using System.Security.Cryptography;
using System.Text;
using System.Text.Json;
using Admin.NET.Plugin.AiDOP.DataPlatform.Executors;
using Admin.NET.Plugin.AiDOP.DataPlatform.Sequence;
using Admin.NET.Plugin.AiDOP.Entity.DataPlatform;
using Microsoft.Extensions.Logging;
using SqlSugar;

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

/// <summary>
/// 热回读：按在途业务键对 165 做索引 seek 窄查询，变更落地到贴源层。
/// </summary>
public sealed class MdpHotWatchService : ITransient
{
    public const string SourceCode = NbrSequenceService.DefaultSourceCode;
    private const int MaxKeysPerBatch = 500;

    private readonly ISqlSugarClient _db;
    private readonly MdpSourceScopeFactory _scopeFactory;
    private readonly MdpStagingWriter _staging;
    private readonly ILogger _logger;

    public MdpHotWatchService(
        ISqlSugarClient db,
        MdpSourceScopeFactory scopeFactory,
        MdpStagingWriter staging,
        ILoggerFactory loggerFactory)
    {
        _db = db;
        _scopeFactory = scopeFactory;
        _staging = staging;
        _logger = loggerFactory.CreateLogger(nameof(MdpHotWatchService));
    }

    /// <summary>Outbox 推送成功后登记在途关注。</summary>
    public async Task EnrollAsync(
        string bizType, string bizKey, string domain, IEnumerable<string> watchTables,
        long tenantId = 0, int pollIntervalSec = 5, CancellationToken ct = default)
    {
        bizType = (bizType ?? "").Trim();
        bizKey = (bizKey ?? "").Trim();
        domain = string.IsNullOrWhiteSpace(domain) ? "8010" : domain.Trim();
        if (string.IsNullOrWhiteSpace(bizType) || string.IsNullOrWhiteSpace(bizKey))
            return;

        if (tenantId <= 0 && string.Equals(bizType, "WORK_ORDER", StringComparison.OrdinalIgnoreCase))
            tenantId = await ResolveLocalWorkOrdTenantAsync(bizKey, domain, ct);

        var exists = await _db.Queryable<AdoMdpHotWatch>()
            .Where(x => x.BizType == bizType && x.BizKey == bizKey && x.Status == 0)
            .AnyAsync(ct);
        if (exists) return;

        var now = DateTime.Now;
        await _db.Insertable(new AdoMdpHotWatch
        {
            TenantId = tenantId,
            BizType = bizType,
            BizKey = bizKey,
            Domain = domain,
            WatchTables = JsonSerializer.Serialize(watchTables.ToArray()),
            EnrollTime = now,
            PollIntervalSec = pollIntervalSec,
            Status = 0,
            CreateTime = now,
            UpdateTime = now
        }).ExecuteCommandAsync(ct);

        _logger.LogInformation(
            "[MdpHotWatch] enrolled type={Type} key={Key} domain={Domain} tenant={Tenant}",
            bizType, bizKey, domain, tenantId);
    }

    /// <summary>
    /// Outbox 推送成功后按 action/idem 登记 WORK_ORDER 热关注。
    /// idem 约定：<c>wo|domain|workOrd|…</c> / <c>pick|domain|workOrd|…</c>
    /// </summary>
    public Task TryEnrollFromOutboxSuccessAsync(MdpOutbox item, CancellationToken ct = default)
    {
        if (item == null) return Task.CompletedTask;
        if (!string.Equals(item.TargetSourceCode, SourceCode, StringComparison.OrdinalIgnoreCase))
            return Task.CompletedTask;

        var action = (item.ActionCode ?? "").Trim().ToUpperInvariant();
        var isWo =
            action.StartsWith("WO_MES_", StringComparison.Ordinal)
            || action is "PICK_WOM_UPSERT" or "PICK_WOR_STATUS";
        if (!isWo) return Task.CompletedTask;

        if (!TryParseWoIdem(item.IdemKey, out var domain, out var workOrd))
            return Task.CompletedTask;

        return EnrollAsync(
            "WORK_ORDER",
            workOrd,
            domain,
            new[] { "WorkOrdMaster", "WorkOrdRouting", "PeriodSequenceDet" },
            item.TenantId,
            ct: ct);
    }

