Ewm4848 migrate to run number dao for backend validation

src/snapred/backend/dao/state/RunNumber.py

@@ -0,0 +1,26 @@
+from pydantic import BaseModel, Field, validator
+
+from snapred.backend.log.logger import snapredLogger
+from snapred.meta.validator.RunNumberValidator import RunNumberValidator
+
+logger = snapredLogger.getLogger(__name__)
+
+
+class RunNumber(BaseModel):
+    runNumber: int = Field(..., description="The run number provided by the user for reduction.")
+
+    @validator("runNumber", pre=True, always=True)
+    def validateRunNumber(cls, value):
+        # Check if run number is an integer
+        if not isinstance(value, int):
+            logger.error("Run number must be an integer.")
+            raise ValueError("Run number must be an integer. Please enter a valid run number.")
+
+        # Use RunNumberValidator to check the minimum run number and cached data existence
+        if not RunNumberValidator.validateRunNumber(str(value)):
+            logger.error("Run number does not meet the minimum required value or does not have cached data available.")
+            raise ValueError(
+                "Run number is below the minimum value or data does not exist. Please enter a valid run number."
+            )
+
+        return value