private async Task <KeyValuePair <string, double> > CaculateOperandAsync(Operand operand, VariableSet variableSet)
{
Console.WriteLine("Break at: " + operand.Name + operand.Expression);
foreach (var item in variableSet)
{
Console.WriteLine(item.VariableName + item.Value);
}
KeyValuePair <string, double> result = new KeyValuePair <string, double>();
if (operand.Type == (int)OperandTypeValue.EXPRESSION || operand.Type == (int)OperandTypeValue.GROUP_VALUE)
{
var ep = new ExpressionParser();
var compiledExpression = ep.Parse(operand.Expression);
var resultStack = compiledExpression.Evaluate(variableSet);
double value = Convert.ToDouble(resultStack.Pop().GetValue());
if (operand.Type == (int)OperandTypeValue.EXPRESSION)
{
operand.Value = value;
result = new KeyValuePair <string, double>(operand.Name, operand.Value);
}
else if (operand.Type == (int)OperandTypeValue.GROUP_VALUE)
{
await _context.Entry(operand).Collection(x => x.GroupValues).LoadAsync();
var gropValues = operand.GroupValues.Where(x => x.Max > value).OrderBy(c => c.Max).ToList();
if (gropValues.Count() != 0)
{
compiledExpression = ep.Parse(gropValues[0].Value);
resultStack = compiledExpression.Evaluate(variableSet);
value = Convert.ToDouble(resultStack.Pop().GetValue());
Console.WriteLine("Add: " + operand.Name);
result = new KeyValuePair <string, double>(operand.Name, value);
}
}
}
else if (operand.Type == (int)OperandTypeValue.STATIC)
{
result = new KeyValuePair <string, double>(operand.Name, operand.Value);
}
return(result);
}
private async Task <VariableSet> GetOperandChildsAsync(Operand parent, VariableSet variableSet)
{
KeyValuePair <string, double> result;
await _context.Entry(parent).Collection(x => x.Childs).Query().LoadAsync();
var childs = parent.Childs;
if (childs.Count > 1)
{
//caculate child
for (int i = 1; i < childs.Count; i++)
{
Console.WriteLine("i: " + i);
await GetOperandChildsAsync(childs.ElementAt(i), variableSet);
}
//caculate parent
result = await CaculateOperandAsync(parent, variableSet);
Console.WriteLine(result.Key + " " + result.Value);
if (variableSet.Where(x => x.VariableName.Equals(result.Key)).FirstOrDefault() == null)
{
variableSet.RegisterVariable(OperandType.Double, result.Key, result.Value);
}
return(variableSet);
}
else
{
result = await CaculateOperandAsync(parent, variableSet);
Console.WriteLine(result.Key + " " + result.Value);
if (variableSet.Where(x => x.VariableName.Equals(result.Key)).FirstOrDefault() == null)
{
variableSet.RegisterVariable(OperandType.Double, result.Key, result.Value);
}
}
return(variableSet);
}