/// <summary>
/// Solves given equation elements returns solved number as result.
/// </summary>
/// <param name="elements">Equation elements sorce list.</param>
/// <exception cref="EquationIsEmptyException">Thrown when solving equation after been solved is left empty.</exception>
/// <exception cref="EquationNotSolvedProperlyException">Thrown when solving equation after been solved is not composed of one number element.</exception>
private Number No_Bracket_Solver(Equation_Elements elements)
{
foreach (IOperand[] operand_Level in Order_Of_Operations.Operands)
{
for (int operand_index = 0; operand_index < elements.Count; operand_index++)
{
if (elements[operand_index] is IOperand Equation_Operand)
{
foreach (IOperand operand_of_Level in operand_Level)
{
if (operand_of_Level == Equation_Operand)
{
INumber First_Number = (INumber)elements[operand_index - 1];
INumber Seccond_Number = (INumber)elements[operand_index + 1];
INumber Result_Number = _Calculator.Operand_Selector(Equation_Operand, First_Number, Seccond_Number);
Exchange_Solved_to_Simple_Calculated_Value(elements, operand_index, Result_Number);
operand_index--;
}
}
}
}
}
if (elements.Count < 1)
{
throw new EquationIsEmptyException();
}
else if (elements.Count == 1 && elements[0] is Number Result)
{
return(Result);
}
else
{
throw new EquationNotSolvedProperlyException(elements.Recreate_Equation());
}
}
/// <summary>
/// Solves given bracket and returns solved number as result.
/// </summary>
/// <param name="elements">Equation elements sorce list.</param>
/// <param name="Current_Bracket_Pair">Pairs of brackets that inner equation is to be solved.</param>
/// <returns></returns>
private Number Inner_Brackets_Solver(Equation_Elements elements, Bracket_Pair Current_Bracket_Pair)
{
foreach (Bracket_Pair Inner_Bracket_pair in Current_Bracket_Pair.Inner_Brackets)
{
int Index_Of_Open_Bracket = elements.IndexOf(Inner_Bracket_pair.Open_Bracket);
int Lenght_Of_Current_Bracket =
elements.IndexOf(Inner_Bracket_pair.Close_Bracket) - Index_Of_Open_Bracket + 1;
Number Solved_Inner_Bracket = Inner_Brackets_Solver(
new Equation_Elements(elements.GetRange(Index_Of_Open_Bracket + 1, Lenght_Of_Current_Bracket - 2)),
Inner_Bracket_pair
);
Exchange_Solved_Range_to_Calculated_Value(
elements, Index_Of_Open_Bracket, Lenght_Of_Current_Bracket, Solved_Inner_Bracket);
}
Number Result_Of_Current_Bracket;
try
{
Result_Of_Current_Bracket = No_Bracket_Solver(elements);
}
catch (EquationIsEmptyException)
{
IMessage_Box Message_Box = Factory.Get_Message_Box;
Message_Box.Pop_Up($"Something went wrong equation or part of eqaution: {elements.Recreate_Equation()} " +
$"had been solved improperly so \"0\" been pushed as result of shown equation.{Environment.NewLine}" +
"If there is an error in input eqution correct or try write write equation in other way");
Result_Of_Current_Bracket = new Number(0);
}
catch (EquationNotSolvedProperlyException e)
{
IMessage_Box Message_Box = Factory.Get_Message_Box;
Message_Box.Pop_Up($"Something went wrong equation or part of eqaution: {elements.Recreate_Equation()} " +
$"had been solved as \"{e.Message}\" so \"0\" been pushed as result of shown equation.{Environment.NewLine}" +
"If there is an error in input eqution correct or try write write equation in other way");
Result_Of_Current_Bracket = new Number(0);;
}
return(Result_Of_Current_Bracket);
}