New data model in android: Adding jackson for JSON deserialization, adding data classes, setting up API caller

android/app/build.gradle

@@ -85,6 +85,9 @@ dependencies {
 
   // OK HTTP
   implementation 'com.squareup.okhttp3:okhttp:4.9.2'
+
+  // Jackson for JSON
+  implementation 'com.fasterxml.jackson.module:jackson-module-kotlin:2.12.1'
 }
 
 apply from: 'capacitor.build.gradle'

android/app/src/main/java/com/audiobookshelf/app/MyNativeAudio.kt

@@ -5,7 +5,9 @@ import android.os.Handler
 import android.os.Looper
 import android.util.Log
 import androidx.core.content.ContextCompat
+import com.audiobookshelf.app.server.ApiHandler
 import com.capacitorjs.plugins.app.AppPlugin
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
 import com.getcapacitor.*
 import com.getcapacitor.annotation.CapacitorPlugin
 import org.json.JSONObject
@@ -15,10 +17,12 @@ class MyNativeAudio : Plugin() {
   private val tag = "MyNativeAudio"
 
   lateinit var mainActivity:MainActivity
+  lateinit var apiHandler:ApiHandler
   lateinit var playerNotificationService: PlayerNotificationService
 
   override fun load() {
     mainActivity = (activity as MainActivity)
+    apiHandler = ApiHandler(mainActivity)
 
     var foregroundServiceReady : () -> Unit = {
       playerNotificationService = mainActivity.foregroundService
@@ -59,6 +63,37 @@ class MyNativeAudio : Plugin() {
     notifyListeners(evtName, ret)
   }
 
+  @PluginMethod
+  fun prepareLibraryItem(call: PluginCall) {
+    var libraryItemId = call.getString("libraryItemId", "").toString()
+    var mediaEntityId = call.getString("mediaEntityId", "").toString()
+
+    apiHandler.playLibraryItem(libraryItemId) {
+
+      Handler(Looper.getMainLooper()).post() {
+        Log.d(tag, "Preparing Player TEST ${jacksonObjectMapper().writeValueAsString(it)}")
+        playerNotificationService.preparePlayer(it)
+      }
+
+      call.resolve(JSObject(jacksonObjectMapper().writeValueAsString(it)))
+    }
+  }
+
+  @PluginMethod
+  fun getLibraryItems(call: PluginCall) {
+    var libraryId = call.getString("libraryId", "").toString()
+    apiHandler.getLibraryItems(libraryId)  {
+      val mapper = jacksonObjectMapper()
+      var jsobj = JSObject()
+      var libarray = JSArray()
+      it.map {
+        libarray.put(JSObject(mapper.writeValueAsString(it)))
+      }
+      jsobj.put("value", libarray)
+      call.resolve(jsobj)
+    }
+  }
+
   @PluginMethod
   fun initPlayer(call: PluginCall) {
     if (!PlayerNotificationService.isStarted) {

android/app/src/main/java/com/audiobookshelf/app/PlayerNotificationService.kt

@@ -24,6 +24,7 @@ import androidx.media.MediaBrowserServiceCompat
 import androidx.media.utils.MediaConstants
 import com.anggrayudi.storage.file.isExternalStorageDocument
 import com.audiobookshelf.app.data.DbManager
+import com.audiobookshelf.app.data.PlaybackSession
 import com.getcapacitor.Bridge
 import com.getcapacitor.JSObject
 import com.google.android.exoplayer2.*
@@ -85,6 +86,7 @@ class PlayerNotificationService : MediaBrowserServiceCompat()  {
   private var channelName = "Audiobookshelf Channel"
 
   private var currentAudiobookStreamData:AudiobookStreamData? = null
+  private var currentPlaybackSession:PlaybackSession? = null
 
