add process model file delete api

src/spiffworkflow_backend/api.yml

@@ -204,7 +204,7 @@ paths:
       tags:
         - Process Groups
       responses:
-        "204":
+        "200":
           description: The process group was deleted.
     put:
       operationId: spiffworkflow_backend.routes.process_api_blueprint.process_group_update
@@ -299,7 +299,7 @@ paths:
       operationId: spiffworkflow_backend.routes.process_api_blueprint.add_file
       summary: Add a new workflow spec file
       tags:
-        - Spec Files
+        - Process Model Files
       requestBody:
         content:
           multipart/form-data:
@@ -320,7 +320,7 @@ paths:
     #   operationId: spiffworkflow_backend.api.process_api_blueprint.get_files
     #   summary: Provide a list of workflow spec files for the given workflow_spec_id. IMPORTANT, only includes metadata, not the file content.
     #   tags:
-    #     - Spec Files
+    #     - Process Model Files
     #   responses:
     #     '200':
     #       description: An array of file descriptions (not the file content)
@@ -366,7 +366,7 @@ paths:
         - Process Models
       responses:
         "200":
-          description: The workflow specification has been removed.
+          description: The process model has been removed.
           content:
             application/json:
               schema:
@@ -743,7 +743,7 @@ paths:
       operationId: spiffworkflow_backend.routes.process_api_blueprint.get_file
       summary: Returns metadata about the file
       tags:
-        - Spec Files
+        - Process Model Files
       responses:
         "200":
           description: Returns the file information requested.
@@ -756,7 +756,7 @@ paths:
       operationId: spiffworkflow_backend.routes.process_api_blueprint.process_model_file_update
       summary: save the contents to the given file
       tags:
-        - Spec Files
+        - Process Model Files
       requestBody:
         description: Log Pagination Request
         required: false
@@ -775,14 +775,18 @@ paths:
             application/json:
               schema:
                 $ref: "#components/schemas/OkTrue"
-    # delete:
-    #   operationId: crc.api.spec_file.delete
-    #   summary: Removes an existing workflow spec file.
-    #   tags:
-    #     - Spec Files
-    #   responses:
-    #     '204':
-    #       description: The file was removed.
+    delete:
+      operationId: spiffworkflow_backend.routes.process_api_blueprint.process_model_file_delete
+      summary: Removes an existing process model file
+      tags:
+        - Process Model Files
+      responses:
+        "200":
+          description: The process model has been removed.
+          content:
+            application/json:
+              schema:
+                $ref: "#components/schemas/OkTrue"
 
   /tasks:
     parameters:

src/spiffworkflow_backend/routes/process_api_blueprint.py

@@ -256,6 +256,25 @@ def process_model_file_update(
     return Response(json.dumps({"ok": True}), status=200, mimetype="application/json")
 
 
+def process_model_file_delete(
+    process_group_id: str, process_model_id: str, file_name: str
+) -> flask.wrappers.Response:
+    """Process_model_file_delete."""
+    process_model = get_process_model(process_model_id, process_group_id)
+    try:
+        SpecFileService.delete_file(process_model, file_name)
+    except FileNotFoundError as exception:
+        raise (
+            ApiError(
+                code="process_model_file_cannot_be_found",
+                message=f"Process model file cannot be found: {file_name}",
+                status_code=400,
+            )
+        ) from exception
+
+    return Response(json.dumps({"ok": True}), status=200, mimetype="application/json")
+
+
 def add_file(process_group_id: str, process_model_id: str) -> flask.wrappers.Response:
     """Add_file."""
     process_model_service = ProcessModelService()

tests/spiffworkflow_backend/integration/test_process_api.py

@@ -446,6 +446,66 @@ class TestProcessApi(BaseTest):
         assert original_file != updated_file
         assert updated_file["file_contents"] == new_file_contents.decode()
 
+    def test_process_model_file_delete_when_bad_process_model(
+        self, app: Flask, client: FlaskClient, with_db_and_bpmn_file_cleanup: None
+    ) -> None:
+        """Test_process_model_file_update."""
+        self.create_spec_file(client)
+
+        spec = load_test_spec("random_fact")
+        user = self.find_or_create_user()
+        response = client.delete(
+            f"/v1.0/process-models/INCORRECT-NON-EXISTENT-GROUP/{spec.id}/file/random_fact.svg",
+            follow_redirects=True,
+            headers=logged_in_headers(user),
+        )
+
+        assert response.status_code == 400
+        assert response.json is not None
+        assert response.json["code"] == "process_model_cannot_be_found"
+
+    def test_process_model_file_delete_when_bad_file(
+        self, app: Flask, client: FlaskClient, with_db_and_bpmn_file_cleanup: None
+    ) -> None:
+        """Test_process_model_file_update."""
+        self.create_spec_file(client)
+
+        spec = load_test_spec("random_fact")
+        user = self.find_or_create_user()
+        response = client.delete(
+            f"/v1.0/process-models/{spec.process_group_id}/{spec.id}/file/random_fact_DOES_NOT_EXIST.svg",
+            follow_redirects=True,
+            headers=logged_in_headers(user),
+        )
+
+        assert response.status_code == 400
+        assert response.json is not None
+        assert response.json["code"] == "process_model_file_cannot_be_found"
+
+    def test_process_model_file_delete(
+        self, app: Flask, client: FlaskClient, with_db_and_bpmn_file_cleanup: None
+    ) -> None:
+        """Test_process_model_file_update."""
+        self.create_spec_file(client)
+
+        spec = load_test_spec("random_fact")
+        user = self.find_or_create_user()
+        response = client.delete(
+            f"/v1.0/process-models/{spec.process_group_id}/{spec.id}/file/random_fact.svg",
+            follow_redirects=True,
+            headers=logged_in_headers(user),
+        )
+
+        assert response.status_code == 200
+        assert response.json is not None
+        assert response.json["ok"]
+
+        response = client.get(
+            f"/v1.0/process-models/{spec.process_group_id}/{spec.id}/file/random_fact.svg",
+            headers=logged_in_headers(user),
+        )
+        assert response.status_code == 404
+
     def test_get_file(
         self, app: Flask, client: FlaskClient, with_db_and_bpmn_file_cleanup: None
     ) -> None: