public static ServiceLayer getInstance()
{
if (instance == null)
{
instance = new ServiceLayer();
if (!fileSetUp())
{
Environment.Exit(0);
}
}
return(instance);
}
public void shutDown()
{
instance = null;
}
internal static bool fileSetUp()
{
string user = "";
bool flag = true;
ServiceLayer service = ServiceLayer.getInstance();
// Open the file to read from.
string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "..\\src\\State.json");
StreamReader sr = null;
try {
sr = new StreamReader(path);
}
catch (Exception e) {
ErrorManager.Instance.WriteToLog("SystemState - fileSetUp - File not exist");
return(false);
}
using (sr)
{
string json = sr.ReadToEnd();
State state = JsonConvert.DeserializeObject <State>(json);
foreach (Request r in state.Requests)
{
switch (r.RequestName)
{
case "Init":
flag = flag & service.init(r.User, r.Password);
break;
case "InitUser":
user = service.initUser();
break;
case "Login":
flag = flag & service.signIn(r.User, r.Password);
break;
case "Register":
flag = flag & service.register(r.User, r.Password, user);
break;
case "Logout":
if (r.User != null)
{
flag = flag & service.signOut(r.User);
}
else
{
return(false);
}
break;
case "AddProductsToCart":
if (r.User != null)
{
flag = flag & service.addProductsToCart(r.Products, r.Store, r.User);
}
else
{
flag = flag & service.addProductsToCart(r.Products, r.Store, user);
}
break;
case "EditProductQuantityInCart":
if (r.User != null)
{
flag = flag & service.editProductQuantityInCart(r.Product, r.Quantity, r.Store, r.User);
}
else
{
flag = flag & service.editProductQuantityInCart(r.Product, r.Quantity, r.Store, user);
}
break;
case "RemoveProductsFromCart":
if (r.User != null)
{
flag = flag & service.removeProductsFromCart(r.ProductsToRemove, r.Store, r.User);
}
else
{
flag = flag & service.removeProductsFromCart(r.ProductsToRemove, r.Store, user);
}
break;
case "OpenStore":
if (r.User != null)
{
flag = flag & service.openStore(r.Store, r.User);
}
else
{
return(false);
}
break;
case "CreateNewProductInStore":
if (r.User != null)
{
flag = flag & service.createNewProductInStore(r.ProductName, r.Category, r.Details, r.Price, r.Store, r.User);
}
else
{
return(false);
}
break;
case "AddProductsInStore":
if (r.User != null)
{
flag = flag & service.addProductsInStore(r.Products, r.Store, r.User);
}
else
{
return(false);
}
break;
case "RemoveProductsInStore":
if (r.User != null)
{
flag = flag & service.removeProductsInStore(r.Products, r.Store, r.User);
}
else
{
return(false);
}
break;
case "EditProductInStore":
if (r.User != null)
{
flag = flag & service.editProductInStore(r.Product, r.ProductName, r.Category, r.Details, r.Price, r.Store, r.User);
}
else
{
return(false);
}
break;
case "AssignOwner":
if (r.User != null)
{
flag = flag & service.assignOwnerSetUp(r.User, r.Owner, r.Store);
}
else
{
return(false);
}
break;
case "RemoveOwner":
if (r.User != null)
{
flag = flag & service.removeOwner(r.Owner, r.Store, r.User);
}
else
{
return(false);
}
break;
case "AssignManager":
if (r.User != null)
{
flag = flag & service.assignManager(r.Manager, r.Store, r.Permissions, r.User);
}
else
{
return(false);
}
break;
case "RemoveManager":
if (r.User != null)
{
flag = flag & service.removeOwner(r.Manager, r.Store, r.User);
}
else
{
return(false);
}
break;
case "RemoveUser":
if (r.User != null)
{
flag = flag & service.removeUser(r.UserToRemove, r.User);
}
else
{
return(false);
}
break;
default:
return(false);
}
}
}
return(flag);
}