刘金宝
86 lines
3.9 KiB
Python
86 lines
3.9 KiB
Python
from sqlalchemy.orm import Session
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from app.core.exceptions import AppError
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from app.models.source_case import CaseBase
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from app.repositories.case_repository import CaseRepository
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from app.repositories.source_case_repository import SourceCaseRepository
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from app.schemas.case import CaseDetailResponse, CaseListItem, CaseListResponse, CasePatientInfo
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class CaseService:
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"""病例服务：基于 case_base 新表体系提供病例列表和训练入口详情。"""
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def __init__(self, db: Session) -> None:
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self.db = db
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self.repo = CaseRepository(db)
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self.source_repo = SourceCaseRepository(db)
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def list_cases(
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self,
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department_id: int | None = None,
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training_type: str | None = None,
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mode: str | None = None,
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) -> CaseListResponse:
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"""病例列表：从 case_base 读取已发布病例，并按模式匹配传统/教学互动扩展表。"""
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cases = self.repo.list_active_cases(department_id=department_id, training_type=training_type, mode=mode)
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return CaseListResponse(items=[self._to_list_item(case) for case in cases])
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def get_case_detail(self, case_id: int) -> CaseDetailResponse:
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"""病例详情：展示训练入口信息，不返回标准答案、隐藏病情和评分细则。"""
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case = self.repo.get_active_case(case_id)
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if not case:
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raise AppError("CASE_NOT_FOUND", "case not found or inactive", 404)
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order_items = self.repo.get_exam_items(case.id)
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return CaseDetailResponse(
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id=case.id,
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case_code=f"SRC_{case.id}",
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title=case.title,
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department=self.source_repo.get_department_name(case.department_id),
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difficulty=case.difficulty,
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patient=CasePatientInfo(
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name=None,
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age=case.patient_age,
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gender=case.patient_gender,
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occupation=None,
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),
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chief_complaint=case.chief_complaint,
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supported_training_type=self._training_type(case.case_type),
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supported_mode=self._supported_mode(case),
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has_teaching_video=self._has_video(case),
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has_knowledge_points=bool(case.knowledge_points),
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has_quiz=bool(case.teaching_case and case.teaching_case.discussion_questions),
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order_item_types=sorted({item.item_type for item in order_items}),
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)
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def _to_list_item(self, case: CaseBase) -> CaseListItem:
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"""病例卡片转换：把 case_base 映射为当前前端病例列表结构。"""
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return CaseListItem(
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id=case.id,
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case_code=f"SRC_{case.id}",
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department_id=case.department_id or 0,
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title=case.title,
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difficulty=case.difficulty,
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chief_complaint=case.chief_complaint,
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supported_training_type=self._training_type(case.case_type),
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supported_mode=self._supported_mode(case),
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has_teaching_video=self._has_video(case),
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has_knowledge_points=bool(case.knowledge_points),
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has_quiz=bool(case.teaching_case and case.teaching_case.discussion_questions),
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)
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@staticmethod
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def _supported_mode(case: CaseBase) -> str:
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"""模式标识：教学互动病例显示 interactive，其余显示 free_chat。"""
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return "interactive" if case.teaching_case else "free_chat"
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@staticmethod
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def _has_video(case: CaseBase) -> bool:
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"""资源标识：根据 source 表 multimodal_assets 判断是否存在视频资源。"""
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assets = case.multimodal_assets or []
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return any(isinstance(item, dict) and item.get("type") == "video" for item in assets)
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@staticmethod
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def _training_type(case_type: str) -> str:
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"""训练类别兼容：源库 case_type 不在当前枚举内时按诊断治疗训练处理。"""
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return case_type if case_type in {"case_analysis", "diagnosis_treatment", "consultation"} else "diagnosis_treatment"
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