Add password generation UI profile workflow

passwords/generator.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"math/big"
+	"slices"
 	"strings"
 )
 
@@ -16,6 +17,7 @@ const (
 )
 
 var ErrImpossibleProfile = errors.New("impossible password profile")
+var ErrUnknownProfile = errors.New("unknown password profile")
 
 type Profile struct {
 	Name           string
@@ -61,6 +63,31 @@ func DefaultProfiles() map[string]Profile {
 	}
 }
 
+func DefaultProfileNames() []string {
+	return ProfileNames(DefaultProfiles())
+}
+
+func LookupProfile(name string, profiles map[string]Profile) (Profile, error) {
+	profile, ok := profiles[strings.TrimSpace(name)]
+	if !ok {
+		return Profile{}, fmt.Errorf("%w %q", ErrUnknownProfile, strings.TrimSpace(name))
+	}
+	return profile, nil
+}
+
+func LookupDefaultProfile(name string) (Profile, error) {
+	return LookupProfile(name, DefaultProfiles())
+}
+
+func ProfileNames(profiles map[string]Profile) []string {
+	names := make([]string, 0, len(profiles))
+	for name := range profiles {
+		names = append(names, name)
+	}
+	slices.Sort(names)
+	return names
+}
+
 func Generate(profile Profile) (string, error) {
 	if err := validateProfile(profile); err != nil {
 		return "", err