from django.db import models
import uuid
from django.db.models import JSONField

# Create your models here.

#====================================================================================
def generate_increment_code(model_class, prefix="CODE", padding=4, code_field="code"):
    """
    model_class: Model sẽ sinh mã (ví dụ Customer, Product,...)
    prefix: tiền tố (CUS, PRD...)
    padding: số lượng chữ số (0001, 0010...)
    code_field: tên trường lưu mã
    """
    last = model_class.objects.order_by('-id').first()
    next_id = (last.id + 1) if last else 1
    return f"{prefix}{next_id:0{padding}d}"


class AutoCodeModel(models.Model):
    code_prefix = "CODE"
    code_padding = 5
    class Meta:
        abstract = True

    def save(self, *args, **kwargs):
        if not self.code:
            self.code = generate_increment_code(
                model_class=self.__class__,
                prefix=self.code_prefix,
                padding=self.code_padding
            )
        super().save(*args, **kwargs)


class Money_Unit(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'money_unit'


class Block_Reason(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'block_reason'


class User_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'user_type'


class Auth_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'auth_status'


class Auth_Method(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'auth_method'


class Register_Method(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'register_method'


class Duration(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.TextField(null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'duration'


class Ownership_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'ownership_type'


class Transaction_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.TextField(null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'transaction_type'


class Transaction_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.TextField(null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'transaction_status'


class Project_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'project_status'


class Sale_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    color = models.CharField(max_length=20, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'sale_status'


class Product_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    color = models.CharField(max_length=20, null=True)
    index = models.IntegerField(null=True, default=1)
    sale_status = models.ForeignKey(Sale_Status, null=True, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'product_status'

class Customer_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'customer_type'


class Customer_Segment(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'customer_segment'


class Payment_Method(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'payment_method'


class Investor(models.Model):
    name = models.CharField(max_length=255)
    tax_code = models.CharField(max_length=20, null=False)
    address = models.TextField(null=False)
    phone = models.CharField(max_length=15, null=True)
    email = models.CharField(max_length=50, null=True)
    bank_account = models.CharField(max_length=20, null=True)
    bank_name = models.CharField(max_length=100, null=True)
    representative = models.CharField(max_length=100, null=True)
    website = models.URLField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'investor'


class Project(models.Model):
    code = models.CharField(max_length=20, unique=True)
    name = models.CharField(max_length=255)
    investor = models.ForeignKey(Investor, null=False, related_name='+', on_delete=models.PROTECT)
    status = models.ForeignKey(Project_Status, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'project'


class Zone_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'zone_type'


class Product_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'product_type'


class Land_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'land_type'


class Company_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'company_type'


class Direction(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'direction'


class Value_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'value_type'


class Discount_Method(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'discount_method'


class Discount_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    value = models.IntegerField()
    type = models.ForeignKey(Value_Type, null=False, related_name='+', on_delete=models.PROTECT)
    method = models.ForeignKey(Discount_Method, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'discount_type'


class Gift(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.TextField(null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'gift'


class Sale_Policy(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    deposit = models.DecimalField(max_digits=15, decimal_places=2)
    method = models.ForeignKey(Payment_Method, null=False, related_name='+', on_delete=models.PROTECT)
    enable = models.BooleanField(default=True)
    contract_allocation_percentage = models.IntegerField(null=True,blank=True,default=100)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'sale_policy'


class Payment_Plan(models.Model):
    policy = models.ForeignKey(Sale_Policy, null=False, related_name='+', on_delete=models.PROTECT)
    cycle = models.IntegerField()
    value = models.IntegerField()
    type = models.ForeignKey(Value_Type, null=False, related_name='+', on_delete=models.PROTECT)
    days = models.IntegerField()
    payment_note = models.TextField()
    due_note = models.TextField()
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)
  
    class Meta:
        db_table = 'payment_plan'
        unique_together = ('policy', 'cycle')


class User(models.Model):
    username = models.CharField(max_length=50, null=False, unique=True)
    password = models.CharField(max_length=100, null=False)
    email = models.CharField(max_length=100, null=True, unique=True)
    avatar = models.CharField(max_length=100, null=True)
    fullname = models.CharField(max_length=50, null=False)
    display_name = models.CharField(max_length=50, null=True)
    type = models.ForeignKey(User_Type, null=True, related_name='+', on_delete=models.PROTECT, default=1)
    blocked = models.BooleanField(default=False)
    block_reason = models.ForeignKey(Block_Reason, null=True, related_name='+', on_delete=models.PROTECT)
    blocked_by = models.PositiveIntegerField(null=True)
    last_login = models.DateTimeField(null=True)
    auth_method = models.ForeignKey(Auth_Method, null=False, related_name='+', on_delete=models.PROTECT)
    auth_status = models.ForeignKey(Auth_Status, null=False, related_name='+', on_delete=models.PROTECT)
    register_method = models.ForeignKey(Register_Method, null=False, related_name='+', on_delete=models.PROTECT)
    pin = models.CharField(max_length=100, null=True)
    is_admin = models.BooleanField(null=True, default=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'user'


class Token(models.Model):
    token = models.CharField(max_length=100, null=False, unique=True)
    fcmtoken = models.CharField(max_length=200, null=True)
    browser = models.TextField(null=False)
    browser_version = models.CharField(max_length=100, null=False)
    os = models.CharField(max_length=100, null=False)
    ip =  models.CharField(max_length=100, null=False)
    platform = models.CharField(max_length=100, null=False)
    expiry = models.BooleanField(default=False)
    city = models.CharField(max_length=100, null=True)
    region = models.CharField(max_length=100, null=True)
    country = models.CharField(max_length=100, null=True)
    loc = models.CharField(max_length=100, null=True)
    org = models.CharField(max_length=100, null=True)
    postal = models.CharField(max_length=100, null=True)
    timezone = models.CharField(max_length=100, null=True)
    user = models.ForeignKey(User, null=True, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'token'


class Setting_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'setting_type'


class Setting_Choice(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'setting_choice'


class Setting_Class(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'setting_class'


class Currency(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    rate = models.FloatField(null=False)
    decimal = models.IntegerField(null=False, default=0)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'currency'


class Bank(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'bank'


