From 2de18227c18b69b358af7f57d7cfd701f95a53ef Mon Sep 17 00:00:00 2001
From: Zlatin Balevsky <zlatinb@gmail.com>
Date: Sun, 23 Jun 2019 07:48:49 +0100
Subject: [PATCH] persist pause state

---
 core/src/main/groovy/com/muwire/core/Core.groovy      |  4 +++-
 .../com/muwire/core/download/DownloadManager.groovy   | 11 ++++++++++-
 .../muwire/core/download/UIDownloadPausedEvent.groovy |  6 ++++++
 .../com/muwire/gui/MainFrameController.groovy         |  2 ++
 4 files changed, 21 insertions(+), 2 deletions(-)
 create mode 100644 core/src/main/groovy/com/muwire/core/download/UIDownloadPausedEvent.groovy

diff --git a/core/src/main/groovy/com/muwire/core/Core.groovy b/core/src/main/groovy/com/muwire/core/Core.groovy
index 250acf64..96220a0c 100644
--- a/core/src/main/groovy/com/muwire/core/Core.groovy
+++ b/core/src/main/groovy/com/muwire/core/Core.groovy
@@ -16,6 +16,7 @@ import com.muwire.core.download.DownloadManager
 import com.muwire.core.download.SourceDiscoveredEvent
 import com.muwire.core.download.UIDownloadCancelledEvent
 import com.muwire.core.download.UIDownloadEvent
+import com.muwire.core.download.UIDownloadPausedEvent
 import com.muwire.core.files.FileDownloadedEvent
 import com.muwire.core.files.FileHashedEvent
 import com.muwire.core.files.FileHasher
@@ -217,7 +218,8 @@ public class Core {
         eventBus.register(FileDownloadedEvent.class, downloadManager)
         eventBus.register(UIDownloadCancelledEvent.class, downloadManager)
         eventBus.register(SourceDiscoveredEvent.class, downloadManager)
-        
+        eventBus.register(UIDownloadPausedEvent.class, downloadManager)
+                
         log.info("initializing upload manager")
         UploadManager uploadManager = new UploadManager(eventBus, fileManager, meshManager, downloadManager)
         
diff --git a/core/src/main/groovy/com/muwire/core/download/DownloadManager.groovy b/core/src/main/groovy/com/muwire/core/download/DownloadManager.groovy
index bd28907e..da17e667 100644
--- a/core/src/main/groovy/com/muwire/core/download/DownloadManager.groovy
+++ b/core/src/main/groovy/com/muwire/core/download/DownloadManager.groovy
@@ -90,6 +90,10 @@ public class DownloadManager {
         persistDownloaders()
     }
     
+    public void onUIDownloadPausedEvent(UIDownloadPausedEvent e) {
+        persistDownloaders()
+    }
+    
     void resume(Downloader downloader) {
         executor.execute({downloader.download() as Runnable})
     }
@@ -119,7 +123,10 @@ public class DownloadManager {
             
             def downloader = new Downloader(eventBus, this, me, file, (long)json.length,
                 infoHash, json.pieceSizePow2, connector, destinations, incompletes, pieces)
-            downloaders.put(infoHash, downloader)
+            if (json.paused != null)
+                downloader.paused = json.paused
+            if (!downloader.paused)
+                downloaders.put(infoHash, downloader)
             downloader.download()
             eventBus.publish(new DownloadStartedEvent(downloader : downloader))
         }
@@ -174,6 +181,8 @@ public class DownloadManager {
                         json.hashList = Base64.encode(infoHash.hashList)
                     else
                         json.hashRoot = Base64.encode(infoHash.getRoot())
+                        
+                    json.paused = downloader.paused
                     writer.println(JsonOutput.toJson(json))
                 }
             }
diff --git a/core/src/main/groovy/com/muwire/core/download/UIDownloadPausedEvent.groovy b/core/src/main/groovy/com/muwire/core/download/UIDownloadPausedEvent.groovy
new file mode 100644
index 00000000..cff74afd
--- /dev/null
+++ b/core/src/main/groovy/com/muwire/core/download/UIDownloadPausedEvent.groovy
@@ -0,0 +1,6 @@
+package com.muwire.core.download
+
+import com.muwire.core.Event
+
+class UIDownloadPausedEvent extends Event {
+}
diff --git a/gui/griffon-app/controllers/com/muwire/gui/MainFrameController.groovy b/gui/griffon-app/controllers/com/muwire/gui/MainFrameController.groovy
index 5a2c1932..7e1b4de2 100644
--- a/gui/griffon-app/controllers/com/muwire/gui/MainFrameController.groovy
+++ b/gui/griffon-app/controllers/com/muwire/gui/MainFrameController.groovy
@@ -17,6 +17,7 @@ import com.muwire.core.Core
 import com.muwire.core.download.DownloadStartedEvent
 import com.muwire.core.download.UIDownloadCancelledEvent
 import com.muwire.core.download.UIDownloadEvent
+import com.muwire.core.download.UIDownloadPausedEvent
 import com.muwire.core.search.QueryEvent
 import com.muwire.core.search.SearchEvent
 import com.muwire.core.trust.TrustEvent
@@ -170,6 +171,7 @@ class MainFrameController {
     void pause() {
         def downloader = model.downloads[selectedDownload()].downloader
         downloader.pause()
+        core.eventBus.publish(new UIDownloadPausedEvent())
     }
 
     private void markTrust(String tableName, TrustLevel level, def list) {