From b85c1a803be1bc6f2336d43423227aa8351d6563 Mon Sep 17 00:00:00 2001
From: Daniel Dakhno <dakhnod@gmail.com>
Date: Sat, 30 Jan 2021 22:20:07 +0100
Subject: [PATCH] Fossil HR: enumerate apps on watch on every connect

---
 .../fossil_hr/FossilHRWatchAdapter.java       | 11 ++---
 .../application/ApplicationInformation.java   | 18 +++++++
 .../application/ApplicationsListRequest.java  | 49 +++++++++++++++++++
 3 files changed, 72 insertions(+), 6 deletions(-)
 create mode 100644 app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/requests/fossil_hr/application/ApplicationInformation.java
 create mode 100644 app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/requests/fossil_hr/application/ApplicationsListRequest.java

diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/adapter/fossil_hr/FossilHRWatchAdapter.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/adapter/fossil_hr/FossilHRWatchAdapter.java
index 7c6c7e3cd..d51678745 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/adapter/fossil_hr/FossilHRWatchAdapter.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/adapter/fossil_hr/FossilHRWatchAdapter.java
@@ -182,12 +182,7 @@ public class FossilHRWatchAdapter extends FossilWatchAdapter {
     }
 
     private void listApplications(){
-        queueWrite(new ApplicationsListRequest(this) {
-            @Override
-            public void handleApplicationsList(List<ApplicationInformation> applications) {
-                installedApplications = applications;
-            }
-        });
+        queueWrite(new ApplicationsListRequest(this));
     }
 
     private void initializeAfterAuthentication(boolean authenticated) {
@@ -390,6 +385,10 @@ public class FossilHRWatchAdapter extends FossilWatchAdapter {
         uploadWidgets();
     }
 
+    public void setInstalledApplications(List<ApplicationInformation> installedApplications) {
+        this.installedApplications = installedApplications;
+    }
+
     private void uploadWidgets() {
         ArrayList<Widget> systemWidgets = new ArrayList<>(widgets.size());
         for (Widget widget : widgets) {
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/requests/fossil_hr/application/ApplicationInformation.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/requests/fossil_hr/application/ApplicationInformation.java
new file mode 100644
index 000000000..73f3a261a
--- /dev/null
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/requests/fossil_hr/application/ApplicationInformation.java
@@ -0,0 +1,18 @@
+package nodomain.freeyourgadget.gadgetbridge.service.devices.qhybrid.requests.fossil_hr.application;
+
+public class ApplicationInformation {
+    String appName, version;
+    int hash;
+    byte fileHandle;
+
+    public ApplicationInformation(String appName, String version, int hash, byte fileHandle) {
+        this.appName = appName;
+        this.version = version;
+        this.hash = hash;
+        this.fileHandle = fileHandle;
+    }
+
+    public String getAppName() {
+        return appName;
+    }
+}
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/requests/fossil_hr/application/ApplicationsListRequest.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/requests/fossil_hr/application/ApplicationsListRequest.java
new file mode 100644
index 000000000..05f9e162a
--- /dev/null
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/qhybrid/requests/fossil_hr/application/ApplicationsListRequest.java
@@ -0,0 +1,49 @@
+package nodomain.freeyourgadget.gadgetbridge.service.devices.qhybrid.requests.fossil_hr.application;
+
+import android.content.pm.ApplicationInfo;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.ArrayList;
+
+import nodomain.freeyourgadget.gadgetbridge.service.devices.qhybrid.adapter.fossil_hr.FossilHRWatchAdapter;
+import nodomain.freeyourgadget.gadgetbridge.service.devices.qhybrid.requests.fossil.file.FileLookupAndGetRequest;
+import nodomain.freeyourgadget.gadgetbridge.service.devices.qhybrid.file.FileHandle;
+import nodomain.freeyourgadget.gadgetbridge.service.devices.qhybrid.requests.fossil.file.FileLookupRequest.FILE_LOOKUP_ERROR;
+
+public class ApplicationsListRequest extends FileLookupAndGetRequest{
+    public ApplicationsListRequest(FossilHRWatchAdapter adapter) {
+        super(FileHandle.APP_CODE, adapter);
+    }
+
+    public void handleFileData(byte[] fileData){
+        ArrayList<ApplicationInformation> applicationInfos = new ArrayList<>();
+        ByteBuffer buffer = ByteBuffer.wrap(fileData);
+        buffer.order(ByteOrder.LITTLE_ENDIAN);
+        buffer.position(12);
+        while(buffer.remaining() > 4){
+            short packetLength = buffer.getShort();
+            buffer.get();
+            int nameLength = buffer.get() - 1; // cutting off null byte
+            byte[] nameBuffer = new byte[nameLength];
+            buffer.get(nameBuffer);
+            buffer.get(); // null byte
+            byte handle = buffer.get();
+            int hash = buffer.getInt();
+            String version = String.format(
+                    "%d.%d.%d.%d",
+                    buffer.get(), buffer.get(), buffer.get(), buffer.get()
+                    );
+            applicationInfos.add(new ApplicationInformation(
+                    new String(nameBuffer),
+                    version,
+                    hash,
+                    handle
+            ));
+        }
+        ((FossilHRWatchAdapter) getAdapter()).setInstalledApplications(applicationInfos);
+    }
+    public void handleFileLookupError(FILE_LOOKUP_ERROR error){
+
+    }
+}