using Admin.NET.Plugin.AiDOP.Order;

namespace Admin.NET.Plugin.AiDOP.WorkOrder;

/// <summary>
/// 工单齐套检查动作：重新执行资源检查（BOM 展开 + 库存/在途缺口计算），
/// 将新结果写入 b_examine_result / b_bom_child_examine，并更新 mes_morder.MaterialSituation。
/// </summary>
public class WorkOrderKittingCheckService : ITransient
{
    private readonly ISqlSugarClient _db;
    private readonly MaterialRequirementCalculator _calculator;
    private readonly ResourceCheckResultWriter _writer;

    public WorkOrderKittingCheckService(
        ISqlSugarClient db,
        MaterialRequirementCalculator calculator,
        ResourceCheckResultWriter writer)
    {
        _db = db;
        _calculator = calculator;
        _writer = writer;
    }

    /// <summary>批量齐套检查：租户下所有 Status='p'/'r' 的工单逐一重新检查。</summary>
    public async Task<KittingCheckResult> CheckTenantWorkOrdersAsync(long tenantId, string account)
    {
        var workOrds = await _db.Ado.SqlQueryAsync<string>(
            """
            SELECT WorkOrd FROM WorkOrdMaster
            WHERE tenant_id = @TenantId
              AND LOWER(TRIM(IFNULL(Status,''))) IN ('p', 'r')
            ORDER BY WorkOrd
            """,
            new SugarParameter("@TenantId", tenantId));

        var result = new KittingCheckResult();
        foreach (var wo in workOrds)
        {
            var one = await CheckSingleAsync(tenantId, wo, account);
            result.CheckedCount++;
            if (one.IsKitted) result.KittedCount++;
            else result.ShortageCount++;
        }
        return result;
    }

    /// <summary>
    /// 单工单齐套检查：以工单为主，重新 BOM 展开 + 库存计算 → 写入检查结果。
    /// BusinessID>0 时从订单明细行加载数据；BusinessID=0 时从工单/生产工单构造参数。
    /// </summary>
    public async Task<SingleKittingCheckResult> CheckSingleAsync(long tenantId, string workOrd, string account)
    {
        var wo = workOrd.Trim();

        // 1. 从 WorkOrdMaster + mes_morder 获取工单数据
        var wm = await LoadWorkOrdMasterAsync(tenantId, wo);
        if (wm is null)
            throw Oops.Oh($"工单 {wo} 不存在或已关闭");

        OrderWorkOrderGenerationService.OrderEntryLine entry;
        OrderWorkOrderGenerationService.OrderHeader order;

        if (wm.BusinessId > 0)
        {
            // 2a. 有关联订单明细行：从 crm_seorderentry / crm_seorder 加载
            var loadedEntry = await LoadOrderEntryAsync(wm.BusinessId, tenantId);
            if (loadedEntry is not null)
            {
                entry = loadedEntry;
                var loadedOrder = await LoadOrderHeaderAsync(entry.SeOrderId, tenantId);
                order = loadedOrder ?? BuildFallbackOrderFromWorkOrder(wm);
            }
            else
            {
                // 明细行已删除/不存在，回退到工单数据
                entry = BuildEntryFromWorkOrder(wm);
                order = BuildFallbackOrderFromWorkOrder(wm);
            }
        }
        else
        {
            // 2b. 无关联订单明细行（BusinessID=0）：从工单构造检查参数
            entry = BuildEntryFromWorkOrder(wm);
            order = BuildFallbackOrderFromWorkOrder(wm);
        }

        // 3. 重新执行资源检查（BOM 展开 + 库存/在途缺口计算）
        var warnings = new List<string>();
        var lines = await _calculator.BuildLinesAsync(order, entry, warnings);

        // 4. 将新结果写入 b_examine_result / b_bom_child_examine 并更新 mes_morder
        var checkResult = await _writer.WriteAsync(order, entry, wo, wm.MorderId, lines, account, DateTime.Now);

        return new SingleKittingCheckResult
        {
            WorkOrd = wo,
            IsKitted = !checkResult.HasShortage,
            ShortageLineCount = checkResult.HasShortage
                ? lines.Count(x => x.IsUse == 1 && x.LackQty > 0)
                : 0,
            MaterialSituation = checkResult.HasShortage ? "缺料" : "齐套"
        };
    }

    /// <summary>从 WorkOrdMaster + mes_morder 数据构造 OrderEntryLine。</summary>
    private static OrderWorkOrderGenerationService.OrderEntryLine BuildEntryFromWorkOrder(WorkOrdMasterRow wm)
    {
        return new OrderWorkOrderGenerationService.OrderEntryLine
        {
            Id = wm.BusinessId,
            SeOrderId = 0,
            BillNo = wm.SalesJob,
            EntrySeq = 0,
            ItemNumber = wm.WoItemNum,
            ItemName = wm.WoItemName,
            Specification = wm.MorderModel,
            Unit = wm.MorderUnit,
            BomNumber = wm.MorderBomNumber ?? wm.WoBomFormula,
            Qty = wm.WoQtyOrded,
            PlanDate = wm.WoDueDate,
            SysCapacityDate = wm.WoDueDate,
            Progress = null,
            Urgent = wm.WoUrgent,
            FactoryId = null,
            CompanyId = null,
            TenantId = wm.WoTenantId
        };
    }

