重构工作流相关API，支持异步操作并引入异步数据库管理

app/db/models/workflow.py

@@ -1,9 +1,10 @@
 from datetime import datetime
 from typing import Optional
 
-from sqlalchemy import Column, Integer, JSON, Sequence, String, and_, or_
+from sqlalchemy import Column, Integer, JSON, Sequence, String, and_, or_, select
+from sqlalchemy.ext.asyncio import AsyncSession
 
-from app.db import Base, db_query, db_update
+from app.db import Base, db_query, db_update, async_db_query, async_db_update
 
 
 class Workflow(Base):
@@ -48,11 +49,23 @@ class Workflow(Base):
     def list(db):
         return db.query(Workflow).all()
 
+    @staticmethod
+    @async_db_query
+    async def async_list(db: AsyncSession):
+        result = await db.execute(select(Workflow))
+        return result.scalars().all()
+
     @staticmethod
     @db_query
     def get_enabled_workflows(db):
         return db.query(Workflow).filter(Workflow.state != 'P').all()
 
+    @staticmethod
+    @async_db_query
+    async def async_get_enabled_workflows(db: AsyncSession):
+        result = await db.execute(select(Workflow).where(Workflow.state != 'P'))
+        return result.scalars().all()
+
     @staticmethod
     @db_query
     def get_timer_triggered_workflows(db):
@@ -67,6 +80,21 @@ class Workflow(Base):
             )
         ).all()
 
+    @staticmethod
+    @async_db_query
+    async def async_get_timer_triggered_workflows(db: AsyncSession):
+        """异步获取定时触发的工作流"""
+        result = await db.execute(select(Workflow).where(
+            and_(
+                or_(
+                    Workflow.trigger_type == 'timer',
+                    not Workflow.trigger_type
+                ),
+                Workflow.state != 'P'
+            )
+        ))
+        return result.scalars().all()
+
     @staticmethod
     @db_query
     def get_event_triggered_workflows(db):
@@ -78,17 +106,42 @@ class Workflow(Base):
             )
         ).all()
 
+    @staticmethod
+    @async_db_query
+    async def async_get_event_triggered_workflows(db: AsyncSession):
+        """异步获取事件触发的工作流"""
+        result = await db.execute(select(Workflow).where(
+            and_(
+                Workflow.trigger_type == 'event',
+                Workflow.state != 'P'
+            )
+        ))
+        return result.scalars().all()
+
     @staticmethod
     @db_query
     def get_by_name(db, name: str):
         return db.query(Workflow).filter(Workflow.name == name).first()
 
+    @staticmethod
+    @async_db_query
+    async def async_get_by_name(db: AsyncSession, name: str):
+        result = await db.execute(select(Workflow).where(Workflow.name == name))
+        return result.scalars().first()
+
     @staticmethod
     @db_update
     def update_state(db, wid: int, state: str):
         db.query(Workflow).filter(Workflow.id == wid).update({"state": state})
         return True
 
+    @staticmethod
+    @async_db_update
+    async def async_update_state(db: AsyncSession, wid: int, state: str):
+        from sqlalchemy import update
+        await db.execute(update(Workflow).where(Workflow.id == wid).values(state=state))
+        return True
+
     @staticmethod
     @db_update
     def start(db, wid: int):
@@ -97,6 +150,13 @@ class Workflow(Base):
         })
         return True
 
+    @staticmethod
+    @async_db_update
+    async def async_start(db: AsyncSession, wid: int):
+        from sqlalchemy import update
+        await db.execute(update(Workflow).where(Workflow.id == wid).values(state='R'))
+        return True
+
     @staticmethod
     @db_update
     def fail(db, wid: int, result: str):
@@ -107,6 +167,19 @@ class Workflow(Base):
         })
         return True
 
+    @staticmethod
+    @async_db_update
+    async def async_fail(db: AsyncSession, wid: int, result: str):
+        from sqlalchemy import update
+        await db.execute(update(Workflow).where(
+            and_(Workflow.id == wid, Workflow.state != "P")
+        ).values(
+            state='F',
+            result=result,
+            last_time=datetime.now().strftime('%Y-%m-%d %H:%M:%S')
+        ))
+        return True
+
     @staticmethod
     @db_update
     def success(db, wid: int, result: Optional[str] = None):
@@ -118,6 +191,20 @@ class Workflow(Base):
         })
         return True
 
+    @staticmethod
+    @async_db_update
+    async def async_success(db: AsyncSession, wid: int, result: Optional[str] = None):
+        from sqlalchemy import update
+        await db.execute(update(Workflow).where(
+            and_(Workflow.id == wid, Workflow.state != "P")
+        ).values(
+            state='S',
+            result=result,
+            run_count=Workflow.run_count + 1,
+            last_time=datetime.now().strftime('%Y-%m-%d %H:%M:%S')
+        ))
+        return True
+
     @staticmethod
     @db_update
     def reset(db, wid: int, reset_count: Optional[bool] = False):
@@ -129,6 +216,18 @@ class Workflow(Base):
         })
         return True
 
+    @staticmethod
+    @async_db_update
+    async def async_reset(db: AsyncSession, wid: int, reset_count: Optional[bool] = False):
+        from sqlalchemy import update
+        await db.execute(update(Workflow).where(Workflow.id == wid).values(
+            state='W',
+            result=None,
+            current_action=None,
+            run_count=0 if reset_count else Workflow.run_count,
+        ))
+        return True
+
     @staticmethod
     @db_update
     def update_current_action(db, wid: int, action_id: str, context: dict):
@@ -137,3 +236,18 @@ class Workflow(Base):
             "context": context
         })
         return True
+
+    @staticmethod
+    @async_db_update
+    async def async_update_current_action(db: AsyncSession, wid: int, action_id: str, context: dict):
+        from sqlalchemy import update
+        # 先获取当前current_action
+        result = await db.execute(select(Workflow.current_action).where(Workflow.id == wid))
+        current_action = result.scalar()
+        new_current_action = current_action + f",{action_id}" if current_action else action_id
+        
+        await db.execute(update(Workflow).where(Workflow.id == wid).values(
+            current_action=new_current_action,
+            context=context
+        ))
+        return True