feat: folder navigation

app/src/main/java/com/cappielloantonio/play/subsonic/api/browsing/BrowsingClient.java

@@ -24,9 +24,9 @@ public class BrowsingClient {
         return browsingService.getMusicFolders(subsonic.getParams());
     }
 
-    public Call<ApiResponse> getIndexes() {
+    public Call<ApiResponse> getIndexes(String musicFolderId, Long ifModifiedSince) {
         Log.d(TAG, "getIndexes()");
-        return browsingService.getIndexes(subsonic.getParams());
+        return browsingService.getIndexes(subsonic.getParams(), musicFolderId, ifModifiedSince);
     }
 
     public Call<ApiResponse> getMusicDirectory(String id) {

app/src/main/java/com/cappielloantonio/play/subsonic/api/browsing/BrowsingService.java

@@ -15,7 +15,7 @@ public interface BrowsingService {
     Call<ApiResponse> getMusicFolders(@QueryMap Map<String, String> params);
 
     @GET("getIndexes")
-    Call<ApiResponse> getIndexes(@QueryMap Map<String, String> params);
+    Call<ApiResponse> getIndexes(@QueryMap Map<String, String> params, @Query("musicFolderId") String musicFolderId, @Query("ifModifiedSince") Long ifModifiedSince);
 
     @GET("getMusicDirectory")
     Call<ApiResponse> getMusicDirectory(@QueryMap Map<String, String> params, @Query("id") String id);

app/src/main/java/com/cappielloantonio/play/subsonic/models/Artist.kt

@@ -1,8 +1,11 @@
 package com.cappielloantonio.play.subsonic.models
 
-import java.util.*
+import android.os.Parcelable
+import kotlinx.parcelize.Parcelize
+import java.util.Date
 
-class Artist {
+@Parcelize
+class Artist : Parcelable {
     var id: String? = null
     var name: String? = null
     var starred: Date? = null

app/src/main/java/com/cappielloantonio/play/subsonic/models/Directory.kt

@@ -1,10 +1,16 @@
 package com.cappielloantonio.play.subsonic.models
 
-import java.util.*
+import android.os.Parcelable
+import com.google.gson.annotations.SerializedName
+import kotlinx.parcelize.Parcelize
+import java.util.Date
 
-class Directory {
+@Parcelize
+class Directory : Parcelable {
+    @SerializedName("child")
     var children: List<Child>? = null
     var id: String? = null
+    @SerializedName("parent")
     var parentId: String? = null
     var name: String? = null
     var starred: Date? = null

app/src/main/java/com/cappielloantonio/play/subsonic/models/Index.kt

@@ -1,6 +1,9 @@
 package com.cappielloantonio.play.subsonic.models
 
+import com.google.gson.annotations.SerializedName
+
 class Index {
+    @SerializedName("artist")
     var artists: List<Artist>? = null
     var name: String? = null
 }

app/src/main/java/com/cappielloantonio/play/subsonic/models/Indexes.kt

@@ -1,7 +1,10 @@
 package com.cappielloantonio.play.subsonic.models
 
+import com.google.gson.annotations.SerializedName
+
 class Indexes {
     var shortcuts: List<Artist>? = null
+    @SerializedName("index")
     var indices: List<Index>? = null
     var children: List<Child>? = null
     var lastModified: Long = 0

app/src/main/java/com/cappielloantonio/play/subsonic/models/MusicFolder.kt

@@ -1,6 +1,10 @@
 package com.cappielloantonio.play.subsonic.models
 
-class MusicFolder {
-    var id = 0
+import android.os.Parcelable
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+class MusicFolder : Parcelable {
+    var id: String? = null
     var name: String? = null
 }

app/src/main/java/com/cappielloantonio/play/subsonic/models/MusicFolders.kt

@@ -1,5 +1,8 @@
 package com.cappielloantonio.play.subsonic.models
 
+import com.google.gson.annotations.SerializedName
+
 class MusicFolders {
+    @SerializedName("musicFolder")
     var musicFolders: List<MusicFolder>? = null
 }