Feat: new api listContexts/request is ready

Signed-off-by: Daniel Hu <[email protected]>

src/main/java/ai/devchat/devchat/ActionHandlerFactory.java

@@ -18,6 +18,7 @@ public class ActionHandlerFactory {
             put(DevChatActions.INSERT_CODE_REQUEST, InsertCodeRequestHandler.class);
             put(DevChatActions.REPLACE_FILE_CONTENT_REQUEST, ReplaceFileContentHandler.class);
             put(DevChatActions.VIEW_DIFF_REQUEST, ViewDiffRequestHandler.class);
+            put(DevChatActions.LIST_CONTEXTS_REQUEST, ListContextsRequestHandler.class);
         }
     };
 

src/main/java/ai/devchat/devchat/DevChatActions.java

@@ -19,4 +19,6 @@ public class DevChatActions {
     public static final String REPLACE_FILE_CONTENT_RESPONSE = "replaceFileContent/response";
     public static final String VIEW_DIFF_REQUEST = "viewDiff/request";
     public static final String VIEW_DIFF_RESPONSE = "viewDiff/response";
+    public static final String LIST_CONTEXTS_REQUEST = "listContexts/request";
+    public static final String LIST_CONTEXTS_RESPONSE = "listContexts/response";
 }

src/main/java/ai/devchat/devchat/handler/ListContextsRequestHandler.java

@@ -0,0 +1,59 @@
+package ai.devchat.devchat.handler;
+
+import ai.devchat.common.Log;
+import ai.devchat.devchat.ActionHandler;
+import ai.devchat.devchat.DevChatActionHandler;
+import ai.devchat.devchat.DevChatActions;
+
+import com.alibaba.fastjson.JSONObject;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class ListContextsRequestHandler implements ActionHandler {
+    private JSONObject metadata;
+    private JSONObject payload;
+    private final DevChatActionHandler devChatActionHandler;
+
+    public ListContextsRequestHandler(DevChatActionHandler devChatActionHandler) {
+        this.devChatActionHandler = devChatActionHandler;
+    }
+
+    @Override
+    public void executeAction() {
+        Log.info("Handling list context request");
+
+        String callbackFunc = metadata.getString("callback");
+
+        List<Map<String, String>> contextList = new ArrayList<>();
+        Map<String, String> context1 = new HashMap<>();
+        context1.put("command", "git diff -cached");
+        context1.put("description", "the staged changes since the last commit");
+
+        Map<String, String> context2 = new HashMap<>();
+        context2.put("command", "git diff HEAD");
+        context2.put("description", "all changes since the last commit");
+
+        contextList.add(context1);
+        contextList.add(context2);
+
+        devChatActionHandler.sendResponse(DevChatActions.LIST_CONTEXTS_RESPONSE, callbackFunc, (metadata, payload) -> {
+            metadata.put("status", "success");
+            metadata.put("error", "");
+
+            payload.put("contexts", contextList);
+        });
+    }
+
+    @Override
+    public void setMetadata(JSONObject metadata) {
+        this.metadata = metadata;
+    }
+
+    @Override
+    public void setPayload(JSONObject payload) {
+        this.payload = payload;
+    }
+}