    /// <summary>从 WorkOrdMaster 数据构造兜底 OrderHeader。</summary>
    private static OrderWorkOrderGenerationService.OrderHeader BuildFallbackOrderFromWorkOrder(WorkOrdMasterRow wm)
    {
        return new OrderWorkOrderGenerationService.OrderHeader
        {
            Id = 0,
            BillNo = wm.SalesJob,
            CustomNo = wm.WoCustNo,
            Urgent = wm.WoUrgent,
            FactoryId = null,
            TenantId = wm.WoTenantId
        };
    }

    // ──────────────── 数据加载 ────────────────

    private async Task<WorkOrdMasterRow?> LoadWorkOrdMasterAsync(long tenantId, string workOrd)
    {
        var rows = await _db.Ado.SqlQueryAsync<WorkOrdMasterRow>(
            """
            SELECT wm.RecID, wm.WorkOrd, wm.BusinessID, wm.SalesJob,
                   wm.ItemNum AS WoItemNum, wm.ItemName AS WoItemName,
                   wm.QtyOrded AS WoQtyOrded, wm.DueDate AS WoDueDate,
                   wm.Urgent AS WoUrgent, wm.CustNo AS WoCustNo,
                   wm.BOMFormula AS WoBomFormula,
                   wm.tenant_id AS WoTenantId,
                   morder.Id AS MorderId,
                   morder.bom_number AS MorderBomNumber,
                   morder.product_code AS MorderProductCode,
                   morder.product_name AS MorderProductName,
                   morder.fmodel AS MorderModel,
                   morder.unit AS MorderUnit
            FROM WorkOrdMaster wm
            LEFT JOIN mes_morder morder
                ON morder.morder_no = wm.WorkOrd
               AND morder.tenant_id = wm.tenant_id
               AND morder.IsDeleted = 0
            WHERE wm.tenant_id = @TenantId
              AND wm.WorkOrd = @WorkOrd
              AND LOWER(TRIM(IFNULL(wm.Status,''))) <> 'c'
            ORDER BY wm.RecID DESC
            LIMIT 1
            """,
            new SugarParameter("@TenantId", tenantId),
            new SugarParameter("@WorkOrd", workOrd));
        return rows.FirstOrDefault();
    }

    private async Task<OrderWorkOrderGenerationService.OrderEntryLine?> LoadOrderEntryAsync(long entryId, long tenantId)
    {
        var rows = await _db.Ado.SqlQueryAsync<OrderWorkOrderGenerationService.OrderEntryLine>(
            """
            SELECT
                Id, seorder_id AS SeOrderId, bill_no AS BillNo, entry_seq AS EntrySeq,
                item_number AS ItemNumber, item_name AS ItemName, specification AS Specification,
                unit AS Unit, bom_number AS BomNumber, qty AS Qty,
                plan_date AS PlanDate, sys_capacity_date AS SysCapacityDate,
                progress AS Progress, urgent AS Urgent,
                factory_id AS FactoryId, company_id AS CompanyId, tenant_id AS TenantId
            FROM crm_seorderentry
            WHERE Id = @Id AND tenant_id = @TenantId AND IsDeleted = 0
            LIMIT 1
            """,
            new SugarParameter("@Id", entryId),
            new SugarParameter("@TenantId", tenantId));
        return rows.FirstOrDefault();
    }

    private async Task<OrderWorkOrderGenerationService.OrderHeader?> LoadOrderHeaderAsync(long orderId, long tenantId)
    {
        var rows = await _db.Ado.SqlQueryAsync<OrderWorkOrderGenerationService.OrderHeader>(
            """
            SELECT Id, bill_no AS BillNo, custom_no AS CustomNo, urgent AS Urgent,
                   factory_id AS FactoryId, tenant_id AS TenantId
            FROM crm_seorder
            WHERE Id = @Id AND tenant_id = @TenantId AND IsDeleted = 0
            LIMIT 1
            """,
            new SugarParameter("@Id", orderId),
            new SugarParameter("@TenantId", tenantId));
        return rows.FirstOrDefault();
    }

    // ──────────────── 内部类 ────────────────

    private sealed class WorkOrdMasterRow
    {
        public long RecID { get; set; }
        public string WorkOrd { get; set; } = string.Empty;
        public long BusinessId { get; set; }
        public string? SalesJob { get; set; }
        public long? MorderId { get; set; }
        // WorkOrdMaster 字段
        public string? WoItemNum { get; set; }
        public string? WoItemName { get; set; }
        public decimal WoQtyOrded { get; set; }
        public DateTime? WoDueDate { get; set; }
        public int WoUrgent { get; set; }
        public string? WoCustNo { get; set; }
        public string? WoBomFormula { get; set; }
        public long WoTenantId { get; set; }
        // mes_morder 字段
        public string? MorderBomNumber { get; set; }
        public string? MorderProductCode { get; set; }
        public string? MorderProductName { get; set; }
        public string? MorderModel { get; set; }
        public string? MorderUnit { get; set; }
    }

    public sealed class KittingCheckResult
    {
        public int CheckedCount { get; set; }
        public int KittedCount { get; set; }
        public int ShortageCount { get; set; }
    }

    public sealed class SingleKittingCheckResult
    {
        public string WorkOrd { get; set; } = string.Empty;
        public bool IsKitted { get; set; }
        public int ShortageLineCount { get; set; }
        public string MaterialSituation { get; set; } = string.Empty;
    }
}