"""
执行记录模型
"""
from sqlalchemy import Column, String, Text, Integer, DateTime, JSON, ForeignKey, func
from sqlalchemy.dialects.mysql import CHAR
from sqlalchemy.orm import relationship
from app.core.database import Base
import uuid


class Execution(Base):
    """执行记录表"""
    __tablename__ = "executions"

    id = Column(CHAR(36), primary_key=True, default=lambda: str(uuid.uuid4()), comment="执行ID")
    agent_id = Column(CHAR(36), ForeignKey("agents.id"), nullable=True, comment="智能体ID")
    workflow_id = Column(CHAR(36), ForeignKey("workflows.id"), nullable=True, comment="工作流ID")
    input_data = Column(JSON, comment="输入数据")
    output_data = Column(JSON, comment="输出数据")
    status = Column(String(20), nullable=False, comment="状态: pending/running/completed/failed")
    error_message = Column(Text, comment="错误信息")
    execution_time = Column(Integer, comment="执行时间(ms)")
    task_id = Column(String(100), comment="Celery任务ID")
    created_at = Column(DateTime, default=func.now(), comment="创建时间")

    # 关系
    agent = relationship("Agent", backref="executions")
    workflow = relationship("Workflow", backref="executions")

    def __repr__(self):
        return f"<Execution(id={self.id}, status={self.status})>"