1 files changed, 91 insertions, 9 deletions
diff --git a/src/main/java/derms/client/ResponderClient.java b/src/main/java/derms/client/ResponderClient.java
index c96436a..57bb132 100644
--- a/src/main/java/derms/client/ResponderClient.java
+++ b/src/main/java/derms/client/ResponderClient.java
@@ -1,21 +1,103 @@
 package derms.client;
 
+import derms.frontend.DERMSInterface;
+
 import java.net.MalformedURLException;
 
-class ResponderClient extends Client {
-    ResponderClient(String FEhost) throws MalformedURLException {
-        super(FEhost);
+public class ResponderClient extends CLI {
+    public static final String usage = "Usage: java derms.client.ResponderClientCLI <FE host>";
+
+    private final DERMSInterface server;
+
+    private ResponderClient(String FEhost) throws MalformedURLException {
+        server = Client.connectToServer(FEhost);
+
+        commands.put("add", new Add());
+        cmdDescriptions.add(new Description(
+                "add <resource ID> <resource type> <duration>",
+                "Add ad resource to the server"));
+
+        commands.put("remove", new Remove());
+        cmdDescriptions.add(new Description(
+                "remove <resource ID> <duration>",
+                "Decrease the duration of a resource. If duration is negative, the resource is removed entirely."));
+
+        commands.put("list", new List());
+        cmdDescriptions.add(new Description(
+                "list <resource name>",
+                "List available resources"));
     }
 
-    public String addResource(String resourceID, String resourceName, int duration) {
-        return server.addResource(resourceID, resourceName, duration);
+    public static void main(String[] args) {
+        if (args.length < 1) {
+            System.err.println(usage);
+            System.exit(1);
+        }
+
+        String FEhost = args[0];
+
+        try {
+            (new ResponderClient(FEhost)).run();
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private class Add implements Command {
+        @Override
+        public void exec(String[] args) {
+            if (args.length < 3)
+                System.out.println("invalid arguments for 'add'");
+            else
+                add(args[0], args[1], args[2]);
+        }
+
+        private void add(String resourceID, String resourceName, String durationStr) {
+            try {
+                int duration = Integer.parseInt(durationStr);
+                if (duration < 0) {
+                    throw new NumberFormatException("duration less than 0");
+                }
+                String response = server.addResource(resourceID, resourceName, duration);
+                System.out.println(response);
+            } catch (NumberFormatException e) {
+                System.out.println("invalid duration: " + durationStr);
+            }
+        }
     }
 
-    public String removeResource(String resourceID, int duration) {
-        return server.removeResource(resourceID, duration);
+    private class Remove implements Command {
+        @Override
+        public void exec(String[] args) {
+            if (args.length < 2)
+                System.out.println("invalid arguments for 'remove'");
+            else
+                remove(args[0], args[1]);
+        }
+
+        private void remove(String resourceID, String durationStr) {
+            try {
+                int duration = Integer.parseInt(durationStr);
+                String response = server.removeResource(resourceID, duration);
+                System.out.println(response);
+            } catch (NumberFormatException e) {
+                System.out.println("invalid duration: " + durationStr);
+            }
+        }
     }
 
-    public String listResourceAvailability(String resourceName) {
-        return server.listResourceAvailability(resourceName);
+    private class List implements Command {
+        @Override
+        public void exec(String[] args) {
+            if (args.length < 1)
+                System.out.println("invalid arguments for 'list'");
+            else
+                list(args[0]);
+        }
+
+        private void list(String resourceName) {
+            String response = server.listResourceAvailability(resourceName);
+            System.out.println(response);
+        }
     }
 }