/// <summary>
/// This gathers the last Ten Days of a Symbol Price History by minute and combines it with previously stored data.
/// It rights the combined results to the TradeData folder
/// </summary>
/// <param name="client">HttpClient with OAuth Header</param>
/// <param name="apiKey">TDAmeritrade API Application Key</param>
/// <param name="symbol">Market (Stock) Symbol Case Sensitive</param>
/// <param name="historyPath">Program Data Path (Configurable)</param>
/// <param name="deleteAllFilesOtherThenNewAndSourceofTruth">If true after combining all the data files
/// attempt to delete all the files except for the previously source of true and the newly combined price history.
/// Unfortunately if there are not new updates to the price history it deletes all previous sources of truth</param>
/// <returns>The new combined file path</returns>
public static string UpdateStockByMinuteHistoryFile(HttpClient client, string apiKey, string symbol, string historyPath, bool deleteAllFilesOtherThenNewAndSourceofTruth = false)
{
//Get Latest by Minute data
string newStorageFile = Gather10daysByTheMinute(client, apiKey, symbol, historyPath);
//Get Files to Combine
string storageFolderPath = getSymbolsPriceHistoryPath(historyPath, symbol, "ByMinute");
List <QuoteFile> priceByMinuteFiles = ReadWriteJSONToDisk.getQuotesFileListFromDirectory(storageFolderPath);
//Combine Files
List <Quote> NewQuoteList = new List <Quote>();
foreach (QuoteFile file in priceByMinuteFiles)
{
List <Quote> filesQuotes = ReadWriteJSONToDisk.getQuotesFromJSON(file.path);
NewQuoteList = CombineQuoteLists(NewQuoteList, filesQuotes);
}
//write quoteList
string quoteFileName = getFileNameForPriceHistory(NewQuoteList, true);
string saveFilePath = $"{storageFolderPath}\\{quoteFileName}";
//save File
ReadWriteJSONToDisk.writeDataAsJSON(saveFilePath, NewQuoteList);
//delete old files
if (deleteAllFilesOtherThenNewAndSourceofTruth)
{
QuoteFile oldSourceOfTruth = ChooseSourceOfTruthFile(priceByMinuteFiles);
List <QuoteFile> filesToDelete = priceByMinuteFiles.Where(q => q.info.Name != oldSourceOfTruth.info.Name).ToList();
int filesDeleted = ReadWriteJSONToDisk.deleteFiles(filesToDelete);
}
//return new file path
return(saveFilePath);
}
public virtual QuoteFile CreateRandomFile(Identifiers allowedIdentifiers, int lineCount)
{
var quoteFile = new QuoteFile();
var randomQuotes = this.QuoteFactory.CreateListOfRandomQuotes(allowedIdentifiers, lineCount);
quoteFile.AddRange(randomQuotes);
return quoteFile;
}
public virtual QuoteFile CreateRandomFile(Identifiers allowedIdentifiers, int lineCount)
{
var quoteFile = new QuoteFile();
var randomQuotes = this.QuoteFactory.CreateListOfRandomQuotes(allowedIdentifiers, lineCount);
quoteFile.AddRange(randomQuotes);
return(quoteFile);
}
/// <summary>
/// Attempts to pick the file that goes back the farthest and contains the most data from a list of QuoteFiles
/// </summary>
/// <param name="files">Quote Files (pertaining to a specific symbol at a specific frequency</param>
/// <returns></returns>
public static QuoteFile ChooseSourceOfTruthFile(List <QuoteFile> files)
{
string firststartDate = files.Select(s => s.startDate).Min();
List <QuoteFile> filesWithMinStartDate = files.Where(q => q.startDate == firststartDate).ToList();
if (filesWithMinStartDate.Count == 1)
{
return(filesWithMinStartDate.First());
}
QuoteFile returnFile = files.OrderByDescending(o => o.info.Length).First();
return(returnFile);
}
