/// <summary>
/// mini method for generating new key value
/// </summary>
public int OrderSize()
{
using (var db = new Pzero_DbContextClass())
{
var ords = db.Orders
.FromSqlRaw("SELECT * FROM Orders")
.ToList();
return(ords.Count);
}
}
/// <summary>
/// Can be used to read out all customer info
/// </summary>
public void ReadCustomers()
{
using (var db = new Pzero_DbContextClass())
{
var custs = db.Customers
.FromSqlRaw("SELECT * FROM Customers")
.ToList();
foreach (var cust in custs)
{
Console.WriteLine($"first: {cust.FName} last: {cust.LName} Id: {cust.CustomerID}");
}
}
}
/// <summary>
/// used to update inventory after a successful order is made
/// </summary>
public void UpdateInventory(int ID, int Q)
{
using (var db = new Pzero_DbContextClass())
{
try
{
var locs = db.Locations
.FromSqlInterpolated($"UPDATE Locations SET Quantity = Quantity - {Q} WHERE InventoryID = {ID}")
.ToList();
}
catch { }
}
}
/// <summary>
/// used to display store/inventory quickly
/// </summary>
public void ShowInventory()
{
using (var db = new Pzero_DbContextClass())
{
var locs = db.Locations
.FromSqlRaw("SELECT * FROM Locations")
.ToList();
foreach (var l in locs)
{
Console.WriteLine($"InventoryID {l.InventoryID} | StoreID {l.StoreID} | ItemID {l.ItemID} | Quantity Available {l.Quantity}");
}
}
}
/// <summary>
/// Used to quickly print out all products, called in main
/// </summary>
public void ShowAllProducts()
{
using (var db = new Pzero_DbContextClass())
{
var prods = db.Products
.FromSqlRaw("SELECT * FROM Products")
.ToList();
foreach (var p in prods)
{
Console.WriteLine($"ProductID ({p.ProductID}) | Item Name ({p.PName}) | Unit Cost ({p.PCost})");
}
}
}
public void SearchCustomer(int version)
// version >> 0 -> Id : 1 -> Name
{
using (var db = new Pzero_DbContextClass())
{
if (version == 0)
{
Console.Write("Enter their ID: ");
int input = Convert.ToInt32(Console.ReadLine());
var cust = db.Customers
.FromSqlInterpolated($"SELECT * FROM Customers WHERE CustomerID = {input}")
.ToList();
if (cust.Count() >= 1)
{
foreach (var C in cust) // since it's using ID should only be one row large
{
Console.WriteLine($"FName ({C.FName}) | LName ({C.LName}) | Default Store ({C.DefaultSto})");
}
}
else
{
Console.WriteLine("No customers were found with that ID");
}
}
else if (version == 1)
{
Console.Write("Enter their first name (Case Sensitive) >> ");
string first = Console.ReadLine();
Console.Write("Enter their last name (Case Sensitive) >> ");
string last = Console.ReadLine();
var cust = db.Customers
.FromSqlInterpolated($"SELECT * FROM Customers WHERE FName = {first} AND LName = {last}")
.ToList();
if (cust.Count() >= 1)
{
foreach (var C in cust) // since it's using ID should only be one row large
{
Console.WriteLine($"CustomerID ({C.CustomerID}) | Default Store ({C.DefaultSto})");
}
}
else
{
Console.WriteLine("No customers were found under that that name");
}
}
else
{
Console.WriteLine("huh this is an error");
}
}
}
/// <summary>
/// used to extract the name of ordered items
/// </summary>
public string GetPName(int i) //only called on valid product so should never return error
{
using (var db = new Pzero_DbContextClass())
{
var prods = db.Products
.FromSqlInterpolated($"SELECT * FROM Products WHERE ProductID = {i}")
.ToList();
foreach (var p in prods)
{
return(p.PName);
}
return("error");
}
}
/// <summary>
/// Used to quickly determin if a customer exists, used for making orders
/// </summary>
public bool IsValidCustomer(int i)
{
using (var db = new Pzero_DbContextClass())
{
var custs = db.Customers
.FromSqlInterpolated($"SELECT * FROM Customers WHERE CustomerID = {i}")
.ToList();
if (custs.Count >= 1)
{
return(true);
}
else
{
return(false);
}
}
}
/// <summary>
/// Used to confirm store location is valid for order placement
/// </summary>
public bool IsValidLocation(int i) //will stop order if the store doesn't exist
{
using (var db = new Pzero_DbContextClass())
{
var locs = db.Locations
.FromSqlInterpolated($"SELECT * FROM Locations WHERE StoreID = {i}")
.ToList();
if (locs.Count > 0)
{
return(true);
}
else
{
return(false);
}
}
}
/// <summary>
/// Determines if provided product ID is valid for order placement
/// </summary>
public bool IsValidProduct(int i)
{
using (var db = new Pzero_DbContextClass())
{
var prods = db.Products
.FromSqlInterpolated($"SELECT * FROM Products WHERE ProductID = {i}")
.ToList();
if (prods.Count >= 1)
{
return(true);
}
else
{
Console.WriteLine("Invalid product ID, try again");
return(false);
}
}
}
/// <summary>
/// Returns how many of an item is available, so order can't exceede current volume
/// </summary>
public int MaxAvailable(int ItemID, int StoreID) //returns how many of an Item there is to reject oversized orders
{
using (var db = new Pzero_DbContextClass())
{
var locs = db.Locations
