using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using HH.WCS.Mobox3.DSZSH.Consts;
using HH.WCS.Mobox3.DSZSH.Helpers;
using HH.WCS.Mobox3.DSZSH.Models;

namespace HH.WCS.Mobox3.DSZSH.ServiceCore {
    /// <summary>
    /// 移库业务核心
    /// </summary>
    internal class ShiftCore {
        public static void CheckOrderState() {
            var db = DbHelper.GetDbClient();

            // 目前按出库的逻辑：逐个移库
            try {
                var order = db.Queryable<TN_Shift_Order>()
                    .Where(c => c.N_B_STATE == SpotStateCode.已执行待生成任务)
                    .OrderBy(c => c.T_CREATE, SqlSugar.OrderByType.Asc).First();

                if (order == null) {
                    LogHelper.Info("轮询：暂无待执行的移库单");
                    return;
                }

                if (db.Queryable<TN_Shift_Detail>()
                    .First(d => d.S_NO == order.S_NO && d.N_B_STATE == SpotStateCode.任务执行中) != null) {
                    LogHelper.Debug("轮询：上一个移库任务仍在进行中");
                    return;
                }

                var detail = db.Queryable<TN_Shift_Detail>()
                    .Where(d => d.S_NO == order.S_NO && d.N_B_STATE == SpotStateCode.已执行待生成任务)
                    .OrderBy(d => d.T_CREATE, SqlSugar.OrderByType.Asc).First();

                if (detail == null) {
                    //order.N_B_STATE = SpotStateCode.任务执行中;

                    LogHelper.Info("轮询移库：暂无待执行的任务");
                    return;
                }

                var startLocCntrRel = db.Queryable<TN_Loc_Container>()
                    .Where(c => c.S_CNTR_CODE == detail.S_CNTR_CODE)
                    .First();

                if (startLocCntrRel == null) {
                    LogHelper.Info("轮询：移库：没有找到合适的起点货位");
                    return;
                }

                var endLoc = db.Queryable<TN_Location>()
                    .Where(l => l.S_AREA_CODE == detail.S_END_AREA)
                    .Where(ExprHelper.LocIsFree)
                    .Where(ExprHelper.LocIsEmpty).First();

                if (endLoc == null) {
                    LogHelper.Info("轮询：出库：没有找到合适的终点货位");
                    return;
                }

                using (var tran = db.Ado.UseTran()) {
                    detail.N_B_STATE = SpotStateCode.任务执行中;
                    if (db.Updateable<TN_Shift_Detail>(detail).UpdateColumns(it => it.N_B_STATE).ExecuteCommand() <= 0) {
                        tran.RollbackTran();
                        LogHelper.Info($"轮询：出库：更新失败：修改明细表状态为完成");
                    }

                    if (TaskHelper.LogCreateTask(startLocCntrRel.S_LOC_CODE, startLocCntrRel.S_CNTR_CODE,
                        endLoc.S_CODE, TaskName.成品胶出库)) {
                        tran.CommitTran();
                    }
                    else {
                        tran.RollbackTran();
                    }
                }
            }
            catch (Exception ex) {
                LogHelper.InfoEx(ex);
            }
        }

        public static void UpdateTaskState(int spotStateCode) {
            var db = DbHelper.GetDbClient();

            var detail = db.Queryable<TN_Shift_Detail>()
                .First(d => d.N_B_STATE == SpotStateCode.任务执行中);

            if (detail == null) {
                LogHelper.Info("当前没有执行中的移库单明细项目");
                return;
            }

            using (var tran = db.Ado.UseTran()) {
                detail.N_B_STATE = spotStateCode;
                db.Updateable<TN_Shift_Detail>(detail).UpdateColumns(it => it.N_B_STATE).ExecuteCommand();

                if (db.Queryable<TN_Shift_Detail>().Count(d => d.S_NO == detail.S_NO && d.N_B_STATE == 2) ==
                    db.Queryable<TN_Shift_Detail>().Count(d => d.S_NO == detail.S_NO)) {

                    if (db.Updateable<TN_Shift_Order>().SetColumns(it => it.N_B_STATE == SpotStateCode.任务执行完成)
                        .Where(it => it.S_NO == detail.S_NO)
                        .ExecuteCommand() <= 0) {
                        tran.RollbackTran();
                        LogHelper.Info("修改Order状态错误");
                    }
                }

                tran.CommitTran();
            }
        }
    }
}