    /// <summary>领料单写入 165 成功后登记 PICK_BILL（及关联工单）热关注。</summary>
    public async Task EnrollPickBillAsync(
        string domain, string nbr, string? workOrd, long tenantId = 0, CancellationToken ct = default)
    {
        domain = string.IsNullOrWhiteSpace(domain) ? "8010" : domain.Trim();
        nbr = (nbr ?? "").Trim();
        if (string.IsNullOrWhiteSpace(nbr)) return;

        await EnrollAsync(
            "PICK_BILL",
            nbr,
            domain,
            new[] { "NbrMaster", "NbrDetail", "MissedPrint" },
            tenantId,
            ct: ct);

        if (!string.IsNullOrWhiteSpace(workOrd))
        {
            await EnrollAsync(
                "WORK_ORDER",
                workOrd.Trim(),
                domain,
                new[] { "WorkOrdMaster", "WorkOrdRouting", "PeriodSequenceDet" },
                tenantId,
                ct: ct);
        }
    }

    private static bool TryParseWoIdem(string? idem, out string domain, out string workOrd)
    {
        domain = "8010";
        workOrd = "";
        if (string.IsNullOrWhiteSpace(idem)) return false;
        var parts = idem.Split('|', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
        if (parts.Length < 3) return false;
        if (!parts[0].Equals("wo", StringComparison.OrdinalIgnoreCase)
            && !parts[0].Equals("pick", StringComparison.OrdinalIgnoreCase))
            return false;
        domain = string.IsNullOrWhiteSpace(parts[1]) ? "8010" : parts[1];
        workOrd = parts[2];
        return !string.IsNullOrWhiteSpace(workOrd);
    }

    /// <summary>取一批在途行并轮询 165。</summary>
    public async Task<(int polled, int changed, int terminated)> PollOnceAsync(
        int take = 100, CancellationToken ct = default)
    {
        var due = await _db.Queryable<AdoMdpHotWatch>()
            .Where(x => x.Status == 0)
            .OrderBy(x => x.LastPollTime ?? DateTime.MinValue)
            .Take(take)
            .ToListAsync(ct);

        if (due.Count == 0) return (0, 0, 0);

        MdpSource? source;
        ISqlSugarClient remote;
        try
        {
            source = await _db.Queryable<MdpSource>()
                .Where(x => x.SourceCode == SourceCode && x.Status == 1)
                .FirstAsync(ct);
            if (source == null)
            {
                _logger.LogWarning("[MdpHotWatch] 源 {Source} 未启用，跳过本轮", SourceCode);
                return (0, 0, 0);
            }
            remote = await _scopeFactory.GetScopeAsync(SourceCode, ct);
        }
        catch (Exception ex)
        {
            _logger.LogWarning(ex, "[MdpHotWatch] 无法连接 165");
            return (0, 0, 0);
        }

        var changed = 0;
        var terminated = 0;
        var now = DateTime.Now;

        foreach (var group in due.GroupBy(x => x.BizType))
        {
            ct.ThrowIfCancellationRequested();
            foreach (var watch in group.Take(MaxKeysPerBatch))
            {
                var tables = ParseTables(watch.WatchTables);
                var sb = new StringBuilder();
                foreach (var table in tables)
                {
                    var rows = await QueryByBizKeyAsync(remote, table, watch.Domain, watch.BizType, watch.BizKey, ct);
                    foreach (var row in rows)
                        sb.Append(JsonSerializer.Serialize(row));
                }

                var hash = Sha256(sb.ToString());
                watch.LastPollTime = now;
                watch.UpdateTime = now;

                if (!string.Equals(hash, watch.LastSnapshotHash, StringComparison.Ordinal))
                {
                    watch.LastSnapshotHash = hash;
                    changed++;

                    var tableRows = new Dictionary<string, List<Dictionary<string, object>>>(StringComparer.OrdinalIgnoreCase);

