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fix(it0_app): stop using systemPrompt as conversation title 

Voice sessions set systemPrompt to the voice-mode instruction string,
causing every voice conversation to display '你正在通过语音与用户实时对话。请…'
as its title in the chat history list.

Title derivation priority (highest to lowest):
  1. metadata.title  — explicit title saved by backend on first task
  2. metadata.voiceMode == true → '语音对话 M/D HH:mm'
  3. Fallback → '对话 M/D HH:mm' based on session createdAt
This commit is contained in:
hailin 2026-03-04 02:32:08 -08:00
parent f0634c2e49
commit 9546dab93d
1 changed files with 18 additions and 5 deletions
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23
it0_app/lib/features/chat/presentation/widgets/conversation_drawer.dart
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@ -22,7 +22,11 @@ class SessionSummary {
factory SessionSummary.fromJson(Map<String, dynamic> json) {
return SessionSummary(
id: json['id'] as String,
title: json['systemPrompt'] as String? ?? _generateTitle(json),
// NOTE: Never use systemPrompt as title — it's an internal engine instruction
// (voice sessions set systemPrompt to the voice-mode rules string, which caused
// every voice conversation to appear as "你正在通过语音与用户实时对话。请…").
// Always derive the display title from metadata or the session creation time.
title: _generateTitle(json),
status: json['status'] as String? ?? 'active',
createdAt: DateTime.tryParse(json['createdAt'] as String? ?? '') ?? DateTime.now(),
updatedAt: DateTime.tryParse(json['updatedAt'] as String? ?? '') ?? DateTime.now(),
@ -30,12 +34,21 @@ class SessionSummary {
}
static String _generateTitle(Map<String, dynamic> json) {
// Use metadata or fallback to date-based title
final meta = json['metadata'] as Map<String, dynamic>?;
if (meta != null && meta['title'] != null) {
return meta['title'] as String;
}
// 1. Use the explicit title stored by the backend on first task (text sessions)
final storedTitle = meta?['title'] as String?;
if (storedTitle != null && storedTitle.isNotEmpty) return storedTitle;
final createdAt = DateTime.tryParse(json['createdAt'] as String? ?? '');
// 2. Voice sessions: prefix with 🎙 and show time
final isVoice = meta?['voiceMode'] as bool? ?? false;
if (isVoice && createdAt != null) {
return '语音对话 ${createdAt.month}/${createdAt.day} ${createdAt.hour}:${createdAt.minute.toString().padLeft(2, '0')}';
}
// 3. Fallback: date-based title
if (createdAt != null) {
return '对话 ${createdAt.month}/${createdAt.day} ${createdAt.hour}:${createdAt.minute.toString().padLeft(2, '0')}';
}