public ActionResult <CalculatorValue> ResolveSwitch([FromBody] SwitchPayload payload)
{
if (payload == null)
{
return(BadRequest($"{nameof(ConditionPayload)} cannot be null."));
}
if (payload.ReferenceData == null || !payload.ReferenceData.Any())
{
return(BadRequest($"{nameof(payload.ReferenceData)} cannot be null or empty."));
}
if (_nullValidator.Validate(payload.ComparingValue))
{
return(BadRequest($"{nameof(payload.ComparingValue)} cannot be null."));
}
var switchData = GetSwitchData(payload);
ISwitch <CalculatorValue> resolver = new Switch <int>(switchData, payload.DefaultValue);
var result = resolver.Evaluate(payload.ComparingValue);
var operationResult = new Result <decimal>()
{
CorrelationId = payload.CorrelationId, Value = result
};
return(Ok(operationResult));
}
private Dictionary <IOrderedCondition <int, CalculatorValue>, decimal> GetSwitchData(SwitchPayload payload)
{
var result = new Dictionary <IOrderedCondition <int, CalculatorValue>, decimal>();
foreach (var item in payload.ReferenceData)
{
if (item.Conditions == null || !item.Conditions.Any())
{
continue;
}
var conditions = item.Conditions
.Where(condition => condition?.ReferenceValue != null)
.Select(mConditionItem => new Condition(mConditionItem.ReferenceValue, mConditionItem.Operator))
.Cast <ICondition <CalculatorValue> >();
var multiCondition = new MultiCondition(conditions, BooleanOperator.And);
var orderedCondition = new OrderedCondition(multiCondition, item.Order);
result.Add(orderedCondition, item.Value);
}
return(result);
}
