/// <summary>
/// 確認賣出時經過的資料
/// </summary>
/// <param name="product"></param>
/// <param name="txViewModel"></param>
/// <param name="txRecord">賣出時更新的交易資料</param>
/// <param name="oddTransaction">賣出時被合併的零股資料</param>
private void CheckSoldReceived(Product product, TransactionViewModel txViewModel, TransactionRecord txRecord, TransactionRecord oddTransaction = null)
{
dbConnection.Received().QueryableTransactionRecords.OrderBy(p => p.TransactionTime).ThenByDescending(p => p.UnitPrice)
.Where(p => p.ProductSeq == txViewModel.ProductSeq && p.InStock > 0);
//零股交易且剩餘零股小於交易零股的話將零股合併後再計算
var needMargeOdd = oddTransaction != null && oddTransaction.InStock < txViewModel.Num;
if (needMargeOdd)
{
//SetMargeModel
txRecord.InStock += oddTransaction.InStock;
txRecord.TotalPrice += oddTransaction.InStock * oddTransaction.UnitPrice;
txRecord.UnitPrice = txRecord.TotalPrice / txRecord.InStock;
dbConnection.Modified(Arg.Is <TransactionRecord>(p =>
p.Seq == oddTransaction.Seq &&
p.InStock == 0
), EntityState.Modified);
}
var updateStock = txRecord.InStock - txViewModel.Num;
dbConnection.Received()
.Modified(Arg.Is <TransactionRecord>(p => p.ProductSeq == product.ProductSeq && p.InStock == updateStock),
EntityState.Modified);
dbConnection.Received()
.Modified(Arg.Is <Bookkeeping>(p => p.ProductSeq == txViewModel.ProductSeq), EntityState.Added);
//判斷沒有經過買入的資料
dbConnection.DidNotReceive().Modified(Arg.Is <TransactionRecord>(p => p.ProductSeq == product.ProductSeq), EntityState.Added);
dbConnection.DidNotReceive()
.Modified(Arg.Is <TransactionRecord>(p => p.ProductSeq == product.ProductSeq && p.Num == txViewModel.Num),
EntityState.Added);
}
/// <summary>
/// 新增配股配息紀錄
/// </summary>
/// <param name="dividends"></param>
/// <returns></returns>
public string AddDividends(Dividends dividends)
{
dividends.CreateTime = DateTime.Now;
dbConnection.Modified(dividends, EntityState.Added);
dbConnection.SaveChanges();
return("Success");
}
public string EditProduct(Product product)
{
var isNewProduct = product.ProductSeq == 0;
if (!isNewProduct)
{
var oldData = dbConnection.QueryableProducts.FirstOrDefault(p => p.ProductSeq == product.ProductSeq);
if (oldData == null)
{
throw new DataNotFoundException();
}
oldData.ProductName = product.ProductName;
oldData.Remark = product.Remark;
oldData.Owner = product.Owner;
dbConnection.Modified(oldData, EntityState.Modified);
}
else
{
dbConnection.Modified(product, EntityState.Added);
}
try
{
dbConnection.SaveChanges();
if (isNewProduct)
{
assetRepository.AddNewAsset(product);
}
return("Success");
}
catch (Exception ee)
{
return(ee.Message);
}
}
/// <summary>
/// 建立完產品後會新增該產品的資產資料供日後計算
/// </summary>
/// <param name="product"></param>
public void AddNewAsset(Product ProductData)
{
CheckProductIsNull(ProductData);
if (CheckAssetIsNew(ProductData))
{
var newAsset = new Asset()
{
ProductSeq = ProductData.ProductSeq,
Num = 0,
TotalPrice = 0,
CreateTime = DateTime.Now,
UpdateTime = DateTime.Now,
};
dbConnection.Modified(newAsset, EntityState.Added);
dbConnection.SaveChanges();
}
}
/// <summary>
/// 交易紀錄_賣出
/// </summary>
/// <param name="transaction"></param>
/// <param name="transNum">交易數量(負數)</param>
/// <param name="transCost">交易成本(負數)</param>
public void Tx_SaleFunction(TransactionViewModel transaction, out int transNum, out int transCost)
{
var tranList = dbConnection.QueryableTransactionRecords.OrderBy(p => p.TransactionTime).ThenByDescending(p => p.UnitPrice)
.Where(p => p.ProductSeq == transaction.ProductSeq && p.InStock > 0);
var updateTransaction = new TransactionRecord();
var oddTransaction = tranList.FirstOrDefault(p => p.InStock < 1000);
//除了零股足夠外其餘都直接取整張做交易
updateTransaction = tranList.FirstOrDefault(p => p.InStock == 1000);
if (transaction.Num < 1000)
{
//確認資產是否有零股且零股足夠交易
if (oddTransaction != null && oddTransaction.InStock >= transaction.Num)
{
updateTransaction = oddTransaction;
}
else if (oddTransaction != null)
{
//不夠的話賣出整張後把餘額合併到原本的零股
updateTransaction.InStock += oddTransaction.InStock;
updateTransaction.TotalPrice += oddTransaction.InStock * oddTransaction.UnitPrice;
updateTransaction.UnitPrice = updateTransaction.TotalPrice / updateTransaction.InStock;
//清除舊有的零股
oddTransaction.InStock = 0;
oddTransaction.Remark += $"零股賣出合併至編號:{updateTransaction.Seq}";
dbConnection.Modified(oddTransaction, EntityState.Modified);
}
}
updateTransaction.SaleTime = transaction.TransactionTime;
updateTransaction.SalePrice = transaction.UnitPrice;
updateTransaction.SaleTax = transaction.Fee;
updateTransaction.InStock -= transaction.Num;
updateTransaction.Remark += $"/ {transaction.Remark}";
dbConnection.Modified(updateTransaction, EntityState.Modified);
transNum = 0 - transaction.Num;
//扣的資產應為交易本身的成本而非售價(此cost為負數)
transCost = 0 - (int)(updateTransaction.UnitPrice * transaction.Num);
//計算本次收益到記帳本
var salePrice = (transaction.Num * transaction.UnitPrice);
var incom = salePrice + transCost - transaction.Fee - updateTransaction.AdministractionFee;
var newBookkepping = new Bookkeeping()
{
ProductSeq = transaction.ProductSeq,
Type = BookkeepingType.TransactionRecord.ToString(),
RelatedSeq = updateTransaction.Seq,
Amount = (int)incom,
CreateTime = DateTime.Now,
};
dbConnection.Modified(newBookkepping, EntityState.Added);
}