class User_Setting(models.Model):
    name = models.CharField(max_length=200, null=False, unique=True)
    detail = models.JSONField(null=False)
    user = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    type = models.ForeignKey(Setting_Type, null=False, related_name='+', on_delete=models.PROTECT)
    classify = models.ForeignKey(Setting_Class, null=False, related_name='+', on_delete=models.PROTECT)
    note = models.TextField(null=True)
    default = models.BooleanField(default=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)
    view = models.PositiveIntegerField(null=True)
    like = models.PositiveIntegerField(null=True)
    share = models.PositiveIntegerField(null=True)
    on_menu = models.BooleanField(default=False)
    my_menu = models.BooleanField(default=False)
    deleted = models.BooleanField(default=False)

    class Meta:
        db_table = 'user_setting'


class Filter_Choice(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'filter_choice'


class Color_Choice(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'color_choice'


class Data_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'data_type'


class Text_Align(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'text_align'


class Placement(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'placement'


class Color_Scheme(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'color_scheme'


class Text_Color(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'text_color'


class Filter_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'filter_type'


class Sort_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'sort_type'


class Table_Setting(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'table_setting'


class Share_Choice(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'share_choice'


class Menu_Choice(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'menu_choice'


class Lang_Choice(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'lang_choice'


class Common(models.Model):
    category = models.CharField(max_length=100, null=False)
    classify = models.CharField(max_length=100, null=False)
    code = models.CharField(max_length=100, null = False)
    vi = models.TextField(null=False)
    en = models.TextField(null=True)
    image = models.TextField(null=True)
    icon = models.TextField(null=True)
    link = models.TextField(null=True)
    detail = models.JSONField(null=True)
    index =  models.IntegerField(null=True, default=0)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    
    class Meta:
        db_table = 'common'
        unique_together = ('category', 'classify', 'code')


class System_Setting(models.Model):
    category = models.CharField(max_length=100, null=False)
    classify = models.CharField(max_length=100, null=False)
    code = models.CharField(max_length=100, null = False)
    vi = models.TextField(null=False)
    en = models.TextField(null=True)
    image = models.TextField(null=True)
    icon = models.TextField(null=True)
    link = models.TextField(null=True)
    detail = models.JSONField(null=True)
    detail_en = models.JSONField(null=True)
    index =  models.IntegerField(null=True, default=0)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    
    class Meta:
        db_table = 'system_setting'
        unique_together = ('category', 'classify', 'code')


class User_Auth(models.Model):
    user = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    code = models.CharField(max_length=30, null=False, unique=True)
    expiry = models.BooleanField(default=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True)

    class Meta:
        db_table = 'user_auth'


class Account_Recovery(models.Model):
    user = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    code = models.CharField(max_length=30, null=False, unique=True)
    expiry = models.BooleanField(default=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'account_recovery'


class File_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'file_type'


class Document_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'document_type'


class File(AutoCodeModel):
    code_prefix = "FILE"
    code_padding = 5
    code = models.CharField(max_length=20, null=True, unique=True)
    user = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    type = models.ForeignKey(File_Type, null=False, related_name='+', on_delete=models.PROTECT)
    doc_type = models.ForeignKey(Document_Type, null=True, related_name='+', on_delete=models.PROTECT)
    name = models.CharField(max_length=200, null=False)
    file = models.CharField(max_length=200, null=False)
    hashtag= models.CharField(max_length=200, null=True)
    size = models.IntegerField(null=False)
    caption = models.CharField(max_length=200, null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True)

    class Meta:
        db_table = 'file'


class Sex(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'sex'


class Legal_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'legal_type'


class Notification_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'notification_status'


class Approve_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    color = models.CharField(max_length=20, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'approve_status'


class Category(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'category'


class Display_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'display_status'


class Payment_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'payment_status'


class Dealer(AutoCodeModel):
    code_prefix = "DL"
    code_padding = 2
    code = models.CharField(max_length=20, null=True, unique=True)
    user = models.OneToOneField(User, null=True, related_name='dealer_profile', on_delete=models.SET_NULL)
    name = models.CharField(max_length=100, null=False)
    phone = models.CharField(max_length=20, null=True, db_index=True)
    email = models.CharField(max_length=50, null=True)
    address = models.CharField(max_length=255, null=True)
    sale_amount = models.DecimalField(max_digits=15, decimal_places=2,null=True)
    pay_sale = models.DecimalField(max_digits=15, decimal_places=2,null=True)
    commission_amount = models.DecimalField(max_digits=15, decimal_places=2,null=True)
    pay_commission = models.DecimalField(max_digits=15, decimal_places=2,null=True)
    commission_remain = models.DecimalField(max_digits=15, decimal_places=2,null=True)
    batch_date = models.DateTimeField(null=True)
    count_sale = models.IntegerField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'dealer'


class Cart(AutoCodeModel):
    code_prefix = "GH"
    code_padding = 3
    code = models.CharField(max_length=20, null=True, unique=True)
    name = models.CharField(max_length=255)
    dealer = models.ForeignKey(Dealer, null=True, related_name='+', on_delete=models.PROTECT)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta: 
        db_table = 'cart'


class Product(AutoCodeModel):
    code_prefix = "SP"
    code_padding = 5
    code = models.CharField(max_length=20, null=True, unique=True)
    land_lot_code = models.CharField(max_length=255)
    zone_code = models.CharField(max_length=255)
    trade_code = models.CharField(max_length=20, null=True)
    zone_type = models.ForeignKey(Zone_Type, null=False, related_name='+', on_delete=models.PROTECT)
    lot_area = models.DecimalField(max_digits=15, decimal_places=2)
    building_area = models.DecimalField(max_digits=15, decimal_places=2)
    total_built_area = models.DecimalField(max_digits=15, decimal_places=2)
    number_of_floors = models.IntegerField()
    land_lot_size = models.CharField(max_length=255)
    direction = models.ForeignKey(Direction, null=False, related_name='+', on_delete=models.PROTECT)
    villa_model = models.CharField(max_length=255, null=True)
    type = models.ForeignKey(Product_Type, null=False, related_name='+', on_delete=models.PROTECT)
    project = models.ForeignKey(Project, null=False, related_name='+', on_delete=models.PROTECT)
    status = models.ForeignKey(Product_Status, null=False, related_name='+', on_delete=models.PROTECT)
    cart = models.ForeignKey(Cart, null=True, related_name='prdcart', on_delete=models.PROTECT)
    dealer = models.ForeignKey(Dealer, null=True, related_name='+', on_delete=models.PROTECT)
    policy = models.ForeignKey(Sale_Policy, null=True, related_name='+', on_delete=models.PROTECT)
    note = models.TextField(null=True)
    origin_price = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    price_excluding_vat = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    product_type = models.CharField(max_length=255, null=True)
    template_name = models.CharField(max_length=255, null=True)
    link = models.UUIDField(default=uuid.uuid4, editable=False, unique=True, null=True)
    locked_until = models.DateTimeField(null=True)                          
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'product'


