Add getPlaylists api call.

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

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

@@ -0,0 +1,50 @@
+package org.moire.ultrasonic.api.subsonic
+
+import org.amshove.kluent.`should equal to`
+import org.amshove.kluent.`should equal`
+import org.amshove.kluent.`should not be`
+import org.junit.Test
+import org.moire.ultrasonic.api.subsonic.models.Playlist
+
+/**
+ * Integration test for [SubsonicAPIClient] for getPlaylists call.
+ */
+class SubsonicApiGetPlaylistsTest : SubsonicAPIClientTest() {
+    @Test
+    fun `Should parse error call`() {
+        val response = checkErrorCallParsed(mockWebServerRule) {
+            client.api.getPlaylists().execute()
+        }
+
+        response.playlists `should not be` null
+        response.playlists `should equal` emptyList()
+    }
+
+    @Test
+    fun `Should parse ok response`() {
+        mockWebServerRule.enqueueResponse("get_playlists_ok.json")
+
+        val response = client.api.getPlaylists().execute()
+
+        assertResponseSuccessful(response)
+        with(response.body().playlists) {
+            size `should equal to` 1
+            this[0] `should equal` Playlist(id = 0, name = "Aug 27, 2017 11:17 AM",
+                    owner = "admin", public = false, songCount = 16, duration = 3573,
+                    comment = "Some comment",
+                    created = parseDate("2017-08-27T11:17:26.216Z"),
+                    changed = parseDate("2017-08-27T11:17:26.218Z"),
+                    coverArt = "pl-0")
+        }
+    }
+
+    @Test
+    fun `Should pass username as a parameter`() {
+        val username = "SomeUsername"
+
+        mockWebServerRule.assertRequestParam(responseResourceName = "get_playlists_ok.json",
+                expectedParam = "username=$username") {
+            client.api.getPlaylists(username = username).execute()
+        }
+    }
+}

subsonic-api/src/integrationTest/resources/get_playlists_ok.json

@@ -0,0 +1,20 @@
+{
+  "subsonic-response" : {
+    "status" : "ok",
+    "version" : "1.15.0",
+    "playlists" : {
+      "playlist" : [ {
+        "id" : "0",
+        "name" : "Aug 27, 2017 11:17 AM",
+        "comment" : "Some comment",
+        "owner" : "admin",
+        "public" : false,
+        "songCount" : 16,
+        "duration" : 3573,
+        "created" : "2017-08-27T11:17:26.216Z",
+        "changed" : "2017-08-27T11:17:26.218Z",
+        "coverArt" : "pl-0"
+      } ]
+    }
+  }
+}

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

@@ -6,6 +6,7 @@ import org.moire.ultrasonic.api.subsonic.response.GetArtistsResponse
 import org.moire.ultrasonic.api.subsonic.response.GetIndexesResponse
 import org.moire.ultrasonic.api.subsonic.response.GetMusicDirectoryResponse
 import org.moire.ultrasonic.api.subsonic.response.GetPlaylistResponse
+import org.moire.ultrasonic.api.subsonic.response.GetPlaylistsResponse
 import org.moire.ultrasonic.api.subsonic.response.LicenseResponse
 import org.moire.ultrasonic.api.subsonic.response.MusicFoldersResponse
 import org.moire.ultrasonic.api.subsonic.response.SearchResponse
@@ -87,4 +88,7 @@ interface SubsonicAPIDefinition {
 
     @GET("getPlaylist.view")
     fun getPlaylist(@Query("id") id: Long): Call<GetPlaylistResponse>
+
+    @GET("getPlaylists.view")
+    fun getPlaylists(@Query("username") username: String? = null): Call<GetPlaylistsResponse>
 }

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

@@ -7,6 +7,7 @@ data class Playlist(
         val id: Long = -1,
         val name: String = "",
         val owner: String = "",
+        val comment: String = "",
         val public: Boolean = false,
         val songCount: Int = 0,
         val duration: Long = 0,

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

@@ -0,0 +1,19 @@
+package org.moire.ultrasonic.api.subsonic.response
+
+import com.fasterxml.jackson.annotation.JsonProperty
+import org.moire.ultrasonic.api.subsonic.SubsonicAPIVersions
+import org.moire.ultrasonic.api.subsonic.SubsonicError
+import org.moire.ultrasonic.api.subsonic.models.Playlist
+
+class GetPlaylistsResponse(status: Status,
+                           version: SubsonicAPIVersions,
+                           error: SubsonicError?)
+    : SubsonicResponse(status, version, error) {
+    @JsonProperty("playlists")
+    private val playlistsWrapper: PlaylistsWrapper = PlaylistsWrapper()
+
+    val playlists: List<Playlist>
+        get() = playlistsWrapper.playlistList
+}
+
+private class PlaylistsWrapper(@JsonProperty("playlist") val playlistList: List<Playlist> = emptyList())