static void OnTagsReported(ImpinjReader sender, TagReport report)
{
// This event handler is called asynchronously
// when tag reports are available.
// Loop through each tag in the report
// and print the data.
foreach (Tag tag in report)
{
TelepromptDbContext.ConnectionString = configValue;
TelepromptDbContext _contextTeleprompt = new TelepromptDbContext();
GraduateDbContext.ConnectionString = configValue;
GraduateDbContext _contextGraduate = new GraduateDbContext();
QueueDbContext.ConnectionString = configValue;
QueueDbContext _contextQueue = new QueueDbContext();
var searchGraduateId = Regex.Replace(tag.Epc.ToString(), "[^0-9a-zA-Z]+", "");
Console.WriteLine("EPC / GraduateId >>>> {0} ", searchGraduateId);
if (searchGraduateId != String.Empty)
{
Graduate graduate = _contextGraduate.Graduate.SingleOrDefault(m => m.GraduateId == searchGraduateId);
// MUST be on the graduate list
if (graduate != null)
{
// Status 1
// Finished with Display
if (graduate.Status != 1)
{
IEnumerable <Teleprompt> teleprompt = _contextTeleprompt.Teleprompt;
var isSearchGraduateInTeleprompt = teleprompt.SingleOrDefault(m => m.GraduateId == searchGraduateId);
var countTeleprompt = teleprompt.Count();
// check and kick teleprompt screen, if there's a new reading
// so that after logics will always
// fulfill
// isSearchGraduateInTeleprompt is for the NEW Graduate Read
// NOTE: He's is not in the Teleprompt, someone is occupying it.
// we need to kick the tenant, if he's already past his occupancy Status = 1
if (isSearchGraduateInTeleprompt == null && countTeleprompt > 0)
{
Teleprompt currentTenantOnTeleprompt = teleprompt.SingleOrDefault();
if (currentTenantOnTeleprompt.Status == 1)
{
CleanTeleprompt(_contextTeleprompt);
countTeleprompt = 0;
}
}
if (isSearchGraduateInTeleprompt != null && countTeleprompt > 0)
{
Console.WriteLine("\t\t\t\t\t <<<<<<<<<<<<<<< Active >>>>>>>>>>>>>>> ");
}
// NOT in teleprompt
// AND
// EMPTY teleprompt
if (isSearchGraduateInTeleprompt == null && countTeleprompt <= 0)
{
Console.WriteLine("\t\t\tTeleprompt Status: In: No, Count: {0}", countTeleprompt);
IEnumerable <Queue> queue = _contextQueue.Queue;
var isSearchGraduateInQueue = queue.SingleOrDefault(m => m.GraduateId == searchGraduateId);
var totalInQueue = queue.Count();
// teleprompt == empty
// searchGraduate not in queue
// queue == empty
if (isSearchGraduateInQueue == null && totalInQueue <= 0)
{
// clean teleprompt
CleanTeleprompt(_contextTeleprompt);
// push directly to the teleprompt
DisplayTeleprompt(_contextTeleprompt, searchGraduateId);
// update graduate status
var grad = _contextGraduate.Graduate.FirstOrDefault(m => m.GraduateId == searchGraduateId);
if (grad != null)
{
grad.Status = 1;
_contextGraduate.Update(grad);
_contextGraduate.SaveChanges();
}
}
else
{
// queue is not empty and not in the queue
// push in the end
if (isSearchGraduateInQueue == null && totalInQueue > 0)
{
_contextQueue.Queue.Add(new Queue()
{
GraduateId = searchGraduateId, Created = System.DateTime.Now
});
_contextQueue.SaveChanges();
Console.WriteLine("\t\t\t------------------------------------- In Queue");
}
CleanTeleprompt(_contextTeleprompt);
PopQueueAddTelepromptUpdateGraduate(_contextQueue, _contextTeleprompt, _contextGraduate);
Console.WriteLine("\t\t\tTeleprompt Status: In: No, Count: {0}", countTeleprompt);
Console.WriteLine("\t\t\tQueue Status: In: Yes, Count: {0}", totalInQueue);
}
}
else
{
// Teleprompt is not empty
// And
// Is not the current display on screen
if (isSearchGraduateInTeleprompt == null && countTeleprompt > 0)
{
// queue
IEnumerable <Queue> queue = _contextQueue.Queue;
var isSearchGraduateInQueue = queue.SingleOrDefault(m => m.GraduateId == searchGraduateId);
if (isSearchGraduateInQueue == null)
{
_contextQueue.Queue.Add(new Queue()
{
GraduateId = searchGraduateId, Created = System.DateTime.Now
});
_contextQueue.SaveChanges();
Console.WriteLine("\t\t\tQueue Status >> In: No, Count: {0}", queue.Count());
}
else
{
Console.WriteLine("\t\t\tQueue Status >> In: Yes, Count: {0}", queue.Count());
}
}
}
}
else
{
Console.WriteLine("\nGraduate Screen Time... Either FINISHED and/or ACTIVE !!!");
Console.WriteLine("Do you want to show this graduate again? Please change Graduate Status to 0\n");
}
}
else
{
// Not a Graduate Id string tag
Console.WriteLine("Can't find that Id {0}", searchGraduateId);
}
}
else
{
Console.WriteLine("Invalid string: @0", searchGraduateId);
}
}
}
static void PopQueueAddTelepromptUpdateGraduate(QueueDbContext q, TelepromptDbContext t, GraduateDbContext g)
{
// remove the top of the queue
var itemTopQueue = q.Queue.OrderBy(m => m.Created).FirstOrDefault();
if (itemTopQueue != null)
{
q.Remove(itemTopQueue);
// save don't wait
q.SaveChanges();
// add to teleprompt
var respectedTime = DateTime.Now.ToString();
var teleprompt = new Teleprompt()
{
GraduateId = itemTopQueue.GraduateId, Created = itemTopQueue.Created
};
t.Add(teleprompt);
t.SaveChanges();
var graduate = g.Graduate.FirstOrDefault(m => m.GraduateId == itemTopQueue.GraduateId);
if (graduate != null)
{
graduate.Status = 1;
g.Update(graduate);
g.SaveChanges();
}
}
}