From 3beebb77247edb53ba4e6243d6de34a3809d45ff Mon Sep 17 00:00:00 2001
From: Ivlev Denis <di-erz@yandex.ru>
Date: Tue, 13 Mar 2018 14:33:36 +0300
Subject: [PATCH] LIL-292, LIL-293, LIL-304

---
 .../notification/email/accept_author.html     | 13 ++++++
 .../notification/email/decline_author.html    |  8 ++++
 apps/user/admin.py                            |  2 +
 apps/user/models.py                           | 46 +++++++++++++++++++
 4 files changed, 69 insertions(+)
 create mode 100644 apps/notification/templates/notification/email/accept_author.html
 create mode 100644 apps/notification/templates/notification/email/decline_author.html

diff --git a/apps/notification/templates/notification/email/accept_author.html b/apps/notification/templates/notification/email/accept_author.html
new file mode 100644
index 00000000..44221ba5
--- /dev/null
+++ b/apps/notification/templates/notification/email/accept_author.html
@@ -0,0 +1,13 @@
+{% extends "notification/email/_base.html" %}
+
+{% block content %}
+  <p style="margin: 0 0 20px">Поздравляем! Вам одобрено назначение преподавателем!</p>
+  <div style="margin-bottom: 10px;">
+    <p>Теперь вы можете публиковать курсы.</p>
+    {% if password and email %}
+    <p><strong>Параметры входа:</strong></p>
+    <p><strong>email:</strong> {{ email }}</p>
+    <p><strong>пароль:</strong> {{ password }}</p>
+    {% endif %}
+  </div>
+{% endblock content %}
diff --git a/apps/notification/templates/notification/email/decline_author.html b/apps/notification/templates/notification/email/decline_author.html
new file mode 100644
index 00000000..d67dfe3e
--- /dev/null
+++ b/apps/notification/templates/notification/email/decline_author.html
@@ -0,0 +1,8 @@
+{% extends "notification/email/_base.html" %}
+
+{% block content %}
+  <p style="margin: 0 0 20px">К сожалению вам отказано в назначении преподавателем!</p>
+  <div style="margin-bottom: 10px;">
+    <p>{{ cause }}</p>
+  </div>
+{% endblock content %}
diff --git a/apps/user/admin.py b/apps/user/admin.py
index be63ec0e..5440f146 100644
--- a/apps/user/admin.py
+++ b/apps/user/admin.py
@@ -28,6 +28,8 @@ class AuthorRequestAdmin(admin.ModelAdmin):
         'first_name',
         'last_name',
         'status',
+        'accepted_send_at',
+        'declined_send_at',
         'created_at',
         'update_at',
     )
diff --git a/apps/user/models.py b/apps/user/models.py
index b1f34217..7ccbf2dc 100644
--- a/apps/user/models.py
+++ b/apps/user/models.py
@@ -6,9 +6,11 @@ from django.db.models.signals import post_save
 from django.dispatch import receiver
 from django.contrib.auth.models import AbstractUser, UserManager
 from django.contrib.postgres import fields as pgfields
+from django.utils.timezone import now
 from django.utils.translation import gettext_lazy as _
 
 from api.v1 import serializers
+from apps.notification.utils import send_email
 
 
 class User(AbstractUser):
@@ -130,3 +132,47 @@ class AuthorRequest(models.Model):
         verbose_name = 'Заявка не преподавателя'
         verbose_name_plural = 'Заявки не преподавателя'
         ordering = ('-created_at',)
+
+
+@receiver(post_save, sender=AuthorRequest)
+def handle_authorrequest_update(sender, instance=None, created=False, update_fields=[], **kwargs):
+    if not created:
+        if instance.status == AuthorRequest.DECLINED and not instance.declined_send_at:
+            send_email.delay(
+                'Отказ заявки на преподавателя',
+                instance.email,
+                'notification/email/decline_author.html',
+                cause=instance.cause,
+            )
+            instance.declined_send_at = now()
+            instance.save()
+        elif instance.status == AuthorRequest.ACCEPTED and not instance.accepted_send_at:
+            email = None
+            password = None
+            try:
+                user = User.objects.get(email=instance.email)
+            except User.DoesNotExist:
+                email = instance.email
+                password = User.objects.make_random_password()
+                user = User.objects.create(
+                    first_name=instance.first_name,
+                    last_name=instance.last_name,
+                    username=instance.email,
+                    email=instance.email,
+                    about=instance.about,
+                    facebook=instance.facebook,
+                    is_active=True,
+                    is_email_proved=True,
+                )
+                user.set_password(password)
+            user.role = User.AUTHOR_ROLE
+            user.save()
+            send_email.delay(
+                'Заявка на преподавателя одобрена',
+                instance.email,
+                'notification/email/accept_author.html',
+                email=email,
+                password=password,
+            )
+            instance.accepted_send_at = now()
+            instance.save()