narsil/Tanshu.Accounts.PointOfSale/Controllers/BillController.cs
2018-08-24 16:11:33 +05:30

620 lines
25 KiB
C#

using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
using Tanshu.Accounts.Contracts;
using Tanshu.Accounts.Entities;
using Tanshu.Accounts.Helpers;
using Tanshu.Accounts.Print;
using Tanshu.Accounts.Repository;
using Tanshu.Common;
using System;
namespace Tanshu.Accounts.PointOfSale
{
public class BillController
{
public readonly BillDict _bill;
public Voucher _voucher;
public Guid? _editVoucherID;
public BillController(Guid? editVoucherID)
{
this._editVoucherID = editVoucherID;
_bill = new BillDict();
_voucher = new Voucher(Session.User, CustomerBI.Get(Constants.CASH_CUSTOMER));
}
public void AddProduct(Product product)
{
var newKey = new BillItemKey(product.ProductID, Guid.Empty, product.HasHappyHour);
if (_bill.ContainsKey(newKey))
{
_bill[newKey].inventory.Quantity += 1;
}
else
{
var billItemValue = new BillItemValue(product, product.HasHappyHour);
var old = _bill.FirstOrDefault(x => x.Key.BillItemType == (product.HasHappyHour ? BillItemType.HappyHourProduct : BillItemType.RegularProduct) && x.Key.ProductID == newKey.ProductID);
if (old.Key != null)
{
billItemValue.inventory.Discount = old.Value.inventory.Discount;
billItemValue.inventory.Price = old.Value.inventory.Price;
}
_bill.Add(newKey, billItemValue);
}
}
public void ShowModifiers(BillItemValue item)
{
using (var frm = new ModifierForm(Cache.ProductGroupModifiers(item.inventory.Product.ProductGroup.ProductGroupID), item.inventory.InventoryModifier))
{
frm.ShowDialog();
}
}
public void SetDiscount()
{
if (!Session.IsAllowed("Discount"))
return;
using (var frm = new DiscountForm(ProductGroupBI.GetProductGroupTypes()))
{
if (frm.ShowDialog() == DialogResult.OK)
{
HashSet<string> outList;
var discount = frm.Selection(out outList);
discount = discount / 100;
if (discount > 1 || discount < 0)
return;
foreach (var item in _bill.Where(x => x.Key.BillItemType != BillItemType.Kot && outList.Contains(x.Value.inventory.Product.ProductGroup.GroupType)))
{
var product = item.Value.inventory.Product;
var maxDiscount = product.ProductGroup.DiscountLimit;
if (discount > item.Value.inventory.Product.ProductGroup.DiscountLimit)
MessageBox.Show(string.Format("Maximum discount for {0} is {1:P}", product.Name, maxDiscount),
"Excessive Discount", MessageBoxButtons.OK, MessageBoxIcon.Warning);
item.Value.inventory.Discount = discount;
}
}
}
}
public void SetQuantity(BillItemKey key, BillItemValue item, decimal quantity, bool prompt)
{
if (item == null || key.KotID != Guid.Empty)
return; // No Product or Old Product
if (prompt && !GetInput("Quantity", ref quantity))
return;
if (!prompt)
quantity += item.inventory.Quantity;
if (quantity < 0 && !Session.IsAllowed("Edit Printed Product"))
return;
var old = _bill.Where(x => x.Key.ProductID == key.ProductID && x.Key.KotID != Guid.Empty && x.Key.BillItemType == key.BillItemType).Sum(x => x.Value.inventory.Quantity);
quantity = Math.Max(quantity, -1 * old);
item.inventory.Quantity = quantity;
}
public void SetPrice(BillItemValue item)
{
if (item.inventory.IsHappyHour)
return;
if (!Session.IsAllowed("Change Rate"))
return;
var price = item.inventory.Price;
if (!GetInput("Price", ref price))
return;
if (price == 0 && !Session.IsAllowed("NC Product"))
throw new PermissionException("NC of Product is not Allowed");
foreach (var sub in _bill.Where(x => x.Key.BillItemType != BillItemType.Kot && x.Key.ProductID == item.inventory.Product.ProductID))
