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[signal-cli] / src / main / java / org / asamk / signal / commands / ReceiveCommand.java

diff --git a/src/main/java/org/asamk/signal/commands/ReceiveCommand.java b/src/main/java/org/asamk/signal/commands/ReceiveCommand.java
index 0095e758716e94aa5c4df989b1e5fe2710d90551..ab65f8377eeccf8fb1181f62ecffc9ceb38089f3 100644 (file)
--- a/src/main/java/org/asamk/signal/commands/ReceiveCommand.java
+++ b/src/main/java/org/asamk/signal/commands/ReceiveCommand.java
@@ -1,5 +1,7 @@
 package org.asamk.signal.commands;
 
+import com.fasterxml.jackson.core.type.TypeReference;
+
 import net.sourceforge.argparse4j.impl.Arguments;
 import net.sourceforge.argparse4j.inf.Namespace;
 import net.sourceforge.argparse4j.inf.Subparser;
@@ -8,8 +10,10 @@ import org.asamk.signal.OutputType;
 import org.asamk.signal.ReceiveMessageHandler;
 import org.asamk.signal.commands.exceptions.CommandException;
 import org.asamk.signal.commands.exceptions.IOErrorException;
+import org.asamk.signal.commands.exceptions.UserErrorException;
 import org.asamk.signal.json.JsonReceiveMessageHandler;
 import org.asamk.signal.manager.Manager;
+import org.asamk.signal.manager.api.AlreadyReceivingException;
 import org.asamk.signal.manager.api.ReceiveConfig;
 import org.asamk.signal.output.JsonWriter;
 import org.asamk.signal.output.OutputWriter;
@@ -19,10 +23,11 @@ import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.time.Duration;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;
 
-public class ReceiveCommand implements LocalCommand {
+public class ReceiveCommand implements LocalCommand, JsonRpcSingleCommand<ReceiveCommand.ReceiveParams> {
 
     private final static Logger logger = LoggerFactory.getLogger(ReceiveCommand.class);
 
@@ -76,6 +81,36 @@ public class ReceiveCommand implements LocalCommand {
             m.receiveMessages(Optional.ofNullable(duration), Optional.ofNullable(maxMessages), handler);
         } catch (IOException e) {
             throw new IOErrorException("Error while receiving messages: " + e.getMessage(), e);
+        } catch (AlreadyReceivingException e) {
+            throw new UserErrorException("Receive command cannot be used if messages are already being received.", e);
+        }
+    }
+
+    @Override
+    public TypeReference<ReceiveParams> getRequestType() {
+        return new TypeReference<>() {};
+    }
+
+    @Override
+    public void handleCommand(
+            final ReceiveParams request, final Manager m, final JsonWriter jsonWriter
+    ) throws CommandException {
+        final var timeout = request.timeout() == null ? 3.0 : request.timeout();
+        final var maxMessagesRaw = request.maxMessages() == null ? -1 : request.maxMessages();
+
+        try {
+            final var messages = new ArrayList<>();
+            final var handler = new JsonReceiveMessageHandler(m, messages::add);
+            final var duration = timeout < 0 ? null : Duration.ofMillis((long) (timeout * 1000));
+            final var maxMessages = maxMessagesRaw < 0 ? null : maxMessagesRaw;
+            m.receiveMessages(Optional.ofNullable(duration), Optional.ofNullable(maxMessages), handler);
+            jsonWriter.write(messages);
+        } catch (IOException e) {
+            throw new IOErrorException("Error while receiving messages: " + e.getMessage(), e);
+        } catch (AlreadyReceivingException e) {
+            throw new UserErrorException("Receive command cannot be used if messages are already being received.", e);
         }
     }
+
+    record ReceiveParams(Double timeout, Integer maxMessages) {}
 }