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

using HH.WCS.Mobox3.DSZSH.models;
using HH.WCS.Mobox3.DSZSH.util;

using Newtonsoft.Json;

using SqlSugar;

namespace HH.WCS.Mobox3.DSZSH.wms {
    /// <summary>
    /// [ 数据库事务处理 ] 帮助类
    /// </summary>
    public class DbTranHelper {
        /// <summary>
        /// 数据库事务处理 ( 创建任务 )
        /// </summary>
        /// <remarks>要求: obj != null</remarks>
        /// <param name="obj"></param>
        /// <returns></returns>
        public static (bool Success, string Message) DoDbTranTask(DbTranTaskObj obj) {
            var db = new SqlHelper<object>().GetInstance();
            try {
                using (var tran = db.Ado.UseTran()) {
                    // 存在[旧]容器关联信息:删除[旧][容器货品明细][货位容器关系],更新[货位][容器数量]
                    if (obj.Old != null) {
                        if (obj.Old.CgDetail != null && db.Deleteable(obj.Old.CgDetail).ExecuteCommand() <= 0) {
                            tran.RollbackTran();
                            return (false, $"删除[旧物料信息]失败!!数据:\n\n{JsonConvert.SerializeObject(obj.Old.CgDetail)}\n");
                        }
                        if (obj.Old.LocCntrRel != null && db.Deleteable(obj.Old.LocCntrRel).ExecuteCommand() <= 0) {
                            tran.RollbackTran();
                            return (false, $"删除[旧货位容器关系]失败!!数据:\n\n{JsonConvert.SerializeObject(obj.Old.LocCntrRel)}\n");
                        }
                        if (obj.Old.Location != null && db.Updateable(obj.Old.Location).UpdateColumns(l => new { l.N_CURRENT_NUM, l.T_MODIFY }).ExecuteCommand() <= 0) {
                            tran.RollbackTran();
                            return (false, $"更新[旧货位][当前容器数量]失败!!货位='{obj.Old.Location.S_CODE}',数量=>{obj.Old.Location.N_CURRENT_NUM}");
                        }
                    }

                    // 更新[容器表](业务需要)
                    if (obj.ContainerToUpdate != null && db.Updateable(obj.ContainerToUpdate).UpdateColumns(c => new { c.S_SPEC, c.S_SOURCE, c.T_MODIFY }).ExecuteCommand() <= 0) {
                        return (false, $"更新[容器表]失败!!数据:\n\n{JsonConvert.SerializeObject(obj.ContainerToUpdate)}\n");
                    }

                    // 更新[容器货品明细](业务需要)
                    if (obj.CgDetailToUpdate != null && db.Updateable(obj.CgDetailToUpdate).UpdateColumns(it => new { it.N_ITEM_STATE, it.S_ITEM_STATE, it.T_MODIFY }).ExecuteCommand() <= 0) {
                        tran.RollbackTran();
                        return (false, $"更新[物料明细表]失败!!物料号='{obj.CgDetailToUpdate}',物料状态=>'{obj.CgDetailToUpdate.S_ITEM_STATE}'");
                    }

                    // 存在[新][货位容器绑定关系]:插入[货位容器关系表]
                    if (obj.LocCntrRelToInsert != null && db.Insertable(obj.LocCntrRelToInsert).ExecuteCommand() <= 0) {
                        tran.RollbackTran();
                        return (false, $"插入[容器货位绑定表]失败!!数据:\n\n{JsonConvert.SerializeObject(obj.LocCntrRelToInsert)}\n");
                    }

                    // 更新[起点][终点][锁状态],创建[任务]
                    if (obj.StartLocToUpdate != null && db.Updateable(obj.StartLocToUpdate).UpdateColumns(it => new { it.N_LOCK_STATE, it.S_LOCK_STATE, it.S_LOCK_OP, it.T_MODIFY, it.N_CURRENT_NUM, }).ExecuteCommand() <= 0) {
                        tran.RollbackTran();
                        return (false, $"更新[起点货位锁状态]失败!!起点='{obj.StartLocToUpdate.S_CODE}',锁状态=>'{obj.StartLocToUpdate.S_LOCK_STATE}'");
                    }
                    if (obj.EndLocToUpdate != null && db.Updateable(obj.EndLocToUpdate).UpdateColumns(it => new { it.N_LOCK_STATE, it.S_LOCK_STATE, it.S_LOCK_OP, it.T_MODIFY, }).ExecuteCommand() <= 0) {
                        tran.RollbackTran();
                        return (false, $"更新[终点货位锁状态]失败!!终点='{obj.EndLocToUpdate.S_CODE}',锁状态=>'{obj.EndLocToUpdate.S_LOCK_STATE}'");
                    }
                    if (obj.TaskToInsert != null && db.Insertable(obj.TaskToInsert).ExecuteCommand() <= 0) {
                        tran.RollbackTran();
                        return (false, $"生成任务'{obj.TaskToInsert.S_TYPE}'失败!!任务号='{obj.TaskToInsert.S_CODE}',容器号='{obj.TaskToInsert.S_CNTR_CODE}',起点='{obj.TaskToInsert.S_START_LOC}',终点='{obj.TaskToInsert.S_END_LOC}'");
                    }

                    // 提交数据库更改
                    tran.CommitTran();
                    return (true, $"生成任务'{obj.TaskToInsert.S_TYPE}'成功!!任务号='{obj.TaskToInsert.S_CODE}',容器号='{obj.TaskToInsert.S_CNTR_CODE}',起点='{obj.TaskToInsert.S_START_LOC}',终点='{obj.TaskToInsert.S_END_LOC}'");
                }
            }
            catch (Exception) {
                throw; // 由外部方法捕获处理
            }
        }
    }

    public class DbTranTaskObj {
        public LocCntrCg Old { get; set; } = null;
        public TN_Container ContainerToUpdate { get; set; } = null;
        public TN_CG_Detail CgDetailToUpdate { get; set; } = null;
        public TN_Loc_Container LocCntrRelToInsert { get; set; } = null;
        public TN_Location StartLocToUpdate { get; set; } = null;
        public TN_Location EndLocToUpdate { get; set; } = null;
        public TN_Task TaskToInsert { get; set; } = null;
    }

}