using Microsoft.Extensions.Logging;
using SqlSugar;

namespace Admin.NET.Plugin.AiDOP.DataPlatform.Wms;

/// <summary>
/// 165 ASN（mdp_stg_ship_trans / ASNBOLShipperDetail）是销售发运的权威来源。
/// InvTransHist.iss-so 只进入对账表，不写 SALES_SHIP。
/// </summary>
public sealed class ShipTransNeutralProjection : ITransient
{
    /// <summary>
    /// 贴源筛选。<c>mdp_stg_ship_trans</c> 一张表承载 ASN 明细与发运计划（LinkagePlan / ShippingPlanDetail），
    /// 只有 ASN 明细是发货实绩；计划行没有 ShipDate / QtyShipped，放进来会变成一批 0 数量的 SALES_SHIP。
    /// 同一张 ASN 还会因 Q13 的 <c>AIDOPDEV_MYSQL → AIDOP_NATIVE</c> 迁移在贴源留两份，
    /// 故聚合口径一律先按业务字段去重，不按贴源行数算。
    /// </summary>
    private const string AsnStagingFilter = """
        s.tenant_id=@tid
          AND s.source_table='ASNBOLShipperDetail'
          AND NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.ShipDate')),'null') IS NOT NULL
        """;

    /// <summary>ASN 发货时间。eff_date / trans_time / approved_time 同源，避免三处各写一遍。</summary>
    private const string ShipDateExpr = """
        STR_TO_DATE(SUBSTRING_INDEX(REPLACE(NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.ShipDate')),'null'),'T',' '),'.',1),'%Y-%m-%d %H:%i:%s')
        """;

    /// <summary>ASN 明细行号。165 推 OrdLine，历史样例里也出现过 Line，两者都取不到才退 0。</summary>
    private const string OrdLineExpr = """
        COALESCE(NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.OrdLine')),'null'),
                 NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.Line')),'null'), '0')
        """;

    private readonly ISqlSugarClient _db;
    private readonly MdpNeutralSourceGate _gate;
    private readonly ILogger _logger;

    public ShipTransNeutralProjection(ISqlSugarClient db, MdpNeutralSourceGate gate, ILoggerFactory loggerFactory)
    {
        _db = db;
        _gate = gate;
        _logger = loggerFactory.CreateLogger(nameof(ShipTransNeutralProjection));
    }

    public async Task<int> ProjectAsync(long tenantId, string? batchId, CancellationToken cancellationToken = default)
    {
        cancellationToken.ThrowIfCancellationRequested();
        if (!await _gate.AllowsAsync(tenantId, "INV_TRANS", "DOPDEMORQ_SQLSERVER", syncBatchId: batchId, cancellationToken: cancellationToken))
            return 0;

        await _db.Ado.ExecuteCommandAsync(
            """
            CREATE TABLE IF NOT EXISTS mdp_ship_recon_diff (
              id BIGINT AUTO_INCREMENT PRIMARY KEY,
              tenant_id BIGINT NOT NULL,
              source_system VARCHAR(50) NOT NULL,
              domain VARCHAR(50) NOT NULL,
              ord_nbr VARCHAR(120) NOT NULL,
              ord_line VARCHAR(50) NOT NULL,
              biz_date DATE NOT NULL,
              asn_qty DECIMAL(18,6) NOT NULL DEFAULT 0,
              inv_iss_so_qty DECIMAL(18,6) NOT NULL DEFAULT 0,
              diff_qty DECIMAL(18,6) NOT NULL,
              detected_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
              UNIQUE KEY uk_ship_recon (tenant_id, source_system, domain, ord_nbr, ord_line, biz_date)
            )
            """);