sub.Value.inventory.Price = price;
}
public void ShowCustomers()
{
using (var frm = new CustomerListForm())
{
frm.ShowDialog();
_voucher.Customer = frm.SelectedItem;
}
}
private static bool IsPrintedOrVoid(Voucher voucher)
{
var dbVoucher = VoucherBI.Get(voucher.VoucherID);
return dbVoucher.Printed || dbVoucher.Void;
}
private static bool IsPrintedOrVoid(Guid voucherID)
{
var dbVoucher = VoucherBI.Get(voucherID);
return dbVoucher.Printed || dbVoucher.Void;
}
private void InputBox_Validating(object sender, InputBoxValidatingArgs e)
{
}
private void LoadBill(Guid voucherID)
{
_voucher = VoucherBI.Get(voucherID);
_bill.Load(_voucher);
var newKotKey = new BillItemKey(Guid.Empty);
var newKotItem = new BillItemValue();
_bill.Add(newKotKey, newKotItem);
}
public void LoadBill(string tableName)
{
FoodTable table = FoodTableBI.GetFromName(tableName);
if (table != null && table.VoucherID.HasValue)
{
LoadBill(table.VoucherID.Value);
}
else
{
using (var frm = new PaxForm())
{
frm.ShowDialog();
_voucher.Table = table;
_voucher.Pax = frm.Pax;
}
}
}
public bool CancelBillChanges()
{
if (_bill.Any(x => x.Key.BillItemType != BillItemType.Kot && x.Key.KotID == Guid.Empty) &&
MessageBox.Show("Abandon Changes?", "Abandon Changes", MessageBoxButtons.YesNo,
MessageBoxIcon.Question, MessageBoxDefaultButton.Button2) == DialogResult.No)
return false;
ClearBill();
return true;
}
public void ClearBill()
{
_voucher = new Voucher(Session.User, CustomerBI.Get(Constants.CASH_CUSTOMER));
_bill.Clear();
var newKotKey = new BillItemKey(Guid.Empty);
var newKotItem = new BillItemValue();
_bill.Add(newKotKey, newKotItem);
}
public SaleFormState FormLoad()
{
ClearBill();
if (_editVoucherID.HasValue)
{
FoodTable ft;
ft = FoodTableBI.GetFromVoucher(_editVoucherID.Value);
LoadBill(_editVoucherID.Value);
if (ft != null)
_editVoucherID = null;
return SaleFormState.Billing;
}
return SaleFormState.Waiting;
}
internal bool SettleBill()
{
if (_voucher.VoucherID == Guid.Empty || !_voucher.Printed || !Session.IsAllowed("Settle Bill"))
return false;
IDictionary<SettleOption, decimal> options;
var amount = -1 * _voucher.Kots.Sum(x => x.Inventories.Sum(y => y.Amount));
using (var frm = new SettleChoicesForm(Math.Round(amount) * -1, _voucher.VoucherType))
{
frm.ShowDialog();
options = frm.OptionsChosen;
}
if (options.Count == 0)
return false;
VoucherBI.SettleVoucher(Session.User, _voucher.VoucherID, options, !_editVoucherID.HasValue);
ClearBill();
return true;
}
#region Move Table(s) / Kot(s)
private static FoodTable GetTableForMove(bool allowMerge)
{
using (var frm = new MoveTableForm(FoodTableBI.List(true), allowMerge))
{
frm.ShowDialog();
if (frm.Selection != null)
return frm.Selection;
}
return null;
}
internal void MoveKot(BillItemKey currentKot)
{
if (_voucher.VoucherID == Guid.Empty || IsPrintedOrVoid(_voucher))
return;
var kot = currentKot;
if (kot == null)
return;
var table = GetTableForMove(true);
if (table == null)
return;
if (table.FoodTableID == _voucher.Table.FoodTableID)
return;
if (table.VoucherID != null)
if (IsPrintedOrVoid(table.VoucherID.Value))
return;
var kotCount = _bill.Keys.Count(x => x.BillItemType == BillItemType.Kot && x.KotID != Guid.Empty);
var voucherID = Guid.Empty;
if (table.VoucherID == null && kotCount > 1)
{
//Move Kot
if (Session.IsAllowed("Move Kot"))
voucherID = VoucherBI.MoveKot(kot.KotID, table.FoodTableID);
}
else if (table.VoucherID.HasValue && kotCount > 1)
{
//Merge Kot
if (Session.IsAllowed("Merge Kots"))
voucherID = VoucherBI.MergeKot(kot.KotID, table.VoucherID.Value);
}
