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docs(conversation): bilingualize ConversationService comments (en/zh)
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@ -45,7 +45,13 @@ import java.util.stream.Collectors;
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import java.util.stream.Stream;
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/**
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* 会话管理服务
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* Conversation management service (会话管理服务).
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*
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* <p>Owns the full lifecycle of {@link ConversationEntity} and
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* {@link MessageEntity} rows — list / get-or-create / save / rename /
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* pin / delete / compress / approval-state reconciliation — and the
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* cascade of side-tables that hang off a conversation (approvals,
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* async tasks, channel sessions, attachment files, tool-result spill).
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*
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* @author MateClaw Team
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*/
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@ -79,18 +85,27 @@ public class ConversationService {
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}
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/**
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* 获取用户的会话列表（返回 VO，包含 agentName/agentIcon/status）
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* List conversations for a user, returned as VOs that include
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* {@code agentName} / {@code agentIcon} / {@code status}.
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*
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* <p>获取用户的会话列表（返回 VO，包含 agentName / agentIcon / status）。
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*/
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public List<ConversationVO> listConversations(String username) {
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return listConversations(username, null);
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}
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/**
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* 获取用户的会话列表（按工作区过滤）
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* Workspace-scoped variant of {@link #listConversations(String)}.
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*
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* <p>获取用户的会话列表（按工作区过滤）。
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*/
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public List<ConversationVO> listConversations(String username, Long workspaceId) {
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// 同时返回当前用户的会话 和 定时任务（system）产生的会话
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// 排除子会话（委派产生的子会话不在侧边栏显示）
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// Return both the current user's conversations AND those created by
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// scheduled jobs (owner=system). Child conversations spawned by
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// delegation are excluded — they don't belong in the sidebar.
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//
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// 同时返回当前用户的会话和定时任务（system）产生的会话；
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// 排除子会话（委派产生的子会话不在侧边栏显示）。
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LambdaQueryWrapper<ConversationEntity> wrapper = new LambdaQueryWrapper<ConversationEntity>()
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.in(ConversationEntity::getUsername, username, SYSTEM_USER)
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.isNull(ConversationEntity::getParentConversationId)
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@ -105,7 +120,8 @@ public class ConversationService {
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return List.of();
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}
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// 批量查询关联的 Agent 信息，避免 N+1 查询
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// Batch-load associated Agent rows to avoid N+1 queries.
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// 批量查询关联的 Agent 信息，避免 N+1 查询。
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List<Long> agentIds = entities.stream()
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.filter(e -> e.getAgentId() != null)
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.map(ConversationEntity::getAgentId)
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@ -117,7 +133,8 @@ public class ConversationService {
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: agentMapper.selectBatchIds(agentIds).stream()
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.collect(Collectors.toMap(AgentEntity::getId, a -> a));
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// 转换为 VO，补充 agentName/agentIcon/status
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// Map entities to VOs and enrich with agentName / agentIcon / status.
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// 转换为 VO，补充 agentName / agentIcon / status。
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return entities.stream()
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.map(entity -> {
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AgentEntity agent = entity.getAgentId() != null
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@ -131,7 +148,9 @@ public class ConversationService {
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}
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/**
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* 获取或创建会话（向后兼容，默认 workspace 1）
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* Get-or-create conversation (backward-compat overload, defaults to workspace 1).
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*
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* <p>获取或创建会话（向后兼容，默认 workspace 1）。
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*/
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@Transactional
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public ConversationEntity getOrCreateConversation(String conversationId, Long agentId, String username) {
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@ -139,7 +158,9 @@ public class ConversationService {
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}
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/**
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* 获取或创建会话（workspace 感知）
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* Workspace-aware get-or-create.
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*
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* <p>获取或创建会话（workspace 感知）。
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*/
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@Transactional
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public ConversationEntity getOrCreateConversation(String conversationId, Long agentId,
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@ -163,7 +184,10 @@ public class ConversationService {
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}
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/**
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* 创建子会话（委派场景），关联父会话 ID。
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* Create a child conversation (delegation scenario), linking it back to
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* its parent via {@code parentConversationId}.
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*
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* <p>创建子会话（委派场景），关联父会话 ID。
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*/
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@Transactional
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public ConversationEntity createChildConversation(String childConversationId, Long agentId,
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@ -177,11 +201,19 @@ public class ConversationService {
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}
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/**
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* 获取或创建共享渠道会话。
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* <p>
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* IM 渠道（飞书/钉钉/企微等）的会话需要在控制台中对登录用户可见，
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* 因此统一使用 system 作为 owner。对于历史上已写成发送者昵称/open_id 的会话，
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* 这里会自动修正为 system，避免控制台列表和消息接口因权限校验而不可见。
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* Get-or-create a shared channel conversation.
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*
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* <p>IM-channel (Feishu / DingTalk / WeCom / …) conversations must be
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* visible to every logged-in user in the admin console, so the owner is
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* uniformly set to {@code system}. For legacy rows whose owner was
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* historically written as a sender nickname / {@code open_id}, this
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* method silently rewrites it to {@code system} on read — otherwise the
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* console list and message endpoints would 403 those rows.
