more wip changes

mobile/android/app/build.gradle

@@ -99,6 +99,7 @@ dependencies {
   def serialization_version = '1.8.1'
   def compose_version = '1.1.1'
   def coil_version = '3.2.0'
+  def gson_version = '2.10.1'
 
   implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
   implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$kotlin_coroutines_version"
@@ -113,12 +114,10 @@ dependencies {
 
   //Glance Widget
   implementation "androidx.glance:glance-appwidget:$compose_version"
+  implementation("com.google.code.gson:gson:$gson_version")
 
   implementation("io.coil-kt.coil3:coil-compose:$coil_version")
-  implementation("io.coil-kt.coil3:coil-network-okhttp:$coil_version") {
-    // Exclude OkHttp to avoid conflicts with the one used by Flutter
-    exclude group: 'com.squareup.okhttp3', module: 'okhttp'
-  }
+  implementation("io.coil-kt.coil3:coil-network-okhttp:$coil_version")
 }
 
 // This is uncommented in F-Droid build script

mobile/android/app/src/main/kotlin/app/alextran/immich/widget/ImageDownloadWorker.kt

@@ -21,29 +21,19 @@ import android.content.Intent
 import android.content.Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION
 import android.content.Intent.FLAG_GRANT_READ_URI_PERMISSION
 import android.content.pm.PackageManager
+import android.graphics.Bitmap
 import android.util.Log
-import androidx.compose.ui.unit.DpSize
 import androidx.core.content.FileProvider.getUriForFile
-import androidx.glance.GlanceId
+import androidx.glance.*
 import androidx.glance.appwidget.GlanceAppWidgetManager
-import androidx.glance.appwidget.state.updateAppWidgetState
 import androidx.glance.appwidget.updateAll
-import androidx.work.CoroutineWorker
-import androidx.work.Data
-import androidx.work.ExistingWorkPolicy
-import androidx.work.OneTimeWorkRequestBuilder
-import androidx.work.OutOfQuotaPolicy
-import androidx.work.WorkManager
-import androidx.work.WorkerParameters
-import coil.annotation.ExperimentalCoilApi
-import coil.imageLoader
-import coil.memory.MemoryCache
-import coil.request.ErrorResult
-import coil.request.ImageRequest
-import com.example.android.appwidget.glance.toPx
-import java.time.Duration
-import kotlin.math.roundToInt
-
+import androidx.work.*
+import com.google.gson.Gson
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import java.io.File
+import java.io.FileOutputStream
+import kotlin.random.Random
 
 class ImageDownloadWorker(
   private val context: Context,
@@ -54,39 +44,23 @@ class ImageDownloadWorker(
 
     private val uniqueWorkName = ImageDownloadWorker::class.java.simpleName
 
-    fun enqueue(context: Context, size: DpSize, glanceId: GlanceId, force: Boolean = false) {
+    fun enqueue(context: Context, glanceId: GlanceId, config: WidgetConfig) {
       val manager = WorkManager.getInstance(context)
       val requestBuilder = OneTimeWorkRequestBuilder<ImageDownloadWorker>().apply {
         addTag(glanceId.toString())
         setExpedited(OutOfQuotaPolicy.RUN_AS_NON_EXPEDITED_WORK_REQUEST)
         setInputData(
           Data.Builder()
-            .putFloat("width", size.width.value.toPx)
-            .putFloat("height", size.height.value.toPx)
-            .putBoolean("force", force)
+            .putString("config", Gson().toJson(config))
+            .putInt("glanceId", glanceId.hashCode())
             .build()
         )
       }
-      val workPolicy = if (force) {
-        ExistingWorkPolicy.REPLACE
-      } else {
-        ExistingWorkPolicy.KEEP
-      }
 
       manager.enqueueUniqueWork(
-        uniqueWorkName + size.width + size.height,
-        workPolicy,
-        requestBuilder.build()
-      )
-
-      // Temporary workaround to avoid WM provider to disable itself and trigger an
-      // app widget update
-      manager.enqueueUniqueWork(
-        "$uniqueWorkName-workaround",
+        uniqueWorkName + glanceId.hashCode(),
         ExistingWorkPolicy.KEEP,
-        OneTimeWorkRequestBuilder<ImageWorker>().apply {
-          setInitialDelay(Duration.ofDays(365))
-        }.build()
+        requestBuilder.build()
       )
     }
 