class Product_File(models.Model):
    product = models.ForeignKey(Product, null=False, related_name='prdfile', on_delete=models.PROTECT)
    file = models.ForeignKey(File, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'product_file'
        unique_together = ('product', 'file')


class Project_File(models.Model):
    project = models.ForeignKey(Project, null=False, related_name='prjfile', on_delete=models.PROTECT)
    file = models.ForeignKey(File, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'project_file'
        unique_together = ('project', 'file')


class Product_Note(models.Model):
    ref = models.ForeignKey(Product, null=False, related_name='prdnote', on_delete=models.PROTECT)
    detail = models.TextField()
    files = models.JSONField(null=True)
    user = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    deleted = models.BooleanField(null=True, default=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)
    
    class Meta: 
        db_table = 'product_note'


class News(models.Model):
    title = models.CharField(max_length=200, null=False)
    subtitle = models.CharField(max_length=500, null=False)
    image = models.CharField(max_length=300, null=False)
    header = models.JSONField(null=True)
    content = models.JSONField(null=True)
    link = models.CharField(max_length=200, null=True)
    canonical = models.CharField(max_length=200, null=True)
    category = models.ForeignKey(Category, null=False, related_name='+', on_delete=models.PROTECT)
    status = models.ForeignKey(Display_Status, null=False, related_name='+', on_delete=models.PROTECT)
    language = models.ForeignKey(Lang_Choice, null=False, related_name='+', on_delete=models.PROTECT)
    valid_from = models.DateTimeField(null=True)
    valid_to = models.DateTimeField(null=True)
    user = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'news'


class Message_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    title = models.CharField(max_length=200, null=True)
    title_en = models.CharField(max_length=200, null=True)
    content = models.TextField(null=False)
    content_en = models.TextField(null=False)
    category = models.CharField(max_length=50, null=False)
    link = models.TextField(null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'message_type'


class Message(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    ref_code = models.CharField(max_length=20, null=False)
    type = models.ForeignKey(Message_Type, null=False, related_name='+', on_delete=models.PROTECT)
    title = models.CharField(max_length=200, null=True)
    title_en = models.CharField(max_length=200, null=True)
    content = models.TextField(null=False)
    content_en = models.TextField(null=False)
    link = models.TextField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'message'


class Message_Receiver(models.Model):
    message = models.ForeignKey(Message, null=False, related_name='msgrecv', on_delete=models.PROTECT)
    user = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    status = models.ForeignKey(Notification_Status, null=False, related_name='+', on_delete=models.PROTECT, default=1)
    seen = models.BooleanField(default=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'message_receiver'
        unique_together = ('message', 'user')


class Schedule_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'schedule_type'


class Cycle_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'cycle_type'


class Task_Category(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'task_category'


class Task_Result(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'task_result'


class Alert_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'alert_type'


class Script_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'script_type'


class Noti_Theme(models.Model):
    title = models.TextField(null=True)
    content = models.TextField(null=True)
    image = models.CharField(max_length=200, null=True)
    link = models.TextField(null=True)
    receiver = models.JSONField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True)

    class Meta:
        db_table = 'noti_theme'


class Group(models.Model):
    creator = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    name = models.CharField(max_length=100, null=False)
    note = models.TextField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)
   
    class Meta:
        db_table = 'group'
        unique_together = ('creator', 'name')


class User_Group(models.Model):
    group = models.ForeignKey(Group, null=False, related_name='grus', on_delete=models.PROTECT)
    user = models.ForeignKey(User, null=False, related_name='usgr', on_delete=models.PROTECT)
    deleted = models.BooleanField(default=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)
   
    class Meta:
        db_table = 'user_group'
        unique_together = ('group', 'user')


#===================================================================
class User_Session(models.Model):
    token = models.ForeignKey(Token, null=False, related_name='userlog', on_delete=models.PROTECT)
    session = models.BigIntegerField(null=False)   
    start_time = models.DateTimeField(null=False)
    end_time = models.DateTimeField(null=True)
    duration = models.IntegerField(null=True)
    click_count = models.IntegerField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)
    
    class Meta:
        db_table = 'user_session'


#===================================================================
class User_Log(models.Model):
    session = models.ForeignKey(User_Session, null=False, related_name='+', on_delete=models.PROTECT)    
    link = models.TextField(null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    
    class Meta:
        db_table = 'user_log'


class Biz_Setting(models.Model):
    category = models.CharField(max_length=100, null=False)
    classify = models.CharField(max_length=100, null=False)
    code = models.CharField(max_length=100, null = False)
    vi = models.TextField(null=False)
    en = models.TextField(null=True)
    image = models.TextField(null=True)
    icon = models.TextField(null=True)
    link = models.TextField(null=True)
    detail = models.JSONField(null=True)
    detail_en = models.JSONField(null=True)
    index = models.IntegerField(null=True, default=0)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    
    class Meta:
        db_table = 'biz_setting'
        unique_together = ('category', 'classify', 'code')
        
class Dealer_Setting(models.Model):
    category = models.CharField(max_length=100, null=False)
    classify = models.CharField(max_length=100, null=False)
    code = models.CharField(max_length=100, null = False)
    vi = models.TextField(null=False)
    en = models.TextField(null=True)
    image = models.TextField(null=True)
    icon = models.TextField(null=True)
    link = models.TextField(null=True)
    detail = models.JSONField(null=True)
    detail_en = models.JSONField(null=True)
    index = models.IntegerField(null=True, default=0)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    
    class Meta:
        db_table = 'dealer_setting'
        unique_together = ('category', 'classify', 'code')

        
class Info_Setting(models.Model):
    category = models.CharField(max_length=100, null=False)
    classify = models.CharField(max_length=100, null=False)
    code = models.CharField(max_length=100, null = False)
    vi = models.TextField(null=False)
    en = models.TextField(null=True)
    image = models.TextField(null=True)
    icon = models.TextField(null=True)
    link = models.TextField(null=True)
    detail = models.JSONField(null=True)
    detail_en = models.JSONField(null=True)
    index = models.IntegerField(null=True, default=0)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    
    class Meta:
        db_table = 'info_setting'
        unique_together = ('category', 'classify', 'code')


class Biz_Rights(models.Model):
    setting = models.ForeignKey(Biz_Setting, null=False, related_name='+', on_delete=models.PROTECT)
    user = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    
    class Meta:
        db_table = 'biz_rights'
        unique_together = ('setting', 'user')