        var inserted = await _db.Ado.ExecuteCommandAsync(
            $"""
            INSERT INTO mdp_std_inv_trans
              (tenant_id, source_system, written_by, domain, src_rec_id, trans_type, src_trans_type_raw,
               biz_doc_type, src_biz_doc_type_raw, approved_flag, void_flag, summary_flag,
               item_num, lot_serial, location, dimension1, dimension2, site, qty_change, doc_qty,
               eff_date, trans_time, approved_time, ord_nbr, ref_task_no, shipper_num, create_user,
               history_from, as_of, sync_batch_id)
            SELECT
              @tid, 'DOPDEMORQ_SQLSERVER', 'DB_SYNC',
              IFNULL(NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.Domain')),'null'),''),
              LEFT(CONCAT('ASN:', IFNULL(NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.Id')),''), s.source_row_id), ':', {OrdLineExpr}), 200),
              'FG_SHIP',
              NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.ShType')),'null'),
              'SALES_SHIP', 'ASNBOLShipperDetail',
              IF(IFNULL(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.IsConfirm')),'0') IN ('1','true','True'), 1, 0),
              IF(IFNULL(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.Canceled')),'0') NOT IN ('0','')
                 OR IFNULL(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.IsActive')),'1') IN ('0','false'), 1, 0),
              0,
              COALESCE(wol.item_code,
                NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.CustItem')),'null'),
                NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.ContainerItem')),'null')),
              NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.LotSerial')),'null'),
              NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.Location')),'null'),
              IFNULL(NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.Dimension1')),'null'),''),
              IFNULL(NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.Dimension2')),'null'),''),
              NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.Site')),'null'),
              -ABS(IFNULL(CAST(NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.QtyShipped')),'null') AS DECIMAL(18,6)), 0)),
              CAST(NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.QtyToShip')),'null') AS DECIMAL(18,6)),
              {ShipDateExpr},
              {ShipDateExpr},
              {ShipDateExpr},
              NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.OrdNbr')),'null'),
              NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.OrdNbr')),'null'),
              NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.Id')),'null'),
              NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.CreateUser')),'null'),
              CURDATE(), NOW(), IFNULL(@batch, s.sync_batch_id)
            FROM mdp_stg_ship_trans s
            LEFT JOIN mdp_std_work_order_line wol
              ON wol.tenant_id=@tid AND wol.source_system='AIDOP_NATIVE' AND wol.doc_type='SALES_ORDER'
             AND wol.order_no=NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.OrdNbr')),'null')
             AND wol.line_no=CAST({OrdLineExpr} AS SIGNED)
            WHERE {AsnStagingFilter}
            ON DUPLICATE KEY UPDATE
              qty_change=VALUES(qty_change), doc_qty=VALUES(doc_qty), item_num=VALUES(item_num),
              location=VALUES(location), lot_serial=VALUES(lot_serial), trans_type=VALUES(trans_type),
              biz_doc_type=VALUES(biz_doc_type), eff_date=VALUES(eff_date),
              trans_time=VALUES(trans_time), approved_time=VALUES(approved_time),
              approved_flag=VALUES(approved_flag), void_flag=VALUES(void_flag),
              as_of=VALUES(as_of), sync_batch_id=VALUES(sync_batch_id)
            """,
            new SugarParameter("@tid", tenantId),
            new SugarParameter("@batch", batchId ?? ""));

        try
        {
            // gate log 是诊断记录，写失败不得中断发运投影。
            // 元素是 OrdNbr:OrdLine，按 70 字节估算，12 条低于 group_concat_max_len=1024。
            // 外层 LEFT(...,500) 只是列宽兜底。row_count 仍是全量 COUNT(DISTINCT ...)。
            await _db.Ado.ExecuteCommandAsync(
                $"""
                INSERT INTO mdp_source_gate_log
                  (tenant_id, std_object, source_system, gate_reason, row_count, sample_keys, sync_batch_id)
                SELECT @tid, 'INV_TRANS', 'DOPDEMORQ_SQLSERVER', 'SO_LINE_NOT_FOUND',
                       COUNT(DISTINCT CONCAT(IFNULL(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.Id')),''), ':', {OrdLineExpr})) AS asn_rows,
                       LEFT((
                         SELECT GROUP_CONCAT(x.sample_key ORDER BY x.sample_key SEPARATOR ',')
                         FROM (
                           SELECT DISTINCT CONCAT(IFNULL(JSON_UNQUOTE(JSON_EXTRACT(s2.raw_data,'$.OrdNbr')),''), ':', {OrdLineExpr.Replace("s.raw_data", "s2.raw_data")}) AS sample_key
                           FROM mdp_stg_ship_trans s2
                           LEFT JOIN mdp_std_work_order_line wol2
                             ON wol2.tenant_id=@tid AND wol2.source_system='AIDOP_NATIVE' AND wol2.doc_type='SALES_ORDER'
                            AND wol2.order_no=NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s2.raw_data,'$.OrdNbr')),'null')
                            AND wol2.line_no=CAST({OrdLineExpr.Replace("s.raw_data", "s2.raw_data")} AS SIGNED)
                           WHERE {AsnStagingFilter.Replace("s.tenant_id", "s2.tenant_id").Replace("s.source_table", "s2.source_table").Replace("s.raw_data", "s2.raw_data")}
                             AND wol2.id IS NULL
                             AND NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s2.raw_data,'$.CustItem')),'null') IS NULL
                             AND NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s2.raw_data,'$.ContainerItem')),'null') IS NULL
                           ORDER BY sample_key
                           LIMIT 12
                         ) x
                       ), 500),
                       @batch
                FROM mdp_stg_ship_trans s
                LEFT JOIN mdp_std_work_order_line wol
                  ON wol.tenant_id=@tid AND wol.source_system='AIDOP_NATIVE' AND wol.doc_type='SALES_ORDER'
                 AND wol.order_no=NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.OrdNbr')),'null')
                 AND wol.line_no=CAST({OrdLineExpr} AS SIGNED)
                WHERE {AsnStagingFilter}
                  AND wol.id IS NULL
                  AND NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.CustItem')),'null') IS NULL
                  AND NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.ContainerItem')),'null') IS NULL
                HAVING asn_rows>0
                """,
                new SugarParameter("@tid", tenantId),
                new SugarParameter("@batch", batchId ?? ""));
        }
        catch (Exception ex)
        {
            _logger.LogWarning(ex,
                "[ShipTransNeutralProjection] SO_LINE_NOT_FOUND gate log 写入失败，不影响发运投影。tenant={Tenant}",
                tenantId);
        }

