refactor: 命令基本完成

pkg/command/operators/delc.py

@@ -0,0 +1,62 @@
+from __future__ import annotations
+
+import typing
+import datetime
+
+from .. import operator, entities, cmdmgr, errors
+
+
+@operator.operator_class(
+    name="del",
+    help="删除当前会话的历史记录",
+    usage='!del <序号>\n!del all'
+)
+class DelOperator(operator.CommandOperator):
+
+    async def execute(
+        self,
+        context: entities.ExecuteContext
+    ) -> typing.AsyncGenerator[entities.CommandReturn, None]:
+        
+        if context.session.conversations:
+            delete_index = 0
+            if len(context.crt_params) > 0:
+                try:
+                    delete_index = int(context.crt_params[0])
+                except:
+                    yield entities.CommandReturn(error=errors.CommandOperationError('索引必须是整数'))
+                    return
+                
+            if delete_index < 0 or delete_index >= len(context.session.conversations):
+                yield entities.CommandReturn(error=errors.CommandOperationError('索引超出范围'))
+                return
+            
+            # 倒序
+            to_delete_index = len(context.session.conversations)-1-delete_index
+
+            if context.session.conversations[to_delete_index] == context.session.using_conversation:
+                context.session.using_conversation = None
+
+            del context.session.conversations[to_delete_index]
+
+            yield entities.CommandReturn(text=f"已删除对话: {delete_index}")
+        else:
+            yield entities.CommandReturn(error=errors.CommandOperationError('当前没有对话'))
+
+
+@operator.operator_class(
+    name="all",
+    help="删除此会话的所有历史记录",
+    parent_class=DelOperator
+)
+class DelAllOperator(operator.CommandOperator):
+
+    async def execute(
+        self,
+        context: entities.ExecuteContext
+    ) -> typing.AsyncGenerator[entities.CommandReturn, None]:
+
+        context.session.conversations = []
+        context.session.using_conversation = None
+
+        yield entities.CommandReturn(text="已删除所有对话")