class Dealer_Rights(models.Model):
    setting = models.ForeignKey(Dealer_Setting, null=False, related_name='+', on_delete=models.PROTECT)
    user = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    
    class Meta:
        db_table = 'dealer_rights'
        unique_together = ('setting', 'user')


class Group_Rights(models.Model):
    setting = models.ForeignKey(Biz_Setting, null=False, related_name='+', on_delete=models.PROTECT)
    group = models.ForeignKey(User_Type, null=False, related_name='+', on_delete=models.PROTECT)
    is_edit = models.BooleanField(null=True, default=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    
    class Meta:
        db_table = 'group_rights'
        unique_together = ('setting', 'group')


class Account_Setting(models.Model):
    category = models.CharField(max_length=100, null=False)
    classify = models.CharField(max_length=100, null=False)
    code = models.CharField(max_length=100, null=False)
    vi = models.TextField(null=False)
    en = models.TextField(null=True)
    image = models.TextField(null=True)
    icon = models.TextField(null=True)
    link = models.TextField(null=True)
    detail = models.JSONField(null=True)
    detail_en = models.JSONField(null=True)
    index = models.IntegerField(null=True, default=0)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    
    class Meta:
        db_table = 'account_setting'
        unique_together = ('category', 'classify', 'code')


class Relation(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'relation'


class Branch_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'branch_type'


class Country(models.Model):
    code = models.CharField(max_length=30, null=False, unique=False)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'country'


class Issued_Place(models.Model):
    code = models.CharField(max_length=30, null=True, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'issued_place'


class Company(AutoCodeModel):
    code_prefix = "CP"
    code_padding = 5
    code = models.CharField(max_length=20, null=True, unique=True, db_index=True)
    tax_code = models.CharField(max_length=20, null=True, unique=True)
    fullname = models.CharField(max_length=300, null=False, db_index=True)
    shortname = models.CharField(max_length=50, null=True, db_index=True)
    phone = models.CharField(max_length=20, null=True, db_index=True)
    email = models.CharField(max_length=50, null=True)
    website = models.CharField(max_length=100, null=True)
    country = models.ForeignKey(Country, null=True, related_name='+', on_delete=models.PROTECT, default=1)
    address = models.CharField(max_length=200, null=True)
    contact_address = models.CharField(max_length=200, null=True)
    note = models.TextField(null=True)
    creator = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    updater = models.ForeignKey(User, null=True, related_name='+', on_delete=models.PROTECT)
    deleted = models.BooleanField(null=False, default=False, db_index=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)
        
    class Meta: 
        db_table = 'company'


class People(AutoCodeModel):
    code_prefix = "RE"
    code_padding = 5
    code = models.CharField(max_length=20, null=True, unique=True, db_index=True)
    fullname = models.CharField(max_length=50, null=False)
    phone = models.CharField(max_length=20, null=False)
    email = models.CharField(max_length=100, null=True)
    dob = models.DateField(null=True)
    sex = models.ForeignKey(Sex, null=True, related_name='+', on_delete=models.PROTECT)
    legal_type = models.ForeignKey(Legal_Type, null=True, related_name='+', on_delete=models.PROTECT)
    legal_code = models.CharField(max_length=20, null=True)
    issued_date = models.DateField(null=True)
    issued_place = models.ForeignKey(Issued_Place, null=True, related_name='+', on_delete=models.PROTECT)
    address = models.CharField(max_length=200, null=True)
    contact_address = models.CharField(max_length=200, null=True)
    taxcode = models.CharField(max_length=100, null=True)
    note = models.TextField(null=True)
    country = models.ForeignKey(Country, null=True, related_name='+', on_delete=models.PROTECT, default=1)
    company = models.ForeignKey(Company, null=True, related_name='+', on_delete=models.PROTECT)
    creator = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    updater = models.ForeignKey(User, null=True, related_name='+', on_delete=models.PROTECT)
    deleted = models.BooleanField(null=False, default=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)
    
    class Meta: 
        db_table = 'people'


class Branch(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    address = models.CharField(max_length=300, null=False)
    logo = models.CharField(max_length=300, null=True)
    phone = models.CharField(max_length=20, null=False)
    email = models.CharField(max_length=100, null=True)
    note = models.TextField(null=True)
    type = models.ForeignKey(Branch_Type, null=False, related_name='+', on_delete=models.PROTECT)
    manager = models.ForeignKey(People, null=True, related_name='+', on_delete=models.PROTECT)
    signature = models.ForeignKey(People, null=True, related_name='+', on_delete=models.PROTECT)
    start_date = models.DateField(null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'branch'


class Document_Audit(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'document_audit'


class Transaction_Phase(models.Model):
    code = models.CharField(max_length=30, null=True, unique=True)
    name = models.CharField(max_length=100, null=False)
    color = models.IntegerField(null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'transaction_phase'


class Phase_Doctype(models.Model):
    phase = models.ForeignKey(Transaction_Phase, null=False, related_name='phasedoc', on_delete=models.PROTECT)
    doctype = models.ForeignKey(Document_Type, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'phase_doctype'


class Customer(AutoCodeModel):
    code_prefix = "KH"
    code_padding = 5
    code = models.CharField(max_length=20, null=True, unique=True, db_index=True)
    fullname = models.CharField(max_length=200, null=False, db_index=True)
    phone = models.CharField(max_length=20, null=False, unique=True, db_index=True)
    email = models.CharField(max_length=50, null=True, unique=True)
    legal_type = models.ForeignKey(Legal_Type, null=True, related_name='+', on_delete=models.PROTECT)
    legal_code = models.CharField(max_length=20, null=True, unique=True)
    issued_place = models.ForeignKey(Issued_Place, null=True, related_name='+', on_delete=models.PROTECT)
    issued_date = models.DateField(null=True)
    country = models.ForeignKey(Country, null=False, related_name='+', on_delete=models.PROTECT)
    address = models.CharField(max_length=200, null=True)
    contact_address = models.CharField(max_length=200, null=True)
    note = models.TextField(null=True)
    type = models.ForeignKey(Customer_Type, null=False, related_name='+', on_delete=models.PROTECT)
    dealer = models.ForeignKey(Dealer, null=True, related_name='+', on_delete=models.PROTECT)
    creator = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    updater = models.ForeignKey(User, null=True, related_name='+', on_delete=models.PROTECT)
    deleted = models.BooleanField(null=False, default=False, db_index=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)
        
    class Meta: 
        db_table = 'customer'