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*
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* <p>获取或创建共享渠道会话。IM 渠道（飞书 / 钉钉 / 企微等）的会话需要在控制台中
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* 对登录用户可见，因此统一使用 {@code system} 作为 owner。对于历史上已写成发送者
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* 昵称 / open_id 的会话，这里会自动修正为 {@code system}，避免控制台列表和
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* 消息接口因权限校验而不可见。
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*/
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@Transactional
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public ConversationEntity getOrCreateSharedConversation(String conversationId, Long agentId) {
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@ -189,11 +221,14 @@ public class ConversationService {
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}
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/**
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* 获取或创建共享渠道会话（workspace 感知）。
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* Workspace-aware get-or-create for shared channel conversations.
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*
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* <p>Delegates to the 5-arg overload with {@code null} model defaults —
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* preserves the legacy behavior for any caller that doesn't have an
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* agent-level model to inherit from.
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*
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* <p>获取或创建共享渠道会话（workspace 感知）。委托到 5 参重载，model 默认值传
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* {@code null}，保留对不需要继承 agent 模型的调用方的旧行为。
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*/
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@Transactional
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public ConversationEntity getOrCreateSharedConversation(String conversationId, Long agentId, Long workspaceId) {
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@ -245,13 +280,14 @@ public class ConversationService {
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try {
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conversationMapper.insert(conv);
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} catch (org.springframework.dao.DuplicateKeyException e) {
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// 并发插入：另一个线程已创建，回退到查询
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// Concurrent insert: another thread won the race — re-query
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// and fall through to the owner-correction block below.
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// 并发插入：另一个线程已创建，回退到查询；继续走下面的 owner 修正逻辑。
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conv = conversationMapper.selectOne(new LambdaQueryWrapper<ConversationEntity>()
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.eq(ConversationEntity::getConversationId, conversationId));
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if (conv == null) {
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throw new IllegalStateException("Conversation vanished after duplicate key: " + conversationId, e);
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}
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// 继续走下面的 owner 修正逻辑
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}
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}
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@ -284,7 +320,10 @@ public class ConversationService {
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}
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/**
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* 保存消息并更新会话统计
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* Persist a message and update the conversation's aggregate counters
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* ({@code messageCount}, {@code lastActiveTime}, {@code lastMessage}).
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*
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* <p>保存消息并更新会话统计。
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*/
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@Transactional
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public MessageEntity saveMessage(String conversationId, String role, String content) {
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@ -327,21 +366,26 @@ public class ConversationService {
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message.setCompletionTokens(completionTokens);
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message.setRuntimeModel(runtimeModel);
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message.setRuntimeProvider(runtimeProvider);
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message.setMetadata(metadata != null ? metadata : "{}"); // 初始化为空对象
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message.setMetadata(metadata != null ? metadata : "{}"); // Initialize as empty JSON object / 初始化为空对象
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messageMapper.insert(message);
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// 更新会话信息
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// Update aggregate counters on the parent conversation row.
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// 更新会话信息（消息计数、最后活跃时间、最后一条摘要）。
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ConversationEntity conv = conversationMapper.selectOne(new LambdaQueryWrapper<ConversationEntity>()
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.eq(ConversationEntity::getConversationId, conversationId));
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if (conv != null) {
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conv.setMessageCount(conv.getMessageCount() + 1);
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conv.setLastActiveTime(LocalDateTime.now());
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String summary = summarizeMessage(content, parts);
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// 用第一条用户消息作为会话标题
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// Derive the conversation title from the first user message
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// (only when the title is still the default "新对话").
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// 用第一条用户消息作为会话标题。
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if ("user".equals(role) && "新对话".equals(conv.getTitle())) {
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conv.setTitle(summary.length() > 20 ? summary.substring(0, 20) + "..." : summary);
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}
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// 保存最后一条 AI 回复摘要
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// Keep a short preview of the latest assistant reply for the
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// sidebar / list view (last_message column).
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// 保存最后一条 AI 回复摘要。
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if ("assistant".equals(role)) {
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conv.setLastMessage(summary.length() > 50 ? summary.substring(0, 50) + "..." : summary);
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}
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@ -351,7 +395,9 @@ public class ConversationService {
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}
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/**
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* 更新消息的元数据（toolCalls, plan, currentPhase 等）
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* Update a message's metadata JSON (toolCalls, plan, currentPhase, …).
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*
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* <p>更新消息的元数据（toolCalls / plan / currentPhase 等）。
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*/
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@Transactional
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public void updateMessageMetadata(Long messageId, String metadata) {
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@ -362,7 +408,9 @@ public class ConversationService {
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}
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/**
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* 重命名会话
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* Rename a conversation.
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*
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* <p>重命名会话。
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*/
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@Transactional
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public void renameConversation(String conversationId, String title) {
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@ -388,7 +436,9 @@ public class ConversationService {
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}
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/**
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* 更新会话的流状态（running / idle）
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* Update a conversation's stream status ({@code running} / {@code idle}).
