KDP-1528 initial implementation of the EDR spec

src/edr_pydantic_classes/collections.py

@@ -0,0 +1,43 @@
+from __future__ import annotations
+
+from typing import List
+from typing import Optional
+
+from .data_queries import DataQueries
+from .extent import Extent
+from .link import Link
+from .my_base_model import EDRBaseModel
+from .parameter import ParameterNames
+
+
+# TODO instances or collections as base?
+class Collection(EDRBaseModel):
+    links: List[Link]
+    id: str
+    extent: Extent
+    parameter_names: ParameterNames
+    title: Optional[str] = None
+    description: Optional[str] = None
+    keywords: Optional[List[str]] = None
+    data_queries: Optional[DataQueries] = None
+    # TODO required according to A.13, string array or crs object?
+    crs: Optional[List[str]] = None
+    # TODO in req as f?
+    output_formats: Optional[List[str]] = None
+    # TODO may have distanceunits, if radius is in link, it shall have distanceunits
+    distanceunits: Optional[List[str]] = None
+
+
+class CollectionsModel(EDRBaseModel):
+    links: List[Link]
+    collections: List[Collection]
+
+
+class InstancesModel(EDRBaseModel):
+    links: List[Link]
+    instances: List[Instance]
+
+
+# For now, the instance metadata corresponds to the first collection metadata. So they have equal classes
+class Instance(Collection):
+    pass