public bool ChangeStatusBySerialNo(string serialNo, DeviceStatus newStatus, int userId)
{
var ctx = new PcPoolEntities();
var device = ctx.DeviceInstances.FirstOrDefault(di => di.SeriaNo == serialNo);
return(device != null && UpdateDeviceStatusAndHistory(newStatus, userId, device, ctx));
}
public Model.User AddNewUser(Model.User user)
{
var ctx = new PcPoolEntities();
try
{
var newUser = ctx.Users.Add(new PcPoolModels.User()
{
UserTypeID = (int)UserType.User,
LastName = user.LastName,
FirstName = user.FirstName,
UserName = user.UserName,
Title = user.Title,
Address = user.Address,
Designation = user.Designation,
Email = user.Email,
//Password = user.Password
});
ctx.SaveChanges();
return(ConvertToModel(newUser));
}
catch (Exception ex)
{
return(null);
}
//return true;
}
public bool ChangeStatusByRfid(string rfid, DeviceStatus newStatus, int userId)
{
var ctx = new PcPoolEntities();
var device = ctx.DeviceInstances.FirstOrDefault(di => di.RFID == rfid);
return(device != null && UpdateDeviceStatusAndHistory(newStatus, userId, device, ctx));
}
public List <Model.User> GetAllUsers()
{
var ctx = new PcPoolEntities();
var users = ctx.Users.Select(ConvertToModel).Where(u => u.UserType != UserType.SuperAdmin).ToList();
return(users);
//return null;
}
public List <DeviceType> GetDeviceTypes()
{
var ctx = new PcPoolEntities();
var dbDeviceTypes = ctx.DeviceTypes.Select(dt => new DeviceType()
{
DeviceName = dt.DevicaeName,
DeviceTypeId = dt.DeviceTypeID
}).ToList();
return(dbDeviceTypes);
}
static void Main(string[] args)
{
var pc = new PcPoolEntities();
var user = new PcPoolModels.User()
{
FirstName = "23"
};
pc.Users.Add(user);
pc.SaveChanges();
}
private void AddDeviceStatusHistory(PcPoolEntities ctx, int deviceInstanceId, DeviceStatus newDeviceStatus, int userId)
{
//var ctx=new PcPoolEntities();
ctx.DeviceStatusHistories.Add(new PcPoolModels.DeviceStatusHistory()
{
DeviceInstanceID = deviceInstanceId,
ModificationDate = DateTime.Now,
ModifiedByUserID = userId,
NewStatusID = (int)newDeviceStatus
});
}
private static int GetNumberOfReservedDevices(int deviceTypeId, PcPoolEntities ctx, int userId = -1)
{
var reservationList =
ctx.ReservationLists.Where(
s =>
s.DeviceTypeID == deviceTypeId && s.EndDate > DateTime.UtcNow &&
(userId == -1 || s.UserID != userId));
var reserved = reservationList.Any() ? reservationList.Sum(rl => rl.Amount) : 0;
return(reserved);
}
public Model.User VerifyUser(string userName, string password)
{
var ctx = new PcPoolEntities();
try
{
var user = ctx.Users.FirstOrDefault(u => u.UserName == userName /*&& u.Password == password*/);
return(ConvertToModel(user));
}
catch (Exception ex)
{
throw;
}
}
public bool AddnewItemType(DeviceType newType)
{
var ctx = new PcPoolEntities();
var dbModel = new PcPoolModels.DeviceType()
{
DevicaeName = newType.DeviceName,
DeviceDescription = newType.Description,
DeviceModel = newType.Model,
DeviceVersion = newType.Version
};
ctx.DeviceTypes.Add(dbModel);
ctx.SaveChanges();
return(true);
}
private User DbUserData(string userName)
{
var ctx = new PcPoolEntities();
var userDb = ctx.Users.FirstOrDefault(u => u.UserName == userName);
var user = userDb == null
? null
: new User()
{
UserName = userDb.UserName,
UserId = userDb.UserID,
UserType = (Model.UserType)userDb.UserTypeID
};
return(user);
}
public IList <DeviceInstance> GetAll(DeviceStatus deviceStatus = DeviceStatus.None, int deviceTypeId = 0)
{
var ctx = new PcPoolEntities();
var devices = GetDeviceDetails(ctx);
if (deviceStatus != DeviceStatus.None)
{
devices = devices.Where(d => d.DeviceStatus == deviceStatus);
}
if (deviceTypeId != 0)
{
devices = devices.Where(d => d.DeviceTypeId == deviceTypeId);
}
return(devices.ToList());
}
public IList <InventoryItemStat> GetInventoryStatus()
{
using (var ctx = new PcPoolEntities())
{
var devicesTypes = ctx.DeviceTypes;
var result = new List <InventoryItemStat>();
try
{
foreach (var deviceType in devicesTypes)
{
//TODO: Check with the product owner if we should subtract reserved devices from instock count
var inStock = ctx.
DeviceInstances.
Count(di => di.DeviceTypeID == deviceType.DeviceTypeID &&
di.DeviceStatusID.Value == (int)DeviceStatus.InStock);
var loaned = ctx.
DeviceInstances.
Count(di => di.DeviceTypeID == deviceType.DeviceTypeID &&
di.DeviceStatusID.Value == (int)DeviceStatus.Loaned);
var reservedCount = GetNumberOfReservedDevices(deviceType.DeviceTypeID, ctx);
var total = ctx.DeviceInstances.