   private var mediaButtonClickCount: Int = 0
   var mediaButtonClickTimeout: Long = 1000  //ms
@@ -376,11 +378,11 @@ class PlayerNotificationService : MediaBrowserServiceCompat()  {
     val queueNavigator: TimelineQueueNavigator = object : TimelineQueueNavigator(mediaSession) {
       override fun getMediaDescription(player: Player, windowIndex: Int): MediaDescriptionCompat {
         var builder = MediaDescriptionCompat.Builder()
-          .setMediaId(currentAudiobookStreamData!!.id)
-          .setTitle(currentAudiobookStreamData!!.title)
-          .setSubtitle(currentAudiobookStreamData!!.author)
-          .setMediaUri(currentAudiobookStreamData!!.playlistUri)
-          .setIconUri(currentAudiobookStreamData!!.coverUri)
+          .setMediaId(currentPlaybackSession!!.id)
+          .setTitle(currentPlaybackSession!!.getTitle())
+          .setSubtitle(currentPlaybackSession!!.getAuthor())
+//          .setMediaUri(currentPlaybackSession!!.getContentUri())
+//          .setIconUri(currentAudiobookStreamData!!.)
         return builder.build()
       }
     }
@@ -600,7 +602,7 @@ class PlayerNotificationService : MediaBrowserServiceCompat()  {
           if (currentPlayer.playbackState == Player.STATE_READY) {
             Log.d(tag, "STATE_READY : " + mPlayer.duration.toString())
 
-            currentAudiobookStreamData!!.hasPlayerLoaded = true
+//            currentAudiobookStreamData!!.hasPlayerLoaded = true
             if (lastPauseTime == 0L) {
               sendClientMetadata("ready_no_sync")
               lastPauseTime = -1;
@@ -664,6 +666,23 @@ class PlayerNotificationService : MediaBrowserServiceCompat()  {
   /*
     User callable methods
   */
+  fun preparePlayer(playbackSession: PlaybackSession) {
+    currentPlaybackSession = playbackSession
+    var metadata = playbackSession.getMediaMetadataCompat()
+    mediaSession.setMetadata(metadata)
+    var mediaMetadata = playbackSession.getMediaMetadata()
+    var mediaUrl = playbackSession.getContentUri()
+    var mimeType = playbackSession.getMimeType()
+    Log.d(tag, "Media URL $mediaUrl")
+    var mediaUri = Uri.parse(mediaUrl)
+    var mediaItem = MediaItem.Builder().setUri(mediaUri).setMediaMetadata(mediaMetadata).setMimeType(mimeType).build()
+    var dataSourceFactory = DefaultDataSourceFactory(ctx, channelId)
+    var mediaSource = ProgressiveMediaSource.Factory(dataSourceFactory).createMediaSource(mediaItem)
+    mPlayer.setMediaSource(mediaSource, 0L)
+    mPlayer.prepare()
+    mPlayer.playWhenReady = true
+  }
+
   fun initPlayer(audiobookStreamData: AudiobookStreamData) {
     currentAudiobookStreamData = audiobookStreamData
 

