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|
package main
import (
"fmt"
"net/http"
"os"
"time"
tea "github.com/charmbracelet/bubbletea"
)
const url = "https://charm.sh/"
type model struct {
status int
err error
}
func checkServer() tea.Msg {
c := &http.Client{Timeout: 10 * time.Second}
res, err := c.Get(url)
if err != nil {
return errMsg{err}
}
defer res.Body.Close() // nolint:errcheck
return statusMsg(res.StatusCode)
}
type statusMsg int
type errMsg struct{ err error }
// For messages that contain errors it's often handy to also implement the
// error interface on the message.
func (e errMsg) Error() string { return e.err.Error() }
func (m model) Init() tea.Cmd {
return checkServer
}
func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case statusMsg:
m.status = int(msg)
return m, tea.Quit
case errMsg:
m.err = msg
return m, tea.Quit
case tea.KeyMsg:
if msg.Type == tea.KeyCtrlC {
return m, tea.Quit
}
}
return m, nil
}
func (m model) View() string {
if m.err != nil {
return fmt.Sprintf("\nWe had some trouble: %v\n\n", m.err)
}
s := fmt.Sprintf("Checking %s ... ", url)
if m.status > 0 {
s += fmt.Sprintf("%d %s!", m.status, http.StatusText(m.status))
}
return "\n" + s + "\n\n"
}
func main() {
if _, err := tea.NewProgram(model{}).Run(); err != nil {
fmt.Printf("Uh oh, there was an error: %v\n", err)
os.Exit(1)
}
}
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