From bc7bfa0692f0c7a1c99607f4112eecb6a60b34d5 Mon Sep 17 00:00:00 2001
From: qzl <qzl@example.com>
Date: Sat, 28 Feb 2026 13:36:08 +0800
Subject: [PATCH] feat(chat): add ChatListItem models in chat feature

---
 .../chat/data/models/chat_list_item.dart      | 120 ++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 apps/lib/features/chat/data/models/chat_list_item.dart

diff --git a/apps/lib/features/chat/data/models/chat_list_item.dart b/apps/lib/features/chat/data/models/chat_list_item.dart
new file mode 100644
index 0000000..48d92ff
--- /dev/null
+++ b/apps/lib/features/chat/data/models/chat_list_item.dart
@@ -0,0 +1,120 @@
+import 'tool_result.dart';
+
+enum ChatItemType { message, toolCall, toolResult }
+
+enum MessageSender { user, ai }
+
+enum ToolCallStatus { pending, executing, completed, error }
+
+abstract class ChatListItem {
+  String get id;
+  DateTime get timestamp;
+  ChatItemType get type;
+  MessageSender get sender;
+}
+
+class TextMessageItem extends ChatListItem {
+  @override
+  final String id;
+  final String content;
+  @override
+  final DateTime timestamp;
+  @override
+  final MessageSender sender;
+  final bool isStreaming;
+
+  TextMessageItem({
+    required this.id,
+    required this.content,
+    required this.timestamp,
+    required this.sender,
+    this.isStreaming = false,
+  });
+
+  @override
+  ChatItemType get type => ChatItemType.message;
+
+  TextMessageItem copyWith({
+    String? id,
+    String? content,
+    DateTime? timestamp,
+    MessageSender? sender,
+    bool? isStreaming,
+  }) => TextMessageItem(
+    id: id ?? this.id,
+    content: content ?? this.content,
+    timestamp: timestamp ?? this.timestamp,
+    sender: sender ?? this.sender,
+    isStreaming: isStreaming ?? this.isStreaming,
+  );
+}
+
+class ToolCallItem extends ChatListItem {
+  @override
+  final String id;
+  final String callId;
+  final String toolName;
+  final Map<String, dynamic> args;
+  final ToolCallStatus status;
+  final String? errorMessage;
+  @override
+  final DateTime timestamp;
+  @override
+  final MessageSender sender;
+
+  ToolCallItem({
+    required this.id,
+    required this.callId,
+    required this.toolName,
+    required this.args,
+    required this.status,
+    this.errorMessage,
+    required this.timestamp,
+    required this.sender,
+  });
+
+  @override
+  ChatItemType get type => ChatItemType.toolCall;
+
+  ToolCallItem copyWith({
+    String? id,
+    String? callId,
+    String? toolName,
+    Map<String, dynamic>? args,
+    ToolCallStatus? status,
+    String? errorMessage,
+    DateTime? timestamp,
+    MessageSender? sender,
+  }) => ToolCallItem(
+    id: id ?? this.id,
+    callId: callId ?? this.callId,
+    toolName: toolName ?? this.toolName,
+    args: args ?? this.args,
+    status: status ?? this.status,
+    errorMessage: errorMessage ?? this.errorMessage,
+    timestamp: timestamp ?? this.timestamp,
+    sender: sender ?? this.sender,
+  );
+}
+
+class ToolResultItem extends ChatListItem {
+  @override
+  final String id;
+  final String callId;
+  final UiCard uiCard;
+  @override
+  final DateTime timestamp;
+  @override
+  final MessageSender sender;
+
+  ToolResultItem({
+    required this.id,
+    required this.callId,
+    required this.uiCard,
+    required this.timestamp,
+    required this.sender,
+  });
+
+  @override
+  ChatItemType get type => ChatItemType.toolResult;
+}