                    // 变更落地：按表写 stg（执行侧字段快照）
                    foreach (var table in tables)
                    {
                        var rows = await QueryByBizKeyAsync(remote, table, watch.Domain, watch.BizType, watch.BizKey, ct);
                        tableRows[table] = rows;
                        var entity = await ResolveEntityAsync(table, ct);
                        if (entity == null) continue;
                        foreach (var row in rows)
                        {
                            var dict = row.ToDictionary(
                                kv => kv.Key,
                                kv => (object?)kv.Value,
                                StringComparer.OrdinalIgnoreCase);
                            var rid = dict.TryGetValue("RecID", out var r) ? $"{r}" : watch.BizKey;
                            var raw = JsonSerializer.Serialize(dict);
                            await _staging.UpsertAsync(
                                source, entity, table, dict, raw, rid,
                                new MdpPullContext
                                {
                                    TenantId = watch.TenantId,
                                    BatchId = $"hot-{now:yyyyMMddHHmmss}",
                                    FullRefresh = false
                                });
                        }
                    }

                    // 工单执行量写回本库业务表，供看板直接读取
                    if (string.Equals(watch.BizType, "WORK_ORDER", StringComparison.OrdinalIgnoreCase))
                    {
                        tableRows.TryGetValue("WorkOrdMaster", out var masters);
                        tableRows.TryGetValue("WorkOrdRouting", out var routings);
                        tableRows.TryGetValue("PeriodSequenceDet", out var periodDets);
                        var effectiveTenantId = watch.TenantId;
                        if (effectiveTenantId <= 0)
                            effectiveTenantId = await ResolveLocalWorkOrdTenantAsync(watch.BizKey, watch.Domain, ct);
                        await ApplyWorkOrderExecutionAsync(
                            effectiveTenantId, watch.Domain, watch.BizKey, masters, routings, ct);
                        await ApplyPeriodSequenceActualAsync(
                            effectiveTenantId, watch.Domain, watch.BizKey, periodDets, routings, ct);
                    }

                    if (await ShouldTerminateAsync(remote, watch, ct))
                    {
                        watch.Status = 1;
                        watch.TerminateTime = now;
                        watch.TerminateReason = "auto";
                        terminated++;
                    }
                }

                await _db.Updateable(watch)
                    .UpdateColumns(x => new
                    {
                        x.LastPollTime, x.LastSnapshotHash, x.Status,
                        x.TerminateTime, x.TerminateReason, x.UpdateTime
                    })
                    .ExecuteCommandAsync(ct);
            }
        }

        return (due.Count, changed, terminated);
    }

    private async Task<MdpEntity?> ResolveEntityAsync(string table, CancellationToken ct)
    {
        return await _db.Queryable<MdpEntity>()
            .Where(x => x.SourceTableName == table && x.EntityCode.EndsWith("_SQLSERVER") && x.Status == 1)
            .FirstAsync(ct);
    }

    private static async Task<List<Dictionary<string, object>>> QueryByBizKeyAsync(
        ISqlSugarClient remote, string table, string domain, string bizType, string bizKey, CancellationToken ct)
    {
        // 表白名单（防注入）
        if (!System.Text.RegularExpressions.Regex.IsMatch(table, @"^[A-Za-z0-9_]+$"))
            throw new InvalidOperationException($"非法表名：{table}");

