added protocols for ConversionMetric properties

dbt_semantic_interfaces/protocols/metric.py

@@ -6,7 +6,11 @@
 from dbt_semantic_interfaces.protocols.metadata import Metadata
 from dbt_semantic_interfaces.protocols.where_filter import WhereFilterIntersection
 from dbt_semantic_interfaces.references import MeasureReference, MetricReference
-from dbt_semantic_interfaces.type_enums import MetricType, TimeGranularity
+from dbt_semantic_interfaces.type_enums import (
+    ConversionCalculationType,
+    MetricType,
+    TimeGranularity,
+)
 
 
 class MetricInputMeasure(Protocol):
@@ -113,6 +117,52 @@ def post_aggregation_reference(self) -> MetricReference:
         pass
 
 
+class ConversionTypeParams(Protocol):
+    """Type params to provide context for conversion metrics properties."""
+
+    @property
+    @abstractmethod
+    def base_measure(self) -> MetricInputMeasure:
+        """Measure used to calculate the base event."""
+        pass
+
+    @property
+    @abstractmethod
+    def conversion_measure(self) -> MetricInputMeasure:
+        """Measure used to calculate the conversion event."""
+        pass
+
+    @property
+    @abstractmethod
+    def entity(self) -> str:
+        """Specified join entity."""
+        pass
+
+    @property
+    @abstractmethod
+    def calculation(self) -> ConversionCalculationType:
+        """Type of conversion metric calculation."""
+        pass
+
+    @property
+    @abstractmethod
+    def window(self) -> Optional[MetricTimeWindow]:
+        """Maximum time range for finding successing conversion events."""
+        pass
+
+    @property
+    @abstractmethod
+    def base_measure_reference(self) -> MeasureReference:
+        """Return the measure reference associated with the base measure."""
+        pass
+
+    @property
+    @abstractmethod
+    def conversion_measure_reference(self) -> MeasureReference:
+        """Return the measure reference associated with the conversion measure."""
+        pass
+
+
 class MetricTypeParams(Protocol):
     """Type params add additional context to certain metric types (the context depends on the metric type)."""
 
@@ -157,6 +207,11 @@ def grain_to_date(self) -> Optional[TimeGranularity]:  # noqa: D
     def metrics(self) -> Optional[Sequence[MetricInput]]:  # noqa: D
         pass
 
+    @property
+    @abstractmethod
+    def conversion_type_params(self) -> Optional[ConversionTypeParams]:  # noqa: D
+        pass
+
 
 class Metric(Protocol):
     """Describes a metric."""
@@ -215,3 +270,9 @@ def metadata(self) -> Optional[Metadata]:  # noqa: D
     def label(self) -> Optional[str]:
         """Returns a string representing a human readable label for the metric."""
         pass
+
+    @property
+    @abstractmethod
+    def conversion_params(self) -> ConversionTypeParams:
+        """Accessor for conversion type params, enforces that it's set."""
+        pass

dbt_semantic_interfaces/type_enums/__init__.py

@@ -1,6 +1,9 @@
 from dbt_semantic_interfaces.type_enums.aggregation_type import (  # noqa:F401
     AggregationType,
 )
+from dbt_semantic_interfaces.type_enums.conversion_calculation_type import (  # noqa:F401
+    ConversionCalculationType,
+)
 from dbt_semantic_interfaces.type_enums.dimension_type import DimensionType  # noqa:F401
 from dbt_semantic_interfaces.type_enums.entity_type import EntityType  # noqa:F401
 from dbt_semantic_interfaces.type_enums.metric_type import MetricType  # noqa:F401

dbt_semantic_interfaces/type_enums/conversion_calculation_type.py

@@ -0,0 +1,8 @@
+from dbt_semantic_interfaces.enum_extension import ExtendedEnum
+
+
+class ConversionCalculationType(ExtendedEnum):
+    """Types of calculations for a conversion metric."""
+
+    CONVERSIONS = "conversions"
+    CONVERSION_RATE = "conversion_rate"

dbt_semantic_interfaces/type_enums/metric_type.py

@@ -8,3 +8,4 @@ class MetricType(ExtendedEnum):
     RATIO = "ratio"
     CUMULATIVE = "cumulative"
     DERIVED = "derived"
+    CONVERSION = "conversion"