Mail service and use case (invite firend) done NOT TESTED (#58)

* Mail service and use case (invite firend)

thesheriff/application/outlaw/invite_friend.py

@@ -0,0 +1,18 @@
+import inject
+from thesheriff.domain.mail.mail import Mail
+from thesheriff.domain.mail.repository.mail_notification \
+    import MailNotification
+from thesheriff.domain.outlaw.outlaw import Outlaw
+
+
+class InviteFriend:
+
+    @inject.autoparams()
+    def __init__(self, mail_repository: MailNotification):
+        self.mail_repository = mail_repository
+
+    def execute(self, receiver_mail_address):
+        sender = Outlaw.get_email()
+        receiver = receiver_mail_address
+        mail = Mail.mail_invite_friend(sender, receiver)
+        self.mail_repository.send(mail)

thesheriff/domain/mail/mail.py

@@ -0,0 +1,23 @@
+import string
+
+
+class Mail:
+    def __init__(self):
+        sender = ""
+        receiver = ""
+        content = ""
+
+    def mail_invite_friend(self, sender, receiver):
+        self.sender = sender
+        self.receiver = receiver
+        self.content = "Hello dear " + str(receiver) + "!\n " \
+                       "Do you want to join this awesome game?" + \
+                       "Come on!"
+
+        if sender is None:
+            raise Exception('User address needed to send an invitation')
+        if receiver is None:
+            raise Exception('Destination address needed to send an invitation')
+
+    def send_notification_raid(self):
+        return

thesheriff/domain/mail/repository/mail_notification.py

@@ -0,0 +1,9 @@
+import abc
+from thesheriff.domain.mail.mail import Mail
+
+
+class MailNotification(abc.ABC):
+
+    @abc.abstractmethod
+    def send(self,  mail: Mail):
+        pass

thesheriff/domain/outlaw/outlaw.py

@@ -33,3 +33,6 @@ def join_gang(self, gang: Gang) -> NoReturn:
         :rtype: NoReturn
         """
         self.gangs.append(gang)
+
+    def get_email(self):
+        return self.email

thesheriff/domain/outlaw/repository/outlaw_repository.py

@@ -23,7 +23,3 @@ def update(self, mod_outlaw: Outlaw) -> NoReturn:
     @abc.abstractmethod
     def remove(self, outlaw_id: int) -> NoReturn:
         pass
-
-    @abc.abstractmethod
-    def get_friends(self, outlaw_id: int) -> List[Outlaw]:
-        pass

thesheriff/infrastructure/controllers/outlaw_controller.py

@@ -15,6 +15,7 @@
 from thesheriff.application.outlaw.request.create_outlaw_request import \
     CreateOutlawRequest
 from thesheriff.domain.outlaw.score import Score
+from thesheriff.application.outlaw.invite_friend import InviteFriend
 
 
 @inject.autoparams()
@@ -164,4 +165,24 @@ def rate_raid_endpoint(outlaw_id: int, raid_id: int) -> Response:
         message = {'status': 201, 'message': 'rated successfully'}
         return jsonify(message)
 
+    @inject.autoparams()
+    def invite_friend_blueprint(invite_friend: InviteFriend) -> Blueprint:
+        """Sends an email to the receiver
+        :param invitar_amigo: Object to invite the receiver
+        :returns: Blueprint
+        """
+
+    @invite_friend.route("/outlaw/invite_friend/", methods=['POST'])
+    def invite_friend(receiver_mail_address: str) -> Response:
+        """Invite friend will receive a mail from a json payload and will send
+        to him an invitation mail to join the app
+        :param
+        :type :
+        :return: Response.
+        """
+        invite_friend.execute(receiver_mail_address)
+        # TODO: Fill json response
+        message = {''}
+        return jsonify(message)
+
     return blueprint_outlaw

thesheriff/infrastructure/repository/smtp_mail_repository.py

@@ -0,0 +1,26 @@
+import smtplib
+import ssl
+from thesheriff.domain.mail.repository.mail_notification \
+    import MailNotification
+
+
+class SMTPMailRepository:
+    global port  # For SSL
+    global context
+    global password
+
+    # Create a secure SSL context
+    port = 465
+    context = ssl.create_default_context()
+    # TODO(all): read the password from an environment variable
+    password = "thesheriff123"
+
+    def __init__(self, mail_repository: MailNotification):
+        self.mail_repository = mail_repository
+
+    def send(self, mail):
+        with smtplib.SMTP_SSL("smtp.gmail.com", port, context=context) \
+                as server:
+            # To send the email, we log into the system with the sender address
+            server.login(mail.sender, password)
+            server.sendmail(mail.sender, mail.receiver, mail.content)