        string sql;
        SugarParameter[] pars;
        switch (table.ToUpperInvariant())
        {
            case "NBRMASTER":
                sql = "SELECT * FROM NbrMaster WHERE Domain=@d AND Nbr=@k";
                pars = new[] { new SugarParameter("@d", domain), new SugarParameter("@k", bizKey) };
                break;
            case "NBRDETAIL":
                sql = "SELECT * FROM NbrDetail WHERE Domain=@d AND Nbr=@k";
                pars = new[] { new SugarParameter("@d", domain), new SugarParameter("@k", bizKey) };
                break;
            case "WORKORDMASTER":
                sql = "SELECT * FROM WorkOrdMaster WHERE Domain=@d AND WorkOrd=@k";
                pars = new[] { new SugarParameter("@d", domain), new SugarParameter("@k", bizKey) };
                break;
            case "WORKORDROUTING":
                sql = "SELECT * FROM WorkOrdRouting WHERE Domain=@d AND WorkOrd=@k";
                pars = new[] { new SugarParameter("@d", domain), new SugarParameter("@k", bizKey) };
                break;
            case "PERIODSEQUENCEDET":
                // 工序间衔接：按工单取全部行（含 MES 报工产生的 Period=0 影子行），由调用方按工序合并
                sql = "SELECT * FROM PeriodSequenceDet WHERE Domain=@d AND WorkOrds=@k";
                pars = new[] { new SugarParameter("@d", domain), new SugarParameter("@k", bizKey) };
                break;
            case "PURORDDETAIL":
                sql = "SELECT * FROM PurOrdDetail WHERE Domain=@d AND PurOrd=@k";
                pars = new[] { new SugarParameter("@d", domain), new SugarParameter("@k", bizKey) };
                break;
            case "PURORDMASTER":
                sql = "SELECT * FROM PurOrdMaster WHERE Domain=@d AND PurOrd=@k";
                pars = new[] { new SugarParameter("@d", domain), new SugarParameter("@k", bizKey) };
                break;
            case "LINESTATUSDET":
                sql = "SELECT * FROM LineStatusDet WHERE Domain=@d AND Line=@k";
                pars = new[] { new SugarParameter("@d", domain), new SugarParameter("@k", bizKey) };
                break;
            case "MOBILETASK":
                // 堆表：按 TaskID
                sql = "SELECT * FROM MobileTask WHERE TaskID=@k";
                pars = new[] { new SugarParameter("@k", bizKey) };
                break;
            default:
                // MissedPrint 等：降级按 Domain + OrdNbr（可能扫表，见 WP8 E1）
                if (string.Equals(table, "MissedPrint", StringComparison.OrdinalIgnoreCase))
                {
                    sql = "SELECT TOP 200 * FROM MissedPrint WHERE Domain=@d AND OrdNbr=@k";
                    pars = new[] { new SugarParameter("@d", domain), new SugarParameter("@k", bizKey) };
                    break;
                }
                return new List<Dictionary<string, object>>();
        }

        var dt = await remote.Ado.GetDataTableAsync(sql, pars);
        var list = new List<Dictionary<string, object>>();
        foreach (System.Data.DataRow row in dt.Rows)
        {
            var dict = new Dictionary<string, object>(StringComparer.OrdinalIgnoreCase);
            foreach (System.Data.DataColumn col in dt.Columns)
                dict[col.ColumnName] = row[col] == DBNull.Value ? null! : row[col];
            list.Add(dict);
        }
        return list;
    }

    /// <summary>
    /// 把 165 工单执行字段回写本库（MES 权威列：Status / QtyCompleted / QtyComplete / QtyReject）。
    /// </summary>
    private async Task ApplyWorkOrderExecutionAsync(
        long tenantId,
        string domain,
        string workOrd,
        List<Dictionary<string, object>>? masters,
        List<Dictionary<string, object>>? routings,
        CancellationToken ct)
    {
        var now = DateTime.Now;
        var updatedRouting = 0;

        if (routings != null)
        {
            foreach (var row in routings)
            {
                if (!TryGetInt(row, "OP", out var op) && !TryGetInt(row, "Op", out op))
                    continue;
                var qtyComplete = GetDecimal(row, "QtyComplete");
                var qtyReject = GetDecimal(row, "QtyReject");
                var status = Trunc(GetString(row, "Status"), 1);