@@ -100,11 +74,17 @@ class ImageDownloadWorker(
 
   override suspend fun doWork(): Result {
     return try {
-      val width = inputData.getFloat("width", 0f)
-      val height = inputData.getFloat("height", 0f)
-      val force = inputData.getBoolean("force", false)
-      val uri = getRandomImage(width, height, force)
-      updateImageWidget(width, height, uri)
+      val configString = inputData.getString("config")
+      val config = Gson().fromJson(configString, WidgetConfig::class.java)
+      val glanceId = inputData.getInt("glanceId", -1)
+
+      if (glanceId == -1) {
+        Result.failure()
+      }
+
+      fetchImage(config, glanceId)
+      updateWidget(config, glanceId)
+
       Result.success()
     } catch (e: Exception) {
       Log.e(uniqueWorkName, "Error while loading image", e)
@@ -118,72 +98,31 @@ class ImageDownloadWorker(
     }
   }
 
-  private suspend fun updateImageWidget(width: Float, height: Float, uri: String) {
+  private suspend fun updateWidget(config: WidgetConfig, glanceId: Int) {
     val manager = GlanceAppWidgetManager(context)
-    val glanceIds = manager.getGlanceIds(ImageGlanceWidget::class.java)
-    glanceIds.forEach { glanceId ->
-      updateAppWidgetState(context, glanceId) { prefs ->
-        prefs[ImageGlanceWidget.getImageKey(width, height)] = uri
-        prefs[ImageGlanceWidget.sourceKey] = "Picsum Photos"
-        prefs[ImageGlanceWidget.sourceUrlKey] = "https://picsum.photos/"
-      }
-    }
-    ImageGlanceWidget().updateAll(context)
-  }
+    val glanceIds = manager.getGlanceIds(config.widgetType.widgetClass)
 
-  /**
-   * Use Coil and Picsum Photos to randomly load images into the cache based on the provided
-   * size. This method returns the path of the cached image, which you can send to the widget.
-   */
-  @OptIn(ExperimentalCoilApi::class)
-  private suspend fun getRandomImage(width: Float, height: Float, force: Boolean): String {
-    val url = "https://picsum.photos/${width.roundToInt()}/${height.roundToInt()}"
-    val request = ImageRequest.Builder(context)
-      .data(url)
-      .build()
-
-    // Request the image to be loaded and throw error if it failed
-    with(context.imageLoader) {
-      if (force) {
-        diskCache?.remove(url)
-        memoryCache?.remove(MemoryCache.Key(url))
+    for (id in glanceIds) {
+      if (id.hashCode() == glanceId) {
+        config.widgetType.widgetClass.getDeclaredConstructor().newInstance().updateAll(context)
+        break
       }
-      val result = execute(request)
-      if (result is ErrorResult) {
-        throw result.throwable
     }
   }
 
-    // Get the path of the loaded image from DiskCache.
-    val path = context.imageLoader.diskCache?.get(url)?.use { snapshot ->
-      val imageFile = snapshot.data.toFile()
+  private suspend fun fetchImage(config: WidgetConfig, glanceId: Int) {
+    val api = ImmichAPI(config.credentials)
 
-      // Use the FileProvider to create a content URI
-      val contentUri = getUriForFile(
-        context,
-        "com.example.android.appwidget.fileprovider",
-        imageFile
-      )
+    val random = api.fetchSearchResults(SearchFilters(AssetType.IMAGE, size=1))
+    val image = api.fetchImage(random[0])
 
-      // Find the current launcher everytime to ensure it has read permissions
-      val resolveInfo = context.packageManager.resolveActivity(
-        Intent(Intent.ACTION_MAIN).apply { addCategory(Intent.CATEGORY_HOME) },
-        PackageManager.MATCH_DEFAULT_ONLY
-      )
-      val launcherName = resolveInfo?.activityInfo?.packageName
-      if (launcherName != null) {
-        context.grantUriPermission(
-          launcherName,
-          contentUri,
-          FLAG_GRANT_READ_URI_PERMISSION or FLAG_GRANT_PERSISTABLE_URI_PERMISSION
-        )
+    saveImage(image, glanceId)
   }
 
-      // return the path
-      contentUri.toString()
-    }
-    return requireNotNull(path) {
-      "Couldn't find cached file"
+  private suspend fun saveImage(bitmap: Bitmap, glanceId: Int) = withContext(Dispatchers.IO) {
+    val file = File(context.cacheDir, "widget_image_$glanceId.jpg")
+    FileOutputStream(file).use { out ->
+      bitmap.compress(Bitmap.CompressFormat.JPEG, 90, out)
     }
   }
 }

