town/cmd/welcome/main.go

170 lines
3.4 KiB
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package main
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import (
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"errors"
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"fmt"
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"net/mail"
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"os"
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"regexp"
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"strings"
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"git.tilde.town/tildetown/town/invites"
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"git.tilde.town/tildetown/town/stats"
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"github.com/AlecAivazis/survey/v2"
"github.com/charmbracelet/lipgloss"
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_ "embed"
)
//go:embed welcome.txt
var welcomeArt string
// TODO move magic key machine to static page
type newUserData struct {
Username string
DisplayName string
Email string
PubKey string
}
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func surveyIconSet(icons *survey.IconSet) {
icons.Question.Text = "~"
icons.Question.Format = "magenta:b"
}
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func promptCode() (code string, err error) {
codePrompt := &survey.Input{
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Message: "invite code?",
}
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err = survey.AskOne(codePrompt, &code,
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survey.WithValidator(survey.Required),
survey.WithIcons(surveyIconSet))
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code = strings.TrimSpace(code)
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return
}
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func promptUsername(townData stats.TildeData) (un string, err error) {
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usernameRE := regexp.MustCompile(`^[a-z][-a-z0-9_]*$`)
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unPrompt := &survey.Input{
Message: "desired username?",
}
err = survey.AskOne(unPrompt, &un,
survey.WithValidator(survey.Required),
survey.WithIcons(surveyIconSet),
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survey.WithValidator(func(val interface{}) error {
un := val.(string)
if len(un) > 32 {
return fmt.Errorf("username '%s' is too long", un)
}
return nil
}),
survey.WithValidator(func(val interface{}) error {
un := val.(string)
if !usernameRE.MatchString(un) {
return errors.New("usernames must start with a letter and only contain letters, nubers, - or _")
}
return nil
}),
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survey.WithValidator(func(val interface{}) error {
un := val.(string)
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for _, v := range townData.Users {
if v.Username == un {
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return fmt.Errorf("username '%s' is already in use", un)
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}
}
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return nil
}))
return "", nil
}
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func promptEmail(defaultEmail string) (email string, err error) {
emailPrompt := &survey.Input{
Message: "e-mail (for account recovery only)?",
Default: defaultEmail,
}
err = survey.AskOne(emailPrompt, &email,
survey.WithValidator(survey.Required),
survey.WithIcons(surveyIconSet),
survey.WithValidator(func(val interface{}) error {
email := val.(string)
_, err := mail.ParseAddress(email)
if err != nil {
return fmt.Errorf("could not understand that email: %w", err)
}
return nil
}))
return "", nil
}
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func _main() error {
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townData, err := stats.Stats()
if err != nil {
return err
}
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inviteDB, err := invites.ConnectDB()
if err != nil {
return err
}
data := &newUserData{}
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s := lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{
Light: "#7D19BD",
Dark: "#E0B0FF",
})
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s = s.SetString(welcomeArt)
fmt.Println(s)
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code, err := promptCode()
if err != nil {
return err
}
invite, err := invites.Get(inviteDB, code)
if err != nil {
return fmt.Errorf("could not look up invite code: %w", err)
}
if invite.Used {
return errors.New("that invite code has already been used.")
}
s = s.SetString("thanks!! just gotta collect some information now and then your account will be ready.")
fmt.Println(s)
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data.Username, err = promptUsername(townData)
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if err != nil {
return err
}
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data.Email, err = promptEmail(invite.Email)
if err != nil {
return err
}
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// TODO collect public key
// TODO have enough to make account; can now do that
// TODO assuming account creation succeeded, mark invite as used
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return nil
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}
func main() {
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// TODO friendlier error handling
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err := _main()
if err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}