from django.db import models
from django.db.models.base import Model
import django.utils.timezone as timezone
from django.db.models.query import QuerySet
from apps.system.models import CommonAModel, CommonBModel, Organization, User, Dict, File
from utils.model import SoftModel, BaseModel
from simple_history.models import HistoricalRecords
from apps.mtm.models import Material, Step

class Good(CommonAModel):
    """
    物品
    """
    act_state_choices=(
        (0, '待执行'),
        (1, '进行中'),
        (2, '已完成')
    )
    number = models.CharField('物品编号', primary_key=True, null=True, blank=True, max_length=50)
    m_state = models.ForeignKey(Material, verbose_name='所属物料状态', on_delete=models.CASCADE)
    p_state = models.ForeignKey(Step, verbose_name='所在步骤', on_delete=models.CASCADE, null=True, blank=True)
    act_state = models.IntegerField('进行状态', default=0)


class GoodFlow(BaseModel):
    """
    物品流转日志
    """
    pass


class Vendor(CommonAModel):
    """
    供应商信息
    """
    
    name = models.CharField('供应商名称', max_length=50, unique=True)
    contact = models.CharField('联系人', max_length=20)
    contact_phone = models.CharField('联系电话', max_length=11, unique=True)
    address = models.CharField('地址', max_length=200, null=True, blank=True)
    description = models.CharField('描述', max_length=200, blank=True, null=True)
    material = models.CharField('供应的物料', max_length=200, blank=True, null=True)
    class Meta:
        verbose_name = '供应商信息'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.name