from django.contrib.auth.models import User
from django.db import models
from django.db.models import Q
from django.utils import timezone

from Main.models.group import Group
from Main.models.settask import SetTask
from Main.models.subscription import Subscription
from Main.models.task import Task
from Sprint.settings import CONSTS
from SprintLib.language import languages


class UserInfo(models.Model):
    surname = models.TextField(null=True)
    name = models.TextField(null=True)
    last_request = models.DateTimeField(default=timezone.now)
    profile_picture_fs_id = models.IntegerField(null=True)
    favourite_language_id = models.IntegerField(null=True)
    rating = models.IntegerField(default=0)
    user = models.OneToOneField(User, on_delete=models.CASCADE, null=True)
    telegram_chat_id = models.TextField(default="")
    notification_solution_result = models.BooleanField(default=False)
    code = models.IntegerField(null=True)
    verified = models.BooleanField(default=False)

    @property
    def has_favourite_language(self):
        return self.favourite_language_id is not None

    @property
    def favourite_language(self):
        if not self.has_favourite_language:
            return None
        return languages[self.favourite_language_id]

    def _append_task(self, task, tasks):
        if task.creator == self.user or task.public or self.user.is_superuser:
            tasks.append(task)
            return
        for st in SetTask.objects.filter(task=task):
            if st.set.public:
                tasks.append(task)
                return
            for group in Group.objects.filter(sets=st.set):
                for sub in Subscription.objects.filter(group=group):
                    if sub.user == self.user:
                        tasks.append(task)
                        return

    @property
    def available_tasks(self):
        tasks = []
        for task in Task.objects.all():
            self._append_task(task, tasks)
        return sorted(tasks, key=lambda x: x.time_estimation)

    @property
    def place(self):
        return len(UserInfo.objects.filter(rating__gt=self.rating)) + 1

    @property
    def activity_status(self):
        if timezone.now() - self.last_request <= timezone.timedelta(minutes=5):
            return CONSTS["online_status"]
        return timezone.datetime.strftime(self.last_request, "%d-%m-%Y %H:%M")

    @property
    def can_create(self):
        # todo:
        return self.user.is_superuser

    @property
    def has_profile_pic(self):
        try:
            return self.profile_picture_fs_id is not None
        except ValueError:
            return False

    @property
    def profile_pic_url(self):
        if self.has_profile_pic:
            return "/image?id=" + str(self.profile_picture_fs_id)
        return "https://i2.wp.com/electrolabservice.com/wp-content/uploads/2021/01/blank-profile-picture-mystery-man-avatar-973460.jpg"