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*
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* <p>更新会话的流状态（running / idle）。
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*/
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@Transactional
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public void updateStreamStatus(String conversationId, String streamStatus) {
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@ -451,7 +501,10 @@ public class ConversationService {
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}
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/**
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* 获取会话最后一条消息内容（用于 rate limit 防护等场景）
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* Get the latest message preview text for a conversation — used by
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* rate-limit guards and similar duplicate-detection paths.
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*
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* <p>获取会话最后一条消息内容（用于 rate limit 防护等场景）。
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*/
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public String getLastMessage(String conversationId) {
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ConversationEntity conv = conversationMapper.selectOne(new LambdaQueryWrapper<ConversationEntity>()
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@ -460,7 +513,9 @@ public class ConversationService {
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}
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/**
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* 获取会话的消息数量
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* Get a conversation's message count.
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*
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* <p>获取会话的消息数量。
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*/
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public int getMessageCount(String conversationId) {
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ConversationEntity conv = conversationMapper.selectOne(new LambdaQueryWrapper<ConversationEntity>()
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@ -469,7 +524,9 @@ public class ConversationService {
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}
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/**
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* 获取会话的消息历史
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* Load the full message history for a conversation in chronological order.
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*
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* <p>获取会话的消息历史。
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*/
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public List<MessageEntity> listMessages(String conversationId) {
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return messageMapper.selectList(new LambdaQueryWrapper<MessageEntity>()
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@ -503,8 +560,12 @@ public class ConversationService {
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}
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/**
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* 加载最近 N 条消息（倒序取出后翻转为正序）。
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* 利用复合索引 (conversation_id, create_time) 高效分页。
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* Load the most recent N messages — pulled DESC then reversed to ASC.
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* Uses the composite index {@code (conversation_id, create_time)} for
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* efficient tail pagination.
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*
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* <p>加载最近 N 条消息（倒序取出后翻转为正序）；利用复合索引
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* {@code (conversation_id, create_time)} 高效分页。
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*/
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public List<MessageEntity> listRecentMessages(String conversationId, int lastN) {
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List<MessageEntity> recent = messageMapper.selectList(
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@ -518,7 +579,11 @@ public class ConversationService {
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}
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/**
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* 分页加载指定 ID 之前的消息（用于前端上拉加载更早消息）。
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* Load a page of messages older than a given id — used by the frontend
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* pull-up infinite-scroll. Results are returned DESC; the caller is
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* responsible for reversing if it needs ASC.
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*
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* <p>分页加载指定 ID 之前的消息（用于前端上拉加载更早消息）；
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* 返回倒序结果，调用方需自行 reverse。
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*/
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public List<MessageEntity> listMessagesBefore(String conversationId, Long beforeId, int limit) {
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@ -534,7 +599,9 @@ public class ConversationService {
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}
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/**
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* 查询会话消息总数。
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* Count the total number of messages in a conversation.
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*
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* <p>查询会话消息总数。
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*/
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public long countMessages(String conversationId) {
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return messageMapper.selectCount(
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@ -748,7 +815,10 @@ public class ConversationService {
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}
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/**
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* 清空会话消息（同时清理附件文件）
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* Wipe all messages in a conversation and reset its aggregate counters,
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* also cleaning any attachment files those messages produced.
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*
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* <p>清空会话消息（同时清理附件文件）。
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*/
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@Transactional
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public void clearMessages(String conversationId) {
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@ -898,9 +968,13 @@ public class ConversationService {
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}
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/**
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* 删除指定会话中所有审批占位 assistant 消息
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* <p>
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* 在 replay 前调用，确保 LLM 上下文中不包含任何审批相关文本。
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* Remove all approval-placeholder assistant messages from a conversation.
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*
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* <p>Called before replay so the LLM context contains no approval-related
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* stub text that could confuse the next turn.
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*
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* <p>删除指定会话中所有审批占位 assistant 消息。在 replay 前调用，
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* 确保 LLM 上下文中不包含任何审批相关文本。
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*/
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/**
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* Reconcile persisted assistant-message state when one or more pending approvals
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@ -1124,7 +1198,9 @@ public class ConversationService {
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}
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/**
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* 检查会话是否存在
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* Check whether a conversation row exists.
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*
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* <p>检查会话是否存在。
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*/
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public boolean conversationExists(String conversationId) {
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return conversationMapper.selectCount(
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@ -1133,8 +1209,12 @@ public class ConversationService {
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}
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/**
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* 校验用户是否拥有该会话。
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* 定时任务产生的会话（username=system）对所有登录用户可见。
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* Check whether a user owns the conversation, treating system-owned
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* rows (e.g. from scheduled jobs / IM channels) as visible to every
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* authenticated user.
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*
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* <p>校验用户是否拥有该会话。定时任务产生的会话（username = system）
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* 对所有登录用户可见。
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*/
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public boolean isConversationOwner(String conversationId, String username) {
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ConversationEntity conv = conversationMapper.selectOne(
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@ -1147,7 +1227,9 @@ public class ConversationService {
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}
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/**
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* 获取会话的持久化流状态
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* Get the persisted stream status for a conversation.
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*
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* <p>获取会话的持久化流状态。
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*/
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public String getStreamStatus(String conversationId) {
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ConversationEntity conv = conversationMapper.selectOne(
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