android/app/src/main/java/com/audiobookshelf/app/data/DataClasses.kt

@@ -0,0 +1,211 @@
+package com.audiobookshelf.app.data
+
+import android.net.Uri
+import android.support.v4.media.MediaMetadataCompat
+import com.fasterxml.jackson.annotation.*
+import com.google.android.exoplayer2.MediaMetadata
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class LibraryItem(
+  var id:String,
+  var ino:String,
+  var libraryId:String,
+  var folderId:String,
+  var path:String,
+  var relPath:String,
+  var mtimeMs:Long,
+  var ctimeMs:Long,
+  var birthtimeMs:Long,
+  var addedAt:Long,
+  var updatedAt:Long,
+  var lastScan:Long?,
+  var scanVersion:String?,
+  var isMissing:Boolean,
+  var isInvalid:Boolean,
+  var mediaType:String,
+  var media:MediaEntity,
+  var libraryFiles:MutableList<LibraryFile>
+)
+
+// This auto-detects whether it is a Book or Podcast
+@JsonTypeInfo(use=JsonTypeInfo.Id.DEDUCTION)
+@JsonSubTypes(
+  JsonSubTypes.Type(Book::class),
+  JsonSubTypes.Type(Podcast::class)
+)
+open class MediaEntity {}
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class Podcast(
+  var metadata:PodcastMetadata,
+  var coverPath:String?,
+  var tags:MutableList<String>,
+  var episodes:MutableList<PodcastEpisode>,
+  var autoDownloadEpisodes:Boolean
+) : MediaEntity()
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class Book(
+  var metadata:BookMetadata,
+  var coverPath:String?,
+  var tags:MutableList<String>,
+  var audiobooks:MutableList<Audiobook>
+) : MediaEntity()
+
+// This auto-detects whether it is a Book or Podcast
+@JsonTypeInfo(use=JsonTypeInfo.Id.DEDUCTION)
+@JsonSubTypes(
+  JsonSubTypes.Type(BookMetadata::class),
+  JsonSubTypes.Type(PodcastMetadata::class)
+)
+open class MediaEntityMetadata {}
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class BookMetadata(
+  var title:String,
+  var subtitle:String?,
+  var authors:MutableList<Author>
+) : MediaEntityMetadata()
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class PodcastMetadata(
+  var title:String,
+  var author:String?,
+  var feedUrl:String,
+  var genres:MutableList<String>
+) : MediaEntityMetadata()
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class Author(
+  var id:String,
+  var name:String,
+  var coverPath:String?
+)
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class Audiobook(
+  var id:String,
+  var index:Int,
+  var name:String,
+  var audioFiles:MutableList<AudioFile>
+)
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class PodcastEpisode(
+  var id:String,
+  var index:Int,
+  var episode:String?,
+  var episodeType:String?,
+  var title:String?,
+  var subtitle:String?,
+  var description:String?,
+  var audioFile:AudioFile
+)
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class LibraryFile(
+  var ino:String,
+  var metadata:FileMetadata
+)
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class FileMetadata(
+  var filename:String,
+  var ext:String,
+  var path:String,
+  var relPath:String
+)
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class AudioFile(
+  var index:Int,
+  var ino:String,
+  var metadata:FileMetadata
+)
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class Library(
+  var id:String,
+  var name:String,
+  var folders:MutableList<Folder>,
+  var icon:String,
+  var mediaType:String
+)
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class Folder(
+  var id:String,
+  var fullPath:String
+)
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+class PlaybackSession(
+  var id:String,
+  var userId:String,
+  var libraryItemId:String,
+  var mediaEntityId:String,
+  var mediaType:String,
+  var mediaMetadata:MediaEntityMetadata,
+  var duration:Double,
+  var playMethod:Int,
+  var audioTracks:MutableList<AudioTrack>,
+  var currentTime:Double,
+  var serverUrl:String,
+  var token:String
+) {
+  fun getTitle():String {
+    var metadata = mediaMetadata as BookMetadata
+    return metadata.title
+  }
+  fun getAuthor():String {
+    var metadata = mediaMetadata as BookMetadata
+    return  metadata.authors.joinToString(",") { it.name }
+  }
+  fun getContentUri():String {
+    // TODO: Using Uri.parse here is throwing error with jackson
+    var audioTrack = audioTracks[0]
+    return "$serverUrl${audioTrack.contentUrl}?token=$token"
+  }
+  fun getMimeType():String {
+    var audioTrack = audioTracks[0]
+    return audioTrack.mimeType
+  }
+  fun getMediaMetadataCompat(): MediaMetadataCompat {
+      var metadata = mediaMetadata as BookMetadata
+
+    var metadataBuilder = MediaMetadataCompat.Builder()
+      .putString(MediaMetadataCompat.METADATA_KEY_TITLE, metadata.title)
+      .putString(MediaMetadataCompat.METADATA_KEY_DISPLAY_TITLE, metadata.title)
+      .putString(MediaMetadataCompat.METADATA_KEY_DISPLAY_SUBTITLE, metadata.authors.joinToString(",") { it.name })
+      .putString(MediaMetadataCompat.METADATA_KEY_AUTHOR, metadata.authors.joinToString(",") { it.name })
+      .putString(MediaMetadataCompat.METADATA_KEY_ARTIST, metadata.authors.joinToString(",") { it.name })
+      .putString(MediaMetadataCompat.METADATA_KEY_ALBUM, "series")
+      .putString(MediaMetadataCompat.METADATA_KEY_MEDIA_ID, id)
+    return metadataBuilder.build()
+  }
+  fun getMediaMetadata(): MediaMetadata {
+    var metadata = mediaMetadata as BookMetadata
+    var authorName = metadata.authors.joinToString(",") { it.name }
+    var metadataBuilder = MediaMetadata.Builder()
+      .setTitle(metadata.title)
+      .setDisplayTitle(metadata.title)
+      .setArtist(authorName)
+      .setAlbumArtist(authorName)
+      .setSubtitle(authorName)
+
+//    var contentUri = this.getContentUri()
+//      metadataBuilder.setMediaUri(contentUri)
+
+    return metadataBuilder.build()
+  }
+}
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+data class AudioTrack(
+  var index:Int,
+  var startOffset:Double,
+  var duration:Double,
+  var title:String,
+  var contentUrl:String,
+  var mimeType:String
+)

