from django.contrib.auth.models import User
from django.db import models
from django.utils.translation import gettext_lazy as _

from django_cryptography.fields import encrypt

from lib.utils.general import get_random_string
from lib.models.base import MetaDataModel

from .lib.utils import run_synthea

import uuid

# Create your models here.
class Synthea(MetaDataModel):
    """Synthea model that holds some iformation about a generated output.

    Attributes
    ----------
        id : uuid 
            A unique ID for every Synthea run. Leave empty for auto generating a new value.
        state : str
            The state for which you want to generate Synthea patient data
        population : int
            The amount of patients you want to generate
        gender : datetime
            Generate only male (m), only female(f) or leave empty for male and female
        age : str
            The age range for the patients. Enter like [min_age]-[max_age]
        module : str
            The module to use for patient generating. Leave empty for random use by Synthea
        log : str
            The outcome of a single patient generating run. This can be read in the admin area.

    Returns:
        Synthea: A new Synthea model
    """
    
    class Meta:
        verbose_name = _('synthea')
        verbose_name_plural = _('synthea')

    id         = models.UUIDField(_('ID'), primary_key=True, unique=True,  default=uuid.uuid4, editable=False, help_text=_('A unique id'))
    state      = models.CharField(_('State'), max_length=200, help_text=_('The state for which synthea generate data.'))
    population = models.PositiveSmallIntegerField(_('Population'), default=50, help_text=_('The size of the population'))
    gender     = models.CharField(_('Gender'), blank=True,max_length=1, help_text=_('Select the gender type'))
    age        = models.CharField(_('Age range'), blank=True,default='18-100', max_length=10, help_text=_('Select the age range. Enter [min age]-[max age]'))
    module     = models.CharField(_('Module'),blank=True, max_length=50, help_text=_('Select the module'))
    log        = models.TextField(_('Log'),blank=True, help_text=_('Synthea logfile output'))

    def generate(self):
        """Run the patient generation. This will return a logfile and a zipfile location for download.

        The log will be stored in the model when done. This log can then be seen/readed in the admin section of Django

        Returns:
            str: The zip file location on disk.
        """
        # Start generating patient data.
        log,zip_file = run_synthea(
            self.state,
            self.population,
            self.gender,
            self.age,
            self.module
        )
        # Store the log from the Synthea run in the database.
        self.log = log
        self.save()
        # Return the zip file locaton for download
        return zip_file