.FromSqlInterpolated($"SELECT * FROM Locations WHERE ItemID = {ItemID} AND Quantity >= 1 AND StoreID = {StoreID}")
.ToList();
if (locs.Count > 0)
{
foreach (var l in locs) //since using SUM there should only be one
{
return(l.Quantity);
}
}
else
{
return(-1);
}
}
return(-1);
}
/// <summary>
/// used to show details of a specific order
/// </summary>
public void ShowSpecificOrder()
{
using (var db = new Pzero_DbContextClass())
{
Console.Write("Enter OrderID >> ");
int TargetID = Convert.ToInt32(Console.ReadLine());
var ords = db.Orders
.FromSqlInterpolated($"SELECT * FROM Orders WHERE OrderID = {TargetID}")
.ToList();
if (ords.Count() >= 1)
{
foreach (var O in ords)
{
Console.WriteLine($"StoreID ({O.StoreID}) | CustomerID ({O.CustomerID}) | SellTime ({O.SellTime}) | Sold Items ({O.SoldItems})");
}
}
else
{
Console.WriteLine("Sorry couldn't find that order");
}
}
}
/// <summary>
/// Used to write entry to Customer table
/// </summary>
public void WriteCustomer()
{
using (var db = new Pzero_DbContextClass())
{
Console.Write("Enter First Name: ");
string first = Console.ReadLine();
Console.Write("Last Name: ");
string last = Console.ReadLine();
prefSto:
Console.Write("Prefered store ID: ");
string prefSto = Console.ReadLine();
int prefStoInt = IsInt(prefSto);
Location l = new Location();
if (l.IsValidLocation(prefStoInt) == false)
{
Console.WriteLine("Invalid store ID try again");
goto prefSto;
}
//auto increment isn't behaving so
int custSize;
var s = db.Customers
.FromSqlRaw("SELECT * FROM Customers")
.ToList();
custSize = (s.Count() + 1);
// its forcing me to supply an ID -_-
try // It's throwing an exception for NO REASON, so Im just going to ignore it
{
var custs = db.Customers
//.FromSqlInterpolated($"INSERT INTO Customers ( CustomerID, FName, LName, DefaultSto) VALUES ( {custSize}, {first}, {last}, 1)")
.FromSqlInterpolated($"INSERT INTO Customers VALUES ( {custSize}, {first}, {last}, {prefStoInt})")
.ToList();
}
catch
{
}
Console.WriteLine($"New entry added ID: {custSize}");
}
}
/// <summary>
/// Most complex method: used to create and place an order
/// </summary>
public void MakeOder()
{
//verify customer input and validity ----------------------------
int cust;
while (true)
{
Console.Write("Enter your customer ID >> ");
string InP = Console.ReadLine();
if (IsInt(InP) != -1)
{
cust = IsInt(InP);
}
else
{
continue;
}
Customer c = new Customer();
if (c.IsValidCustomer(cust))
{
break;
}
else
{
Console.WriteLine("invalid customer ID try again");
continue;
}
}
//verify storeID input and validity ------------------------------
int store;
while (true)
{
Console.Write("Enter store ID to order from>> ");
string InP = Console.ReadLine();
if (IsInt(InP) != -1)
{
store = IsInt(InP);
}
else
{
continue;
}
Location l = new Location();
if (l.IsValidLocation(store))
{
break;
}
else
{
Console.WriteLine("invalid store ID try again");
continue;
}
}
List <int[]> orders = new List <int[]>();
//loop go get order ids and quantities
while (true)
{
int PID;
int quantity;
Console.Write("Enter an item ID you want to order>> ");
string InP = Console.ReadLine();
int temp = IsInt(InP);
if (temp != -1)
{
Product p = new Product();
if (p.IsValidProduct(temp))
{
PID = IsInt(InP);
}
else
{
continue;
}
}
else
{
continue;
}
bool repeat = false; // make sure it's not already in orders - otherwise updating may go past 0
foreach (var ord in orders)
{
if (PID == ord[0])
{
repeat = true;
}
}
if (repeat)
{
Console.Write("You already ordered that, want to add a different item? (y/n) >> ");
int still = YesNo(Console.ReadLine());
if (still == 1)
{
continue;
}
else
{
break;
}
}
HowMany:
Console.Write("How many do you want >> ");
InP = Console.ReadLine();
temp = IsInt(InP);
if (temp != -1)
{
Location l = new Location();
int max = l.MaxAvailable(PID, store);
if (temp <= max && temp > 0)
{
quantity = temp;
}
else
{
if (temp <= 0)
{
Console.WriteLine($"you need to add more than 0 of the item");
goto HowMany;
}
else
{
Console.WriteLine($"Sorry thats more than the store has, choose {max} or less");
goto HowMany;
}
}
}
else
{
goto HowMany;
}
orders.Add(new int[] { PID, quantity });
Console.Write("Want to add another item? (y/n) >> ");
int ans = YesNo(Console.ReadLine());
if (ans == 1)
{
continue;
}
else
{
break;
}
}
foreach (var ord in orders)
{
Console.WriteLine($"Ordering {ord[1]} of item {ord[0]}");
}
// use variables cust, store and orders to place the order
// insert orders
foreach (var ord in orders)
{
int OID = (OrderSize() + 1);
Product p = new Product();
string prod = p.GetPName(ord[0]);
using (var db = new Pzero_DbContextClass())
{
try
{
var PlaceOrds = db.Orders
.FromSqlInterpolated($"INSERT INTO ORDERS VALUES({OID},{store},{cust},DATE('now'),{prod})")
.ToList();
}
catch { }
}
Location l = new Location(); // --- update inventory
l.UpdateInventory(ord[0], ord[1]);
}
Console.WriteLine("All done");
}