# coding=utf-8
"""待人工审核表（仅总服务器 MySQL；未知菜上报后人工确认）。"""
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 PendingApproval(Base):
    __tablename__ = 'pending_approval'

    id = Column(Integer, primary_key=True, autoincrement=True, comment='主键ID')
    image_url = Column(String(512), nullable=False, comment='图片 URL 或路径')
    feature_blob = Column(Text, nullable=False, comment='临时特征 Base64(float32)')
    source_base_id = Column(
        Integer,
        ForeignKey('bases.id', ondelete='CASCADE'),
        nullable=False,
        comment='来源基地',
    )
    suggested_category = Column(String(100), nullable=True, comment='系统建议菜名')
    # pending / approved / rejected —— String 兼容双库
    status = Column(String(20), nullable=False, default='pending', server_default='pending', comment='审核状态')
    submit_time = Column(
        DateTime,
        nullable=False,
        default=datetime.now,
        server_default=func.now(),
        comment='提交时间',
    )
    approve_time = Column(DateTime, nullable=True, comment='审核时间')
    approved_by = Column(String(50), nullable=True, comment='审核人')

    source_base = relationship(
        'BaseInfo',
        back_populates='pending_approvals',
        foreign_keys=[source_base_id],
    )

    __table_args__ = (
        Index('idx_pending_status', 'status'),
        Index('idx_pending_base', 'source_base_id'),
        Index('idx_pending_submit_time', 'submit_time'),
    )

    def to_dict(self):
        return {
            'id': self.id,
            'image_url': self.image_url,
            'feature_blob': self.feature_blob,
            'source_base_id': self.source_base_id,
            'suggested_category': self.suggested_category,
            'status': self.status,
            'approved_by': self.approved_by,
            'submit_time': self.submit_time.strftime('%Y-%m-%d %H:%M:%S') if self.submit_time else None,
            'approve_time': self.approve_time.strftime('%Y-%m-%d %H:%M:%S') if self.approve_time else None,
        }