From 388799edf2adc9c3070a83e72f074e523629574f Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton@traccar.org>
Date: Wed, 21 Sep 2022 17:53:50 -0700
Subject: Refactor motion handling

---
 .../org/traccar/reports/common/ReportUtils.java    | 53 +++++++++++-----------
 1 file changed, 26 insertions(+), 27 deletions(-)

(limited to 'src/main/java/org/traccar/reports/common/ReportUtils.java')

diff --git a/src/main/java/org/traccar/reports/common/ReportUtils.java b/src/main/java/org/traccar/reports/common/ReportUtils.java
index 7fff46f66..2bca00df7 100644
--- a/src/main/java/org/traccar/reports/common/ReportUtils.java
+++ b/src/main/java/org/traccar/reports/common/ReportUtils.java
@@ -37,7 +37,6 @@ import org.traccar.helper.model.UserUtil;
 import org.traccar.model.BaseModel;
 import org.traccar.model.Device;
 import org.traccar.model.Driver;
-import org.traccar.model.Event;
 import org.traccar.model.Group;
 import org.traccar.model.Position;
 import org.traccar.model.User;
@@ -65,7 +64,6 @@ import java.util.Date;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Locale;
-import java.util.Map;
 import java.util.Objects;
 import java.util.stream.Collectors;
 
@@ -353,38 +351,39 @@ public class ReportUtils {
         if (!positions.isEmpty()) {
             boolean trips = reportClass.equals(TripReportItem.class);
             MotionEventHandler motionHandler = new MotionEventHandler(null, null, tripsConfig);
+
             DeviceState deviceState = new DeviceState();
             deviceState.setMotionState(isMoving(positions, 0, tripsConfig));
-            int startEventIndex = trips == deviceState.getMotionState() ? 0 : -1;
+
+            boolean detected = trips == deviceState.getMotionState();
+            int startEventIndex = detected ? 0 : -1;
             int startNoEventIndex = -1;
             for (int i = 0; i < positions.size(); i++) {
-                Map<Event, Position> event = motionHandler.updateMotionState(deviceState, positions.get(i),
-                        isMoving(positions, i, tripsConfig));
-                if (startEventIndex == -1
-                        && (trips != deviceState.getMotionState() && deviceState.getMotionPosition() != null
-                        || trips == deviceState.getMotionState() && event != null)) {
-                    startEventIndex = i;
-                    startNoEventIndex = -1;
-                } else if (trips != deviceState.getMotionState() && startEventIndex != -1
-                        && deviceState.getMotionPosition() == null && event == null) {
-                    startEventIndex = -1;
+                boolean motion = isMoving(positions, i, tripsConfig);
+                if (deviceState.getMotionState() != motion) {
+                    if (motion == trips) {
+                        startEventIndex = detected ? startEventIndex : i;
+                        startNoEventIndex = -1;
+                    } else {
+                        startNoEventIndex = i;
+                    }
                 }
-                if (startNoEventIndex == -1
-                        && (trips == deviceState.getMotionState() && deviceState.getMotionPosition() != null
-                        || trips != deviceState.getMotionState() && event != null)) {
-                    startNoEventIndex = i;
-                } else if (startNoEventIndex != -1 && deviceState.getMotionPosition() == null && event == null) {
-                    startNoEventIndex = -1;
-                }
-                if (startEventIndex != -1 && startNoEventIndex != -1 && event != null
-                        && trips != deviceState.getMotionState()) {
-                    result.add(calculateTripOrStop(
-                            device, positions, startEventIndex, startNoEventIndex, ignoreOdometer, reportClass));
-                    startEventIndex = -1;
+
+                if (motionHandler.updateMotionState(deviceState, positions.get(i), motion) != null) {
+                    if (motion == trips) {
+                        detected = true;
+                        startNoEventIndex = -1;
+                    } else if (startEventIndex >= 0 && startNoEventIndex >= 0) {
+                        result.add(calculateTripOrStop(
+                                device, positions, startEventIndex, startNoEventIndex, ignoreOdometer, reportClass));
+                        detected = false;
+                        startEventIndex = -1;
+                        startNoEventIndex = -1;
+                    }
                 }
             }
-            if (startEventIndex != -1 && (startNoEventIndex != -1 || !trips)) {
-                int endIndex = startNoEventIndex != -1 ? startNoEventIndex : positions.size() - 1;
+            if (startEventIndex >= 0 && startEventIndex < positions.size() - 1) {
+                int endIndex = startNoEventIndex >= 0 ? startNoEventIndex : positions.size() - 1;
                 result.add(calculateTripOrStop(
                         device, positions, startEventIndex, endIndex, ignoreOdometer, reportClass));
             }
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