android/app/src/main/java/com/audiobookshelf/app/server/ApiHandler.kt

@@ -0,0 +1,124 @@
+package com.audiobookshelf.app.server
+
+import android.app.Activity
+import android.content.Context
+import android.content.SharedPreferences
+import android.util.Log
+import com.audiobookshelf.app.data.Library
+import com.audiobookshelf.app.data.LibraryItem
+import com.audiobookshelf.app.data.PlaybackSession
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import com.getcapacitor.JSArray
+import com.getcapacitor.JSObject
+import okhttp3.*
+import okhttp3.MediaType.Companion.toMediaType
+import okhttp3.RequestBody.Companion.toRequestBody
+import java.io.IOException
+
+class ApiHandler {
+  val tag = "ApiHandler"
+  private var client = OkHttpClient()
+  var ctx: Context
+  var serverUrl = ""
+  var token = ""
+  var storageSharedPreferences: SharedPreferences? = null
+
+  constructor(_ctx: Context) {
+    ctx = _ctx
+    init()
+  }
+
+  fun init() {
+    storageSharedPreferences = ctx.getSharedPreferences("CapacitorStorage", Activity.MODE_PRIVATE)
+    serverUrl = storageSharedPreferences?.getString("serverUrl", "").toString()
+    Log.d(tag, "SHARED PREF SERVERURL $serverUrl")
+    token = storageSharedPreferences?.getString("token", "").toString()
+    Log.d(tag, "SHARED PREF TOKEN $token")
+  }
+
+  fun getRequest(endpoint:String, cb: (JSObject) -> Unit) {
+    val request = Request.Builder()
+      .url("$serverUrl$endpoint").addHeader("Authorization", "Bearer $token")
+      .build()
+    makeRequest(request, cb)
+  }
+
+  fun postRequest(endpoint:String, payload: JSObject, cb: (JSObject) -> Unit) {
+    val mediaType = "application/json; charset=utf-8".toMediaType()
+    val requestBody = payload.toString().toRequestBody(mediaType)
+    val request = Request.Builder().post(requestBody)
+      .url("$serverUrl$endpoint").addHeader("Authorization", "Bearer $token")
+      .build()
+    makeRequest(request, cb)
+  }
+
+  fun makeRequest(request:Request, cb: (JSObject) -> Unit) {
+    client.newCall(request).enqueue(object : Callback {
+      override fun onFailure(call: Call, e: IOException) {
+        Log.d(tag, "FAILURE TO CONNECT")
+        e.printStackTrace()
+        cb(JSObject())
+      }
+
+      override fun onResponse(call: Call, response: Response) {
+        response.use {
+          if (!response.isSuccessful) throw IOException("Unexpected code $response")
+          var bodyString = response.body!!.string()
+          var jsonObj = JSObject()
+          if (bodyString.startsWith("[")) {
+            var array = JSArray(bodyString)
+            jsonObj.put("value", array)
+          } else {
+            jsonObj = JSObject(bodyString)
+          }
+          cb(jsonObj)
+        }
+      }
+    })
+  }
+
+  fun getLibraries(cb: (List<Library>) -> Unit) {
+    val mapper = jacksonObjectMapper()
+    getRequest("/api/libraries") {
+      val libraries = mutableListOf<Library>()
+      if (it.has("value")) {
+        var array = it.getJSONArray("value")!!
+        for (i in 0 until array.length()) {
+          val library = mapper.readValue<Library>(array.get(i).toString())
+          libraries.add(library)
+        }
+      }
+      cb(libraries)
+    }
+  }
+
+  fun getLibraryItems(libraryId:String, cb: (List<LibraryItem>) -> Unit) {
+    val mapper = jacksonObjectMapper()
+    getRequest("/api/libraries/$libraryId/items") {
+      val items = mutableListOf<LibraryItem>()
+      if (it.has("results")) {
+        var array = it.getJSONArray("results")
+        for (i in 0 until array.length()) {
+          val item = mapper.readValue<LibraryItem>(array.get(i).toString())
+          items.add(item)
+        }
+      }
+      cb(items)
+    }
+  }
+
+  fun playLibraryItem(libraryItemId:String, cb: (PlaybackSession) -> Unit) {
+    val mapper = jacksonObjectMapper()
+    var payload = JSObject()
+    payload.put("mediaPlayer", "exo-player")
+    payload.put("forceDirectPlay", true)
+
+    postRequest("/api/items/$libraryItemId/play", payload) {
+      it.put("serverUrl", serverUrl)
+      it.put("token", token)
+      val playbackSession = mapper.readValue<PlaybackSession>(it.toString())
+      cb(playbackSession)
+    }
+  }
+}

