Improve download strategy

app/src/main/java/com/aurora/store/data/downloader/RequestBuilder.kt

@@ -35,7 +35,7 @@ private inline fun Request.attachMetaData(app: App) {
     apply {
         groupId = app.id
         tag = app.packageName
-        enqueueAction = EnqueueAction.UPDATE_ACCORDINGLY
+        enqueueAction = EnqueueAction.REPLACE_EXISTING
         networkType = NetworkType.ALL
     }
 }

app/src/main/java/com/aurora/store/view/ui/details/AppDetailsActivity.kt

@@ -364,15 +364,8 @@ class AppDetailsActivity : BaseDetailsActivity() {
         when (status) {
             Status.PAUSED -> {
                 fetch.resumeGroup(app.id)
-                isNone = false
             }
-            Status.NONE, Status.CANCELLED -> {
-                fetch.deleteGroup(app.id)
-                isNone = true
-            }
-            Status.ADDED -> isNone = false
             Status.DOWNLOADING -> {
-                isNone = false
                 flip(1)
                 toast("Already downloading")
             }
@@ -382,11 +375,9 @@ class AppDetailsActivity : BaseDetailsActivity() {
                 }
             }
             else -> {
+                purchase()
             }
         }
-        if (isNone) {
-            purchase()
-        }
     }
 
     private fun purchase() {