feat: add class share drafts

ai_knowledge_base_v2/apps/backend/app/api/admin_records.py

@@ -16,13 +16,14 @@ from app.core.dependencies import get_current_admin
 from app.core.responses import api_success
 from app.models.admin import Admin
 from app.models.chat import ChatMessage, ChatSession, TopicSession
-from app.models.growth import TeacherHelpCard, TopicSummary
+from app.models.growth import ShareDraft, TeacherHelpCard, TopicSummary
 from app.models.logs import AiRequestLog, OperationLog
 from app.models.user import User
 from app.api.pagination import page_result
 from app.services.question_insight_service import QuestionInsightService
 from app.services.growth_profile_service import topic_dict, topic_summary_dict
 from app.services.help_card_service import help_card_dict
+from app.services.share_draft_service import share_draft_dict
 
 router = APIRouter()
 
@@ -141,6 +142,7 @@ def chat_detail(
     topics = _topic_rows(db, session_id)
     topic_ids = [item["id"] for item in topics]
     help_cards = []
+    share_drafts = []
     if topic_ids:
         help_cards = list(
             db.scalars(
@@ -149,6 +151,13 @@ def chat_detail(
                 .order_by(TeacherHelpCard.created_at.desc(), TeacherHelpCard.id.desc())
             )
         )
+        share_drafts = list(
+            db.scalars(
+                select(ShareDraft)
+                .where(ShareDraft.topic_session_id.in_(topic_ids))
+                .order_by(ShareDraft.created_at.desc(), ShareDraft.id.desc())
+            )
+        )
     return api_success(
         {
             "session": _chat_row_dict(session, user),
@@ -162,6 +171,7 @@ def chat_detail(
             "aiLogs": [_ai_log_dict(item, include_prompt=True) for item in ai_logs],
             "topics": topics,
             "helpCards": [help_card_dict(item) for item in help_cards],
+            "shareDrafts": [share_draft_dict(item) for item in share_drafts],
         }
     )
 

ai_knowledge_base_v2/apps/backend/app/api/chat.py

@@ -33,6 +33,7 @@ from app.services.chat_stream_service import ChatStreamService
 from app.services.growth_profile_service import GrowthProfileService
 from app.services.help_card_service import HelpCardService, help_card_dict
 from app.services.reasoning_policy_service import ReasoningPolicyService
+from app.services.share_draft_service import ShareDraftService, share_draft_dict
 
 router = APIRouter()
 logger = logging.getLogger(__name__)
@@ -126,6 +127,35 @@ def mark_help_card_copied(
     return api_success(help_card_dict(HelpCardService.mark_copied(db, user=current_user, card_id=card_id)))
 
 
+@router.post("/session/{session_id}/share-draft")
+def generate_share_draft(
+    session_id: int,
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+) -> dict:
+    session = ChatService._get_user_session(db, current_user, session_id)
+    draft = ShareDraftService.generate_for_session(db, user=current_user, session=session)
+    return api_success(share_draft_dict(draft))
+
+
+@router.get("/share-draft/list")
+def list_share_drafts(
+    limit: int = Query(default=20, ge=1, le=50),
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+) -> dict:
+    return api_success([share_draft_dict(draft) for draft in ShareDraftService.list_user_drafts(db, user=current_user, limit=limit)])
+
+
+@router.post("/share-draft/{draft_id}/copied")
+def mark_share_draft_copied(
+    draft_id: int,
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+) -> dict:
+    return api_success(share_draft_dict(ShareDraftService.mark_copied(db, user=current_user, draft_id=draft_id)))
+
+
 @router.post("/completions")
 def completions(
     payload: ChatCompletionRequest,

ai_knowledge_base_v2/apps/backend/app/models/__init__.py

@@ -3,7 +3,7 @@ from app.models.ai_config import ModelConfig, Prompt, SystemConfig
 from app.models.base import Base
 from app.models.chat import ChatMessage, ChatSession, TopicSession
 from app.models.entitlement import EntitlementPlan, UserEntitlement, UserEntitlementLog
-from app.models.growth import GrowthProfileRevision, TeacherHelpCard, TopicSummary, UserGrowthProfile
+from app.models.growth import GrowthProfileRevision, ShareDraft, TeacherHelpCard, TopicSummary, UserGrowthProfile
 from app.models.knowledge import (
     HumanAttentionHistory,
     HumanAttentionRecord,
@@ -55,6 +55,7 @@ __all__ = [
     "Prompt",
     "Role",
     "SystemConfig",
+    "ShareDraft",
     "TeacherHelpCard",
     "User",
     "UserEntitlement",

ai_knowledge_base_v2/apps/backend/app/models/growth.py

@@ -82,3 +82,21 @@ class TeacherHelpCard(Base):
     copied: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
     copied_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
     created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), nullable=False)
+
+
+class ShareDraft(Base):
+    __tablename__ = "sys_share_draft"
+    __table_args__ = (
+        Index("ix_sys_share_draft_user_created", "user_id", "created_at"),
+        Index("ix_sys_share_draft_topic_created", "topic_session_id", "created_at"),
+    )
+
+    id: Mapped[int] = mapped_column(PRIMARY_KEY_TYPE, primary_key=True, autoincrement=True)
+    user_id: Mapped[int] = mapped_column(ForeignKey("sys_user.id"), index=True, nullable=False)
+    topic_session_id: Mapped[int] = mapped_column(ForeignKey("sys_topic_session.id"), index=True, nullable=False)
+    summary_id: Mapped[int | None] = mapped_column(BigInteger, index=True, nullable=True)
+    content: Mapped[str] = mapped_column(Text, nullable=False)
+    source: Mapped[str] = mapped_column(String(30), default="topic_summary", nullable=False)
+    copied: Mapped[int] = mapped_column(Integer, default=0, nullable=False)
+    copied_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
+    created_at: Mapped[datetime] = mapped_column(DateTime, server_default=func.now(), nullable=False)

