from sqlalchemy.exc import SQLAlchemyError
from datetime import datetime

from app.models import EventSource, TaggingEvents, VerdictStatus

def create_tagging_event(db, **kwargs):
    """
    创建并提交TaggingEvents记录
    参数:
        db: SQLAlchemy数据库实例
        kwargs: 字段键值对，支持所有非主键字段
        
    返回: (success: bool, message: str, event: TaggingEvents)
    """
    # 1. 创建事件对象并设置属性
    event = TaggingEvents()
    
    # 2. 动态设置字段值
    valid_fields = {
        'bag_id', 'source', 'rule_version_id', 'reviewer_id', 'verdict',
        'level1_tag_id', 'level2_tag_id', 'level3_tag_id', 'level4_tag_id'
    }
    
    for field, value in kwargs.items():
        if field in valid_fields:
            setattr(event, field, value)
        # 自动处理特殊字段类型[1,4](@ref)
        elif field == 'ts_event' and isinstance(value, datetime):
            event.ts_event = value
    
    # 3. 枚举字段验证[1](@ref)
    if 'source' in kwargs and not isinstance(kwargs['source'], EventSource):
        return False, "source必须是EventSource枚举类型", None
        
    if 'verdict' in kwargs and not isinstance(kwargs['verdict'], VerdictStatus):
        return False, "verdict必须是VerdictStatus枚举类型", None
    
    # 4. 提交到数据库[2,4](@ref)
    try:
        db.session.add(event)
        db.session.commit()
        return True, "记录创建成功", event
    except SQLAlchemyError as e:
        db.session.rollback()
        # app.logger.error(f"数据库写入失败: {str(e)}")
        return False, f"数据库错误: {str(e)}", None
    except Exception as e:
        db.session.rollback()
        # app.logger.error(f"未知错误: {str(e)}")
        return False, f"系统错误: {str(e)}", None