init

.vscode/settings.json

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+{
+    "java.configuration.updateBuildConfiguration": "interactive"
+}

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>cz.jzitnik</groupId>
+    <artifactId>fit</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.garmin</groupId>
+            <artifactId>fit</artifactId>
+            <version>21.141.0</version>
+        </dependency>
+    </dependencies>
+
+
+</project>

src/main/java/cz/jzitnik/CustomFitListener.java

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+package cz.jzitnik;
+
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.Date;
+import java.util.List;
+import java.util.Scanner;
+
+import com.garmin.fit.*;
+
+class CustomFitListener implements MesgListener {
+    private List<Mesg> messages = new ArrayList<>();
+
+    @Override
+    public void onMesg(Mesg mesg) {
+        messages.add(mesg);
+    }
+
+    public void modifyData() {
+        for (int i = 0; i < messages.size(); i++) {
+            Mesg mesg = messages.get(i);
+            if (mesg.getNum() == MesgNum.EVENT) {
+                EventMesg eventMesg = new EventMesg(mesg);
+                if (eventMesg.getEventType() == EventType.STOP_ALL) {
+                    Scanner scanner = new Scanner(System.in);
+                    System.out.print("Rok: ");
+                    int year = Integer.parseInt(scanner.nextLine());
+
+                    System.out.print("Měsíc: ");
+                    int month = Integer.parseInt(scanner.nextLine()) - 1;
+
+                    System.out.print("Den: ");
+                    int day = Integer.parseInt(scanner.nextLine());
+
+                    System.out.print("Hodina: ");
+                    int hour = Integer.parseInt(scanner.nextLine());
+
+                    System.out.print("Minuta: ");
+                    int minute = Integer.parseInt(scanner.nextLine());
+
+                    System.out.print("Sekunda: ");
+                    int second = Integer.parseInt(scanner.nextLine());
+
+
+                    Calendar calendar = Calendar.getInstance();
+                    calendar.set(year, month, day, hour, minute, second);
+                    Date date = calendar.getTime();
+                    DateTime dateTime = new DateTime(date);
+                    eventMesg.setTimestamp(dateTime);
+                    messages.set(i, eventMesg);
+                }
+            }
+        }
+    }
+
+    public List<Mesg> getMessages() {
+        return messages;
+    }
+}

src/main/java/cz/jzitnik/Editor.java

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+package cz.jzitnik;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+
+import com.garmin.fit.*;
+import com.garmin.fit.Fit.ProtocolVersion;
+
+public class Editor {
+    public static void edit(String inputFilePath, String outputFilePath) throws IOException {
+        FileInputStream inputStream = new FileInputStream(inputFilePath);
+        Decode decode = new Decode();
+        MesgBroadcaster mesgBroadcaster = new MesgBroadcaster(decode);
+        CustomFitListener listener = new CustomFitListener();
+
+        mesgBroadcaster.addListener(listener);
+
+        decode.read(inputStream, mesgBroadcaster, mesgBroadcaster);
+
+        inputStream.close();
+
+        listener.modifyData();
+
+        FileEncoder fileEncoder = new FileEncoder(new java.io.File(outputFilePath), ProtocolVersion.V1_0);
+        for (Mesg mesg : listener.getMessages()) {
+            fileEncoder.write(mesg);
+        }
+        fileEncoder.close();
+
+        System.out.println("Soubor byl úspěšně upraven.");
+    }
+}

src/main/java/cz/jzitnik/Main.java

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+package cz.jzitnik;
+
+import java.io.IOException;
+
+import javax.swing.JFileChooser;
+
+public class Main {
+    public static void main(String[] args) throws IOException {
+
+        JFileChooser fileChooser = new JFileChooser();
+
+        int returnValue = fileChooser.showOpenDialog(null);
+
+        if (returnValue != JFileChooser.APPROVE_OPTION) {
+            return;
+        }
+
+        java.io.File fromFile = fileChooser.getSelectedFile();
+
+        JFileChooser fileSaveChooser = new JFileChooser();
+        fileSaveChooser.setDialogType(JFileChooser.SAVE_DIALOG);
+
+        int returnValueSave = fileSaveChooser.showSaveDialog(null);
+
+        if (returnValueSave != JFileChooser.APPROVE_OPTION) {
+            return;
+        }
+
+
+        java.io.File toFile = fileSaveChooser.getSelectedFile();
+        Editor.edit(fromFile.getAbsolutePath(), toFile.getAbsolutePath());
+    }
+}