class Individual(models.Model):
    customer = models.ForeignKey(Customer, null=False, related_name='indvcust', on_delete=models.PROTECT)
    dob = models.DateField(null=True)
    sex = models.ForeignKey(Sex, null=True, related_name='+', on_delete=models.PROTECT)
    zalo = models.CharField(max_length=20, null=True)
    facebook = models.CharField(max_length=200, null=True) 
    company = models.ForeignKey(Company, null=True, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)
        
    class Meta: 
        db_table = 'individual'


class Organization(models.Model):
    customer = models.ForeignKey(Customer, null=False, related_name='orgncust', on_delete=models.PROTECT)
    shortname = models.CharField(max_length=50, null=True)
    established_date = models.DateField(null=True)
    website = models.CharField(max_length=200, null=True)
    bank_account = models.CharField(max_length=50, null=True)
    bank_name = models.CharField(max_length=100, null=True)
    type = models.ForeignKey(Company_Type, null=True, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta: 
        db_table = 'organization'


class Legal_Rep(models.Model):
    organization = models.ForeignKey(Organization, null=False, related_name='orgrep', on_delete=models.PROTECT)
    people = models.ForeignKey(People, null=False, related_name='+', on_delete=models.PROTECT)
    relation = models.ForeignKey(Relation, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta: 
        db_table = 'legal_rep'


class Transaction(AutoCodeModel):
    code_prefix = "GD"
    code_padding = 5
    code = models.CharField(max_length=30, null=True, unique=True)
    customer = models.ForeignKey(Customer, null=False, related_name='txncust', on_delete=models.PROTECT)
    product = models.ForeignKey(Product, null=False, related_name='txnprd', on_delete=models.PROTECT)
    policy = models.ForeignKey(Sale_Policy, null=False, related_name='txnplc', on_delete=models.PROTECT)
    phase = models.ForeignKey(Transaction_Phase, null=False, related_name='+', on_delete=models.PROTECT)
    date = models.DateField()
    origin_price = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    discount_amount = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    sale_price = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    deposit_amount = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    deposit_received = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    deposit_remaining = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    amount_received = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    amount_remain = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    ovd_days = models.IntegerField(null=True)
    penalty_amount = models.DecimalField(null=True, max_digits=15, decimal_places=2)
    early_discount_amount = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    payment_plan = models.JSONField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'transaction'


class Transaction_Detail(AutoCodeModel):
    code_prefix = "CT"
    code_padding = 5
    code = models.CharField(max_length=30, null=True, unique=True)
    date = models.DateField()
    amount = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    amount_remaining = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    amount_received = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    due_date = models.DateField(null=True)
    customer_old = models.ForeignKey(Customer, null=True, related_name='+', on_delete=models.PROTECT)
    customer_new = models.ForeignKey(Customer, null=True, related_name='+', on_delete=models.PROTECT)
    transaction = models.ForeignKey(Transaction, null=False, related_name='resvtxn', on_delete=models.PROTECT)
    phase = models.ForeignKey(Transaction_Phase, null=False, related_name='+', on_delete=models.PROTECT)
    creator = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    status = models.ForeignKey(Transaction_Status, null=True, related_name='+', on_delete=models.PROTECT, default=1)
    approver = models.ForeignKey(User, null=True, related_name='+', on_delete=models.PROTECT)
    approve_time = models.DateTimeField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'transaction_detail'


class Transaction_Current(models.Model):
    transaction = models.OneToOneField(Transaction, null=False, related_name='txncurrent', on_delete=models.PROTECT)
    detail = models.ForeignKey(Transaction_Detail, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'transaction_current'
        unique_together = ('transaction', 'detail')


class Transaction_File(models.Model):
    txn_detail = models.ForeignKey(Transaction_Detail, null=False, related_name='txnfile', on_delete=models.PROTECT)
    file = models.ForeignKey(File, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'transaction_file'
        unique_together = ('txn_detail', 'file')


class Product_Booked(models.Model):
    product = models.OneToOneField(Product, null=False, related_name='prdbk', on_delete=models.PROTECT)
    transaction = models.ForeignKey(Transaction, null=False, related_name='transbk', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'product_booked'
        unique_together = ('product', 'transaction')


class Contract_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'contract_status'


class Contract(models.Model):
    transaction = models.ForeignKey(Transaction, null=False, related_name='+', on_delete=models.PROTECT)
    signature = models.ForeignKey(File, null=True, related_name='+', on_delete=models.PROTECT)
    status = models.ForeignKey(Contract_Status, null=True, related_name='+', on_delete=models.PROTECT, default=1)
    user = models.ForeignKey(User, null=True, related_name='+', on_delete=models.PROTECT)
    link = models.UUIDField(default=uuid.uuid4, editable=False, unique=False, null=True)
    document = models.JSONField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'contract'


class Customer_File(models.Model):
    ref = models.ForeignKey(Customer, null=False, related_name='custfile', on_delete=models.PROTECT)
    file = models.ForeignKey(File, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta: 
        db_table = 'customer_file'
        unique_together = ('ref', 'file')


class Customer_Note(models.Model):
    ref = models.ForeignKey(Customer, null=False, related_name='custnote', on_delete=models.PROTECT)
    detail = models.JSONField(null=False)
    user = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta: 
        db_table = 'customer_note'


class People_File(models.Model):
    ref = models.ForeignKey(People, null=False, related_name='+', on_delete=models.PROTECT)
    file = models.ForeignKey(File, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta: 
        db_table = 'people_file'
        unique_together = ('ref', 'file')


class Payment_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'payment_type'


class Fee_Method(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'fee_method'


class Fee_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    type = models.ForeignKey(Value_Type, null=False, related_name='+', on_delete=models.PROTECT)
    value = models.FloatField(null=False)
    method = models.ForeignKey(Fee_Method, null=True, related_name='+', on_delete=models.PROTECT)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'fee_type'


class Account_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'account_type'


class Internal_Account(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    balance = models.FloatField(null=False)
    type = models.ForeignKey(Account_Type, null=False, related_name='+', on_delete=models.PROTECT)
    currency = models.ForeignKey(Currency, null=False, related_name='+', on_delete=models.PROTECT)
    branch = models.ForeignKey(Branch, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'internal_account'
        unique_together = ('branch', 'type', 'currency')


class Account_Book(models.Model):
    system_date = models.DateField(null=False)
    account = models.ForeignKey(Internal_Account, null=False, related_name='+', on_delete=models.PROTECT)
    current_date = models.DateField(null=False)
    start_balance = models.FloatField(null=True)
    end_balance = models.FloatField(null=True)
    credit = models.FloatField(null=True)
    debit = models.FloatField(null=True)
    number_credit = models.IntegerField(null=True)
    number_debit = models.IntegerField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta: 
        db_table = 'account_book'
        unique_together = ('system_date', 'account')


