// TODO: Make Functional
public async Task <ResponseContext <IList <PuzzleSolution> > > SolvePuzzle()
{
var matrix = await GetMatrix();
var wordData = await PuzzleWords.GetAllAsync(c => c.Id, 0, null);
IList <PuzzleSolution> solutions = new List <PuzzleSolution>();
foreach (var word in wordData.Result)
{
var solution = FindWord(word, matrix.Result);
if (solution.IsSuccess)
{
solutions.Add(solution);
}
else
{
solutions.Add(new PuzzleSolution()
{
Word = word.Word, Breakdown = new List <PuzzleMatrix>()
});
}
}
return(ResponseContext.Ok(solutions));
}
public static ResponseContext <K> Return <T, K>(this ResponseContext <T> result, Func <K> func)
{
if (result.IsFailure)
{
return(result.HasException ? ResponseContext.Fail <K>(result.InnerException) : ResponseContext.Fail <K>(result.Error, result.ErrorType));
}
return(ResponseContext.Ok(func()));
}
public static ResponseContext <K> Map <T, K>(this ResponseContext <T> response, Func <ResponseContext <T>, ResponseContext <K> > func)
{
if (response.IsFailure)
{
return(response.HasException ? ResponseContext.Fail <K>(response.InnerException) : ResponseContext.Fail <K>(response.Error, response.ErrorType));
}
return(ResponseContext.Ok(func(response)));
}
public static async Task <ResponseContext <K> > ReturnAsync <T, K>(this Task <ResponseContext <T> > response, Func <K> func)
{
var @this = await response;
if (@this.IsFailure)
{
return(@this.HasException ? ResponseContext.Fail <K>(@this.InnerException) : ResponseContext.Fail <K>(@this.Error, @this.ErrorType));
}
return(ResponseContext.Ok(func()));
}
// TODO: Make Functional
public async Task <ResponseContext <IList <PuzzleMatrix> > > GetMatrix()
{
var cypherData = await Cyphers.GetAllAsync(c => c.Id, 0, null);
var solvedCyphers = new List <string>();
foreach (var cypher in cypherData.Result)
{
var markov = await Cyphers.SolveMarkov(cypher.Id);
if (markov.IsSuccess)
{
solvedCyphers.Add(markov.Result);
}
}
IList <PuzzleMatrix> matrix = new List <PuzzleMatrix>();
var j = 0;
foreach (var markov in solvedCyphers)
{
j++;
var i = 0;
foreach (var character in markov.ToCharArray())
{
i++;
matrix.Add(new PuzzleMatrix()
{
Row = j, Column = i, Character = character
});
}
}
return(ResponseContext.Ok(matrix));
}
public async Task <ResponseContext <string> > SolveMarkov(int cypherId)
{
string cypher = "";
return(await GetByIdAsync(c => c.Id == cypherId).MapAsync(cypherData =>
{
return ((WithId(cypherId).Schemes.GetAllReplacementRules(s => s.OrderId, 0, null).MapAsync(schemeData =>
{
cypher = cypherData.CypherText;
var schemeLength = schemeData.Count;
var solved = false;
do
{
var i = 0;
var original = cypher;
foreach (var scheme in schemeData)
{
i++;
cypher = cypher.Replace(scheme.ReplacementRule.Source, scheme.ReplacementRule.Replacement);
if (cypher != original)
{
if (scheme.IsTermination)
{
solved = true;
}
break;
}
else if (i == schemeLength)
{
solved = true;
break;
}
}
} while (!solved);
return cypher;
})));
})
.ReturnAsync(() => ResponseContext.Ok(cypher)));
/// ****************************************************************************
///
/// The Non-Functional way has the characteristic that should
/// any part of the process error out, the message would
/// NOT boil up all the way to the UI.
///
/// The Functional way, on the other hand, allows for the processes
/// to continue their normal course down their happy paths,
/// but catches all failures on any of the unhappy paths
/// and bubbles them up to the UI effortlessly.
///
/// As an exercise, comment the code above and uncomment the code bellow,
/// then try to make a request for Cypher #15 (which does not exist).
/// Check the outputs.
///
/// ****************************************************************************
#region Non-Functional Way
//var cypherData = await GetByIdAsync(c => c.Id == cypherId);
//var schemeData = await WithId(cypherId).Schemes.GetAllReplacementRules(s => s.OrderId, 0, null);
//var cypher = cypherData.Result.CypherText;
//var schemeLength = schemeData.RecordCount;
//var solved = false;
//do
//{
// var i = 0;
// var original = cypher;
// foreach (var scheme in schemeData.Result)
// {
// i++;
// cypher = cypher.Replace(scheme.ReplacementRule.Source, scheme.ReplacementRule.Replacement);
// if (cypher != original)
// {
// if (scheme.IsTermination)
// solved = true;
// break;
// }
// else if (i == schemeLength)
// {
// solved = true;
// break;
// }
// }
//} while (!solved);
//return ResponseContext.Ok(cypher);
#endregion
}