ai_knowledge_base_v2/apps/backend/app/services/share_draft_service.py

@@ -0,0 +1,113 @@
+from __future__ import annotations
+
+from datetime import UTC, datetime
+
+from fastapi import HTTPException, status
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from app.models.chat import ChatSession, TopicSession
+from app.models.growth import ShareDraft, TopicSummary
+from app.models.user import User
+from app.services.entitlement_service import EntitlementService
+from app.services.growth_profile_service import GrowthProfileService, topic_summary_dict
+
+
+class ShareDraftService:
+    @staticmethod
+    def generate_for_session(db: Session, *, user: User, session: ChatSession) -> ShareDraft:
+        entitlement = EntitlementService.active_entitlement(db, user)
+        if not entitlement.allow_share_draft:
+            raise HTTPException(status_code=status.HTTP_403_FORBIDDEN, detail="当前权益暂不支持生成班级分享稿")
+
+        topic = _latest_topic(db, user=user, session=session)
+        if topic is None:
+            raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="当前会话还没有可生成分享稿的主题")
+
+        summary = GrowthProfileService.generate_topic_summary(db, user=user, topic=topic)
+        draft = ShareDraft(
+            user_id=user.id,
+            topic_session_id=topic.id,
+            summary_id=summary.id,
+            content=_render_share_draft(topic=topic, summary=summary),
+            source="topic_summary",
+        )
+        topic.share_draft_generated = 1
+        db.add_all([topic, draft])
+        db.commit()
+        db.refresh(draft)
+        return draft
+
+    @staticmethod
+    def list_user_drafts(db: Session, *, user: User, limit: int = 20) -> list[ShareDraft]:
+        return list(
+            db.scalars(
+                select(ShareDraft)
+                .where(ShareDraft.user_id == user.id)
+                .order_by(ShareDraft.created_at.desc(), ShareDraft.id.desc())
+                .limit(limit)
+            )
+        )
+
+    @staticmethod
+    def mark_copied(db: Session, *, user: User, draft_id: int) -> ShareDraft:
+        draft = db.scalar(select(ShareDraft).where(ShareDraft.id == draft_id, ShareDraft.user_id == user.id))
+        if draft is None:
+            raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="分享稿不存在")
+        draft.copied = 1
+        draft.copied_at = _now()
+        db.add(draft)
+        db.commit()
+        db.refresh(draft)
+        return draft
+
+
+def share_draft_dict(draft: ShareDraft) -> dict:
+    return {
+        "id": draft.id,
+        "userId": draft.user_id,
+        "topicSessionId": draft.topic_session_id,
+        "summaryId": draft.summary_id,
+        "content": draft.content,
+        "source": draft.source,
+        "copied": bool(draft.copied),
+        "copiedAt": draft.copied_at,
+        "createdAt": draft.created_at,
+    }
+
+
+def _latest_topic(db: Session, *, user: User, session: ChatSession) -> TopicSession | None:
+    return db.scalar(
+        select(TopicSession)
+        .where(TopicSession.user_id == user.id, TopicSession.chat_session_id == session.id)
+        .order_by(TopicSession.updated_at.desc(), TopicSession.id.desc())
+        .limit(1)
+    )
+
+
+def _render_share_draft(*, topic: TopicSession, summary: TopicSummary) -> str:
+    data = topic_summary_dict(summary)
+    return (
+        "【实修分享稿草稿】\n"
+        "说明：这是根据我本次对话整理出的分享草稿，系统不会自动发送到任何群，"
+        "我会按真实情况删改后再决定是否发到班级群。\n\n"
+        "大家好，我想分享一下这次实修里看到的一点东西。\n\n"
+        "1. 我这次观察到的议题\n"
+        f"{topic.core_question or topic.title}\n\n"
+        "2. 我看见了什么\n"
+        f"{data.get('summary') or '（请用自己的话补充真实看见）'}\n\n"
+        "3. 我感受到的情绪和身体反应\n"
+        f"情绪：{data.get('emotions') or '（请补充）'}\n"
+        f"身体：{data.get('bodyFeelings') or '（请补充）'}\n\n"
+        "4. 我做了什么功课 / 准备继续做什么\n"
+        f"{data.get('recommendedHomework') or '（请补充）'}\n\n"
+        "5. 当下的一点变化\n"
+        f"{data.get('insights') or '（请补充真实变化，不需要夸大）'}\n\n"
+        "6. 我还在继续观察的方向\n"
+        f"{data.get('nextObservation') or '（请补充）'}\n\n"
+        "备注：这只是我的阶段性观察，不代表已经彻底解决，也不是建议别人照搬。"
+    )
+
+
+def _now() -> datetime:
+    return datetime.now(UTC).replace(tzinfo=None)