                updatedRouting += await _db.Ado.ExecuteCommandAsync(
                    """
                    UPDATE WorkOrdRouting
                    SET QtyComplete = @QtyComplete,
                        QtyReject = @QtyReject,
                        Status = CASE WHEN IFNULL(@Status,'') = '' THEN Status ELSE @Status END,
                        UpdateUser = 'MDP_HOT',
                        UpdateTime = @Now
                    WHERE WorkOrd = @WorkOrd
                      AND OP = @Op
                      AND IFNULL(Domain, '') = @Domain
                      AND IFNULL(tenant_id, 0) = @TenantId
                    """,
                    new SugarParameter("@QtyComplete", qtyComplete),
                    new SugarParameter("@QtyReject", qtyReject),
                    new SugarParameter("@Status", status ?? ""),
                    new SugarParameter("@Now", now),
                    new SugarParameter("@WorkOrd", workOrd),
                    new SugarParameter("@Op", op),
                    new SugarParameter("@Domain", domain),
                    new SugarParameter("@TenantId", tenantId));
            }
        }

        if (masters is { Count: > 0 })
        {
            var m = masters[0];
            var qtyCompleted = GetDecimal(m, "QtyCompleted");
            var status = Trunc(GetString(m, "Status"), 8);
            await _db.Ado.ExecuteCommandAsync(
                """
                UPDATE WorkOrdMaster
                SET QtyCompleted = @QtyCompleted,
                    Status = CASE WHEN IFNULL(@Status,'') = '' THEN Status ELSE @Status END,
                    UpdateUser = 'MDP_HOT',
                    UpdateTime = @Now
                WHERE WorkOrd = @WorkOrd
                  AND IFNULL(Domain, '') = @Domain
                  AND IFNULL(tenant_id, 0) = @TenantId
                """,
                new SugarParameter("@QtyCompleted", qtyCompleted),
                new SugarParameter("@Status", status ?? ""),
                new SugarParameter("@Now", now),
                new SugarParameter("@WorkOrd", workOrd),
                new SugarParameter("@Domain", domain),
                new SugarParameter("@TenantId", tenantId));
        }

        _logger.LogInformation(
            "[MdpHotWatch] applied WORK_ORDER execution wo={WorkOrd} domain={Domain} routingRows={Rows}",
            workOrd, domain, updatedRouting);
    }

    /// <summary>
    /// D-M01：把 165 的工序实绩按 (Domain, WorkOrds, Op) 合并后落到 ado_psd_op_actual。
    ///
    /// 为什么按工序合并：MES APP 报工会新增 Period=0/IsActive=0 的影子行，实绩可能写在影子行、
    /// 也可能写在 Period=1 计划行，且同一工序可能因重排跨多个 Line。只有工序级求和才与
    /// WorkOrdRouting.QtyComplete（MES 自己的工序累计完成数）对齐。实测 Op501：3+5=8=QtyComplete。
    ///
    /// 为什么不写 PeriodSequenceDet：本库 PSD 行会被排产整表重建（旧行置 IsActive=0），
    /// 实绩写进去会在下次全量重排时丢失。
    ///
    /// 单位保持 165 原始口径：ActualTime 秒、SetupTime 小时（列名自带单位）。
    /// </summary>
    private async Task ApplyPeriodSequenceActualAsync(
        long tenantId,
        string domain,
        string workOrd,
        List<Dictionary<string, object>>? periodDets,
        List<Dictionary<string, object>>? routings,
        CancellationToken ct)
    {
        if (periodDets is not { Count: > 0 })
            return;

