Various small fixes for beacon exchanges

beacon/src/main/java/io/xpipe/beacon/BeaconConnection.java

@@ -1,5 +1,6 @@
 package io.xpipe.beacon;
 
+import io.xpipe.beacon.exchange.WriteStreamExchange;
 import io.xpipe.beacon.exchange.cli.StoreAddExchange;
 import io.xpipe.beacon.util.QuietDialogHandler;
 import io.xpipe.core.impl.InternalStreamStore;
@@ -174,13 +175,26 @@ public abstract class BeaconConnection implements AutoCloseable {
     }
 
     public InternalStreamStore createInternalStreamStore() {
+        return createInternalStreamStore(null);
+    }
+
+    public InternalStreamStore createInternalStreamStore(String name) {
         var store = new InternalStreamStore();
-        var addReq = StoreAddExchange.Request.builder().storeInput(store).name(store.getUuid().toString()).build();
+        var addReq = StoreAddExchange.Request.builder().storeInput(store).name(name != null ? name : store.getUuid().toString()).build();
         StoreAddExchange.Response addRes = performSimpleExchange(addReq);
         QuietDialogHandler.handle(addRes.getConfig(), this);
         return store;
     }
 
+    public void writeStream(InternalStreamStore s, InputStream in) {
+        writeStream(s.getUuid().toString(), in);
+    }
+
+    public void writeStream(String name, InputStream in) {
+        performOutputExchange(
+                WriteStreamExchange.Request.builder().name(name).build(), in::transferTo);
+    }
+
     private BeaconException unwrapException(Exception exception) {
         if (exception instanceof ServerException s) {
             return new BeaconException("An internal server error occurred", s);

beacon/src/main/java/io/xpipe/beacon/exchange/cli/RemoveStoreExchange.java

@@ -21,8 +21,6 @@ public class RemoveStoreExchange implements MessageExchange {
     public static class Request implements RequestMessage {
         @NonNull
         String storeName;
-
-        boolean removeUnderlying;
     }
 
     @Jacksonized

beacon/src/main/java/io/xpipe/beacon/exchange/cli/StoreProviderListExchange.java

@@ -10,6 +10,7 @@ import lombok.Value;
 import lombok.extern.jackson.Jacksonized;
 
 import java.util.List;
+import java.util.Map;
 
 public class StoreProviderListExchange implements MessageExchange {
 
@@ -28,6 +29,6 @@ public class StoreProviderListExchange implements MessageExchange {
     @Value
     public static class Response implements ResponseMessage {
         @NonNull
-        List<ProviderEntry> entries;
+        Map<String, List<ProviderEntry>> entries;
     }
 }

beacon/src/main/java/io/xpipe/beacon/exchange/cli/WriteExecuteExchange.java

@@ -30,10 +30,14 @@ public class WriteExecuteExchange implements MessageExchange {
 
         @NonNull
         UUID id;
+
+        String mode;
     }
 
     @Jacksonized
     @Builder
     @Value
-    public static class Response implements ResponseMessage {}
+    public static class Response implements ResponseMessage {
+        boolean hasBody;
+    }
 }

beacon/src/main/java/io/xpipe/beacon/exchange/cli/WritePreparationExchange.java

@@ -27,8 +27,9 @@ public class WritePreparationExchange implements MessageExchange {
     public static class Request implements RequestMessage {
         String type;
 
-        @NonNull
+        DataStore outputStore;
-        DataStore output;
+
+        DataSourceReference outputSource;
 
         @NonNull
         DataSourceReference source;
@@ -38,8 +39,6 @@ public class WritePreparationExchange implements MessageExchange {
     @Builder
     @Value
     public static class Response implements ResponseMessage {
-        boolean hasBody;
-
         @NonNull
         DialogReference config;
     }

core/src/main/java/io/xpipe/core/impl/FileNames.java

@@ -18,6 +18,18 @@ public class FileNames {
         return normalize(joined);
     }
 
+    public static boolean isAbsolute(String file) {
+        if (!file.contains("/") && !file.contains("\\")) {
+            return false;
+        }
+
+        if (!file.startsWith("/") && !file.startsWith("~") && !file.matches("^\\w:.*")) {
+            return false;
+        }
+
+        return true;
+    }
+
     public static String getParent(String file) {
         return file.substring(0, file.length() - getFileName(file).length() - 1);
     }

core/src/main/java/io/xpipe/core/impl/FileStore.java

@@ -64,6 +64,9 @@ public class FileStore extends JacksonizedValue implements FilenameStore, Stream
         if (file == null) {
             throw new IllegalStateException("File is missing");
         }
+        if (!FileNames.isAbsolute(file)) {
+            throw new IllegalStateException("File path is not absolute");
+        }
     }
 
     @Override

core/src/main/java/io/xpipe/core/source/WriteMode.java

@@ -14,28 +14,32 @@ public class WriteMode extends JacksonizedValue {
     public static void init(ModuleLayer layer) {
         if (ALL.size() == 0) {
             ALL.addAll(ServiceLoader.load(layer, WriteMode.class).stream()
-                               .map(p -> p.get())
+                    .map(p -> p.get())
-                               .toList());
+                    .toList());
         }
     }
 
     @JsonTypeName("replace")
-    public static final class Replace extends WriteMode {
+    public static final class Replace extends WriteMode {}
-    }
 
     @JsonTypeName("append")
-    public static final class Append extends WriteMode {
+    public static final class Append extends WriteMode {}
-    }
 
     @JsonTypeName("prepend")
-    public static final class Prepend extends WriteMode {
+    public static final class Prepend extends WriteMode {}
-    }
 
     public static final Replace REPLACE = new Replace();
     public static final Append APPEND = new Append();
     public static final Prepend PREPEND = new Prepend();
 
-    public final  String getId() {
+    public final String getId() {
         return getClass().getAnnotation(JsonTypeName.class).value();
     }
+
+    public static WriteMode byId(String id) {
+        return ALL.stream()
+                .filter(writeMode -> writeMode.getId().equalsIgnoreCase(id))
+                .findFirst()
+                .orElseThrow();
+    }
 }

extension/src/main/java/io/xpipe/extension/event/TrackEvent.java

@@ -112,13 +112,14 @@ public class TrackEvent {
         if (tags.size() > 0) {
             s.append(" {\n");
             for (var e : tags.entrySet()) {
-                var value = e.toString().contains("\n")
+                var valueString = e.getValue() != null ? e.getValue().toString() : "null";
+                var value = valueString.contains("\n")
                         ? "\n"
-                                + (e.toString()
+                                + (valueString.toString()
                                         .lines()
                                         .map(line -> "    | " + line)
                                         .collect(Collectors.joining("\n")))
-                        : e.toString();
+                        : valueString;
                 s.append("    ")
                         .append(e.getKey())
                         .append("=")