add mail module

core/mail/models.py

@@ -0,0 +1,34 @@
+import random
+
+from django.db import models
+from django_softdelete.models import SoftDeleteModel
+
+from core.settings import MAIL_DOMAIN
+from inventory.models import Event
+from tickets.models import IssueThread
+
+
+class Email(SoftDeleteModel):
+    id = models.AutoField(primary_key=True)
+    timestamp = models.DateTimeField(auto_now_add=True)
+    body = models.TextField()
+    subject = models.CharField(max_length=255)
+    sender = models.CharField(max_length=255)
+    recipient = models.CharField(max_length=255)
+    reference = models.CharField(max_length=255, null=True, unique=True)
+    in_reply_to = models.CharField(max_length=255, null=True)
+    raw = models.TextField()
+    issue_thread = models.ForeignKey(IssueThread, models.SET_NULL, null=True, related_name='emails')
+    event = models.ForeignKey(Event, models.SET_NULL, null=True)
+
+    def save(self, *args, **kwargs):
+        super().save(*args, **kwargs)
+        if not self.reference:
+            self.reference = f'<{random.randint(0, 1000000000):09}@{MAIL_DOMAIN}>'
+            self.save()
+
+
+class EventAddress(models.Model):
+    id = models.AutoField(primary_key=True)
+    event = models.ForeignKey(Event, models.SET_NULL, null=True)
+    address = models.CharField(max_length=255)