class Interest_Base(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=200, null=True)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    detail = models.TextField(null=False) 
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'interest_base'


class Entry_Type(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'entry_type'


class Entry_Category(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'entry_category'


class Internal_Entry(AutoCodeModel):
    code_prefix = "BT"
    code_padding = 6
    code = models.CharField(max_length=30, null=True, unique=True, db_index=True)
    content = models.TextField(null=False)
    amount = models.FloatField(null=False)
    type = models.ForeignKey(Entry_Type, null=False, related_name='+', on_delete=models.PROTECT)
    category = models.ForeignKey(Entry_Category, null=False, related_name='entrycate', on_delete=models.PROTECT)
    balance_before = models.FloatField(null=True)
    balance_after = models.FloatField(null=False)
    approver = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    inputer = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    account = models.ForeignKey(Internal_Account, null=False, related_name='+', on_delete=models.PROTECT)
    date = models.DateField(null=False)
    ref = models.CharField(max_length=30, null=True)
    customer = models.ForeignKey(Customer, null=True, related_name='+', on_delete=models.PROTECT)
    product = models.ForeignKey(Product, null=True, related_name='+', on_delete=models.PROTECT)
    allocation_amount = models.DecimalField(null=True, max_digits=15, decimal_places=2)
    allocation_detail = models.JSONField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'internal_entry'


class Entry_File(models.Model):
    ref = models.ForeignKey(Internal_Entry, null=False, related_name='entryfile', on_delete=models.PROTECT)
    file = models.ForeignKey(File, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta: 
        db_table = 'entry_file'
        unique_together = ('ref', 'file')


class Payment_Schedule(AutoCodeModel):
    code_prefix = "SH"
    code_padding = 5
    code = models.CharField(max_length=30, null=True, unique=True)
    from_date = models.DateField(null=False)
    to_date = models.DateField(null=False)
    amount = models.DecimalField(max_digits=15, decimal_places=2)
    paid_amount = models.DecimalField(null=True, max_digits=15, decimal_places=2)
    remain_amount = models.DecimalField(null=True, max_digits=15, decimal_places=2)
    cycle = models.IntegerField(null=False)
    cycle_days = models.IntegerField(null=False)
    txn_detail = models.ForeignKey(Transaction_Detail, null=False, related_name='psh', on_delete=models.PROTECT)
    type = models.ForeignKey(Payment_Type, null=False, related_name='+', on_delete=models.PROTECT)
    status = models.ForeignKey(Payment_Status, null=False, related_name='+', on_delete=models.PROTECT)
    updater = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    entry = models.JSONField(null=True)
    detail = models.JSONField(null=True)
    batch_date = models.DateField(null=True)
    ovd_days = models.IntegerField(null=True)
    penalty_amount = models.DecimalField(null=True, max_digits=15, decimal_places=2)
    penalty_paid = models.DecimalField(null=True, max_digits=15, decimal_places=2)
    penalty_reduce = models.DecimalField(null=True, max_digits=15, decimal_places=2)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta: 
        db_table = 'payment_schedule'


class Phone_Otp(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    phone = models.CharField(max_length=10, null=False)
    otp = models.CharField(max_length=10, null=False)
    valid_to = models.DateTimeField(null=True)
    expiry = models.BooleanField(default=False)
    sms_content = models.TextField(null=True)
    sms_fee = models.IntegerField(null=True)
    sms_info = models.JSONField(null=True)
    result = models.ForeignKey(Task_Result, null=True, related_name='+', on_delete=models.PROTECT)
    status = models.ForeignKey(Auth_Status, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'phone_otp'


class Apps(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    logo = models.CharField(max_length=500, null=True)
    link = models.CharField(max_length=500, null=True)
    active = models.BooleanField(default=True)
    detail = models.TextField(null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'apps'


class User_Apps(models.Model):
    apps = models.ForeignKey(Apps, null=False, related_name='+', on_delete=models.PROTECT)
    user = models.ForeignKey(User, null=False, related_name='userapps', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'user_apps'
        unique_together = ('apps', 'user')


class Staff_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'staff_status'
        

class Staff(models.Model):
    code = models.CharField(max_length=20, null=False, unique=True, db_index=True)
    fullname = models.CharField(max_length=50, null=False, db_index=True)
    phone = models.CharField(max_length=20, null=False, unique=True, db_index=True)
    email = models.CharField(max_length=50, null=True, unique=True)
    dob = models.DateField(null=True)
    sex = models.ForeignKey(Sex, null=True, related_name='+', on_delete=models.PROTECT)
    legal_type = models.ForeignKey(Legal_Type, null=True, related_name='+', on_delete=models.PROTECT)
    legal_code = models.CharField(max_length=20, null=True, unique=True)
    issued_place = models.CharField(max_length=200, null=True)
    issued_date = models.DateField(null=True)
    country = models.ForeignKey(Country, null=False, related_name='+', on_delete=models.PROTECT)
    province = models.CharField(max_length=200, null=True)
    district = models.CharField(max_length=200, null=True)
    address = models.CharField(max_length=200, null=True)
    note = models.TextField(null=True)
    zalo = models.CharField(max_length=20, null=True)
    facebook = models.CharField(max_length=100, null=True)
    branch = models.ForeignKey(Branch, null=True, related_name='+', on_delete=models.PROTECT)
    creator = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    deleted = models.BooleanField(null=False, default=False, db_index=True)
    updater = models.ForeignKey(User, null=True, related_name='+', on_delete=models.PROTECT)
    status = models.ForeignKey(Staff_Status, null=False, related_name='+', on_delete=models.PROTECT)
    user = models.ForeignKey(User, null=True, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)
        
    class Meta: 
        db_table = 'staff'


class Customer_People(models.Model):
    customer = models.ForeignKey(Customer, null=False, related_name='custpeople', on_delete=models.PROTECT)
    people = models.ForeignKey(People, null=False, related_name='+', on_delete=models.PROTECT)
    relation = models.ForeignKey(Relation, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta: 
        db_table = 'customer_people'
        unique_together = ('customer', 'people')


class Staff_File(models.Model):
    ref = models.ForeignKey(Staff, null=False, related_name='stafffile', on_delete=models.PROTECT)
    file = models.ForeignKey(File, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta: 
        db_table = 'staff_file'
        unique_together = ('ref', 'file')