        // WorkOrdRouting.QtyComplete 作为交叉校验值（仅记录，不用于覆盖）
        var routingQty = new Dictionary<int, decimal>();
        if (routings != null)
        {
            foreach (var r in routings)
            {
                if (!TryGetInt(r, "OP", out var rop) && !TryGetInt(r, "Op", out rop))
                    continue;
                routingQty[rop] = GetDecimal(r, "QtyComplete");
            }
        }

        var grouped = new Dictionary<int, PsdOpActual>();
        foreach (var row in periodDets)
        {
            if (!TryGetInt(row, "Op", out var op) && !TryGetInt(row, "OP", out op))
                continue;

            if (!grouped.TryGetValue(op, out var acc))
            {
                acc = new PsdOpActual { Op = op };
                grouped[op] = acc;
            }

            acc.CompQty += GetDecimal(row, "CompQty");
            acc.RejectQty += GetDecimal(row, "RejectQty");
            acc.SetupTimeHour += GetDecimal(row, "SetupTime");
            acc.ActualTimeSec += GetDecimal(row, "ActualTime");
            acc.SrcRowCount++;
            acc.ItemNum ??= GetString(row, "ItemNum");

            if (row.TryGetValue("UpdateTime", out var upd) && upd is DateTime dt
                && (acc.LastSrcUpdate == null || dt > acc.LastSrcUpdate))
                acc.LastSrcUpdate = dt;
        }

        var now = DateTime.Now;
        var mismatches = new List<string>();

        foreach (var acc in grouped.Values)
        {
            var rq = routingQty.TryGetValue(acc.Op, out var q) ? (decimal?)q : null;
            if (rq.HasValue && rq.Value != acc.CompQty)
                mismatches.Add($"Op{acc.Op}: psdSum={acc.CompQty} routing={rq.Value}");

            await _db.Ado.ExecuteCommandAsync(
                """
                INSERT INTO ado_psd_op_actual (
                    tenant_id, domain, work_ord, op, item_num,
                    comp_qty, reject_qty, setup_time_hour, actual_time_sec,
                    src_row_count, routing_qty, last_src_update, sync_time
                ) VALUES (
                    @TenantId, @Domain, @WorkOrd, @Op, @ItemNum,
                    @CompQty, @RejectQty, @SetupTimeHour, @ActualTimeSec,
                    @SrcRowCount, @RoutingQty, @LastSrcUpdate, @Now
                )
                ON DUPLICATE KEY UPDATE
                    item_num = VALUES(item_num),
                    comp_qty = VALUES(comp_qty),
                    reject_qty = VALUES(reject_qty),
                    setup_time_hour = VALUES(setup_time_hour),
                    actual_time_sec = VALUES(actual_time_sec),
                    src_row_count = VALUES(src_row_count),
                    routing_qty = VALUES(routing_qty),
                    last_src_update = VALUES(last_src_update),
                    sync_time = VALUES(sync_time)
                """,
                new SugarParameter("@TenantId", tenantId),
                new SugarParameter("@Domain", domain ?? ""),
                new SugarParameter("@WorkOrd", workOrd),
                new SugarParameter("@Op", acc.Op),
                new SugarParameter("@ItemNum", acc.ItemNum ?? (object)DBNull.Value),
                new SugarParameter("@CompQty", acc.CompQty),
                new SugarParameter("@RejectQty", acc.RejectQty),
                new SugarParameter("@SetupTimeHour", acc.SetupTimeHour),
                new SugarParameter("@ActualTimeSec", acc.ActualTimeSec),
                new SugarParameter("@SrcRowCount", acc.SrcRowCount),
                new SugarParameter("@RoutingQty", rq.HasValue ? rq.Value : (object)DBNull.Value),
                new SugarParameter("@LastSrcUpdate", acc.LastSrcUpdate ?? (object)DBNull.Value),
                new SugarParameter("@Now", now));
        }

        if (mismatches.Count > 0)
        {
            // 不阻断落库：差异说明 165 侧口径需人工确认，先留证
            _logger.LogWarning(
                "[MdpHotWatch] PSD 实绩与 WorkOrdRouting 不一致 wo={WorkOrd} domain={Domain} {Detail}",
                workOrd, domain, string.Join("; ", mismatches));
        }

