import json

from django.contrib.contenttypes.fields import GenericRelation
from django.db import models

class TtMaximumWorkspan(models.Model):
    code = models.CharField(max_length=150)
    name = models.CharField(max_length=255)
    desc = models.TextField(null=True)
    department = models.ForeignKey("api.TtDepartment", on_delete=models.SET_NULL,null=True)
    maximum_period = models.IntegerField(default=0)
    extra_data_1 = models.TextField(null=True)
    extra_data_2 = models.TextField(null=True)
    extra_data_3 = models.TextField(null=True)
    extra_data_4 = models.TextField(null=True)
    extra_data_5 = models.TextField(null=True)
    extra_data_6 = models.TextField(null=True)
    extra_data_7 = models.TextField(null=True)
    extra_data_8 = models.TextField(null=True)
    extra_data_9 = models.TextField(null=True)
    extra_data_10 = models.TextField(null=True)
    status = models.SmallIntegerField()
    created_by = models.BigIntegerField(null=True)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_by = models.BigIntegerField(null=True)
    updated_at = models.DateTimeField(auto_now=True)

    time_block = models.ManyToManyField("api.TtTimeBlock",through="api.TtMaximumWorkspanTimeBlock")

    tag = GenericRelation(
        "api.TtTagRelation",
        content_type_field="refer_table",
        object_id_field="refer_id",
    )

    STATUS_TO_CODE = {
        "active": 1,
        "inactive": 2,
    }

    IMPORT_RULES = {
        
    }

    class Meta:
        db_table = "tt_maximum_workspan"

    def __str__(self):
        return self.name