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configure.go
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configure.go
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package configurator
import (
"errors"
"fmt"
"github.com/AlecAivazis/survey/v2"
"github.com/AlecAivazis/survey/v2/terminal"
"github.com/google/uuid"
"github.com/nhatthm/n26cli/internal/service"
)
// Configure runs the configuration prompt.
func (c *PromptConfigurator) Configure() (err error) {
cfg, err := c.SafeRead()
if err != nil {
return err
}
defer func() {
if err == nil {
_, _ = fmt.Fprintf(c.stdout, "\nsaved\n")
return
}
if errors.Is(err, terminal.InterruptErr) {
err = nil
_, _ = fmt.Fprintf(c.stdout, "\nno change\n")
return
}
}()
oldCfg := cfg
oldCfg.N26.Device = cfg.N26.Device
// We do not do this in Read() on purpose, we only load sensitive information on demand.
if oldCfg.N26.Device != emptyUUID && oldCfg.N26.CredentialsProvider == service.CredentialsProviderKeychain {
cred := c.getCredentialsProvider(oldCfg.N26.Device)
// Preload to change it later.
cfg.N26.Username = cred.Username()
cfg.N26.Password = cred.Password()
oldCfg.N26.Username = cfg.N26.Username
oldCfg.N26.Password = cfg.N26.Password
}
if err = c.configureDeviceID(&oldCfg.N26.Device, &cfg.N26); err != nil {
return err
}
if err = c.configureCredentials(&cfg.N26); err != nil {
return err
}
if err = c.Clean(oldCfg, cfg); err != nil {
return err
}
return c.Write(cfg)
}
func (c *PromptConfigurator) configureDeviceID(oldDeviceID *uuid.UUID, current *service.N26Config) error {
if current.Device == emptyUUID {
current.Device = uuid.New()
*oldDeviceID = current.Device
return nil
}
// Ask to change device id.
return c.askGenerateDeviceID(¤t.Device)
}
func (c *PromptConfigurator) askGenerateDeviceID(current *uuid.UUID) error {
var regenerate bool
err := survey.AskOne(&survey.Confirm{Message: "Do you want to generate a new device id?"}, ®enerate, c.defaultOptions...)
if regenerate {
*current = uuid.New()
}
return err
}
func (c *PromptConfigurator) configureCredentials(current *service.N26Config) error {
if err := c.askCredentialsProvider(¤t.CredentialsProvider); err != nil {
return err
}
// Ask to use keychain.
if current.CredentialsProvider == service.CredentialsProviderKeychain {
// Ask to set username and password.
if err := c.askCredentials(¤t.Username, ¤t.Password); err != nil {
return err
}
}
return nil
}
func (c *PromptConfigurator) askCredentialsProvider(current *service.CredentialsProviderType) error {
use := *current == service.CredentialsProviderKeychain
q := &survey.Confirm{
Message: "Do you want to save your credentials to system keychain?",
Default: use,
}
err := survey.AskOne(q, &use, c.defaultOptions...)
if use {
*current = service.CredentialsProviderKeychain
} else {
*current = service.CredentialsProviderNone
}
return err
}
func (c *PromptConfigurator) askCredentials(username, password *string) error {
answer := map[string]interface{}{}
questions := []*survey.Question{
{
Name: "username",
Prompt: &survey.Password{
Message: "Enter username (input is hidden, leave it empty if no change) >",
},
},
{
Name: "password",
Prompt: &survey.Password{
Message: "Enter password (input is hidden, leave it empty if no change) >",
},
},
}
if err := survey.Ask(questions, &answer, c.defaultOptions...); err != nil {
return err
}
if answer["username"] != "" {
*username = answer["username"].(string) //nolint: errcheck
}
if answer["password"] != "" {
*password = answer["password"].(string) //nolint: errcheck
}
return nil
}