components/app/AudioPlayerContainer.vue

@@ -479,6 +479,12 @@ export default {
       this.$store.commit('setLibraryItemStream', libraryItem)
 
       // TODO: Call load library item in native
+      console.log('TEST prepare library item', libraryItemId)
+      MyNativeAudio.prepareLibraryItem({ libraryItemId }).then((data) => {
+        console.log('TEST library item play response', JSON.stringify(data))
+      }).catch((error) => {
+        console.error('TEST failed', error)
+      })
     }
   },
   mounted() {

pages/account.vue

@@ -26,12 +26,16 @@
 
     <ui-btn v-if="!isUpdateAvailable || immediateUpdateAllowed" class="w-full my-4" color="primary" @click="openAppStore">Open app store</ui-btn>
 
+    <!-- Used for testing API -->
+    <ui-btn @click="testCall">Test Call</ui-btn>
+
     <p class="text-xs text-gray-400">UA: {{ updateAvailability }} | Avail: {{ availableVersion }} | Curr: {{ currentVersion }} | ImmedAllowed: {{ immediateUpdateAllowed }}</p>
   </div>
 </template>
 
 <script>
 import { AppUpdate } from '@robingenz/capacitor-app-update'
+import MyNativeAudio from '@/plugins/my-native-audio'
 
 export default {
   asyncData({ redirect, store }) {
@@ -74,6 +78,14 @@ export default {
     }
   },
   methods: {
+    testCall() {
+      // Used for testing API
+      console.log('Making Test call')
+      var libraryId = this.$store.state.libraries.currentLibraryId
+      MyNativeAudio.getLibraryItems({ libraryId }).then((res) => {
+        console.log('TEST CALL response', JSON.stringify(res))
+      })
+    },
     async logout() {
       await this.$axios.$post('/logout').catch((error) => {
         console.error(error)