initial commit

Signed-off-by: Pradyumn Chauhan <[email protected]>

Author: PradyumnChauhan

docs/api/origin-curation-api.rst

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+.. _origin_curation_api:
+
+Origin Curation API
+===================
+
+The origin curation API extends the project endpoints with helpers to list,
+create, update, and bulk-curate ``CodebaseRelation`` entries. Every endpoint
+is nested under a project resource:
+
+.. code-block:: text
+
+    /api/projects/<project_uuid>/relations/
+
+Authentication
+--------------
+
+All endpoints require the same authentication and permission settings as the
+core API. When ``REQUIRE_AUTHENTICATION`` is enabled, include the API token in
+the ``Authorization`` header::
+
+    Authorization: Token <your-token>
+
+Listing relations
+-----------------
+
+``GET /api/projects/<uuid>/relations/``
+
+Returns a paginated list of relations for the project. Results can be filtered
+using the parameters provided by :class:`RelationFilterSet`:
+
+``search``
+    Full text search on the ``to_resource.path``.
+``map_type``
+    Filter by relation map type (for example ``java_to_class``).
+``status``
+    Status of the ``to_resource`` (``requires-review``, ``ok``, etc.).
+``curation_status``
+    One of ``pending``, ``approved``, or ``rejected``.
+``confidence_level``
+    One of ``low``, ``medium``, ``high``, or ``verified``.
+``curated_by``
+    Username of the curator (partial match).
+``requires_review``
+    Boolean flag to return relations whose ``to_resource`` status is
+    ``requires-review``.
+
+Example:
+
+.. code-block:: console
+
+    curl -X GET \
+      "http://localhost:8001/api/projects/4f3f.../relations/?curation_status=pending&requires_review=true" \
+      -H "Authorization: Token abc123"
+
+Sample response:
+
+.. code-block:: json
+
+    {
+      "count": 2,
+      "next": null,
+      "previous": null,
+      "results": [
+        {
+          "uuid": "f3d9cfcd-7627-478b-91cb-a2d553b79db9",
+          "to_resource": "to/com/example/App.class",
+          "status": "requires-review",
+          "map_type": "java_to_class",
+          "score": "0.87 diff_ratio: 0.12",
+          "from_resource": "from/src/main/java/com/example/App.java",
+          "curation_status": "pending",
+          "confidence_level": "medium",
+          "curation_notes": "Automated detection, needs review",
+          "curated_by": "admin",
+          "curated_at": "2025-11-11T06:12:48.912345Z"
+        }
+      ]
+    }
+
+Creating a relation
+-------------------
+
+``POST /api/projects/<uuid>/relations/``
+
+Required fields:
+
+``from_resource_path``
+    Path of the source resource within the project.
+``to_resource_path``
+    Path of the target resource within the project.
+``map_type``
+    Relation category (for example ``java_to_class`` or ``checksum_match``).
+
+Optional fields:
+
+``curation_status`` ``confidence_level`` ``curation_notes``
+    Set initial curation metadata. When provided, an ``OriginCuration`` record
+    is automatically created.
+
+.. code-block:: json
+
+    {
+      "from_resource_path": "from/src/main/java/com/example/Service.java",
+      "to_resource_path": "to/com/example/Service.class",
+      "map_type": "java_to_class",
+      "curation_status": "approved",
+      "confidence_level": "high",
+      "curation_notes": "Reviewed manually"
+    }
+
+Updating or deleting a relation
+-------------------------------
+
+``GET /api/projects/<uuid>/relations/<relation_uuid>/``
+``PATCH /api/projects/<uuid>/relations/<relation_uuid>/``
+``DELETE /api/projects/<uuid>/relations/<relation_uuid>/``
+
+PATCH accepts the same payload as the creation endpoint. When curation fields
+change, a new ``OriginCuration`` history row is added.
+
+.. code-block:: console
+
+    curl -X PATCH \
+      "http://localhost:8001/api/projects/4f3f.../relations/f3d9cfcd-7627-478b-91cb-a2d553b79db9/" \
+      -H "Authorization: Token abc123" \
+      -H "Content-Type: application/json" \
+      -d '{"curation_status": "approved", "confidence_level": "verified"}'
+
+Bulk curation
+-------------
+
+``POST /api/projects/<uuid>/relations/bulk-curate/``
+
+Payload structure:
+
+``relation_uuids`` *(list, required)*
+    Array of relation UUIDs to update.
+``action`` *(string, required)*
+    One of ``approve``, ``reject``, ``mark_pending``, or ``set_confidence``.
+``confidence_level`` *(string, required when action is ``set_confidence``)*
+    Confidence level to apply.
+``curation_notes`` *(string, optional)*
+    Notes appended to each relation (preserved across updates).
+
+Example:
+
+.. code-block:: json
+
+    {
+      "relation_uuids": [
+        "f3d9cfcd-7627-478b-91cb-a2d553b79db9",
+        "a49036e2-f0c0-4104-9d9d-00ba578d72f6"
+      ],
+      "action": "approve",
+      "curation_notes": "Reviewed with upstream team"
+    }
+
+Successful responses include the count of updated relations and per-relation
+history entries are written automatically.
+
+Field reference
+---------------
+
+Returned ``CodebaseRelation`` objects contain:
+
+``uuid``
+    Stable identifier for the relation.
+``from_resource`` ``to_resource``
+    Resource paths represented as strings.
+``map_type``
+    Relation mapping category.
+``status``
+    The ``to_resource.status`` value, exposed for convenience.
+``score``
+    Human-readable hint compiled from ``extra_data`` (for example similarity
+    or diff metrics). Blank when no score is available.
+``curation_status`` ``confidence_level`` ``curation_notes``
+    Latest curation metadata.
+``curated_by`` ``curated_at``
+    Username and timestamp of the most recent curation update.
+
+Error handling
+--------------
+
+Errors return a JSON object with a ``message`` key and the HTTP status code
+appropriate to the failure (400 for validation issues, 404 when a relation
+cannot be found, etc.). Examples:
+
+.. code-block:: json
+
+    {
+      "message": "relation_uuids is required."
+    }
+
+    {
+      "message": {
+        "from_resource_path": ["Resource not found: from/src/missing.java"]
+      }
+    }
+
+
+
+