# coding=utf-8

from django.db import models
from django.conf import settings
from apps.account.models import User
from apps.tenant.models import Tenant
from apps.tenant.area.models import Department
from apps.tenant.option.models import Option
from utils.exceptions import CustomError
from django.db import transaction

class Employee(models.Model):
    LEAVE_UNUSED = 1
    WORKING = 2
    DAY_OFF = 3
    LEAVE_OFFICE = 4
    STATUS_CHOICES = (
        (LEAVE_UNUSED, u'在职'),
        (WORKING, u'工作中'),
        (DAY_OFF, u'调休'),
        (LEAVE_OFFICE, u'离职'),
    )
    EMPLOYEE = 1
    VISITOR = 2
    TYPE_CHOICES = (
        (EMPLOYEE, u'职工'),
        (VISITOR, u'游客')
    )
    name = models.CharField(max_length=100, verbose_name=u"姓名")
    tel = models.CharField(max_length=50, verbose_name=u'电话')
    gender = models.PositiveSmallIntegerField(choices=settings.GENDER_CHOICES, verbose_name=u'性别', default=settings.MALE)
    status = models.PositiveSmallIntegerField(choices=STATUS_CHOICES, verbose_name=u'状态',default=LEAVE_UNUSED)
    user = models.OneToOneField(settings.AUTH_USER_MODEL, editable=False, related_name='employee',
                                on_delete=models.PROTECT, verbose_name=u'职工', null=True)
    position = models.ForeignKey(Option, verbose_name=u'职位', on_delete=models.PROTECT, null=True)
    department = models.ForeignKey(Department, verbose_name=u'部门', on_delete=models.PROTECT, null=True)
    create_user = models.ForeignKey(settings.AUTH_USER_MODEL, verbose_name=u"创建人", on_delete=models.PROTECT,
                                    editable=False, related_name='create_user',null=True)
    face = models.CharField(max_length=200, verbose_name=u'头像', null=True)
    baoxiu_count = models.IntegerField(verbose_name='报修次数', default=0)
    forbid_baoxiu = models.BooleanField(verbose_name='是否禁用报修', default=False)
    tenant = models.ForeignKey(Tenant, verbose_name=u'租户', editable=False, on_delete=models.PROTECT,null=True)
    type = models.PositiveSmallIntegerField(verbose_name=u'人员类型', choices=TYPE_CHOICES, default=VISITOR)

    class Meta:
        db_table = "employee"
        verbose_name = u"员工管理"
        ordering = ['-id']
        index_together = (
            'name',
            'tel',
        )
        default_permissions = ()
        permissions = [
            ('browse_employee', u'查看'),
            ('add_employee', u'添加'),
            ('delete_employee', u'删除'),
        ]

    @staticmethod
    def create_admin(tenant, username, password):
        user = User.objects.create_superuser_tenant(username, password)
        instance = Employee.objects.create(
            name=username,
            tel='',
            gender=settings.MALE,
            user=user,
            tenant=tenant,
            type=Employee.EMPLOYEE,
        )
        return instance

    @staticmethod
    def get_instance_by_id(id, tenant):
        try:
            id = int(id)
        except:
            raise CustomError('无效的employee_id')
        instance = Employee.objects.filter(pk=id, tenant=tenant).first()
        if not instance:
            raise CustomError('未找到对应的员工实例')
        return instance

    @staticmethod
    def getOrRegister(tenant, user):
        customer = Employee.objects.filter(tenant=tenant, user=user).first()
        if customer:
            return customer
        with transaction.atomic():
            customer = Employee.objects.create(user=user,type=Employee.VISITOR, tel=user.username, name=user.username, tenant=tenant)
        return customer