Initialize Edevs Hub repository

apps/backend/hub_platform/events/models.py

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+import uuid
+
+from django.db import models
+from django.utils import timezone
+
+
+class OutboxStatus(models.TextChoices):
+    PENDING = "PENDING", "Pending"
+    PROCESSING = "PROCESSING", "Processing"
+    PROCESSED = "PROCESSED", "Processed"
+    FAILED = "FAILED", "Failed"
+    DEAD_LETTER = "DEAD_LETTER", "Dead letter"
+
+
+class OutboxEvent(models.Model):
+    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+    aggregate_type = models.CharField(max_length=128)
+    aggregate_id = models.CharField(max_length=128)
+    event_type = models.CharField(max_length=128)
+    payload = models.JSONField(default=dict)
+    status = models.CharField(
+        max_length=32,
+        choices=OutboxStatus.choices,
+        default=OutboxStatus.PENDING,
+        db_index=True,
+    )
+    attempts = models.PositiveIntegerField(default=0)
+    next_attempt_at = models.DateTimeField(default=timezone.now, db_index=True)
+    correlation_id = models.CharField(max_length=128, blank=True)
+    last_error = models.TextField(blank=True)
+    created_at = models.DateTimeField(auto_now_add=True)
+    processed_at = models.DateTimeField(null=True, blank=True)
+
+    class Meta:
+        ordering = ["created_at"]
+        indexes = [
+            models.Index(fields=["status", "next_attempt_at"]),
+            models.Index(fields=["aggregate_type", "aggregate_id"]),
+        ]
+
+    def __str__(self) -> str:
+        return f"{self.event_type}:{self.id}"
+
+
+class InboxEvent(models.Model):
+    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+    source = models.CharField(max_length=128)
+    external_event_id = models.CharField(max_length=256)
+    payload_hash = models.CharField(max_length=128)
+    received_at = models.DateTimeField(auto_now_add=True)
+    processed_at = models.DateTimeField(null=True, blank=True)
+
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(
+                fields=["source", "external_event_id"],
+                name="uniq_inbox_source_external_event_id",
+            )
+        ]
+
+    def __str__(self) -> str:
+        return f"{self.source}:{self.external_event_id}"