namespace Admin.NET.Plugin.AiDOP.MaterialWarehouse.InventoryPosting.Receipt;

/// <summary>C6 采购收货回写对账结果（前值→delta→后值 + 未收余量 + 完成状态）。</summary>
public sealed class PurchaseReceiptWritebackResult
{
    public decimal QtyOrdered { get; set; }
    public decimal ReturnedQty { get; set; }
    public decimal BeforeReceivedQty { get; set; }
    public decimal AcceptedQty { get; set; }
    public decimal AfterReceivedQty { get; set; }
    public decimal BeforeOutstandingQty { get; set; }
    public decimal AfterOutstandingQty { get; set; }
    /// <summary>明细完成（LIVE PurOrdMaster 关闭判据：(RctQty-QtyReturned)&gt;=QtyOrded）。</summary>
    public bool DetailCompleted { get; set; }
}

/// <summary>
/// C6 采购收货回写量变纯计算（无 DB，可全量单测）。据 pr_WMS_UpdatePurOrdRctTransactionProcessing2 LIVE：
///   正常收货 PurOrdDetail.RctQty += QtyReceived（L147）；关闭判据 (RctQty-QtyReturned)&gt;=QtyOrded（L223）。
///   未收余量 = QtyOrded - (RctQty - QtyReturned)。
/// </summary>
public static class PurchaseReceiptWritebackCalculator
{
    public static PurchaseReceiptWritebackResult Compute(decimal orderedQty, decimal beforeReceivedQty, decimal returnedQty, decimal acceptedQty)
    {
        var afterReceived = beforeReceivedQty + acceptedQty;
        var effectiveBefore = beforeReceivedQty - returnedQty;
        var effectiveAfter = afterReceived - returnedQty;
        return new PurchaseReceiptWritebackResult
        {
            QtyOrdered = orderedQty,
            ReturnedQty = returnedQty,
            BeforeReceivedQty = beforeReceivedQty,
            AcceptedQty = acceptedQty,
            AfterReceivedQty = afterReceived,
            BeforeOutstandingQty = orderedQty - effectiveBefore,
            AfterOutstandingQty = orderedQty - effectiveAfter,
            DetailCompleted = effectiveAfter >= orderedQty,
        };
    }
}