import uuid
from django.db import models

from .managers import CallRequestManager

__all__ = [
    'CallMedicalService',
    'CallMedicalSpeciality',
    'CallLPU',
    'CallRequest',
    'RequestLog'
]


class CallMedicalService(models.Model):

    medical_service = models.ForeignKey('medicine.MedicalService', db_constraint=False, on_delete=models.CASCADE,
                                        verbose_name='Услуга (МИС)')
    name = models.CharField(max_length=100, verbose_name='Произношение роботом')

    class Meta:
        verbose_name = 'Услуга'
        verbose_name_plural = 'Услуги'

    def __str__(self):
        return f'{self.medical_service.name} ← {self.name}'


class CallMedicalSpeciality(models.Model):

    speciality = models.ForeignKey('medicine.MedicalSpeciality', db_constraint=False, on_delete=models.CASCADE,
                                   verbose_name='Специальность (МИС)')
    name = models.CharField(max_length=100, verbose_name='Произношение роботом')

    class Meta:
        verbose_name = 'Специальность'
        verbose_name_plural = 'Специальности'

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


class CallLPU(models.Model):

    lpu = models.ForeignKey('medicine.LPU', db_constraint=False, on_delete=models.CASCADE, verbose_name='ЛПУ')
    name = models.CharField(max_length=100, verbose_name='Произношение роботом')
    address = models.TextField(max_length=200, null=True, blank=True, verbose_name='Адрес для произношения роботом')

    class Meta:
        verbose_name = 'Филиал'
        verbose_name_plural = 'Филиалы'

    def __str__(self):
        return self.lpu.full_name


class CallRequest(models.Model):

    class Status(models.TextChoices):
        PENDING = 'PENDING', 'Обзвон еще не состоялся'
        APPROVED = 'APPROVED', 'Прием подтвержден'
        CANCELED = 'CANCELED', 'Прием отменен'
        CALLBACK = 'CALLBACK', 'Перезвонить'
        WITHOUT_ANSWER = 'WITHOUT_ANSWER', 'Не дозвонились'
        OTHER = 'OTHER', 'Другая ошибка'

    STATUS_COLOR = {
        Status.PENDING: '#2D72D2',
        Status.APPROVED: '#238551',
        Status.CANCELED: '#CD4246',
        Status.CALLBACK: '#935610',
        Status.WITHOUT_ANSWER: '#866103',
        Status.OTHER: '#5A701A'
    }

    class RequestStatus(models.TextChoices):
        NOT_SENT = 'PENDING', 'Не отправлен'
        SENT = 'APPROVED', 'Отправлен'
        ERROR = 'ERROR', 'Ошибка'
        SERVICE_UNAVAILABLE = 'SERVICE_UNAVAILABLE', 'Сервис недоступен'
        COMPLETED = 'COMPLETED', 'Завершен'

    REQUEST_STATUS_COLOR = {
        RequestStatus.NOT_SENT: '#2D72D2',
        RequestStatus.SENT: '#238551',
        RequestStatus.ERROR: '#CD4246',
        RequestStatus.SERVICE_UNAVAILABLE: '#7961DB',
        RequestStatus.COMPLETED: '#147EB3',
    }

    uid = models.UUIDField(unique=True, default=uuid.uuid4, editable=False)
    status = models.CharField(max_length=20, choices=Status.choices, default=Status.PENDING,
                              verbose_name='Статус приема')
    request_status = models.CharField(max_length=20, choices=RequestStatus.choices, default=RequestStatus.NOT_SENT,
                                      verbose_name='Статус запроса')
    date = models.DateField(verbose_name='Дата')
    booking_id = models.PositiveIntegerField(unique=True, null=True, verbose_name='ID записи на прием')
    booking_date = models.DateTimeField(null=True, verbose_name='Дата и время записи на прием')
    patient_id = models.IntegerField(verbose_name='ID пациента')
    patient_first_name = models.CharField(max_length=200, verbose_name='Имя')
    patient_last_name = models.CharField(max_length=200, verbose_name='Фамилия')
    patient_middle_name = models.CharField(max_length=200, null=True, blank=True, verbose_name='Отчество')
    patient_phone = models.CharField(max_length=100, verbose_name='Номер телефона')
    doctor_name = models.CharField(max_length=100, null=True, verbose_name='Врач')
    doctor_speciality = models.CharField(max_length=200, null=True, verbose_name='Специальность врача')
    service_name = models.CharField(max_length=200, null=True, blank=True, verbose_name='Услуга')
    organization = models.CharField(max_length=200, null=True, blank=True, verbose_name='Организация')
    address = models.CharField(max_length=200, null=True, blank=True, verbose_name='Адрес')
    data = models.JSONField(default=dict, blank=True, verbose_name='Данные')
    is_active = models.BooleanField(default=True, verbose_name='Активность')

    call_id = models.CharField(max_length=100, null=True, editable=False, verbose_name='ID')
    call_data = models.JSONField(default=dict, blank=True, editable=False)
    call_text_log = models.TextField(null=True, blank=True, editable=False, verbose_name='Лог')
    call_result = models.CharField(max_length=100, null=True, editable=False, blank=True, verbose_name='Результат')
    request_time = models.DateTimeField(null=True, editable=False)
    response_status_code = models.IntegerField(null=True, editable=False)
    response_message = models.TextField(null=True, editable=False)

    class Meta:
        verbose_name = 'Запрос на звонок'
        verbose_name_plural = 'Запросы на звонки'

    objects = CallRequestManager()

    def __str__(self):
        return f"{self.date.strftime('%d.%m.%Y')} / {self.patient_last_name}"

    def get_status_color(self):
        return self.STATUS_COLOR.get(self.status)

    def get_request_status_color(self):
        return self.REQUEST_STATUS_COLOR.get(self.request_status)

    def reset_request(self):
        self.call_id = None
        self.call_data = dict()
        self.request_status = CallRequest.RequestStatus.NOT_SENT
        self.status = CallRequest.Status.PENDING
        self.request_time = None
        self.response_status_code = None
        self.response_message = None
        self.save(update_fields=(
            'request_status',
            'request_time',
            'response_status_code',
            'response_message',
        ))


class RequestLog(models.Model):

    class Meta:
        verbose_name = 'Запрос'
        verbose_name_plural = 'История запросов'
        ordering = ('-created',)

    request_url = models.CharField(max_length=500, verbose_name='Адрес запроса')
    request_body = models.TextField(null=True, blank=True, verbose_name='Запрос')
    request_method = models.CharField(max_length=100, null=True, verbose_name='Тип запроса')

    response_body = models.TextField(null=True, blank=True, verbose_name='Ответ')
    response_http_code = models.CharField(max_length=4, null=True, verbose_name='HTTP статус ответа')

    created = models.DateTimeField(auto_now_add=True, editable=False, db_index=True, verbose_name='Дата запроса')

    def __str__(self):
        return self.request_url

    def response_hook(self, r, *args, **kwargs):
        self.response_http_code = r.status_code
        self.response_body = r.text
        self.save()