else if (table.VoucherID == null && kotCount == 1)
{
//Move Table
if (Session.IsAllowed("Move Table"))
{
VoucherBI.MoveTable(_voucher.VoucherID, table.FoodTableID);
voucherID = _voucher.VoucherID;
}
}
else if (table.VoucherID.HasValue && kotCount == 1)
{
//Merge Table
if (Session.IsAllowed("Merge Tables"))
voucherID = VoucherBI.MergeTables(_voucher.VoucherID, table.VoucherID.Value);
}
if (voucherID != Guid.Empty)
{
LoadBill(voucherID);
}
}
internal void MoveTable()
{
if (_voucher.VoucherID == Guid.Empty)
return;
var allowMerge = !IsPrintedOrVoid(_voucher);
var table = GetTableForMove(allowMerge);
if (table == null)
return;
if (table.FoodTableID == _voucher.Table.FoodTableID)
return;
if (table.VoucherID.HasValue)
if (IsPrintedOrVoid(table.VoucherID.Value))
return;
if (table.VoucherID.HasValue)
{
if (Session.IsAllowed("Merge Tables"))
{
LoadBill(VoucherBI.MergeTables(_voucher.VoucherID, table.VoucherID.Value));
}
}
else
{
if (Session.IsAllowed("Move Table"))
{
LoadBill(VoucherBI.MoveTable(_voucher.VoucherID, table.FoodTableID));
}
}
}
#endregion
#region Save
public void SplitBill()
{
bool isPrinted = false;
#region Permissions
if (!Session.IsAllowed("Split Bill"))
return;
if (_voucher.VoucherID == Guid.Empty)
return; // must be existing non void bill
var dbVoucher = VoucherBI.Get(_voucher.VoucherID);
if (dbVoucher.Void)
{
MessageBox.Show(string.Format("This Bill is already void.\nReason: {0}", _voucher.VoidReason), "Bill already Voided", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;// must be a non void bill
}
if (dbVoucher.Printed && !Session.IsAllowed("Edit Printed Bill"))
{
MessageBox.Show("This Bill is already Printed.\nYou do not have the authority to alter it", "Bill already Printed", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;// not allowed to edit printed bill
}
isPrinted = dbVoucher.Printed;
#endregion
#region Get Move List
HashSet<string> splitList = null;
using (var frm = new DiscountForm(ProductGroupBI.GetProductGroupTypes()))
if (frm.ShowDialog() == DialogResult.OK)
frm.Selection(out splitList);
if (splitList == null || splitList.Count == 0)
return;
var listFirst = _bill.Where(x => x.Key.BillItemType != BillItemType.Kot && x.Key.KotID != Guid.Empty && splitList.Contains(x.Value.inventory.Product.ProductGroup.GroupType));
var listSecond = _bill.Where(x => x.Key.BillItemType != BillItemType.Kot && x.Key.KotID != Guid.Empty && !splitList.Contains(x.Value.inventory.Product.ProductGroup.GroupType));
if (listFirst.Count() == 0 || listSecond.Count() == 0)
return; // all or none items selected to be moved
#endregion
var table = GetTableForMove(false);
if (table == null)
return;
#region new voucherFirst
var voucherFirst = new Voucher(Session.User, _voucher.Customer)
{
Table = table,
Printed = isPrinted,
Void = false,
Narration = "",
VoucherType = _voucher.VoucherType
};
var kotFirst = GetKot(listFirst);
if (kotFirst != null)
voucherFirst.Kots.Add(kotFirst);
#endregion
#region new voucherSecond
var voucherSecond = new Voucher(Session.User, _voucher.Customer)
{
Table = _voucher.Table,
Printed = isPrinted,
Void = false,
Narration = "",
VoucherType = _voucher.VoucherType
};
var kotSecond = GetKot(listSecond);
if (kotSecond != null)
voucherSecond.Kots.Add(kotSecond);
#endregion
VoucherBI.SplitBill(_voucher.VoucherID, voucherFirst, voucherSecond);
if (isPrinted)
{
Thermal.PrintBill(voucherFirst.VoucherID);
Thermal.PrintBill(voucherSecond.VoucherID);
}
LoadBill(voucherFirst.VoucherID);
}
public bool VoidBill()
{
#region Check conditions and Permissions