        _logger.LogInformation(
            "[MdpHotWatch] applied PSD actual wo={WorkOrd} domain={Domain} ops={Ops} srcRows={Rows}",
            workOrd, domain, grouped.Count, periodDets.Count);
    }

    private sealed class PsdOpActual
    {
        public int Op { get; set; }
        public string? ItemNum { get; set; }
        public decimal CompQty { get; set; }
        public decimal RejectQty { get; set; }
        public decimal SetupTimeHour { get; set; }
        public decimal ActualTimeSec { get; set; }
        public int SrcRowCount { get; set; }
        public DateTime? LastSrcUpdate { get; set; }
    }

    private async Task<long> ResolveLocalWorkOrdTenantAsync(string workOrd, string domain, CancellationToken ct)
    {
        var tid = await _db.Ado.SqlQuerySingleAsync<long?>(
            """
            SELECT IFNULL(tenant_id, 0)
            FROM WorkOrdMaster
            WHERE WorkOrd = @WorkOrd AND IFNULL(Domain, '') = @Domain
            ORDER BY RecID DESC
            LIMIT 1
            """,
            new SugarParameter("@WorkOrd", workOrd),
            new SugarParameter("@Domain", domain));
        return tid ?? 0;
    }

    private static bool TryGetInt(Dictionary<string, object> row, string key, out int value)
    {
        value = 0;
        if (!row.TryGetValue(key, out var raw) || raw == null || raw is DBNull) return false;
        try
        {
            value = Convert.ToInt32(raw);
            return true;
        }
        catch
        {
            return false;
        }
    }

    private static decimal GetDecimal(Dictionary<string, object> row, string key)
    {
        if (!row.TryGetValue(key, out var raw) || raw == null || raw is DBNull) return 0m;
        try { return Convert.ToDecimal(raw); }
        catch { return 0m; }
    }

    private static string? GetString(Dictionary<string, object> row, string key)
    {
        if (!row.TryGetValue(key, out var raw) || raw == null || raw is DBNull) return null;
        return Convert.ToString(raw);
    }

    private static string? Trunc(string? s, int max) =>
        string.IsNullOrEmpty(s) ? s : (s.Length <= max ? s : s[..max]);

    private static async Task<bool> ShouldTerminateAsync(
        ISqlSugarClient remote, AdoMdpHotWatch watch, CancellationToken ct)
    {
        if (string.Equals(watch.BizType, "PICK_BILL", StringComparison.OrdinalIgnoreCase))
        {
            var status = await remote.Ado.GetScalarAsync(
                "SELECT TOP 1 Status FROM NbrMaster WHERE Domain=@d AND Nbr=@k",
                new SugarParameter("@d", watch.Domain),
                new SugarParameter("@k", watch.BizKey));
            var s = status?.ToString()?.Trim() ?? "";
            // 终态取值待 WP4 固化；临时：C/Complete/关闭 等常见值
            return s is "C" or "Complete" or "关闭" or "Y";
        }
        if (string.Equals(watch.BizType, "WORK_ORDER", StringComparison.OrdinalIgnoreCase))
        {
            var status = await remote.Ado.GetScalarAsync(
                "SELECT TOP 1 Status FROM WorkOrdMaster WHERE Domain=@d AND WorkOrd=@k",
                new SugarParameter("@d", watch.Domain),
                new SugarParameter("@k", watch.BizKey));
            return string.Equals(status?.ToString()?.Trim(), "C", StringComparison.OrdinalIgnoreCase);
        }
        // 兜底：超过 7 天强制终结
        return watch.EnrollTime < DateTime.Now.AddDays(-7);
    }

    private static List<string> ParseTables(string? json)
    {
        if (string.IsNullOrWhiteSpace(json)) return new List<string>();
        try
        {
            return JsonSerializer.Deserialize<List<string>>(json!) ?? new List<string>();
        }
        catch
        {
            return new List<string>();
        }
    }

    private static string Sha256(string s)
    {
        var bytes = SHA256.HashData(Encoding.UTF8.GetBytes(s));
        return Convert.ToHexString(bytes);
    }
}