mobile/android/app/src/main/kotlin/app/alextran/immich/widget/ImmichAPI.kt

@@ -0,0 +1,85 @@
+package app.alextran.immich.widget
+
+import android.content.Context
+import android.content.SharedPreferences
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import com.google.gson.Gson
+import com.google.gson.reflect.TypeToken
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.withContext
+import java.io.OutputStreamWriter
+import java.net.HttpURLConnection
+import java.net.URL
+import java.net.URLEncoder
+import java.text.SimpleDateFormat
+import java.util.*
+
+
+class ImmichAPI(cfg: ServerConfig) {
+
+  private val gson = Gson()
+  private val serverConfig = cfg
+
+  private fun buildRequestURL(endpoint: String, params: List<Pair<String, String>> = emptyList()): URL {
+    val baseUrl = URL(serverConfig.serverEndpoint)
+    val urlString = StringBuilder("${baseUrl.protocol}://${baseUrl.host}:${baseUrl.port}$endpoint?sessionKey=${URLEncoder.encode(serverConfig.sessionKey, "UTF-8")}")
+
+    for ((key, value) in params) {
+      urlString.append("&${URLEncoder.encode(key, "UTF-8")}=${URLEncoder.encode(value, "UTF-8")}")
+    }
+
+    return URL(urlString.toString())
+  }
+
+  suspend fun fetchSearchResults(filters: SearchFilters): List<SearchResult> = withContext(Dispatchers.IO) {
+    val url = buildRequestURL("/search/random")
+    val connection = (url.openConnection() as HttpURLConnection).apply {
+      requestMethod = "POST"
+      setRequestProperty("Content-Type", "application/json")
+      doOutput = true
+    }
+
+    connection.outputStream.use {
+      OutputStreamWriter(it).use { writer ->
+        writer.write(gson.toJson(filters))
+        writer.flush()
+      }
+    }
+
+    val response = connection.inputStream.bufferedReader().readText()
+    val type = object : TypeToken<List<SearchResult>>() {}.type
+    gson.fromJson(response, type)
+  }
+
+  suspend fun fetchMemory(date: Date): List<MemoryResult> = withContext(Dispatchers.IO) {
+    val iso8601 = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSXXX", Locale.US).format(date)
+    val url = buildRequestURL("/memories", listOf("for" to iso8601))
+    val connection = (url.openConnection() as HttpURLConnection).apply {
+      requestMethod = "GET"
+    }
+
+    val response = connection.inputStream.bufferedReader().readText()
+    val type = object : TypeToken<List<MemoryResult>>() {}.type
+    gson.fromJson(response, type)
+  }
+
+  suspend fun fetchImage(asset: SearchResult): Bitmap = withContext(Dispatchers.IO) {
+    val url = buildRequestURL("/assets/${asset.id}/thumbnail", listOf("size" to "preview"))
+    val connection = url.openConnection()
+    val data = connection.getInputStream().readBytes()
+    BitmapFactory.decodeByteArray(data, 0, data.size)
+      ?: throw Exception("Invalid image data")
+  }
+
+  suspend fun fetchAlbums(): List<Album> = withContext(Dispatchers.IO) {
+    val url = buildRequestURL("/albums")
+    val connection = (url.openConnection() as HttpURLConnection).apply {
+      requestMethod = "GET"
+    }
+
+    val response = connection.inputStream.bufferedReader().readText()
+    val type = object : TypeToken<List<Album>>() {}.type
+    gson.fromJson(response, type)
+  }
+}

mobile/android/app/src/main/kotlin/app/alextran/immich/widget/Model.kt

@@ -0,0 +1,56 @@
+package app.alextran.immich.widget
+
+import androidx.glance.appwidget.GlanceAppWidget
+
+sealed class WidgetError : Exception() {
+  data object NoLogin : WidgetError()
+  data object FetchFailed : WidgetError()
+  data object Unknown : WidgetError()
+  data object AlbumNotFound : WidgetError()
+}
+
+enum class AssetType {
+  IMAGE, VIDEO, AUDIO, OTHER
+}
+
+data class SearchResult(
+  val id: String,
+  val type: AssetType
+)
+
+data class SearchFilters(
+  var type: AssetType = AssetType.IMAGE,
+  val size: Int,
+  var albumIds: List<String> = listOf()
+)
+
+data class MemoryResult(
+  val id: String,
+  var assets: List<SearchResult>,
+  val type: String,
+  val data: MemoryData
+) {
+  data class MemoryData(val year: Int)
+}
+
+data class Album(
+  val id: String,
+  val albumName: String
+)
+
+enum class WidgetType {
+  RANDOM;
+
+  val widgetClass: Class<out GlanceAppWidget>
+    get() = when (this) {
+      RANDOM -> RandomWidget::class.java
+    }
+}
+
+data class WidgetConfig(
+  val widgetType: WidgetType,
+  val params: Map<String, String>,
+  val credentials: ServerConfig
+)
+
+data class ServerConfig(val serverEndpoint: String, val sessionKey: String)