if (_voucher.VoucherID == Guid.Empty || _voucher.Void || !Session.IsAllowed("Void Bill"))
return false;
if (MessageBox.Show("Are you sure you want to void this bill?", "Void Bill", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2) != DialogResult.Yes)
return false;
#endregion
var reasons = new string[] {
"Discount",
"Printing Fault",
"Item Changed",
"Quantity Reduced",
"Costing Bill for Party",
"Cashier Mistake",
"Management Freesale",
"Other"
};
using (var voidReason = new VoidReasonListForm(reasons))
{
voidReason.ShowDialog();
if (voidReason.SelectedItem == null)
{
MessageBox.Show("Please Select a reason if you want to void the bill", "Bill NOT Voided", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
return false;
}
VoucherBI.VoidBill(_voucher.VoucherID, voidReason.SelectedItem, !_editVoucherID.HasValue);
}
ClearBill();
return true;
}
public bool SaveAndPrintKot()
{
#region Check if Allowed
if (!Session.IsAllowed("Print Kot") || _bill.Count(x => x.Key.BillItemType != BillItemType.Kot) == 0)
return false;
bool isPrinted = false, isVoid = false;
if (_voucher.VoucherID != Guid.Empty)
{
var dbVoucher = VoucherBI.Get(_voucher.VoucherID);
isPrinted = dbVoucher.Printed;
isVoid = dbVoucher.Void;
}
if (isVoid)
{
MessageBox.Show(string.Format("This Bill is already void.\nReason: {0}", _voucher.VoidReason), "Bill already Voided", MessageBoxButtons.OK, MessageBoxIcon.Error);
return false;
}
if (isPrinted)
{
MessageBox.Show(string.Format("This Bill is already printed and a kot cannot be added", _voucher.VoidReason), "Bill already Printed", MessageBoxButtons.OK, MessageBoxIcon.Error);
return false;
}
if (_voucher.VoucherID != Guid.Empty && IsPrintedOrVoid(_voucher))
return false;
#endregion
//Save
var saved = _voucher.VoucherID == Guid.Empty ? InsertVoucher(false, !_editVoucherID.HasValue) : UpdateVoucher(false, !_editVoucherID.HasValue);
//Print
if (!_editVoucherID.HasValue && saved.HasValue)
Thermal.PrintKot(_voucher.VoucherID, saved.Value);
//Cleanup
ClearBill();
return true;
}
public bool CanSaveBill(bool isPrinted, bool isVoid)
{
if (!Session.IsAllowed("Print Bill") || _bill.Count(x => x.Key.BillItemType != BillItemType.Kot) == 0)
return false;
if (isVoid)
{
MessageBox.Show(string.Format("This Bill is already void.\nReason: {0}", _voucher.VoidReason), "Bill already Voided", MessageBoxButtons.OK, MessageBoxIcon.Error);
return false;
}
if (isPrinted && !Session.IsAllowed("Edit Printed Bill"))
return false;
return true;
}
public bool SaveAndPrintBill(bool isPrinted, decimal amount)
{
if (isPrinted)
{
SaveReprintOrDiscountBill(amount);
}
else
{
// Ask for VoucherType only for new bill, if none, then cancel
using (var frm = new VoucherTypeForm())
{
frm.ShowDialog();
if (!frm.Selection.HasValue)
return false;
_voucher.VoucherType = frm.Selection.Value;
}
if (_voucher.VoucherID == Guid.Empty)
InsertVoucher(true, !_editVoucherID.HasValue);
else
UpdateVoucher(true, !_editVoucherID.HasValue);
}
Thermal.PrintBill(_voucher.VoucherID);
ClearBill();
return true;
}
private void SaveReprintOrDiscountBill(decimal oldAmount)
{
var amountChanged = oldAmount != _bill.Where(x => x.Key.BillItemType != BillItemType.Kot && x.Key.KotID != Guid.Empty).Sum(x => x.Value.inventory.Net);
var itemsChanged = _bill.Where(x => x.Key.BillItemType != BillItemType.Kot && x.Key.KotID == Guid.Empty).Count() != 0;
if (amountChanged || itemsChanged) // Discount or Products changed
{
#region new voucherFirst
var newVoucher = new Voucher(Session.User, _voucher.Customer)
{
