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path: root/commands/user/user.go
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package usercmd

import (
	"encoding/json"
	"fmt"

	"github.com/spf13/cobra"

	json2 "github.com/MichaelMure/git-bug/commands/cmdjson"

	"github.com/MichaelMure/git-bug/cache"
	"github.com/MichaelMure/git-bug/commands/completion"
	"github.com/MichaelMure/git-bug/commands/execenv"
	"github.com/MichaelMure/git-bug/util/colors"
)

type userOptions struct {
	format string
}

func NewUserCommand() *cobra.Command {
	env := execenv.NewEnv()
	options := userOptions{}

	cmd := &cobra.Command{
		Use:     "user",
		Short:   "List identities",
		PreRunE: execenv.LoadBackend(env),
		RunE: execenv.CloseBackend(env, func(cmd *cobra.Command, args []string) error {
			return runUser(env, options)
		}),
	}

	cmd.AddCommand(newUserNewCommand())
	cmd.AddCommand(newUserShowCommand())
	cmd.AddCommand(newUserAdoptCommand())

	flags := cmd.Flags()
	flags.SortFlags = false

	flags.StringVarP(&options.format, "format", "f", "default",
		"Select the output formatting style. Valid values are [default,json]")
	cmd.RegisterFlagCompletionFunc("format", completion.From([]string{"default", "json"}))

	return cmd
}

func runUser(env *execenv.Env, opts userOptions) error {
	ids := env.Backend.Identities().AllIds()
	var users []*cache.IdentityExcerpt
	for _, id := range ids {
		user, err := env.Backend.Identities().ResolveExcerpt(id)
		if err != nil {
			return err
		}
		users = append(users, user)
	}

	switch opts.format {
	case "json":
		return userJsonFormatter(env, users)
	case "default":
		return userDefaultFormatter(env, users)
	default:
		return fmt.Errorf("unknown format %s", opts.format)
	}
}

func userDefaultFormatter(env *execenv.Env, users []*cache.IdentityExcerpt) error {
	for _, user := range users {
		env.Out.Printf("%s %s\n",
			colors.Cyan(user.Id().Human()),
			user.DisplayName(),
		)
	}

	return nil
}

func userJsonFormatter(env *execenv.Env, users []*cache.IdentityExcerpt) error {
	jsonUsers := make([]json2.Identity, len(users))
	for i, user := range users {
		jsonUsers[i] = json2.NewIdentityFromExcerpt(user)
	}

	jsonObject, _ := json.MarshalIndent(jsonUsers, "", "    ")
	env.Out.Printf("%s\n", jsonObject)
	return nil
}