Count(di => di.DeviceTypeID == deviceType.DeviceTypeID);
result.Add(new InventoryItemStat()
{
Loaned = loaned,
InStock = inStock,
Total = total,
ItemName = deviceType.DevicaeName,
ReservedCount = reservedCount
});
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
return(result);
}
}
private static IQueryable <DeviceInstance> GetDeviceDetails(PcPoolEntities ctx)
{
var devices = ctx.DeviceInstances.Join(ctx.DeviceTypes,
di => di.DeviceTypeID,
dt => dt.DeviceTypeID,
(di, dt) => new DeviceInstance()
{
DeviceName = dt.DevicaeName,
DeviceTypeId = dt.DeviceTypeID,
Description = di.Description,
DescriptionTitle = di.DescriptionTitle,
Id = di.DeviceInstanceID,
ManufacturingYear = di.ManufacturingYear.Value,
Model = dt.DeviceModel,
DeviceStatus = (DeviceStatus)di.DeviceStatusID.Value,
SeriaNo = di.SeriaNo,
RFID = di.RFID
});
return(devices);
}
public bool AddnewItem(DeviceInstance deviceInstance)
{
var ctx = new PcPoolEntities();
try
{
ctx.DeviceInstances.Add(new PcPoolModels.DeviceInstance()
{
DeviceTypeID = deviceInstance.DeviceTypeId,
Description = deviceInstance.Description,
DescriptionTitle = deviceInstance.DescriptionTitle,
SeriaNo = deviceInstance.SeriaNo,
RFID = deviceInstance.RFID,
DeviceStatusID = (int)deviceInstance.DeviceStatus,
ManufacturingYear = deviceInstance.ManufacturingYear
});
ctx.SaveChanges();
}
catch (Exception ex)
{
return(false);
}
return(true);
}
public void ChangeUserType(int userId)
{
using (var ctx = new PcPoolEntities())
{
var user = ctx.Users.FirstOrDefault(u => u.UserID == userId);
if (user == null)
{
return;
}
switch (user.UserTypeID)
{
case (int)UserType.Admin:
user.UserTypeID = (int)UserType.User;
break;
case (int)UserType.User:
user.UserTypeID = (int)UserType.Admin;
break;
}
ctx.Users.Attach(user);
ctx.Entry(user).State = EntityState.Modified;
ctx.SaveChanges();
}
}
public ReservationResult ReserveDevices(int deviceTypeId, int amount, int userId = -1, bool checkOnly = false)
{
using (var ctx = new PcPoolEntities())
{
var inStock = ctx.
DeviceInstances.
Count(di => di.DeviceTypeID == deviceTypeId &&
di.DeviceStatusID.Value == (int)DeviceStatus.InStock);
var reserved = GetNumberOfReservedDevices(deviceTypeId, ctx, userId);
var availableDevices = inStock - reserved;
var result = new ReservationResult()
{
IsPossible = availableDevices >= amount,
NumberOfAvailableDevice = availableDevices > 0 ? availableDevices : 0
};
if (!result.IsPossible || checkOnly)
{
return(result);
}
ctx.ReservationLists.Add(new PcPoolModels.ReservationList
{
UserID = LoggedInUserData.UserId,
DeviceTypeID = deviceTypeId,
Amount = amount,
StartDate = DateTime.UtcNow,
EndDate = DateTime.UtcNow.AddDays(7)
});
ctx.SaveChanges();
return(result);
}
}
private static bool UpdateDeviceStatus(DeviceStatus newStatus, PcPoolModels.DeviceInstance device, PcPoolEntities ctx, int userId)
{
if (newStatus == DeviceStatus.Loaned)
{
var inventoryStatProvider = new InventoryStatProvide();
var result = inventoryStatProvider.ReserveDevices(device.DeviceTypeID, 1, userId, true);
if (!result.IsPossible)
{
return(false);
}
device.DeviceStatusID = (int)newStatus;
var reservation =
ctx.ReservationLists.FirstOrDefault(
rl =>
rl.UserID == userId && rl.DeviceTypeID == device.DeviceTypeID &&
rl.EndDate > DateTime.UtcNow);
if (reservation != null | reservation.Amount != 0)
{
reservation.Amount -= 1;
ctx.ReservationLists.Attach(reservation);
ctx.Entry(reservation).State = EntityState.Modified;
ctx.DeviceInstances.Attach(device);
ctx.Entry(device).State = EntityState.Modified;
ctx.SaveChanges();
}
}
else
{
device.DeviceStatusID = (int)newStatus;
ctx.DeviceInstances.Attach(device);
ctx.Entry(device).State = EntityState.Modified;
ctx.SaveChanges();
}
return(true);
}
private bool UpdateDeviceStatusAndHistory(DeviceStatus newStatus, int userId, PcPoolModels.DeviceInstance device, PcPoolEntities ctx)
{
var status = UpdateDeviceStatus(newStatus, device, ctx, userId);
if (status)
{
AddDeviceStatusHistory(ctx, device.DeviceInstanceID, newStatus, userId);
}
return(status);
}
public DeviceInstance GetItemByRfid(string rfid)
{
var ctx = new PcPoolEntities();
return(GetDeviceDetails(ctx).FirstOrDefault(dd => dd.SeriaNo == rfid));
}
