use consistent case for indexes

server/handler/handler_sub_by_folder.go

@@ -23,14 +23,14 @@ func (c *Controller) GetIndexes(w http.ResponseWriter, r *http.Request) {
 	c.DB.
 		Where("parent_id = 1").
 		Find(&folders)
-	indexMap := make(map[rune]*subsonic.Index)
+	indexMap := make(map[string]*subsonic.Index)
 	indexes := []*subsonic.Index{}
 	for _, folder := range folders {
-		i := indexOf(folder.RightPath)
+		i := indexOf(folder.RightPath[0])
 		index, ok := indexMap[i]
 		if !ok {
 			index = &subsonic.Index{
-				Name:    string(i),
+				Name:    i,
 				Artists: []*subsonic.Artist{},
 			}
 			indexMap[i] = index

server/handler/handler_sub_by_tags.go

@@ -15,14 +15,14 @@ import (
 func (c *Controller) GetArtists(w http.ResponseWriter, r *http.Request) {
 	var artists []*model.Artist
 	c.DB.Find(&artists)
-	indexMap := make(map[rune]*subsonic.Index)
+	indexMap := make(map[string]*subsonic.Index)
 	indexes := &subsonic.Artists{}
 	for _, artist := range artists {
-		i := indexOf(artist.Name)
+		i := indexOf(artist.Name[0])
 		index, ok := indexMap[i]
 		if !ok {
 			index = &subsonic.Index{
-				Name:    string(i),
+				Name:    i,
 				Artists: []*subsonic.Artist{},
 			}
 			indexMap[i] = index

server/handler/handler_sub_common.go

@@ -5,6 +5,7 @@ import (
 	"net/http"
 	"os"
 	"path"
+	"strings"
 	"sync/atomic"
 	"time"
 	"unicode"
@@ -18,13 +19,13 @@ import (
 	"github.com/sentriz/gonic/server/subsonic"
 )
 
-func indexOf(s string) rune {
-	first := string(s[0])
-	c := rune(unidecode.Unidecode(first)[0])
-	if !unicode.IsLetter(c) {
-		return '#'
+func indexOf(in byte) string {
+	lower := strings.ToLower(string(in))
+	decode := unidecode.Unidecode(lower)
+	if !unicode.IsLetter(rune(decode[0])) {
+		return "#"
 	}
-	return c
+	return decode
 }
 
 func (c *Controller) Stream(w http.ResponseWriter, r *http.Request) {

server/handler/test_data/test_get_artists_no_args

@@ -14,7 +14,7 @@
           ]
         },
         {
-          "name": "A",
+          "name": "a",
           "artist": [
             {
               "id": 1,

server/handler/test_data/test_get_indexes_no_args

@@ -19,7 +19,7 @@
           ]
         },
         {
-          "name": "A",
+          "name": "a",
           "artist": [
             {
               "id": 2,