town/cmd/help/main.go

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package main
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import (
"fmt"
"os"
"strconv"
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"github.com/charmbracelet/lipgloss"
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"github.com/mattn/go-tty"
)
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// TODO consider local-only help command for renaming and adding emails to account
type colorScheme struct {
Header func(string) string
Subtitle func(string) string
Prompt func(string) string
Email func(string) string
Option func(string) string
}
func newColorScheme() colorScheme {
s2r := func(s lipgloss.Style) func(string) string {
return s.Render
}
c := func(s string) lipgloss.Color {
return lipgloss.Color(s)
}
s := lipgloss.NewStyle
return colorScheme{
Header: s2r(s().Bold(true).Foreground(c("#E0B0FF"))),
Subtitle: s2r(s().Italic(true).Foreground(c("gray"))),
Email: s2r(s().Bold(true).Underline(true)),
Prompt: s2r(s().Bold(true).Foreground(c("#00752d"))),
Option: s2r(s().Bold(true).Foreground(c("#38747a"))),
}
}
func stringPrompt(cs colorScheme, tty *tty.TTY, prompt string) (string, error) {
fmt.Println("")
fmt.Println(cs.Prompt(prompt))
fmt.Println(cs.Subtitle("(type your answer below and press enter to submit)"))
s, err := tty.ReadString()
if err != nil {
return "", fmt.Errorf("couldn't collect input: %w", err)
}
return s, nil
}
func numberPrompt(cs colorScheme, tty *tty.TTY, prompt string, opts []string) (int, error) {
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fmt.Println()
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fmt.Println(cs.Prompt(prompt))
fmt.Println(cs.Subtitle("(pick an option using the corresponding number)"))
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chosen := -1
for chosen < 0 {
fmt.Println()
for ix, o := range opts {
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fmt.Printf("%s: %s\n", cs.Option(fmt.Sprintf("%d", ix+1)), o)
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}
r, err := tty.ReadRune()
if err != nil {
return -1, fmt.Errorf("could not collect answer for '%s': %w", prompt, err)
}
c, err := strconv.Atoi(string(r))
if err != nil {
fmt.Println()
fmt.Printf("I could not understand '%s'. Try again, please.\n", string(r))
continue
}
if c > len(opts) || c == 0 {
fmt.Println()
fmt.Printf("%s is not an option. Try again, please.\n", string(r))
continue
}
chosen = c - 1
}
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fmt.Println("")
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return chosen, nil
}
func _main() error {
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cs := newColorScheme()
fmt.Println(cs.Header("Hi, you have reached the tilde town help desk."))
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fmt.Println()
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fmt.Println("Please check out the options below.")
fmt.Printf("If none of them apply to your case, you can email %s. \n", cs.Email("root@tilde.town"))
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tty, err := tty.Open()
if err != nil {
return fmt.Errorf("could not open tty: %w", err)
}
defer tty.Close()
options := []string{
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"I need to request that a new SSH key be added to my account.",
"I have a code from my e-mail to redeem for a new SSH key",
"I just want out of here",
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}
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c, err := numberPrompt(cs, tty, "What do you need help with?", options)
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switch c {
case 0:
return collectEmail(cs, tty)
case 1:
return redeemCode(tty)
case 2:
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fmt.Println()
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fmt.Println(cs.Header("bye~"))
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return nil
}
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return nil
}
func collectEmail(cs colorScheme, tty *tty.TTY) error {
fmt.Println(cs.Header("We can send a reset code to an email associated with your town account."))
email, err := stringPrompt(cs, tty, "email to send reset code to?")
if err != nil {
return err
}
fmt.Println(email)
// TODO confirm email
// TODO generate reset code
// TODO send email
// TODO report success
return nil
}
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func redeemCode(tty *tty.TTY) error {
// TODO deserialize
// TODO verify code
// TODO accept key
// TODO verify key
// TODO add key to .authorized_keys2
// TODO mark used
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return nil
}
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func main() {
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err := _main()
if err != nil {
fmt.Printf("sorry, something went wrong: %s\n", err.Error())
fmt.Println("Please let an admin know by emailing a copy of this error to root@tilde.town")
os.Exit(1)
}
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}