fix(team): name the team in delete prompts and protect the owner team

team delete confirmed with "delete team 3 on <host>" and deleted
whatever the ID pointed at, including an organization's owner team.
It now looks the team up first and asks to delete team "devs" (ID 5)
from acme. Deleting an owner team requires --force and, interactively,
typing the team's org/name.

Signed-off-by: bircni <bircni@icloud.com>

internal/app/teams.go

@@ -5,6 +5,7 @@ package app
 
 import (
 	"errors"
+	"fmt"
 	"strconv"
 	"strings"
 
@@ -34,7 +35,7 @@ func (a *application) teamCommand() *cobra.Command {
 	group.AddCommand(list)
 	for _, verb := range []string{"view", "create", "edit", "delete"} {
 		var name, description, permission string
-		var createRepo, allRepos bool
+		var createRepo, allRepos, force bool
 		var units map[string]string
 		command := &cobra.Command{Use: verb + " <id>", Short: titleCase(verb) + " an organization team", Args: argsExact(1)}
 		switch verb {
@@ -42,6 +43,7 @@ func (a *application) teamCommand() *cobra.Command {
 			command.Use = "create <org>"
 		case "delete":
 			command.Annotations = textOutput("team deletion does not return a resource")
+			command.Flags().BoolVar(&force, "force", false, "Allow deleting the organization's owner team")
 		}
 		if verb == "create" || verb == "edit" {
 			command.Flags().StringVar(&name, "name", "", "Team name")
@@ -120,12 +122,8 @@ func (a *application) teamCommand() *cobra.Command {
 				return err
 			}
 			service := services.Teams{Client: target.client}
-			if verb == "delete" || prompted {
-				subject := args[0]
-				if verb == "create" {
-					subject = name + " in " + args[0]
-				}
-				if err := a.confirm(cmd, verb+" team "+subject+" on "+target.Host); err != nil {
+			if prompted {
+				if err := a.confirm(cmd, "create team "+name+" in "+args[0]+" on "+target.Host); err != nil {
 					return err
 				}
 			}
@@ -138,7 +136,7 @@ func (a *application) teamCommand() *cobra.Command {
 			case "edit":
 				item, err = service.Edit(cmd.Context(), id, opts)
 			case "delete":
-				return service.Delete(cmd.Context(), id)
+				return a.deleteTeam(cmd, service, id, force)
 			}
 			if err != nil {
 				return err
@@ -151,6 +149,31 @@ func (a *application) teamCommand() *cobra.Command {
 	return group
 }
 
+// deleteTeam names the team in its confirmation and deletes an organization's owner team only
+// with --force, after the user types its name.
+func (a *application) deleteTeam(cmd *cobra.Command, service services.Teams, id int64, force bool) error {
+	team, err := service.View(cmd.Context(), id)
+	if err != nil {
+		return err
+	}
+	subject, answer := fmt.Sprintf("team %q (ID %d)", team.Name, team.ID), team.Name
+	if team.Organization != "" {
+		subject += " from " + team.Organization
+		answer = team.Organization + "/" + team.Name
+	}
+	if team.Permission != "owner" {
+		err = a.confirm(cmd, "Delete "+subject+"?")
+	} else if !force {
+		return clierr.Wrap(clierr.Usage, fmt.Errorf("%s is the organization's owner team and its members would lose owner access; pass --force to delete it", subject))
+	} else {
+		err = a.confirmTyped(cmd, "Delete owner "+subject+"? Its members lose owner access.", answer)
+	}
+	if err != nil {
+		return err
+	}
+	return service.Delete(cmd.Context(), id)
+}
+
 func (a *application) teamAccessCommand(repository bool) *cobra.Command {
 	kind := "member"
 	if repository {