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

/// <summary>
/// MRB 挑选（IQC ②⑤）任务服务。据 Phase 6A/6C：挑选分支 **不进 C5 库存过账**，只创建
/// `PurOrdRctByMRBChoose` 移动任务（LIVE pr_WMS_SaveIQCResult L270-281，PartRctFlag=1 后 goto IQCEnd）。
/// 与 <see cref="IqcReceiptOrchestrator"/> 分离，避免让挑选强行进入 Inventory Posting。
/// 幂等由 TaskID(=QCNbr) 的 DB UNIQUE 兜底。
/// </summary>
public sealed class IqcMrbSelectionTaskService
{
    private readonly IIqcReceiptUnitOfWorkFactory _factory;

    public IqcMrbSelectionTaskService(IIqcReceiptUnitOfWorkFactory factory)
    {
        _factory = factory ?? throw new ArgumentNullException(nameof(factory));
    }

    public async Task<IqcReceiptResult> PostAsync(IqcMrbSelectionCommand m)
    {
        if (m == null) throw new ArgumentNullException(nameof(m));

        await using var uow = _factory.Create();
        try
        {
            await uow.BeginAsync(m.TenantId, m.DomainCode);       // 任务-only：仅开事务，无库存锁
            await uow.WriteMobileTaskAsync(MobileTaskBuilder.MrbChoose(m));   // 无 C5/C6
            // Phase 7C A3：完成锚（与任务同事务提交）——闭合 commit→MarkPosted 崩溃窗口
            await uow.WriteCompletionAsync(new IqcCompletionMarker
            {
                TenantId = m.TenantId, DomainCode = m.DomainCode, FbillNo = m.Fbillno,
                PostingId = m.PostingId, RouteKind = "MrbChoose",
            });
            await uow.CommitAsync();
            return new IqcReceiptResult { Outcome = IqcReceiptOutcome.Success, WrittenRows = 1, LegacyReturnMsg = "保存成功" };
        }
        catch (Exception ex)
        {
            try { await uow.RollbackAsync(); } catch { }
            return new IqcReceiptResult { Outcome = IqcReceiptOutcome.Error, WrittenRows = 0, Reason = ex.Message, LegacyReturnMsg = "保存失败，" + (ex.Message ?? string.Empty) };
        }
    }
}