Normalizes cache directories in the Application class

amethyst/src/main/java/com/vitorpamplona/amethyst/Amethyst.kt

@@ -59,10 +59,15 @@ class Amethyst : Application() {
         applicationIOScope.cancel()
     }
 
+    fun nip95cache() = safeCacheDir.resolve("NIP95")
+
     val videoCache: VideoCache by lazy {
         val newCache = VideoCache()
         runBlocking {
-            newCache.initFileCache(this@Amethyst)
+            newCache.initFileCache(
+                this@Amethyst,
+                safeCacheDir.resolve("exoplayer"),
+            )
         }
         newCache
     }
@@ -70,7 +75,7 @@ class Amethyst : Application() {
     val coilCache: DiskCache by lazy {
         DiskCache
             .Builder()
-            .directory(applicationContext.safeCacheDir.resolve("image_cache"))
+            .directory(safeCacheDir.resolve("image_cache"))
             .maxSizePercent(0.2)
             .maximumMaxSizeBytes(1024 * 1024 * 1024) // 1GB
             .build()

amethyst/src/main/java/com/vitorpamplona/amethyst/model/LocalCache.kt

@@ -1876,7 +1876,7 @@ object LocalCache {
         }
 
         try {
-            val cachePath = File(Amethyst.instance.applicationContext.cacheDir, "NIP95")
+            val cachePath = Amethyst.instance.nip95cache()
             cachePath.mkdirs()
             val file = File(cachePath, event.id)
             if (!file.exists()) {

amethyst/src/main/java/com/vitorpamplona/amethyst/service/playback/VideoCache.kt

@@ -43,13 +43,16 @@ class VideoCache {
 
     lateinit var cacheDataSourceFactory: CacheDataSource.Factory
 
-    suspend fun initFileCache(context: Context) {
+    suspend fun initFileCache(
+        context: Context,
+        cachePath: File,
+    ) {
         exoDatabaseProvider = StandaloneDatabaseProvider(context)
 
         withContext(Dispatchers.IO) {
             simpleCache =
                 SimpleCache(
-                    File(context.cacheDir, "exoplayer"),
+                    cachePath,
                     leastRecentlyUsedCacheEvictor,
                     exoDatabaseProvider,
                 )

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/note/types/FileStorage.kt

@@ -26,6 +26,7 @@ import androidx.compose.runtime.livedata.observeAsState
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.ui.platform.LocalContext
+import com.vitorpamplona.amethyst.Amethyst
 import com.vitorpamplona.amethyst.commons.richtext.BaseMediaContent
 import com.vitorpamplona.amethyst.commons.richtext.MediaLocalImage
 import com.vitorpamplona.amethyst.commons.richtext.MediaLocalVideo
@@ -74,7 +75,7 @@ private fun ObserverAndRenderNIP95(
             // Creates a new object when the event arrives to force an update of the image.
             val note = noteState?.note
             val uri = header.toNostrUri()
-            val localDir = note?.idHex?.let { File(File(appContext.cacheDir, "NIP95"), it) }
+            val localDir = note?.idHex?.let { File(Amethyst.instance.nip95cache(), it) }
             val blurHash = eventHeader.blurhash()
             val dimensions = eventHeader.dimensions()
             val description = eventHeader.alt() ?: eventHeader.content