class Task_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    en = models.CharField(max_length=100, null=True)
    index = models.IntegerField(null=True, default=1)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'task_status'


class Batch_Log(models.Model):
    system_date = models.DateField(null=False)
    start_time = models.DateTimeField(null=False)
    end_time = models.DateTimeField(null=True)
    duration = models.IntegerField(null=True)
    log = models.JSONField(null=True)
    status = models.ForeignKey(Task_Status, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta: 
        db_table = 'batch_log'


class Sms(models.Model):
    session_id = models.CharField(max_length=300, null=False)
    request_id = models.CharField(max_length=300, null=False)
    brandname = models.CharField(max_length=20, null=False)
    phone = models.CharField(max_length=11, null=False)
    message = models.CharField(max_length=300, null=False)
    type = models.CharField(max_length=30, null=False)
    agent = models.CharField(max_length=30, null=False)
    telco = models.CharField(max_length=30, null=False)
    status = models.CharField(max_length=30, null=False)
    price = models.IntegerField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'sms'


class Customer_Sms(models.Model):
    ref = models.ForeignKey(Customer, null=False, related_name='custsms', on_delete=models.PROTECT)
    sms = models.ForeignKey(Sms, null=False, related_name='+', on_delete=models.PROTECT)
    user = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta: 
        db_table = 'customer_sms'


class Backup(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=200, null=False)
    file = models.CharField(max_length=200, null=True)
    status = models.ForeignKey(Task_Status, null=False, related_name='+', on_delete=models.PROTECT)
    note = models.TextField(null=True)
    start_time = models.DateTimeField(null=True)
    end_time = models.DateTimeField(null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'backup'


class Ssh(models.Model):
    name = models.CharField(max_length=300, null=False)
    host = models.CharField(max_length=30, null=False)
    port = models.IntegerField(null=False)
    username = models.CharField(max_length=50, null=False)
    password = models.CharField(max_length=50, null=False)
    path = models.CharField(max_length=300, null=False)
    deleted = models.BooleanField(default=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True)

    class Meta:
        db_table = 'ssh'
        
class Document_Configuration(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=200, null=False)
    template_path = models.CharField(max_length=200, null=False)
    mappings =  models.JSONField (default=list)
    update_time = models.DateTimeField(null=True, auto_now=True)
    class Meta:
        db_table = 'document_configuration'


class Import_Setting(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    detail = models.JSONField(null=False)
    note = models.TextField(null=True)
    template = models.TextField(null=True)
    api = models.CharField(max_length=100, null=False)
    call_api = models.CharField(max_length=100, null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'import_setting'


class Layer_Setting(AutoCodeModel):
    code_prefix = "LS"
    code_padding = 4
    code = models.CharField(max_length=20, null=True, unique=True)
    name = models.CharField(max_length=200, null=False)
    detail = models.JSONField(null=False)
    user = models.ForeignKey(User, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'layer_setting'


#==========================================================================
class Send_Status(models.Model):
    code = models.CharField(max_length=30, null=False, unique=True)
    name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)

    class Meta:
        db_table = 'send_status'

class Email_Setup(models.Model):
    email = models.CharField(max_length=100, null=False, unique=True)
    password = models.CharField(max_length=30, null=False)
    smtp = models.CharField(max_length=100, null=False)
    port = models.IntegerField(null=False)
    display_name = models.CharField(max_length=100, null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'email_setup'


class Email_Sent(models.Model):
    receiver = models.TextField(null=False)
    subject = models.TextField(null=False)
    content = models.TextField(null=False)
    status = models.ForeignKey(Send_Status, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True)

    class Meta:
        db_table = 'email_sent'

class Email_List(models.Model):
    name = models.CharField(max_length=200, null=False, unique=True)
    email = models.TextField(null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True)

    class Meta:
        db_table = 'email_list'

class Email_Template(models.Model):
    name = models.CharField(max_length=200, null=False, unique=True)
    content = models.JSONField(null=False)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True)

    class Meta:
        db_table = 'email_template'


class Email_Job(models.Model):
    name = models.CharField(max_length=200, null=False)
    model_name = models.CharField(max_length=100, null=False, help_text="e.g., app.Transaction_Detail")
    template = models.ForeignKey(Email_Template, null=False, related_name='+', on_delete=models.PROTECT)
    trigger_on_create = models.BooleanField(default=False)
    trigger_on_update = models.BooleanField(default=False)
    active = models.BooleanField(default=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

 
    class Meta:
        db_table = 'email_job'
        
class Transaction_Discount(models.Model):
    transaction = models.ForeignKey(Transaction, null=False, related_name='txndiscount', on_delete=models.PROTECT)
    discount = models.ForeignKey(Discount_Type, null=False, related_name='+', on_delete=models.PROTECT)
    type = models.ForeignKey(Value_Type, null=False, related_name='+', on_delete=models.PROTECT)
    value = models.DecimalField(max_digits=15, decimal_places=2, null=True)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)
 
    class Meta:
        db_table = 'transaction_discount'

class Co_Ownership(models.Model):
    transaction = models.ForeignKey(Transaction, null=False, related_name='co_op', on_delete=models.PROTECT)
    people = models.ForeignKey(People, null=False, related_name='+', on_delete=models.PROTECT)
    create_time = models.DateTimeField(null=True, auto_now_add=True)
    update_time = models.DateTimeField(null=True, auto_now=True)

    class Meta:
        db_table = 'co_ownership'
        unique_together = ('transaction', 'people')
        
class Workflow(models.Model):
    """
    Bảng Workflow: Quản lý các luồng chính (multi-flow cho dự án).
    Ví dụ: 'RESERVATION' cho giữ chỗ, 'LOAN_APPROVAL' cho duyệt vay.
    """
    code = models.CharField(max_length=50, unique=True)  # e.g., 'RESERVATION'
    name = models.CharField(max_length=200)
    description = models.TextField(blank=True)
    is_active = models.BooleanField(default=True)
    initial_step = models.ForeignKey('StepAction', null=True, blank=True, on_delete=models.SET_NULL, related_name='initial_workflows')
    create_time = models.DateTimeField(auto_now_add=True)
    update_time = models.DateTimeField(auto_now=True)

    class Meta:
        db_table = 'workflow'
        verbose_name = 'Workflow'
        verbose_name_plural = 'Workflows'

    def __str__(self):
        return f"{self.name} ({self.code})"