mobile/android/app/src/main/kotlin/app/alextran/immich/widget/PhotoWidget.kt

@@ -1,8 +1,6 @@
 package app.alextran.immich.widget
 
 import android.graphics.Bitmap
-import android.graphics.BitmapFactory
-import android.net.Uri
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.Color
 import androidx.glance.GlanceModifier
@@ -12,45 +10,28 @@ import androidx.glance.background
 import androidx.glance.layout.Box
 import androidx.glance.layout.ContentScale
 import androidx.glance.layout.fillMaxSize
-import androidx.glance.text.Text
 import app.alextran.immich.R
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
-import java.io.InputStream
-import java.net.HttpURLConnection
-import java.net.URL
-
-
-suspend fun downloadBitmap(urlString: String): Bitmap? =
-  withContext(Dispatchers.IO) {
-    try {
-      val url = URL(urlString)
-      val connection = url.openConnection() as HttpURLConnection
-      connection.doInput = true
-      connection.connect()
-      val input: InputStream = connection.inputStream
-      BitmapFactory.decodeStream(input)
-    } catch (e: Exception) {
-      e.printStackTrace()
-      null
-    }
-  }
-
 
 @Composable
-fun PhotoWidget(imageURI: Uri?, error: String?, subtitle: String?) {
+fun PhotoWidget(image: Bitmap?, error: String?, subtitle: String?) {
 
   Box(
     modifier = GlanceModifier
       .fillMaxSize()
       .background(Color.White) // your color here
   ) {
-    Text(subtitle ?: "WTF is this")
-//    Image(
-//      provider = ImageProvider(R.drawable.splash),
-//      contentDescription = null,
-//      contentScale = ContentScale.Crop,
-//      modifier = GlanceModifier.fillMaxSize()
-//    )
+    if (image != null) {
+      Image(
+        provider = ImageProvider(image),
+        contentDescription = "Widget Image"
+      )
+    } else {
+      Image(
+        provider = ImageProvider(R.drawable.splash),
+        contentDescription = null,
+        contentScale = ContentScale.Crop,
+        modifier = GlanceModifier.fillMaxSize()
+      )
+    }
   }
 }

mobile/android/app/src/main/kotlin/app/alextran/immich/widget/RandomWidget.kt

@@ -5,6 +5,9 @@ import HomeWidgetGlanceStateDefinition
 import android.content.Context
 import androidx.glance.appwidget.*
 import androidx.glance.*
+import androidx.glance.action.ActionParameters
+import androidx.glance.appwidget.action.ActionCallback
+import androidx.glance.appwidget.state.updateAppWidgetState
 import androidx.glance.state.GlanceStateDefinition
 
 
@@ -13,17 +16,40 @@ class RandomWidget : GlanceAppWidget() {
     get() = HomeWidgetGlanceStateDefinition()
 
   override suspend fun provideGlance(context: Context, id: GlanceId) {
-    val bitmap = downloadBitmap("https://picsum.photos/600")
-
     // fetch a random photo from server
     provideContent {
+
       val prefs = currentState<HomeWidgetGlanceState>().preferences
 
       val serverURL = prefs.getString("widget_auth_token", "")
       val sessionKey = prefs.getString("widget_auth_token", "")
 
 
-      PhotoWidget(imageURI = null, error = null, subtitle = id.hashCode().toString())
+
+      PhotoWidget(image = null, error = null, subtitle = id.hashCode().toString())
+    }
+  }
+
+  override suspend fun onDelete(context: Context, glanceId: GlanceId) {
+    super.onDelete(context, glanceId)
+    ImageDownloadWorker.cancel(context, glanceId)
+  }
+}
+
+class RefreshAction : ActionCallback {
+  override suspend fun onAction(context: Context, glanceId: GlanceId, parameters: ActionParameters) {
+    // Clear the state to show loading screen
+    updateAppWidgetState(context, glanceId) { prefs ->
+      prefs.clear()
+    }
+    ImageGlanceWidget().update(context, glanceId)
+
+    parameters.
+
+    // Enqueue a job for each size the widget can be shown in the current state
+    // (i.e landscape/portrait)
+    GlanceAppWidgetManager(context).getAppWidgetSizes(glanceId).forEach { size ->
+      ImageWorker.enqueue(context, size, glanceId, force = true)
     }
   }
 }

mobile/android/app/src/main/kotlin/app/alextran/immich/widget/WidgetEntry.kt

@@ -1,8 +1,5 @@
 package app.alextran.immich.widget
 
-enum class WidgetError {
-  NO_LOGIN, FETCH_FAILED, UNKNOWN, ALBUM_NOT_FOUND
-}
 
 data class WidgetEntry(
   val imageURI: String? = null,