forked from Mirrors/bubbletea
ade8203c21
It was a valiant effort, and the implementation was solid and dependable, but at the end of the day we can achieve the same functionality in a much simpler fashion with commands, especially because Go is not held to the same restrictions as Elm.
90 lines
1.5 KiB
Go
90 lines
1.5 KiB
Go
package main
|
|
|
|
// A simple program that counts down from 5 and then exits.
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"log"
|
|
"net/http"
|
|
"time"
|
|
|
|
"github.com/charmbracelet/boba"
|
|
)
|
|
|
|
const url = "https://charm.sh/"
|
|
|
|
type Model struct {
|
|
status int
|
|
err error
|
|
}
|
|
|
|
type statusMsg int
|
|
type errMsg error
|
|
|
|
func main() {
|
|
p := boba.NewProgram(initialize, update, view)
|
|
if err := p.Start(); err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
}
|
|
|
|
func initialize() (boba.Model, boba.Cmd) {
|
|
return Model{0, nil}, checkServer
|
|
}
|
|
|
|
func update(msg boba.Msg, model boba.Model) (boba.Model, boba.Cmd) {
|
|
m, ok := model.(Model)
|
|
if !ok {
|
|
return Model{err: errors.New("could not perform assertion on model during update")}, nil
|
|
}
|
|
|
|
switch msg := msg.(type) {
|
|
|
|
case boba.KeyMsg:
|
|
switch msg.String() {
|
|
case "esc":
|
|
fallthrough
|
|
case "ctrl+c":
|
|
fallthrough
|
|
case "q":
|
|
return m, boba.Quit
|
|
default:
|
|
return m, nil
|
|
}
|
|
|
|
case statusMsg:
|
|
m.status = int(msg)
|
|
return m, boba.Quit
|
|
|
|
case errMsg:
|
|
m.err = msg
|
|
return m, nil
|
|
|
|
default:
|
|
return m, nil
|
|
}
|
|
}
|
|
|
|
func view(model boba.Model) string {
|
|
m, _ := model.(Model)
|
|
s := fmt.Sprintf("Checking %s...", url)
|
|
if m.err != nil {
|
|
s += fmt.Sprintf("something went wrong: %s", m.err)
|
|
} else if m.status != 0 {
|
|
s += fmt.Sprintf("%d %s", m.status, http.StatusText(m.status))
|
|
}
|
|
return s + "\n"
|
|
}
|
|
|
|
func checkServer() boba.Msg {
|
|
c := &http.Client{
|
|
Timeout: 10 * time.Second,
|
|
}
|
|
res, err := c.Get(url)
|
|
if err != nil {
|
|
return errMsg(err)
|
|
}
|
|
return statusMsg(res.StatusCode)
|
|
}
|