class StepAction(models.Model):
    """
    Bảng Step/Action: Định nghĩa các bước/hành động trong Workflow.
    Liên kết với Workflow, lưu chi tiết actions (JSON: list of dicts).
    Ví dụ: Step 'create_reservation' có actions: [{'type': 'create_record', 'model': 'app.Transaction', 'fields': {...}}]
    """
    workflow = models.ForeignKey(Workflow, on_delete=models.CASCADE, related_name='steps')
    step_code = models.CharField(max_length=50, unique=True)  # e.g., 'create_reservation', 'approve_detail'
    name = models.CharField(max_length=200)
    description = models.TextField(blank=True)
    order = models.PositiveIntegerField(default=0)  # Thứ tự chạy trong workflow
    trigger_event = models.CharField(max_length=50, choices=[
        ('create', 'Create'), ('update', 'Update'), ('approve', 'Approve'),
        ('advance', 'Advance'), ('confirm', 'Confirm'), ('custom', 'Custom')
    ])
    target_model = models.CharField(max_length=100, blank=True, help_text="Model chính, e.g., 'app.Transaction'")
    # Actions: List chi tiết hành động (dynamic, multi-model)
    actions = JSONField(default=list, blank=True)  # e.g., [{'type': 'create_record', 'model': 'app.Product', 'fields': {'status': 'reserved'}}]
    # Config extra: e.g., {'auto_advance': True, 'required_fields': ['customer_id']}
    config = JSONField(default=dict, blank=True)
    is_active = models.BooleanField(default=True)
    create_time = models.DateTimeField(auto_now_add=True)
    update_time = models.DateTimeField(auto_now=True)

    class Meta:
        db_table = 'step_action'
        ordering = ['order']
        unique_together = ('workflow', 'step_code')
        verbose_name = 'Step/Action'
        verbose_name_plural = 'Steps/Actions'

    def __str__(self):
        return f"{self.workflow.name} - {self.name} ({self.step_code})"

class Rule(models.Model):
    """
    Bảng Rule: Định nghĩa điều kiện (conditions) và quy luật ràng buộc cho Step/Action.
    Liên kết với StepAction, dùng cho validation/constraints.
    Ví dụ: Condition: {'field': 'a_a', 'operator': '==', 'value': 'specific_value'} → Chỉ thực hiện nếu match.
    Constraint: {'after_action': 'create_record', 'must_update': {'model': 'app.Product', 'field': 'status', 'to': 'reserved'}}
    """
    step_action = models.ForeignKey(StepAction, on_delete=models.CASCADE, related_name='rules')
    rule_code = models.CharField(max_length=50, unique=True)  # e.g., 'validate_customer_vip'
    name = models.CharField(max_length=200)
    description = models.TextField(blank=True)
    # Conditions: List conditions để check trước action
    conditions = JSONField(default=list, blank=True)  # e.g., [
        # {'field': 'customer__segment__code', 'operator': '==', 'value': 'VIP', 'related_model': 'app.Customer'},
        # {'field': 'amount', 'operator': '>=', 'value': 1000000}]
    # Constraints: Quy luật sau/before action (ràng buộc)
    constraints = JSONField(default=list, blank=True)  # e.g., [
        # {'trigger': 'after_create', 'type': 'must_update', 'model': 'app.Transaction_Detail', 'fields': {'status': 'new'}},
        # {'trigger': 'before_approve', 'type': 'require_approval', 'min_count': 2}]
    # Utility linkage: Liên kết với Utility nếu cần reuse
    utility = models.ForeignKey('Utility', null=True, blank=True, on_delete=models.SET_NULL, related_name='rules')
    is_active = models.BooleanField(default=True)
    create_time = models.DateTimeField(auto_now_add=True)
    update_time = models.DateTimeField(auto_now=True)

    class Meta:
        db_table = 'rule'
        unique_together = ('step_action', 'rule_code')
        verbose_name = 'Rule'
        verbose_name_plural = 'Rules'

    def __str__(self):
        return f"{self.step_action.name} - {self.name} ({self.rule_code})"

class Utility(models.Model):
    """
    Bảng Utility: Chứa các action có sẵn, liên kết với hệ thống khác (e.g., API mail, CRUD data).
    Dùng để reuse trong StepAction/Rule (e.g., gửi mail → gọi send_email API; create record → gọi /data/ endpoint).
    """
    code = models.CharField(max_length=50, unique=True)  # e.g., 'SEND_EMAIL', 'CRUD_DATA'
    name = models.CharField(max_length=200)
    description = models.TextField(blank=True)
    # Type: Phân loại utility (e.g., 'email', 'crud', 'payment')
    utility_type = models.CharField(max_length=50, choices=[
        ('email', 'Email API'), ('crud', 'Data CRUD'), ('payment', 'Payment API'),
        ('document', 'Document Gen'), ('notification', 'Notification'), ('custom', 'Custom')
    ])
    # Endpoint/API linkage: e.g., {'url': '/send-email/', 'method': 'POST', 'params': {'template': '[template]'}}
    api_config = JSONField(default=dict, blank=True)  # Config gọi API (dynamic placeholders như [user_id])
    # Params template: Mẫu params khi gọi
    params_template = JSONField(default=dict, blank=True)  # e.g., {'receiver': '[customer_email]', 'subject': 'Approval'}
    # External integration: e.g., liên kết với Email_Job hoặc account_entry_api
    integration_module = models.CharField(max_length=100, blank=True, help_text="e.g., 'app.email.send_email'")
    is_active = models.BooleanField(default=True)
    create_time = models.DateTimeField(auto_now_add=True)
    update_time = models.DateTimeField(auto_now=True)

    class Meta:
        db_table = 'utility'
        verbose_name = 'Utility'
        verbose_name_plural = 'Utilities'

    def __str__(self):
        return f"{self.name} ({self.code}) - Type: {self.utility_type}"

class Batch_Job(models.Model):
    name = models.CharField(max_length=255)
    workflow = models.ForeignKey(Workflow, on_delete=models.PROTECT, help_text="Workflow to execute")
    cron_schedule = models.CharField(max_length=100, help_text="Cron-like schedule (e.g., '0 0 * * *' for daily at midnight)")
    parameters = models.JSONField(default=dict, blank=True, help_text="Parameters to find data for the workflow context")
    is_active = models.BooleanField(default=True, db_index=True)
    last_run_at = models.DateTimeField(null=True, blank=True)
    next_run_at = models.DateTimeField(null=True, blank=True, db_index=True)
    
    create_time = models.DateTimeField(auto_now_add=True)
    update_time = models.DateTimeField(auto_now=True)

    def __str__(self):
        return self.name

    class Meta:
        db_table = 'batch_job'