/// <summary>
/// Handles saving a list of predictions made by the specified user. Will not save a prediction if it fails some basic validation
/// checks, such as having a valid scoreline, valid fixture, deadline has not passed for the fixture's gameweek.
/// </summary>
/// <param name="predictions"></param>
/// <param name="userName"></param>
/// <param name="context"></param>
/// <returns></returns>
public async Task SavePredictions(List <Prediction> predictions, string userName)
{
foreach (var prediction in predictions.Where(prediction =>
prediction.HomeScore >= 0 && prediction.AwayScore >= 0 &&
prediction.HomeScore <= 10 && prediction.AwayScore <= 10))
{
// Check that fixture actually exists
var fixture = await fixtureService.GetFixtureById(prediction.Fixture.Id);
if (fixture == null)
{
continue;
}
// Deadline has passed don't save anything.
if (DateTime.Now >= fixture.GameWeek.DeadlineDate)
{
continue;
}
// Set user properly
if (prediction.User == null)
{
prediction.User = await userService.GetUserByName(userName);
}
// Set fixture properly
prediction.Fixture = fixture;
context.Predictions.AddOrUpdate(p => p.Id, prediction);
await context.SaveChangesAsync();
}
}