core: services: kraken: api: Add version fetch

* Allow fetch versions available for a given extension from a given
  manifest or consolidated using manifest API

Author: joaomariolago

core/services/kraken/api/v2/routers/manifest.py

@@ -66,6 +66,17 @@ async def fetch_by_identifier(identifier: str, data: bool = True) -> Manifest:
     return await manifest_manager.fetch_by_identifier(identifier, data)
 
 
+@manifest_router_v2.get("/{identifier}/details/{extension_identifier}/tags", status_code=status.HTTP_200_OK)
+@manifest_to_http_exception
+async def fetch_ext_tags_by_identifier(identifier: str, extension_identifier: str, stable: bool = False) -> list[str]:
+    """
+    Get all tags for a given extension identifier using one manifest as source.
+    """
+
+    versions = await manifest_manager.fetch_extension_versions(extension_identifier, stable, identifier)
+
+    return [ str(version) for version in versions ]
+
 @manifest_router_v2.get("/consolidated", status_code=status.HTTP_200_OK)
 @manifest_to_http_exception
 async def fetch_consolidated() -> list[RepositoryEntry]:
@@ -76,6 +87,17 @@ async def fetch_consolidated() -> list[RepositoryEntry]:
     return await manifest_manager.fetch_consolidated()
 
 
+@manifest_router_v2.get("/consolidated/details/{extension_identifier}/tags", status_code=status.HTTP_200_OK)
+@manifest_to_http_exception
+async def fetch_ext_tags_by_consolidated(extension_identifier: str, stable: bool = False) -> list[str]:
+    """
+    Get all tags for a given extension identifier using consolidated manifest as source.
+    """
+    versions = await manifest_manager.fetch_extension_versions(extension_identifier, stable)
+
+    return [ str(version) for version in versions ]
+
+
 @manifest_router_v2.post("/", status_code=status.HTTP_201_CREATED)
 @manifest_to_http_exception
 async def create(body: ManifestSource, validate_url: bool = True) -> Manifest: