refactor: make cli modular (#390)

* refactor: make cli modular

* chore: apply suggestion from @Rycochet

Co-authored-by: Ryc O'Chet <Rycochet@users.noreply.github.com>

* chore: apply review suggestions

* refactor: no need to handle user escaping in verify cmd

---------

Co-authored-by: Ryc O'Chet <Rycochet@users.noreply.github.com>

cmd/create.go

@@ -0,0 +1,99 @@
+package cmd
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+
+	"github.com/charmbracelet/huh"
+	"github.com/rs/zerolog"
+	"github.com/rs/zerolog/log"
+	"github.com/spf13/cobra"
+	"golang.org/x/crypto/bcrypt"
+)
+
+type createUserCmd struct {
+	root *cobra.Command
+	cmd  *cobra.Command
+
+	interactive bool
+	docker      bool
+	username    string
+	password    string
+}
+
+func newCreateUserCmd(root *cobra.Command) *createUserCmd {
+	return &createUserCmd{
+		root: root,
+	}
+}
+
+func (c *createUserCmd) Register() {
+	c.cmd = &cobra.Command{
+		Use:   "create",
+		Short: "Create a user",
+		Long:  `Create a user either interactively or by passing flags.`,
+		Run:   c.run,
+	}
+
+	c.cmd.Flags().BoolVarP(&c.interactive, "interactive", "i", false, "Create a user interactively")
+	c.cmd.Flags().BoolVar(&c.docker, "docker", false, "Format output for docker")
+	c.cmd.Flags().StringVar(&c.username, "username", "", "Username")
+	c.cmd.Flags().StringVar(&c.password, "password", "", "Password")
+
+	if c.root != nil {
+		c.root.AddCommand(c.cmd)
+	}
+}
+
+func (c *createUserCmd) GetCmd() *cobra.Command {
+	return c.cmd
+}
+
+func (c *createUserCmd) run(cmd *cobra.Command, args []string) {
+	log.Logger = log.Level(zerolog.InfoLevel)
+
+	if c.interactive {
+		form := huh.NewForm(
+			huh.NewGroup(
+				huh.NewInput().Title("Username").Value(&c.username).Validate((func(s string) error {
+					if s == "" {
+						return errors.New("username cannot be empty")
+					}
+					return nil
+				})),
+				huh.NewInput().Title("Password").Value(&c.password).Validate((func(s string) error {
+					if s == "" {
+						return errors.New("password cannot be empty")
+					}
+					return nil
+				})),
+				huh.NewSelect[bool]().Title("Format the output for Docker?").Options(huh.NewOption("Yes", true), huh.NewOption("No", false)).Value(&c.docker),
+			),
+		)
+		var baseTheme *huh.Theme = huh.ThemeBase()
+		err := form.WithTheme(baseTheme).Run()
+		if err != nil {
+			log.Fatal().Err(err).Msg("Form failed")
+		}
+	}
+
+	if c.username == "" || c.password == "" {
+		log.Fatal().Err(errors.New("error invalid input")).Msg("Username and password cannot be empty")
+	}
+
+	log.Info().Str("username", c.username).Msg("Creating user")
+
+	passwd, err := bcrypt.GenerateFromPassword([]byte(c.password), bcrypt.DefaultCost)
+	if err != nil {
+		log.Fatal().Err(err).Msg("Failed to hash password")
+	}
+
+	// If docker format is enabled, escape the dollar sign
+	passwdStr := string(passwd)
+	if c.docker {
+		passwdStr = strings.ReplaceAll(passwdStr, "$", "$$")
+	}
+
+	log.Info().Str("user", fmt.Sprintf("%s:%s", c.username, passwdStr)).Msg("User created")
+}