from django.contrib.auth import get_user_model
from django.db import models

from tickets.models import Ticket

from dbsynce.docs.database.permissions import Permissions as HelpTexts
from dbsynce.docs.verbose_names.permissions import Permissions as VerboseName
from core.settings_vars import METASERVICE_ID

from dbsynce.lib import dicts

class Permissions(models.Model):
    """
    Разрешения - (проверки/экзамены). 
    По смыслу это что-то вроде “документа на право что-то делать” - на данном этапе это ограничено метасервисом/платформой, 
    при этом он может быть полностью цифровым (выданным платформой/сервисом).
    """

    # ID METASERVICE
    id_metaservice = models.PositiveIntegerField(
        default=METASERVICE_ID,
        verbose_name = VerboseName.id_metaservice,
        help_text=HelpTexts.id_metaservice,
    )

    # DATA

    id_permissions = models.BigIntegerField(
        verbose_name = VerboseName.id_permissions,
        help_text=HelpTexts.id_permissions,
    )

    #permission_type = models.BigIntegerField(
    #    help_text=HelpTexts.permission_type
    #)
    check_level = models.CharField(
        max_length=10,
        verbose_name = VerboseName.check_level,
        help_text=HelpTexts.check_level,
    )
    status = models.CharField(
        max_length=1,
        default="1",
        choices = list(dicts.activity_status_by_code.items()),
        verbose_name = VerboseName.status,
        help_text=HelpTexts.status,
    )
    check_date = models.DateTimeField(
        null=True,
        verbose_name = VerboseName.check_date,
        help_text=HelpTexts.check_date,
    )
    expire_date = models.DateField(
        null=True,
        verbose_name = VerboseName.expire_date,
        help_text=HelpTexts.expire_date,
    )

    # OTHER
    is_global = models.CharField(
        max_length=1,
        default="f",
        choices = list(dicts.is_global_by_code.items()),
        verbose_name = VerboseName.is_global,
        help_text=HelpTexts.is_global,
    )
    is_visible = models.CharField(
        max_length=1,
        default="f",
        choices = list(dicts.is_visible_by_code.items()),
        verbose_name = VerboseName.is_visible,
        help_text=HelpTexts.is_visible,
    )

    # FK
    ticket_status = models.ForeignKey(
        Ticket,
        on_delete=models.DO_NOTHING,
        null=True,
        verbose_name = VerboseName.ticket_status,
        help_text=HelpTexts.ticket_status,
    )
    user = models.ForeignKey(
        get_user_model(),
        related_name="user_perm",
        on_delete=models.DO_NOTHING,
        null=True,
        verbose_name = VerboseName.user,
        help_text=HelpTexts.user
    )
    checked_by = models.ForeignKey(
        get_user_model(),
        related_name="checked_by_perm",
        on_delete=models.DO_NOTHING,
        null=True,
        verbose_name = VerboseName.checked_by,
        help_text=HelpTexts.checked_by,
    )

    class Meta:
        db_table = "permissions"
        verbose_name = "Разрешение"
        verbose_name_plural = "Разрешения"