Align ows:Title, Identifier and Abstract in WMTS GetCapabilities

Author: jverrydt

titiler/stacapi/factory.py

@@ -586,15 +586,17 @@ def get_layer_from_collections(  # noqa: C901
                 tilematrixsets = render.pop("tilematrixsets", None)
                 output_format = render.pop("format", None)
                 aggregation = render.pop("aggregation", None)
+                title = render.pop("title", None)
 
                 _ = render.pop("minmax_zoom", None)  # Not Used
                 _ = render.pop("title", None)  # Not Used
 
                 # see https://github.com/developmentseed/eoAPI-vito/issues/9#issuecomment-2034025021
-                render_title = f"{collection.id}_{name}"
+                render_id = f"{collection.id}_{name}"
                 layer = {
-                    "id": render_title,
+                    "id": render_id,
                     "collection": collection.id,
+                    "title": title,
                     "bbox": [-180, -90, 180, 90],
                     "style": "default",
                     "render": render,
@@ -707,9 +709,10 @@ def get_layer_from_collections(  # noqa: C901
                 )
                 layer["query_string"] = str(qs)
 
-                layers[render_title] = LayerDict(
+                layers[render_id] = LayerDict(
                     id=layer["id"],
                     collection=layer["collection"],
+                    title=layer.get("title"),
                     bbox=layer["bbox"],
                     format=layer.get("format"),
                     style=layer["style"],

titiler/stacapi/models.py

@@ -114,6 +114,7 @@ class LayerDict(TypedDict, total=False):
 
     id: str
     collection: str
+    title: Optional[str]
     bbox: List[float]
     format: Optional[str]
     style: str

titiler/stacapi/templates/wmts-getcapabilities_1.0.0.xml

@@ -57,12 +57,13 @@
   <Contents>
   {% for layer in layers %}
     <Layer>
-      <ows:Title>{{ layer.title or layer.id }}</ows:Title>
+      <ows:Title>{{ layer.id }}</ows:Title>
+      <ows:Abstract>{{ layer.title }}</ows:Abstract>
       <ows:WGS84BoundingBox>
         <ows:LowerCorner>{{ layer.bbox[0] }} {{ layer.bbox[1] }}</ows:LowerCorner>
         <ows:UpperCorner>{{ layer.bbox[2] }} {{ layer.bbox[3] }}</ows:UpperCorner>
       </ows:WGS84BoundingBox>
-      <ows:Identifier>{{ layer.id or layer.title }}</ows:Identifier>
+      <ows:Identifier>{{ layer.id }}</ows:Identifier>
       <Style isDefault="true">
         <ows:Title>default</ows:Title>
         <ows:Identifier>default</ows:Identifier>