From 3aa0729fba832e13da2fd0a6a1c600636fa235a9 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton@traccar.org>
Date: Tue, 14 Nov 2023 07:35:45 -0800
Subject: Prefer used fuel attribute

---
 .../java/org/traccar/handler/DistanceHandler.java   | 16 ++++++----------
 .../org/traccar/reports/common/ReportUtils.java     | 21 ++++++++-------------
 2 files changed, 14 insertions(+), 23 deletions(-)

(limited to 'src/main/java')

diff --git a/src/main/java/org/traccar/handler/DistanceHandler.java b/src/main/java/org/traccar/handler/DistanceHandler.java
index 6bb774a15..db8c73779 100644
--- a/src/main/java/org/traccar/handler/DistanceHandler.java
+++ b/src/main/java/org/traccar/handler/DistanceHandler.java
@@ -17,6 +17,8 @@
 package org.traccar.handler;
 
 import io.netty.channel.ChannelHandler;
+import jakarta.inject.Inject;
+import jakarta.inject.Singleton;
 import org.traccar.BaseDataHandler;
 import org.traccar.config.Config;
 import org.traccar.config.Keys;
@@ -24,11 +26,6 @@ import org.traccar.helper.DistanceCalculator;
 import org.traccar.model.Position;
 import org.traccar.session.cache.CacheManager;
 
-import jakarta.inject.Inject;
-import jakarta.inject.Singleton;
-import java.math.BigDecimal;
-import java.math.RoundingMode;
-
 @Singleton
 @ChannelHandler.Sharable
 public class DistanceHandler extends BaseDataHandler {
@@ -54,8 +51,7 @@ public class DistanceHandler extends BaseDataHandler {
         if (position.hasAttribute(Position.KEY_DISTANCE)) {
             distance = position.getDouble(Position.KEY_DISTANCE);
         }
-        double totalDistance = 0.0;
-
+        double totalDistance;
         Position last = cacheManager.getPosition(position.getDeviceId());
         if (last != null) {
             totalDistance = last.getDouble(Position.KEY_TOTAL_DISTANCE);
@@ -63,7 +59,6 @@ public class DistanceHandler extends BaseDataHandler {
                 distance = DistanceCalculator.distance(
                         position.getLatitude(), position.getLongitude(),
                         last.getLatitude(), last.getLongitude());
-                distance = BigDecimal.valueOf(distance).setScale(2, RoundingMode.HALF_EVEN).doubleValue();
             }
             if (filter && last.getLatitude() != 0 && last.getLongitude() != 0) {
                 boolean satisfiesMin = minError == 0 || distance > minError;
@@ -75,10 +70,11 @@ public class DistanceHandler extends BaseDataHandler {
                     distance = 0;
                 }
             }
+        } else {
+            totalDistance = 0.0;
         }
         position.set(Position.KEY_DISTANCE, distance);
-        totalDistance = BigDecimal.valueOf(totalDistance + distance).setScale(2, RoundingMode.HALF_EVEN).doubleValue();
-        position.set(Position.KEY_TOTAL_DISTANCE, totalDistance);
+        position.set(Position.KEY_TOTAL_DISTANCE, totalDistance + distance);
 
         return position;
     }
diff --git a/src/main/java/org/traccar/reports/common/ReportUtils.java b/src/main/java/org/traccar/reports/common/ReportUtils.java
index 43db82708..3b8e84887 100644
--- a/src/main/java/org/traccar/reports/common/ReportUtils.java
+++ b/src/main/java/org/traccar/reports/common/ReportUtils.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 - 2022 Anton Tananaev (anton@traccar.org)
+ * Copyright 2016 - 2023 Anton Tananaev (anton@traccar.org)
  * Copyright 2016 - 2017 Andrey Kunitsyn (andrey@traccar.org)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,6 +16,8 @@
  */
 package org.traccar.reports.common;
 
+import jakarta.annotation.Nullable;
+import jakarta.inject.Inject;
 import org.apache.velocity.app.VelocityEngine;
 import org.apache.velocity.tools.generic.DateTool;
 import org.apache.velocity.tools.generic.NumberTool;
@@ -52,13 +54,9 @@ import org.traccar.storage.query.Condition;
 import org.traccar.storage.query.Order;
 import org.traccar.storage.query.Request;
 
-import jakarta.annotation.Nullable;
-import jakarta.inject.Inject;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
-import java.math.BigDecimal;
-import java.math.RoundingMode;
 import java.time.Duration;
 import java.util.ArrayList;
 import java.util.Date;
@@ -102,14 +100,11 @@ public class ReportUtils {
         }
     }
 
-    public double calculateFuel(Position firstPosition, Position lastPosition) {
-
-        if (firstPosition.getAttributes().get(Position.KEY_FUEL_LEVEL) != null
-                && lastPosition.getAttributes().get(Position.KEY_FUEL_LEVEL) != null) {
-
-            BigDecimal value = BigDecimal.valueOf(firstPosition.getDouble(Position.KEY_FUEL_LEVEL)
-                    - lastPosition.getDouble(Position.KEY_FUEL_LEVEL));
-            return value.setScale(1, RoundingMode.HALF_EVEN).doubleValue();
+    public double calculateFuel(Position first, Position last) {
+        if (first.hasAttribute(Position.KEY_FUEL_USED) && last.hasAttribute(Position.KEY_FUEL_USED)) {
+            return last.getDouble(Position.KEY_FUEL_USED) - first.getDouble(Position.KEY_FUEL_USED);
+        } else if (first.hasAttribute(Position.KEY_FUEL_LEVEL) && last.hasAttribute(Position.KEY_FUEL_LEVEL)) {
+            return first.getDouble(Position.KEY_FUEL_LEVEL) - last.getDouble(Position.KEY_FUEL_LEVEL);
         }
         return 0;
     }
-- 
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