# coding=utf-8
"""同步日志表（仅总服务器 MySQL）。"""
from datetime import datetime

from sqlalchemy import Column, DateTime, ForeignKey, Index, Integer, String, Text
from sqlalchemy.orm import relationship
from sqlalchemy.sql import func

from dao.db import Base


class SyncLog(Base):
    __tablename__ = 'sync_logs'

    id = Column(Integer, primary_key=True, autoincrement=True, comment='主键ID')
    base_id = Column(
        Integer,
        ForeignKey('bases.id', ondelete='CASCADE'),
        nullable=False,
        comment='基地ID',
    )
    # 使用 String 而非原生 Enum，兼容 MySQL / SQLite
    sync_type = Column(String(20), nullable=False, comment='同步类型：upload / download')
    record_count = Column(Integer, nullable=False, default=0, server_default='0', comment='同步记录数')
    start_time = Column(
        DateTime,
        nullable=False,
        default=datetime.now,
        server_default=func.now(),
        comment='开始时间',
    )
    end_time = Column(DateTime, nullable=True, comment='结束时间')
    status = Column(String(20), nullable=False, default='success', server_default='success', comment='success / failed')
    error_msg = Column(Text, nullable=True, comment='错误信息')

    base = relationship('BaseInfo', back_populates='sync_logs')

    __table_args__ = (
        Index('idx_sync_logs_base_time', 'base_id', 'start_time'),
        Index('idx_sync_logs_status', 'status'),
    )

    def to_dict(self):
        return {
            'id': self.id,
            'base_id': self.base_id,
            'sync_type': self.sync_type,
            'record_count': self.record_count,
            'status': self.status,
            'error_msg': self.error_msg,
            'start_time': self.start_time.strftime('%Y-%m-%d %H:%M:%S') if self.start_time else None,
            'end_time': self.end_time.strftime('%Y-%m-%d %H:%M:%S') if self.end_time else None,
        }