public IActionResult Execute([HttpTrigger(AuthorizationLevel.Function, "get", Route = null)]
HttpRequest req,
ILogger log)
{
try
{
var mapKey = req.Query["key"].FirstOrDefault()?.ToLower();
var pointsOfInterest = _locations.Where(x => x.RawKey().StartsWith(mapKey + "::")).ToList();
var hotness = new Hotness();
var highlights = new List <Highlight>();
foreach (var poi in pointsOfInterest)
{
var location = _locations.Single(x => x.Key == poi.Key);
var totalAvailableSeats = location.Capacity;
var filledSeats = _capacityService.NumberOfDesksOccupiedForLocation(poi.RawKey());
filledSeats = filledSeats > totalAvailableSeats ? totalAvailableSeats : filledSeats;
var percentage = (int)Math.Floor((double)filledSeats / (double)totalAvailableSeats * 100);
var colorGrade = hotness.Rank(percentage);
highlights.Add(new Highlight(poi.ImageLocation, colorGrade));
}
var outputBytes = _generator.HighlightMap(mapKey, highlights);
return(new FileContentResult(outputBytes, "image/jpeg"));
}
catch (Exception ex)
{
log.LogError(ex.ToString());
throw;
}
}