split play profile model helpers

internal/service/play_profile_model.go

@@ -0,0 +1,68 @@
+package service
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	"github.com/ShukeBta/MediaStationGo/internal/model"
+)
+
+// PlayProfileInput is the create/update payload accepted by the API.
+// PIN is hashed only when non-empty so omitting it preserves the existing PIN on update.
+type PlayProfileInput struct {
+	UserID                string   `json:"user_id"`
+	Name                  string   `json:"name"`
+	IsDefault             bool     `json:"is_default"`
+	ContentRatingLimit    string   `json:"content_rating_limit"`
+	AllowAdult            bool     `json:"allow_adult"`
+	RequirePIN            bool     `json:"require_pin"`
+	PIN                   string   `json:"pin,omitempty"`
+	PreferredSubtitleLang string   `json:"preferred_subtitle_lang"`
+	PreferredAudioLang    string   `json:"preferred_audio_lang"`
+	AutoplayNext          bool     `json:"autoplay_next"`
+	SkipIntro             bool     `json:"skip_intro"`
+	AllowedLibraryIDs     []string `json:"allowed_library_ids"`
+}
+
+// ProfileView is the public shape for React forms.
+type ProfileView struct {
+	model.PlayProfile
+	AllowedLibraryIDs []string `json:"allowed_library_ids"`
+}
+
+func toProfileView(p model.PlayProfile) ProfileView {
+	v := ProfileView{PlayProfile: p}
+	if p.AllowedLibraryIDs != "" {
+		_ = json.Unmarshal([]byte(p.AllowedLibraryIDs), &v.AllowedLibraryIDs)
+	}
+	if v.AllowedLibraryIDs == nil {
+		v.AllowedLibraryIDs = []string{}
+	}
+	return v
+}
+
+func validateProfileInput(in PlayProfileInput, requireUser bool) error {
+	if strings.TrimSpace(in.Name) == "" {
+		return fmt.Errorf("%w: name required", ErrPlayProfileValidation)
+	}
+	if requireUser && strings.TrimSpace(in.UserID) == "" {
+		return fmt.Errorf("%w: user_id required", ErrPlayProfileValidation)
+	}
+	if requireUser && in.RequirePIN && strings.TrimSpace(in.PIN) == "" {
+		return fmt.Errorf("%w: pin required", ErrPlayProfileValidation)
+	}
+	if in.RequirePIN && in.PIN != "" {
+		if len(in.PIN) < 4 || len(in.PIN) > 8 {
+			return fmt.Errorf("%w: pin must be 4-8 characters", ErrPlayProfileValidation)
+		}
+	}
+	return nil
+}
+
+func hashPIN(pin string) string {
+	sum := sha256.Sum256([]byte(pin))
+	return hex.EncodeToString(sum[:])
+}