async public Task <JsonResult> SaveDraw(string setCode, string data)
{
// See if the user already has a userDrawId. If not, create one for them.
// This (will be used) to tie a user's draws together so they can see a list of them.
var userDrawId = HttpContext.Request.Cookies["userDrawId"];
if (string.IsNullOrWhiteSpace(userDrawId))
{
// A GUID to hold the cartId.
userDrawId = Guid.NewGuid().ToString();
// Send cart Id as a cookie to the client.
HttpContext.Response.Cookies.Append("userDrawId", userDrawId);
}
var drawEntity = new DrawEntity()
{
SetCode = setCode,
Results = data,
UserDrawId = userDrawId
};
var uniqueId = await _storageContext.SaveDraw(drawEntity);
// This will return something like: http://localhost:1491/ogw?draw=TvizXlV
var returnJson = $"{{ \"drawId\": \"{uniqueId}\", \"url\": \"/{setCode}?draw={uniqueId}\" }}";
return(Json(returnJson));
}
public DrawResult DrawWinner()
{
var generator = new Random();
var latestLottery = _ctx.LotteryEntity.OrderByDescending(l => l.Id)
.Include(l => l.Tickets)
.ThenInclude(t => t.User)
.Include(l => l.LoteryCharity)
.ThenInclude(c => c.Charity)
.First();
var pool = latestLottery.Tickets.OrderBy(t => t.Id).ToList();
var winningNumber = generator.Next(pool.Count);
var winingTicket = pool[winningNumber];
var winningUser = winingTicket.User;
var voteResult = pool.GroupBy(p => p.CharityId)
.Select(g => new
{
CharityId = g.Key,
Votes = g.Count()
}).OrderByDescending(c => c.Votes)
.First();
var winningCharity = this._ctx.CharityEntity.First(c => c.Id == voteResult.CharityId);
var result = new DrawResult
{
TotalParticipants = pool.Count,
Ticket = new DrawTicket()
{
Id = winingTicket.Id,
Name = winingTicket.Name
},
User = new DrawnUser()
{
Name = winningUser.Name,
Id = winningUser.Id
},
Charity = new DrawCharity
{
Id = winningCharity.Id,
Name = winningCharity.Name
}
};
var drawEntity = new DrawEntity()
{
TicketId = winingTicket.Id
};
_ctx.Draws.Add(drawEntity);
_ctx.SaveChanges();
return(result);
}