from django.db import models
from utils.base_model import BaseModel
from apps.workspace.models import City as CityModel, Workspace as WorkspaceModel
from apps.cuser.models import CuserRole as CuserRoleModel
from django.core.exceptions import ValidationError
from utils.validations.mobile import normalize_mobile
# Create your models here.


class ShiveAshenaei(BaseModel):
    name = models.CharField(max_length=15, null=False, blank=False)
    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)

    def __str__(self):
        return str(self.name)


class ResponsibleGroup(BaseModel):
    name = models.CharField(max_length=20, null=False, blank=False)
    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)

    def __str__(self):
        return str(self.name)


class CustomerResponsible(BaseModel):
    responsible_group = models.ForeignKey(ResponsibleGroup, on_delete=models.CASCADE, null=False, blank=False, related_name='customer_responsible')
    cuser_role = models.ForeignKey(CuserRoleModel, on_delete=models.CASCADE, null=False, blank=False)
    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)

    def __str__(self):
        return str(self.responsible_group)


class CustomerGroupType(BaseModel):
    name = models.CharField(max_length=10, null=False, blank=False)
    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)

    def __str__(self):
        return str(self.name)


class CustomerGroup(BaseModel):
    name = models.CharField(max_length=15, null=False, blank=False)
    group_type = models.ForeignKey(CustomerGroupType, on_delete=models.SET_NULL, null=True, blank=True)
    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)

    def __str__(self):
        return str(self.name)


class Customer(BaseModel):
    name_family = models.CharField(max_length=100, null=False, blank=False)
    mobile = models.PositiveBigIntegerField(null=True, blank=True)
    phone = models.PositiveBigIntegerField(null=True, blank=True)
    address = models.CharField(max_length=100, null=True, blank=True)
    city = models.ForeignKey(CityModel, on_delete=models.SET_NULL, null=True, blank=True)
    shive_ashenaei = models.ForeignKey(ShiveAshenaei, on_delete=models.SET_NULL, null=True, blank=True)
    responsible_group = models.ForeignKey(ResponsibleGroup, on_delete=models.SET_NULL, null=True, blank=True)
    cuser_role = models.ForeignKey(CuserRoleModel, on_delete=models.SET_NULL, null=True, blank=True)
    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)

    class Meta:
        ordering = ['-created_at']
        constraints = [
            models.UniqueConstraint(fields=['sys_ws', 'mobile'], name='customer_workspace_mobile_unique'),
        ]

    def __str__(self):
        return str(self.name_family)

    def clean(self):
        super().clean()
        if self.mobile is not None:
            self.mobile = normalize_mobile(self.mobile)
            if type(self).objects.filter(sys_ws_id=self.sys_ws_id, mobile=self.mobile).exclude(pk=self.pk).exists():
                raise ValidationError({"mobile": "مشتری با این شماره موبایل در این فضای کاری قبلاً ثبت شده است."})
        if self.cuser_role and not self.cuser_role.role_type.role_name_en == 'workspace_customer':
            raise ValidationError("cuser_role type must be customer")
        if self.cuser_role and (self.cuser_role.sys_ws_id != self.sys_ws_id or not self.cuser_role.cuser_id
                               or self.cuser_role.cuser.mobile != self.mobile):
            raise ValidationError({'cuser_role': 'حساب پنل باید متعلق به همین شماره موبایل و فضای کاری باشد.'})


class CustomerNote(BaseModel):
    customer = models.ForeignKey(Customer, on_delete=models.CASCADE, null=False, blank=False)
    cuser_role = models.ForeignKey(CuserRoleModel, on_delete=models.CASCADE, null=False, blank=False)
    desc = models.CharField(max_length=200, null=False, blank=False)
    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)

    class Meta:
        ordering = ['-created_at']

    def __str__(self):
        return str(self.customer.name_family)