Complete Postbox access transition matrix

src/govoplan_postbox/backend/schemas.py

@@ -6,6 +6,14 @@ from typing import Any, Literal
 from pydantic import BaseModel, Field, model_validator
 
 
+PostboxClassification = Literal[
+    "public",
+    "internal",
+    "confidential",
+    "restricted",
+]
+
+
 class PostboxAccessDecisionResponse(BaseModel):
     allowed: bool
     action: str
@@ -19,6 +27,9 @@ class PostboxAccessDecisionResponse(BaseModel):
     selected_assignment_id: str | None = None
     holder_count: int = 0
     vacant: bool = True
+    classification: str = "internal"
+    classification_allowed: bool = True
+    binding_status: str = "active"
 
 
 class PostboxDirectoryItem(BaseModel):
@@ -132,7 +143,7 @@ class PostboxDeliveryCreateRequest(BaseModel):
     subject: str = Field(min_length=1, max_length=1000)
     body_text: str | None = None
     sender_label: str | None = Field(default=None, max_length=500)
-    classification: str = Field(default="internal", min_length=1, max_length=50)
+    classification: PostboxClassification = "internal"
     participants: list[PostboxParticipantPayload] = Field(default_factory=list)
     attachments: list[PostboxAttachmentPayload] = Field(default_factory=list)
     expires_at: datetime | None = None
@@ -161,7 +172,7 @@ class PostboxLinkedCopyPolicyPayload(BaseModel):
     target_function_type_id: str | None = Field(default=None, max_length=36)
     target_template_id: str | None = Field(default=None, max_length=36)
     fanout: Literal["nearest", "all"] = "nearest"
-    allowed_classifications: list[str] = Field(
+    allowed_classifications: list[PostboxClassification] = Field(
         default_factory=lambda: ["internal"],
         max_length=20,
     )
@@ -275,7 +286,7 @@ class PostboxRoutePreviewTarget(BaseModel):
 class PostboxRouteDryRunRequest(BaseModel):
     target: PostboxTargetPayload
     producer_module: str = Field(min_length=1, max_length=100)
-    classification: str = Field(default="internal", min_length=1, max_length=50)
+    classification: PostboxClassification = "internal"
     expires_at: datetime | None = None
 
 
@@ -295,7 +306,7 @@ class PostboxExactCreateRequest(BaseModel):
     organization_unit_id: str = Field(min_length=1, max_length=36)
     function_id: str = Field(min_length=1, max_length=36)
     address_key: str | None = Field(default=None, max_length=120)
-    classification: str = Field(default="internal", min_length=1, max_length=50)
+    classification: PostboxClassification = "internal"
 
 
 class PostboxTemplateRevisionPayload(BaseModel):
@@ -312,7 +323,7 @@ class PostboxTemplateRevisionPayload(BaseModel):
         min_length=1,
         max_length=500,
     )
-    classification: str = Field(default="internal", min_length=1, max_length=50)
+    classification: PostboxClassification = "internal"
     allow_vacant_delivery: bool = True
     routing_policy: PostboxRoutingPolicyPayload = Field(
         default_factory=PostboxRoutingPolicyPayload