        await _db.Ado.ExecuteCommandAsync(
            $"""
            INSERT INTO mdp_ship_recon_diff
              (tenant_id, source_system, domain, ord_nbr, ord_line, biz_date, asn_qty, inv_iss_so_qty, diff_qty)
            SELECT @tid, 'DOPDEMORQ_SQLSERVER', d.domain, d.ord_nbr, d.ord_line, d.biz_date,
                   d.asn_qty, d.iss_qty, d.asn_qty - d.iss_qty
            FROM (
              SELECT domain, ord_nbr, IFNULL(ord_line,'') ord_line, biz_date,
                     SUM(asn_qty) asn_qty, SUM(iss_qty) iss_qty
              FROM (
                SELECT a.domain, a.ord_nbr, a.ord_line, a.biz_date, a.asn_qty, 0 iss_qty
                FROM (
                  SELECT IFNULL(NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.Domain')),'null'),'') domain,
                         IFNULL(NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.OrdNbr')),'null'),'') ord_nbr,
                         IFNULL(NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.OrdLine')),'null'),'') ord_line,
                         DATE({ShipDateExpr}) biz_date,
                         IFNULL(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.Id')),'') asn_id,
                         MAX(ABS(IFNULL(CAST(NULLIF(JSON_UNQUOTE(JSON_EXTRACT(s.raw_data,'$.QtyShipped')),'null') AS DECIMAL(18,6)),0))) asn_qty
                  FROM mdp_stg_ship_trans s
                  WHERE {AsnStagingFilter}
                  GROUP BY domain, ord_nbr, ord_line, biz_date, asn_id
                ) a
                UNION ALL
                SELECT IFNULL(t.domain,''), IFNULL(t.ord_nbr,''), '', DATE(t.eff_date), 0, ABS(IFNULL(t.qty_change,0))
                FROM mdp_std_inv_trans t
                WHERE t.tenant_id=@tid AND t.source_system='DOPDEMORQ_SQLSERVER'
                  AND t.src_trans_type_raw='iss-so'
                  AND t.eff_date>=DATE_SUB(CURDATE(), INTERVAL 14 DAY)
              ) u
              WHERE biz_date IS NOT NULL AND ord_nbr<>''
              GROUP BY domain, ord_nbr, ord_line, biz_date
            ) d
            WHERE ABS(d.asn_qty - d.iss_qty) > 0.0001
            ON DUPLICATE KEY UPDATE
              asn_qty=VALUES(asn_qty), inv_iss_so_qty=VALUES(inv_iss_so_qty),
              diff_qty=VALUES(diff_qty), detected_at=CURRENT_TIMESTAMP
            """,
            new SugarParameter("@tid", tenantId));
        return inserted;
    }
}