Show useful error messages

Author: fulmeek

app/src/main/java/com/tomclaw/appsend_rb/screen/apps/AppsInteractor.kt

@@ -148,12 +148,12 @@ class AppsInteractorImpl(
                     APPS_DIR_NAME
                 )
                 if (!(directory.exists() || directory.mkdirs())) {
-                    emitter.onError(IOException("unable to create directory"))
+                    emitter.onError(IOException("unable to create directory " + directory.name))
                     return@create
                 }
                 val destination = File(directory, getApkName(entity))
                 if (destination.exists() && !destination.delete()) {
-                    emitter.onError(IOException("unable to delete destination file"))
+                    emitter.onError(IOException("unable to delete destination file " + destination.name))
                     return@create
                 }
                 val buffer = ByteArray(524288)

app/src/main/java/com/tomclaw/appsend_rb/screen/apps/AppsPresenter.kt

@@ -189,7 +189,7 @@ class AppsPresenterImpl(
             .subscribe({ file ->
                 router?.shareApk(file)
             }, {
-                view?.showAppExportError()
+                view?.showAppExportError(it.message.toString())
             })
     }
 
@@ -202,7 +202,7 @@ class AppsPresenterImpl(
             .subscribe({ file ->
                 view?.showExtractSuccess(file.path)
             }, {
-                view?.showAppExportError()
+                view?.showAppExportError(it.message.toString())
             })
     }
 

app/src/main/java/com/tomclaw/appsend_rb/screen/apps/AppsView.kt

@@ -47,7 +47,7 @@ interface AppsView {
 
     fun showAppLaunchError()
 
-    fun showAppExportError()
+    fun showAppExportError(msg: String)
 
     fun showNoRequestedPermissionsMessage()
 
@@ -183,8 +183,8 @@ class AppsViewImpl(
         Snackbar.make(recycler, R.string.non_launchable_package, Snackbar.LENGTH_LONG).show()
     }
 
-    override fun showAppExportError() {
-        Snackbar.make(recycler, R.string.app_extract_failed, Snackbar.LENGTH_LONG).show()
+    override fun showAppExportError(msg: String) {
+        Snackbar.make(recycler, msg, Snackbar.LENGTH_LONG).show()
     }
 
     override fun showNoRequestedPermissionsMessage() {