() string {
v, err := strconv.Atoi(value)
if err != nil || v <= 0 {
v = defaultValue
}
return "Between 1 and " + strconv.Itoa(v)
}, &value).
OptionsFunc(func() []huh.Option[int] {
var options []huh.Option[int]
v, err := strconv.Atoi(value)
if err != nil {
v = defaultValue
}
for i := range v {
options = append(options, huh.NewOption(strconv.Itoa(i+1), i+1))
}
return options
}, &value),
),
)
err := f.Run()
if err != nil {
log.Fatal(err)
}
fmt.Println(chosen)
}
|
