fix: don't raise error when missing time series on token collection

When collecting the tokens from time series collection, we don't want to
raise an error since that would limit the information we get from
validation. Instead we want to collect the tokens we can, then validate
the model based on that context. The errors will still give information
about a missing resource, but also additional information, and file
context.

src/libecalc/presentation/yaml/domain/time_series_collections.py

@@ -1,4 +1,5 @@
 from datetime import datetime
+from typing import Self
 
 from libecalc.presentation.yaml.domain.time_series import TimeSeries
 from libecalc.presentation.yaml.domain.time_series_collection import TimeSeriesCollection
@@ -17,7 +18,38 @@ class TimeSeriesCollections(TimeSeriesProvider):
     steps in all collections.
     """
 
-    def __init__(self, time_series: list[YamlTimeSeriesCollection], resources: dict[str, Resource]):
+    def __init__(self, time_series_collections: dict[str, TimeSeriesCollection]):
+        self._time_series_collections = time_series_collections
+
+    def get_time_series_references(self) -> list[str]:
+        time_series_references = []
+        for collection in self._time_series_collections.values():
+            for time_series_reference in collection.get_time_series_references():
+                time_series_references.append(f"{collection.name};{time_series_reference}")
+        return time_series_references
+
+    def get_time_series(self, time_series_id: str) -> TimeSeries:
+        reference_id_parts = time_series_id.split(";")
+        if len(reference_id_parts) != 2:
+            raise TimeSeriesNotFound(time_series_id)
+        [collection_id, time_series_id] = reference_id_parts
+
+        if collection_id not in self._time_series_collections:
+            raise TimeSeriesNotFound(time_series_id)
+
+        return self._time_series_collections[collection_id].get_time_series(time_series_id)
+
+    def get_time_vector(self) -> set[datetime]:
+        time_vector: set[datetime] = set()
+        for time_series_collection in self._time_series_collections.values():
+            if time_series_collection.should_influence_time_vector():
+                time_vector = time_vector.union(time_series_collection.get_time_vector())
+        return time_vector
+
+    @classmethod
+    def create(
+        cls, time_series: list[YamlTimeSeriesCollection], resources: dict[str, Resource], raise_on_error: bool = True
+    ) -> tuple[Self, list[ModelValidationError]]:
         time_series_collections: dict[str, TimeSeriesCollection] = {}
         errors: list[ModelValidationError] = []
         for time_series_collection in time_series:
@@ -52,32 +84,7 @@ def __init__(self, time_series: list[YamlTimeSeriesCollection], resources: dict[
                         for error in e.errors()
                     ]
                 )
-        if len(errors) != 0:
+        if raise_on_error and len(errors) != 0:
             raise ModelValidationException(errors=errors)
 
-        self._time_series_collections = time_series_collections
-
-    def get_time_series_references(self) -> list[str]:
-        time_series_references = []
-        for collection in self._time_series_collections.values():
-            for time_series_reference in collection.get_time_series_references():
-                time_series_references.append(f"{collection.name};{time_series_reference}")
-        return time_series_references
-
-    def get_time_series(self, time_series_id: str) -> TimeSeries:
-        reference_id_parts = time_series_id.split(";")
-        if len(reference_id_parts) != 2:
-            raise TimeSeriesNotFound(time_series_id)
-        [collection_id, time_series_id] = reference_id_parts
-
-        if collection_id not in self._time_series_collections:
-            raise TimeSeriesNotFound(time_series_id)
-
-        return self._time_series_collections[collection_id].get_time_series(time_series_id)
-
-    def get_time_vector(self) -> set[datetime]:
-        time_vector: set[datetime] = set()
-        for time_series_collection in self._time_series_collections.values():
-            if time_series_collection.should_influence_time_vector():
-                time_vector = time_vector.union(time_series_collection.get_time_vector())
-        return time_vector
+        return cls(time_series_collections), errors

src/libecalc/presentation/yaml/model.py

@@ -122,7 +122,11 @@ def end(self) -> Optional[datetime]:
         return self._configuration.end
 
     def _get_time_series_collections(self) -> TimeSeriesCollections:
-        return TimeSeriesCollections(time_series=self._configuration.time_series, resources=self.resources)
+        time_series_collections, err = TimeSeriesCollections.create(
+            time_series=self._configuration.time_series, resources=self.resources
+        )
+        assert len(err) == 0
+        return time_series_collections
 
     def _get_time_vector(self):
         return get_global_time_vector(
@@ -158,7 +162,11 @@ def get_graph(self) -> ComponentGraph:
         return self._graph
 
     def _get_token_references(self, yaml_model: YamlValidator) -> list[str]:
-        token_references = self._get_time_series_collections().get_time_series_references()
+        # Only get references for valid time series collections
+        time_series_collections, _ = TimeSeriesCollections.create(
+            time_series=self._configuration.time_series, resources=self.resources, raise_on_error=False
+        )
+        token_references = time_series_collections.get_time_series_references()
 
         for reference in yaml_model.variables:
             token_references.append(f"$var.{reference}")