[Gekidou] refactor clean notifications (#6566)

android/app/src/main/java/com/mattermost/rnbeta/NotificationsModule.java

@@ -0,0 +1,80 @@
+package com.mattermost.rnbeta;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.content.Context;
+import android.os.Bundle;
+import android.service.notification.StatusBarNotification;
+
+import androidx.annotation.NonNull;
+
+import com.facebook.react.bridge.Arguments;
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReactContextBaseJavaModule;
+import com.facebook.react.bridge.ReactMethod;
+import com.facebook.react.bridge.Promise;
+import com.facebook.react.bridge.WritableArray;
+import com.facebook.react.bridge.WritableMap;
+import com.mattermost.helpers.NotificationHelper;
+
+import java.util.Set;
+
+public class NotificationsModule extends ReactContextBaseJavaModule {
+    private static NotificationsModule instance;
+    private final MainApplication mApplication;
+
+    private NotificationsModule(MainApplication application, ReactApplicationContext reactContext) {
+        super(reactContext);
+        mApplication = application;
+    }
+
+    public static NotificationsModule getInstance(MainApplication application, ReactApplicationContext reactContext) {
+        if (instance == null) {
+            instance = new NotificationsModule(application, reactContext);
+        }
+
+        return instance;
+    }
+
+    @NonNull
+    @Override
+    public String getName() {
+        return "Notifications";
+    }
+
+    @ReactMethod
+    public void getDeliveredNotifications(final Promise promise) {
+        Context context = mApplication.getApplicationContext();
+        StatusBarNotification[] notifications = NotificationHelper.getDeliveredNotifications(context);
+        WritableArray result = Arguments.createArray();
+        for (StatusBarNotification sbn:notifications) {
+            WritableMap map = Arguments.createMap();
+            Notification n = sbn.getNotification();
+            Bundle bundle = n.extras;
+            Set<String> keys = bundle.keySet();
+            for (String key: keys) {
+                map.putString(key, bundle.getString(key));
+            }
+            result.pushMap(map);
+        }
+        promise.resolve(result);
+    }
+
+    @ReactMethod
+    public void removeChannelNotifications(String serverUrl, String channelId) {
+        Context context = mApplication.getApplicationContext();
+        NotificationHelper.removeChannelNotifications(context, serverUrl, channelId);
+    }
+
+    @ReactMethod
+    public void removeThreadNotifications(String serverUrl, String threadId) {
+        Context context = mApplication.getApplicationContext();
+        NotificationHelper.removeThreadNotifications(context, serverUrl, threadId);
+    }
+
+    @ReactMethod
+    public void removeServerNotifications(String serverUrl) {
+        Context context = mApplication.getApplicationContext();
+        NotificationHelper.removeServerNotifications(context, serverUrl);
+    }
+}