private void setHintAndBlank(ReviewViewModel model)
{
string[] words = Regex.Split(model.ViewCard.Question, @"\s+");
string longestWord = words.OrderByDescending(w => w.Length).ToArray()[0];
var sbHint = new StringBuilder();
var sbBlank = new StringBuilder();
var rand = new Random();
char? blankAns = null;
foreach (var w in words) {
var hintAry = new char[w.Length];
var blankAry = Regex.Replace(w, "[a-zA-Z]", "*").ToCharArray();
Array.Copy(sourceArray: blankAry, destinationArray: hintAry, length: blankAry.Length);
hintAry[0] = w[0];
hintAry[w.Length - 1] = w[w.Length - 1];
sbHint.Append(new string(hintAry)).Append(" ");
if (blankAns == null && w == longestWord) {
var min = w.Length < 3 ? 0 : 1;
var max = w.Length < 3 ? w.Length - 1 : w.Length - 2;
var r = rand.Next(min, max); // [min, max)
blankAns = w[r];
blankAry[r] = '_';
}
sbBlank.Append(new string(blankAry)).Append(" ");
}
model.Hint = sbHint.ToString().Trim();
model.Blank = sbBlank.ToString().Trim();
model.BlankAnswer = blankAns;
}
//
// GET: /Review/
public ActionResult Index(int page = 0, string reviewMode = "Fast")
{
#if DEBUG
DateTime dt0 = DateTime.Now.AddMilliseconds(-6),
dt1 = DateTime.Now.AddMilliseconds(-12),
dt2 = DateTime.Now.AddSeconds(-3),
dt3 = DateTime.Now.AddSeconds(-7),
dt4 = DateTime.Now.AddSeconds(-14);
#else
DateTime dt0 = DateTime.Now.AddHours(-6),
dt1 = DateTime.Now.AddHours(-12),
dt2 = DateTime.Now.AddDays(-3),
dt3 = DateTime.Now.AddDays(-7),
dt4 = DateTime.Now.AddDays(-14);
#endif
int userId = (int)(Session["UserId"] ?? this.GetUserId());
ViewBag.ReviewModeList = createReviewModeList();
var cards = repository.Cards.Where(c => c.UserId == userId);
cards = cards.Where(c =>
(c.ReviewLevel == 0 && c.ReviewedAt < dt0) ||
(c.ReviewLevel == 1 && c.ReviewedAt < dt1) ||
(c.ReviewLevel == 2 && c.ReviewedAt < dt2) ||
(c.ReviewLevel == 3 && c.ReviewedAt < dt3) ||
(c.ReviewLevel == 4 && c.ReviewedAt < dt4)
);
cards = cards.OrderBy(c => c.ReviewLevel).ThenBy(c => c.ReviewedAt);
var viewModel = new ReviewViewModel(itemsPerPage: 1, pageSkip: 5) {
Cards = cards,
Page = page,
QuestionedAt = DateTime.Now,
ReviewMode = reviewMode
};
if (page > viewModel.LastPage) {
viewModel.Page = viewModel.LastPage;
}
viewModel.ViewCard = viewModel.GetCardsInPage().SingleOrDefault();
if (reviewMode == "Typing" || reviewMode == "Blank") {
setHintAndBlank(viewModel);
}
return View(viewModel);
}