Table = _voucher.Table,
Printed = true,
Void = false,
Narration = "",
VoucherType = _voucher.VoucherType
};
var kotNew = GetKot(_bill.Where(x => x.Key.BillItemType != BillItemType.Kot));
if (kotNew != null)
newVoucher.Kots.Add(kotNew);
#endregion
newVoucher = VoucherBI.DiscountPrintedBill(_voucher.VoucherID, newVoucher);
_editVoucherID = null;
LoadBill(newVoucher.VoucherID);
}
else
{
ReprintBI.Insert(new Reprint() { User = Session.User, Voucher = _voucher });
}
}
private Guid? InsertVoucher(bool finalBill, bool updateTable)
{
_voucher.Printed = finalBill;
_voucher.Void = false;
_voucher.Narration = "";
var kot = GetKot(_bill.Where(x => x.Key.KotID == Guid.Empty));
if (kot == null)
return null;
_voucher.Kots.Add(kot);
_voucher = VoucherBI.Insert(_voucher, updateTable);
return _voucher.Kots[0].KotID;
}
private Guid? UpdateVoucher(bool finalBill, bool updateTable)
{
var voucher = VoucherBI.Get(_voucher.VoucherID);
voucher.User = Session.User;
voucher.Customer = _voucher.Customer;
voucher.Printed = finalBill;
voucher.VoucherType = _voucher.VoucherType;
foreach (var item in _bill.Where(x => x.Key.BillItemType != BillItemType.Kot && x.Key.KotID != Guid.Empty))
{
var i = voucher.Kots.Single(x => x.KotID == item.Key.KotID).Inventories.Single(x => x.Product.ProductID == item.Key.ProductID && x.IsHappyHour == item.Value.inventory.IsHappyHour);
i.Discount = item.Value.inventory.Discount;
i.Price = item.Value.inventory.Price;
}
if (!_voucher.Printed)
{
var kot = GetKot(_bill.Where(x => x.Key.KotID == Guid.Empty));
if (kot != null)
voucher.Kots.Add(kot);
}
try
{
var kotID = VoucherBI.Update(voucher, updateTable);
return kotID;
}
catch (ArgumentException ex)
{
MessageBox.Show(ex.Message);
return null;
}
}
private static Kot GetKot(IEnumerable<KeyValuePair<BillItemKey, BillItemValue>> list)
{
var kot = new Kot();
foreach (var item in list)
{
if (item.Key.BillItemType == BillItemType.Kot)
continue;
if (item.Value.inventory.Quantity == 0)
continue;
var happyHour = item.Key.BillItemType == BillItemType.HappyHourProduct;
var productID = item.Key.ProductID;
var oldInv = kot.Inventories.SingleOrDefault(x => x.Product.ProductID == productID && x.IsHappyHour == happyHour);
if (oldInv != null)
{
oldInv.Quantity += item.Value.inventory.Quantity;
if (oldInv.Quantity == 0)
kot.Inventories.Remove(oldInv);
}
else
{
var inv = new Inventory
{
Product = item.Value.inventory.Product,
Quantity = item.Value.inventory.Quantity,
Price = item.Value.inventory.Price,
IsHappyHour = item.Value.inventory.IsHappyHour,
Discount = item.Value.inventory.Discount,
ServiceCharge = item.Value.inventory.ServiceCharge,
IsScTaxable = item.Value.inventory.IsScTaxable,
ServiceTaxRate = item.Value.inventory.ServiceTaxRate,
VatRate = item.Value.inventory.VatRate,
ServiceTax = item.Value.inventory.ServiceTax,
Vat = item.Value.inventory.Vat
};
foreach (var mod in item.Value.inventory.InventoryModifier)
inv.InventoryModifier.Add(new InventoryModifier { Modifier = mod.Modifier });
kot.Inventories.Add(inv);
}
}
return kot.Inventories.Count == 0 ? null : kot;
}
#endregion
#region InputBox
private bool GetInput(string prompt, ref decimal amount)
{
var result = InputBox.Show(prompt, amount.ToString(), InputBox_Validating);
if (!result.OK)
return false;
return decimal.TryParse(result.Text, out amount);
}
private bool GetInput(string prompt, ref string info)
{
var result = InputBox.Show(prompt, info, InputBox_Validating);
if (!result.OK)
return false;
info = result.Text.Trim();
return !string.IsNullOrEmpty(info);
}
#endregion
}
}