Use pattern matching switch cases

[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 bb7e9b732156c97d32823eecfbff496bf9debe84..228a05619441ab15ff4e6cd0875c1571922258cb 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;
@@ -19,9 +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);
 
@@ -37,9 +43,19 @@ public class ReceiveCommand implements LocalCommand {
                 .type(double.class)
                 .setDefault(3.0)
                 .help("Number of seconds to wait for new messages (negative values disable timeout)");
+        subparser.addArgument("--max-messages")
+                .type(int.class)
+                .setDefault(-1)
+                .help("Maximum number of messages to receive, before returning.");
         subparser.addArgument("--ignore-attachments")
                 .help("Don’t download attachments of received messages.")
                 .action(Arguments.storeTrue());
+        subparser.addArgument("--ignore-stories")
+                .help("Don’t receive story messages from the server.")
+                .action(Arguments.storeTrue());
+        subparser.addArgument("--send-read-receipts")
+                .help("Send read receipts for all incoming data messages (in addition to the default delivery receipts)")
+                .action(Arguments.storeTrue());
     }
 
     @Override
@@ -51,19 +67,52 @@ public class ReceiveCommand implements LocalCommand {
     public void handleCommand(
             final Namespace ns, final Manager m, final OutputWriter outputWriter
     ) throws CommandException {
-        double timeout = ns.getDouble("timeout");
-        boolean ignoreAttachments = Boolean.TRUE.equals(ns.getBoolean("ignore-attachments"));
-        m.setReceiveConfig(new ReceiveConfig(ignoreAttachments));
+        final var timeout = ns.getDouble("timeout");
+        final var maxMessagesRaw = ns.getInt("max-messages");
+        final var ignoreAttachments = Boolean.TRUE.equals(ns.getBoolean("ignore-attachments"));
+        final var ignoreStories = Boolean.TRUE.equals(ns.getBoolean("ignore-stories"));
+        final var sendReadReceipts = Boolean.TRUE.equals(ns.getBoolean("send-read-receipts"));
+        m.setReceiveConfig(new ReceiveConfig(ignoreAttachments, ignoreStories, sendReadReceipts));
         try {
-            final var handler = outputWriter instanceof JsonWriter ? new JsonReceiveMessageHandler(m,
-                    (JsonWriter) outputWriter) : new ReceiveMessageHandler(m, (PlainTextWriter) outputWriter);
-            if (timeout < 0) {
-                m.receiveMessages(handler);
-            } else {
-                m.receiveMessages(Duration.ofMillis((long) (timeout * 1000)), handler);
-            }
+            final var handler = switch (outputWriter) {
+                case JsonWriter writer -> new JsonReceiveMessageHandler(m, writer);
+                case PlainTextWriter writer -> new ReceiveMessageHandler(m, writer);
+            };
+            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);
         } 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);
+        }
+    }
+
+    public record ReceiveParams(Double timeout, Integer maxMessages) {}
 }