Fix the issue of sequence action

.gitignore

@@ -162,4 +162,5 @@ cython_debug/
 
 logs
 .env
-scripts
+scripts
+.vscode

polymind/core/action.py

@@ -7,14 +7,14 @@
 
 class BaseAction(BaseModel, ABC):
     """BaseAction is the base class of the action.
-    An action is an object that can leverage tools (an LLM is considered a tool) to perform a specific task.
+    An action is a stateful object that can leverage tools (an LLM is considered a tool) to perform a specific task.
 
     In most cases, an action is a logically unit of to fulfill an atomic task.
     But sometimes, a complex atomic task can be divided into multiple sub-actions.
     """
 
     action_name: str
-    tools: Dict[str, BaseTool]
+    tool: BaseTool
 
     async def __call__(self, input: Message) -> Message:
         """Makes the instance callable, delegating to the execute method.
@@ -78,29 +78,29 @@ async def _execute(self, input: Message) -> Message:
         Returns:
             Message: The result of the composite action carried in a message.
         """
+        message = input
         self._update_context()
-        next_action = self._get_next_action(input)
-        while next_action:
-            message = await next_action(input)
+        action = self._get_next_action(message)
+        while action:
+            message = await action(message)
             self._update_context()
-            next_action = self._get_next_action(input)
+            action = self._get_next_action(message)
         return message
 
 
 class SequentialAction(CompositeAction):
 
     actions: List[BaseAction] = Field(default_factory=list)
 
-    def __init__(
-        self, action_name: str, tools: Dict[str, BaseTool], actions: List[BaseAction]
-    ):
-        super().__init__(action_name=action_name, tools=tools)
+    def __init__(self, action_name: str, tool: BaseTool, actions: List[BaseAction]):
+        super().__init__(action_name=action_name, tool=tool)
         self.actions = actions
 
     def _update_context(self) -> None:
         if not bool(self.context.content):
             self.context = Message(content={"idx": 0})
-        self.context.content["idx"] += 1
+        else:
+            self.context.content["idx"] += 1
 
     def _get_next_action(self, input: Message) -> BaseAction:
         if self.context.content["idx"] < len(self.actions):

tests/polymind/core/test_action.py

@@ -5,6 +5,15 @@
 import pytest
 from polymind.core.action import BaseAction, SequentialAction
 from polymind.core.message import Message
+from polymind.core.tool import BaseTool
+
+
+class MockTool(BaseTool):
+    async def _execute(self, input: Message) -> Message:
+        content = input.content.copy()
+        tool_name = self.tool_name
+        content.setdefault("tools_executed", []).append(tool_name)
+        return Message(content=content)
 
 
 class MockAction(BaseAction):
@@ -19,19 +28,28 @@ async def _execute(self, input: Message) -> Message:
 class TestSequentialAction:
     async def test_sequential_action_execution(self):
         # Create mock actions with different names
-        action1 = MockAction(action_name="Action1", tools={})
-        action2 = MockAction(action_name="Action2", tools={})
+        actions = []
+        num_actions = 5
+        for i in range(num_actions):
+            action = MockAction(
+                action_name=f"Action{i}", tool=MockTool(tool_name=f"Tool{i}")
+            )
+            actions.append(action)
 
         # Initialize SequentialAction with the mock actions
         sequential_action = SequentialAction(
-            action_name="test_seq_action", tools={}, actions=[action1, action2]
+            action_name="test_seq_action",
+            tool=MockTool(tool_name="Primary"),
+            actions=actions,
         )
 
         input_message = Message(content={})
         result_message = await sequential_action(input_message)
 
-        # # Check if both actions were executed in the correct order
-        # assert result_message.content["actions_executed"] == ["Action1", "Action2"]
+        # Check if both actions were executed in the correct order
+        assert result_message.content.get("actions_executed", []) == [
+            "Action{i}".format(i=i) for i in range(num_actions)
+        ], result_message.content["actions_executed"]
 
-        # # Check if the context was updated correctly
-        # assert sequential_action.context.content["idx"] == 2
+        # Check if the context was updated correctly
+        assert sequential_action.context.content["idx"] == num_actions