Fix int types in OpenSubsonic responses.

Refer to https://support.symfonium.app/t/symfonium-sync-crashes-when-tpos-is-not-an-int/4204

server/subsonic/helpers.go

@@ -7,7 +7,6 @@ import (
 	"mime"
 	"net/http"
 	"sort"
-	"strconv"
 	"strings"
 
 	"github.com/navidrome/navidrome/consts"
@@ -15,6 +14,7 @@ import (
 	"github.com/navidrome/navidrome/model/request"
 	"github.com/navidrome/navidrome/server/public"
 	"github.com/navidrome/navidrome/server/subsonic/responses"
+	"github.com/navidrome/navidrome/utils/number"
 )
 
 func newResponse() *responses.Subsonic {
@@ -254,12 +254,12 @@ func toItemDate(date string) responses.ItemDate {
 	}
 	parts := strings.Split(date, "-")
 	if len(parts) > 2 {
-		itemDate.Day, _ = strconv.Atoi(parts[2])
+		itemDate.Day = number.ParseInt[int32](parts[2])
 	}
 	if len(parts) > 1 {
-		itemDate.Month, _ = strconv.Atoi(parts[1])
+		itemDate.Month = number.ParseInt[int32](parts[1])
 	}
-	itemDate.Year, _ = strconv.Atoi(parts[0])
+	itemDate.Year = number.ParseInt[int32](parts[0])
 
 	return itemDate
 }
@@ -278,7 +278,7 @@ func buildDiscSubtitles(_ context.Context, a model.Album) responses.DiscTitles {
 	}
 	discTitles := responses.DiscTitles{}
 	for num, title := range a.Discs {
-		discTitles = append(discTitles, responses.DiscTitle{Disc: num, Title: title})
+		discTitles = append(discTitles, responses.DiscTitle{Disc: int32(num), Title: title})
 	}
 	sort.Slice(discTitles, func(i, j int) bool {
 		return discTitles[i].Disc < discTitles[j].Disc

server/subsonic/responses/responses.go

@@ -502,7 +502,7 @@ type ReplayGain struct {
 }
 
 type DiscTitle struct {
-	Disc  int    `xml:"disc,attr" json:"disc"`
+	Disc  int32  `xml:"disc,attr" json:"disc"`
 	Title string `xml:"title,attr" json:"title"`
 }
 
@@ -523,7 +523,7 @@ func marshalJSONArray[T any](v []T) ([]byte, error) {
 }
 
 type ItemDate struct {
-	Year  int `xml:"year,attr,omitempty" json:"year,omitempty"`
-	Month int `xml:"month,attr,omitempty" json:"month,omitempty"`
-	Day   int `xml:"day,attr,omitempty" json:"day,omitempty"`
+	Year  int32 `xml:"year,attr,omitempty" json:"year,omitempty"`
+	Month int32 `xml:"month,attr,omitempty" json:"month,omitempty"`
+	Day   int32 `xml:"day,attr,omitempty" json:"day,omitempty"`
 }