using Admin.NET.Plugin.AiDOP.MaterialWarehouse.InventoryPosting.Receipt;
using Xunit;

namespace Admin.NET.Plugin.AiDOP.Tests.S5.MaterialWarehouse;

/// <summary>
/// Phase 6C-2：C6 采购收货回写对账（据 pr_WMS_UpdatePurOrdRctTransactionProcessing2 LIVE：RctQty+=Accepted；完成 (收-退)>=订）。
/// 纯计算 + 编排后 shadow 字段填充，供 L4 逐单对账。
/// </summary>
public class PurchaseReceiptWritebackTests
{
    private const long Tenant = 797403760988229L;

    // §九 示例：订100 已收60 本次40 → 收满、余0、完成
    [Fact]
    public void Compute_PartialToComplete_MatchesLive()
    {
        var r = PurchaseReceiptWritebackCalculator.Compute(orderedQty: 100m, beforeReceivedQty: 60m, returnedQty: 0m, acceptedQty: 40m);
        Assert.Equal(60m, r.BeforeReceivedQty);
        Assert.Equal(40m, r.AcceptedQty);
        Assert.Equal(100m, r.AfterReceivedQty);
        Assert.Equal(40m, r.BeforeOutstandingQty);
        Assert.Equal(0m, r.AfterOutstandingQty);
        Assert.True(r.DetailCompleted);
    }

    [Fact]
    public void Compute_PartialNotComplete()
    {
        var r = PurchaseReceiptWritebackCalculator.Compute(100m, 20m, 0m, 30m);
        Assert.Equal(50m, r.AfterReceivedQty);
        Assert.Equal(50m, r.AfterOutstandingQty);
        Assert.False(r.DetailCompleted);
    }

    [Fact]
    public void Compute_WithReturn_CompletionUsesReceivedMinusReturned()
    {
        // 订100 已收100 退20 本次20 → (收120-退20)=100>=订 → 完成
        var r = PurchaseReceiptWritebackCalculator.Compute(100m, 100m, 20m, 20m);
        Assert.Equal(120m, r.AfterReceivedQty);
        Assert.Equal(0m, r.AfterOutstandingQty);
        Assert.True(r.DetailCompleted);
    }

    [Fact]
    public void Compute_OverReceipt_OutstandingNegative_Completed()
    {
        var r = PurchaseReceiptWritebackCalculator.Compute(100m, 90m, 0m, 20m);
        Assert.Equal(110m, r.AfterReceivedQty);
        Assert.Equal(-10m, r.AfterOutstandingQty);   // 超收 → 余量负
        Assert.True(r.DetailCompleted);
    }

    // 编排后 C6 shadow 落库并含对账字段
    [Fact]
    public async Task Orchestrator_Populates_C6ShadowReconciliationFields()
    {
        var db = new FakeInventoryDatabase();
        db.SeedMaster(Tenant, "8010", "IT-1", "L1");
        var orch = new IqcReceiptOrchestrator(new FakeIqcReceiptUnitOfWorkFactory(db));
        var receipt = new IqcAcceptedReceipt
        {
            TenantId = Tenant, DomainCode = "8010", PostingId = 1, TransactionGroupId = 100, RctNbr = "RCT-1",
            ItemNum = "IT-1", Location = "L1", AcceptedQty = 40m, UmConversion = 1m,
            PurOrd = "PO-1", PurLine = 1, Potype = "po", OrderedQty = 100m, BeforeReceivedQty = 60m, ReturnedQty = 0m, User = "t",
        };
        var gate = new PurchaseReceiptGateInput { HasPendingReceipt = true, AcceptedQty = 40m, HasReceivableDetails = true };

        var r = await orch.PostAsync(receipt, gate);
        Assert.Equal(IqcReceiptOutcome.Success, r.Outcome);

        var key = $"{Tenant}|8010|1|PO-1|1";
        var wb = db.ReceiptWriteback[key];
        Assert.Equal(40m, wb.AcceptedQty);
        Assert.Equal(100m, wb.AfterReceivedQty);
        Assert.Equal(0m, wb.AfterOutstandingQty);
        Assert.True(wb.DetailCompleted);
    }
}