refactor: 命令基本完成

pkg/command/operators/list.py

@@ -0,0 +1,56 @@
+from __future__ import annotations
+
+import typing
+import datetime
+
+from .. import operator, entities, cmdmgr, errors
+
+
+@operator.operator_class(
+    name="list",
+    help="列出此会话中的所有历史对话",
+    usage='!list\n!list <页码>'
+)
+class ListOperator(operator.CommandOperator):
+
+    async def execute(
+        self,
+        context: entities.ExecuteContext
+    ) -> typing.AsyncGenerator[entities.CommandReturn, None]:
+        
+        page = 0
+
+        if len(context.crt_params) > 0:
+            try:
+                page = int(context.crt_params[0]-1)
+            except:
+                yield entities.CommandReturn(error=errors.CommandOperationError('页码应为整数'))
+                return
+
+        record_per_page = 10
+
+        content = ''
+
+        index = 0
+
+        using_conv_index = 0
+
+        for conv in context.session.conversations[::-1]:
+            time_str =  conv.create_time.strftime("%Y-%m-%d %H:%M:%S")
+
+            if conv == context.session.using_conversation:
+                using_conv_index = index
+
+            if index >= page * record_per_page and index < (page + 1) * record_per_page:
+                content += f"{index} {time_str}: {conv.messages[0].content}\n"
+            index += 1
+
+        if content == '':
+            content = '无'
+        else:
+            if context.session.using_conversation is None:
+                content += "\n当前处于新会话"
+            else:
+                content += f"\n当前会话: {using_conv_index} {context.session.using_conversation.create_time.strftime('%Y-%m-%d %H:%M:%S')}: {context.session.using_conversation.messages[0].content}"
+        
+        yield entities.CommandReturn(text=f"第 {page + 1} 页 (时间倒序):\n{content}")