Add updatePlaylist() call.

Signed-off-by: Yahor Berdnikau <egorr.berd@gmail.com>

subsonic-api/src/integrationTest/kotlin/org/moire/ultrasonic/api/subsonic/SubsonicApiUpdatePlaylistTest.kt

@@ -0,0 +1,85 @@
+package org.moire.ultrasonic.api.subsonic
+
+import org.junit.Test
+
+/**
+ * Integration test for [SubsonicAPIClient] for updatePlaylist call.
+ */
+class SubsonicApiUpdatePlaylistTest : SubsonicAPIClientTest() {
+    @Test
+    fun `Should handle error response`() {
+        checkErrorCallParsed(mockWebServerRule) {
+            client.api.updatePlaylist(10).execute()
+        }
+    }
+
+    @Test
+    fun `Should handle ok response`() {
+        mockWebServerRule.enqueueResponse("ping_ok.json")
+
+        val response = client.api.updatePlaylist(15).execute()
+
+        assertResponseSuccessful(response)
+    }
+
+    @Test
+    fun `Should pass playlist id param in request`() {
+        val id = 5453L
+
+        mockWebServerRule.assertRequestParam(responseResourceName = "ping_ok.json",
+                expectedParam = "playlistId=$id") {
+            client.api.updatePlaylist(id = id).execute()
+        }
+    }
+
+    @Test
+    fun `Should pass name param in request`() {
+        val name = "some-name"
+
+        mockWebServerRule.assertRequestParam(responseResourceName = "ping_ok.json",
+                expectedParam = "name=$name") {
+            client.api.updatePlaylist(22, name = name).execute()
+        }
+    }
+
+    @Test
+    fun `Should pass comment param in request`() {
+        val comment = "some-unusual-comment"
+
+        mockWebServerRule.assertRequestParam(responseResourceName = "ping_ok.json",
+                expectedParam = "comment=$comment") {
+            client.api.updatePlaylist(42, comment = comment).execute()
+        }
+    }
+
+    @Test
+    fun `Should pass public param in request`() {
+        val public = true
+
+        mockWebServerRule.assertRequestParam(responseResourceName = "ping_ok.json",
+                expectedParam = "public=$public") {
+            client.api.updatePlaylist(53, public = public).execute()
+        }
+    }
+
+    @Test
+    fun `Should pass song ids to update in request`() {
+        val songIds = listOf(45L, 81L)
+
+        mockWebServerRule.assertRequestParam(responseResourceName = "ping_ok.json",
+                expectedParam = "songIdToAdd=${songIds[0]}&songIdToAdd=${songIds[1]}") {
+            client.api.updatePlaylist(25, songIdsToAdd = songIds).execute()
+        }
+    }
+
+    @Test
+    fun `Should pass song indexes to remove in request`() {
+        val songIndexesToRemove = listOf(129, 1)
+
+        mockWebServerRule.assertRequestParam(responseResourceName = "ping_ok.json",
+                expectedParam = "songIndexToRemove=${songIndexesToRemove[0]}&" +
+                        "songIndexToRemove=${songIndexesToRemove[1]}") {
+            client.api.updatePlaylist(49, songIndexesToRemove = songIndexesToRemove).execute()
+        }
+    }
+}

subsonic-api/src/main/kotlin/org/moire/ultrasonic/api/subsonic/SubsonicAPIDefinition.kt

@@ -99,4 +99,13 @@ interface SubsonicAPIDefinition {
 
     @GET("deletePlaylist.view")
     fun deletePlaylist(@Query("id") id: Long): Call<SubsonicResponse>
+
+    @GET("updatePlaylist.view")
+    fun updatePlaylist(
+            @Query("playlistId") id: Long,
+            @Query("name") name: String? = null,
+            @Query("comment") comment: String? = null,
+            @Query("public") public: Boolean? = null,
+            @Query("songIdToAdd") songIdsToAdd: List<Long>? = null,
+            @Query("songIndexToRemove") songIndexesToRemove: List<Int>? = null) : Call<SubsonicResponse>
 }