feat: notifier beta

mission/signals.py

@@ -0,0 +1,45 @@
+"""
+Mission domain signals.
+
+Signals are emitted by the mission service layer after successful business
+state transitions. Use transaction.on_commit at send sites so handlers only run
+after the database transaction is committed.
+"""
+
+from django.dispatch import Signal
+
+
+# Payload:
+# - instance: Mission
+# - created_by: Employee
+mission_created = Signal()
+
+# Payload:
+# - instance: MissionReply
+# - mission: Mission
+# - responder: Employee
+mission_replied = Signal()
+
+# Payload:
+# - instance: Mission
+# - completed_by: Employee
+# - reply: MissionReply
+mission_completed = Signal()
+
+# Payload:
+# - instance: MissionReply
+# - mission: Mission
+# - rejected_by: Employee
+# - reason: "reject_reply" | "reopen"
+mission_reply_rejected = Signal()
+
+# Payload:
+# - instance: Mission
+# - reopened_by: Employee
+# - rejected_reply_ids: list[int]
+mission_reopened = Signal()
+
+# Payload:
+# - instance: Mission
+# - cancelled_by: Employee
+mission_cancelled = Signal()