from sqlalchemy import Column, Integer, String

from commons.models.mixin.operation_track import OperationTrackMixin
from core.extensions import db


class Material(db.Model, OperationTrackMixin):
    id = Column('ID', String(128), primary_key=True)
    parent_id = Column('PARENT_ID', String(128))
    category_1 = Column('CATEGORY1', String(128), default='', comment='分类1')
    category_2 = Column('CATEGORY2', String(128), default='', comment='分类2')
    category_3 = Column('CATEGORY3', String(128), default='', comment='分类3')
    category_4 = Column('CATEGORY4', String(128), default='', comment='分类4')
    name = Column('NAME', String(128), default='', comment='名称')
    unit = Column('UNIT', String(128), default='', comment='单位')
    spec = Column('SPEC', String(128), default='', comment='规格')
    tax = Column('TAX', Integer, default=0, comment='税率（%）')
    is_builtin = Column('IS_BUILTIN', Integer, default=0, comment='是否初始内建类型（不允许删除）')
    type = Column('TYPE', Integer, default=0, comment='材料类别（主材、地材）')
    is_tree = Column('IS_TREE', Integer, default=0, comment='是否树')

    __tablename__ = 'MATERIAL'
    __table_args__ = (
        {'comment': '材料'},
    )

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

    @classmethod
    def get_by_key(cls, id):
        return cls.query.filter(cls.id == id).one_or_none()

    def upsert(self):
        result = self.get_by_key(self.id)
        if not result:
            session = db.session
            session.add(self)
            session.commit()
        else:
            session = db.session
            self.id = result.id
            session.add(result)
            session.commit()