Replace Mixpanel with Firebase (Google) analytics (#535)

* replace mixpanel with firebase analytics
* add encrypted google-services.json file

src/main/java/io/lbry/browser/reactmodules/FirebaseModule.java

@@ -0,0 +1,80 @@
+package io.lbry.browser.reactmodules;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.widget.Toast;
+
+import com.facebook.react.bridge.ReactApplicationContext;
+import com.facebook.react.bridge.ReactContextBaseJavaModule;
+import com.facebook.react.bridge.ReactMethod;
+import com.facebook.react.bridge.ReadableMap;
+import com.google.firebase.analytics.FirebaseAnalytics;
+
+import io.lbry.browser.BuildConfig;
+
+import java.util.HashMap;
+import java.util.Map;
+import org.json.JSONObject;
+import org.json.JSONException;
+
+public class FirebaseModule extends ReactContextBaseJavaModule {
+
+    private Context context;
+
+    private FirebaseAnalytics firebaseAnalytics;
+
+    public FirebaseModule(ReactApplicationContext reactContext) {
+        super(reactContext);
+        this.context = reactContext;
+        this.firebaseAnalytics = FirebaseAnalytics.getInstance(context);
+    }
+
+    @Override
+    public String getName() {
+        return "Firebase";
+    }
+
+    @ReactMethod
+    public void track(String name, ReadableMap payload) {
+        Bundle bundle = new Bundle();
+        if (payload != null) {
+            HashMap<String, Object> payloadMap = payload.toHashMap();
+            for (Map.Entry<String, Object> entry : payloadMap.entrySet()) {
+                Object value = entry.getValue();
+                if (value != null) {
+                    bundle.putString(entry.getKey(), entry.getValue().toString());
+                }
+            }
+        }
+
+        if (firebaseAnalytics != null) {
+            firebaseAnalytics.logEvent(name, bundle);
+        }
+    }
+
+    @ReactMethod
+    public void logException(boolean fatal, String message, ReadableMap payload) {
+        Bundle bundle = new Bundle();
+        if (payload != null) {
+            HashMap<String, Object> payloadMap = payload.toHashMap();
+            for (Map.Entry<String, Object> entry : payloadMap.entrySet()) {
+                Object value = entry.getValue();
+                if (value != null) {
+                    bundle.putString(entry.getKey(), entry.getValue().toString());
+                }
+            }
+        }
+
+        if (firebaseAnalytics != null) {
+            firebaseAnalytics.logEvent(fatal ? "exception" : "warning", bundle);
+        }
+
+        if (fatal) {
+            Toast.makeText(context,
+                           "An application error occurred which has been automatically logged. " +
+                           "If you keep seeing this message, please provide feedback to the LBRY " +
+                           "team by emailing hello@lbry.io.",
+                            Toast.LENGTH_LONG).show();
+        }
+    }
+}