feat: 剪辑计划保存为模板 - API + Service + 11个单测 (#392)

apps/api/app/api/routes/edit_plans.py

@@ -24,7 +24,7 @@ from typing import Any, List, Optional
 from app.auth import AuthenticatedUser, get_current_user
 from app.dependencies import get_db_session, get_project_repository
 from app.schemas.generation_task import GenerationTaskResponse
-from app.services import EditPlanService
+from app.services import EditPlanService, EditTemplateService
 from fastapi import APIRouter, Depends, HTTPException, Query, Response, status
 from pydantic import BaseModel, Field
 from sqlalchemy.orm import Session
@@ -506,6 +506,84 @@ def copy_plan(
         current_user.user.id,
     )
     return _to_response(new_plan)
+# ── 保存为模板 ────────────────────────────────────────────────────────────────
+
+
+class SaveAsTemplateRequest(BaseModel):
+    """保存为模板请求体"""
+
+    name: str = Field(..., min_length=1, max_length=200, description="模板名称")
+    description: str = Field(default="", max_length=500, description="模板描述")
+    template_type: str = Field(default="custom", max_length=50, description="模板类型")
+    preview_url: str = Field(default="", max_length=500, description="预览图 URL")
+
+
+@router.post(
+    "/{plan_id}/save-as-template",
+    response_model=dict[str, Any],
+    summary="将剪辑计划保存为模板",
+    status_code=status.HTTP_201_CREATED,
+)
+def save_plan_as_template(
+    plan_id: str,
+    body: SaveAsTemplateRequest,
+    current_user: AuthenticatedUser = Depends(get_current_user),
+    db: Session = Depends(get_db_session),
+    project_repo=Depends(get_project_repository),
+) -> dict[str, Any]:
+    """将指定剪辑计划的配置和片段结构保存为一个新模板。
+
+    新模板会复制计划的所有片段配置（类型、时长、转场、文案等），
+    但不绑定具体素材，可重复用于创建新的剪辑计划。
+    """
+    # 校验计划存在性和项目权限
+    plan_service = EditPlanService(db)
+    plan = plan_service.get_plan(plan_id)
+    if plan is None:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail=f"剪辑计划不存在: {plan_id}",
+        )
+    if plan.project_id:
+        check_project_access(project_repo, current_user, plan.project_id)
+
+    template_service = EditTemplateService(db)
+    try:
+        result = template_service.save_plan_as_template(
+            plan_id=plan_id,
+            name=body.name,
+            description=body.description,
+            template_type=body.template_type,
+            preview_url=body.preview_url,
+        )
+    except ValueError as e:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail=str(e),
+        ) from e
+
+    template = result["template"]
+    clip_configs = result["clip_configs"]
+
+    logger.info(
+        "保存计划为模板: plan_id=%s template_id=%s name=%s by user=%s",
+        plan_id,
+        template.id,
+        body.name,
+        current_user.user.id,
+    )
+
+    return {
+        "id": template.id,
+        "name": template.name,
+        "description": template.description,
+        "template_type": template.template_type,
+        "editing_mode": template.editing_mode,
+        "preview_url": template.preview_url,
+        "status": template.status.value,
+        "clip_count": len(clip_configs),
+        "created_at": template.created_at.isoformat(),
+    }
 
 
 # ── Include sub-routers (拆分模块) ────────────────────────────────────────────