using MES.Service.DB;
using MES.Service.Dto.webApi;
using MES.Service.Modes;
using MES.Service.util;
using SqlSugar;

namespace MES.Service.service.BasicData;

public class MesCustomerManager : Repository<MesCustomer>
{
    public bool Save(ErpCustomer customer)
    {
        var entity = GetSysDepartment(customer);

        return UseTransaction(db =>
        {
            switch (customer.Type)
            {
                case "0":
                    if (UpdateCustomerStatusBatch(db, entity, "A"))
                        return 1;
                    break;
                case "1":
                    if (UpdateCustomerStatusBatch(db, entity, "B"))
                        return 1;
                    break;
                case "3":
                    if (DeleteCustomerBatch(db, entity))
                        return 1;
                    break;
                case "2":
                case "4":
                    //先删除，后新增
                    if (InsertOrUpdateBatch(db, entity))
                        return 1;
                    break;
                default:
                    throw new ArgumentNullException(
                        $"type没有{customer.Type}这个类型的参数");
            }

            throw new NotImplementedException("操作失败");
        }) > 0;
    }

    public bool SaveList(List<ErpCustomer> customers)
    {
        //var list = customers.Select(GetSysDepartment).ToList();

        //因为U9的模式，会导致多组织的基础数据被处理成List<>,所以需要修改方法，SaveLits中应该是把单条处理出来的List数据加起来，而不是之前的方法处理。
        List<MesCustomer> mes_customers = new();
        foreach (var customer in customers)
        {
            var mesCustomerList = GetSysDepartment(customer);
            if (mesCustomerList != null)
                mes_customers.AddRange(mesCustomerList);
        }

        var groupBy = mes_customers.GroupBy(s => s.Type)
            .ToDictionary(g => g.Key, g => g.ToList());

        return UseTransaction(db =>
        {
            foreach (var customerGroup in groupBy)
                switch (customerGroup.Key)
                {
                    case "0":
                        if (!UpdateCustomerStatusBatch(db, customerGroup.Value,
                                "A"))
                            throw new NotImplementedException("启用失败");
                        break;
                    case "1":
                        if (!UpdateCustomerStatusBatch(db, customerGroup.Value,
                                "B"))
                            throw new NotImplementedException("禁用失败");
                        break;
                    case "3":
                        if (!DeleteCustomerBatch(db, customerGroup.Value))
                            throw new NotImplementedException("删除失败");
                        break;
                    case "2":
                    case "4":
                        if (!InsertOrUpdateBatch(db, customerGroup.Value))
                            throw new NotImplementedException("同步失败");
                        break;
                    default:
                        throw new ArgumentNullException(
                            $"type没有{customerGroup.Key}这个类型的参数");
                }

            return 1;
        }) > 0;
    }

    private bool UpdateCustomerStatus(SqlSugarScope db, decimal customerId,
        string status)
    {
        var result = db.Updateable<MesCustomer>()
            .SetColumns(s => s.Fforbidstatus == status)
            .Where(s => s.Id == customerId).ExecuteCommand();

        if (result > 0)
            return true;

        throw new NotImplementedException(status == "A" ? "启用失败" : "禁用失败");
    }

    private bool InsertCustomer(SqlSugarScope db, MesCustomer entity)
    {
        var insert = db.Insertable(entity).ExecuteCommand();
        if (insert > 0)
            return true;

        throw new NotImplementedException("插入失败");
    }

    private bool DeleteCustomer(SqlSugarScope db, decimal customerId)
    {
        var deleteById = db.Deleteable<MesCustomer>().In(customerId)
            .ExecuteCommand();
        if (deleteById > 0)
            return true;

        throw new NotImplementedException("删除失败");
    }

    private List<MesCustomer> GetSysDepartment(ErpCustomer customer)
    {
        var db = SqlSugarHelper.GetInstance();
        //var id = db.Insertable(insertObj).ExecuteReturnIdentity();
        //根据序列获取新的MES_ID

        List<MesCustomer> customers = new();

        foreach (var erpDetail in customer.ErpDetails)
        {
            decimal mesId = 0;
            var exists = db.Queryable<MesLinkU9>().Any(u =>
                u.U9Id == customer.Id && u.OrgId == erpDetail.FUseOrgId &&
                u.TableType == "MES_CUSTOMER");
            if (!exists)
            {
                mesId = GetSeqUtil.GetSeq("U9_MES_ID");
                var entity = new MesLinkU9
                {
                    CreateDate = DateTime.Now,
                    MesId = mesId.ToString(),
                    U9Id = customer.Id,
                    OrgId = erpDetail.FUseOrgId,
                    TableType = "MES_CUSTOMER"
                };
                var insertUser = db.Insertable(entity).ExecuteCommand();
            }
            else
            {
                mesId = Convert.ToDecimal(db.Queryable<MesLinkU9>()
                    .Where(u =>
                        u.U9Id == customer.Id &&
                        u.OrgId == erpDetail.FUseOrgId &&
                        u.TableType == "MES_CUSTOMER")
                    .Select(u => u.MesId) // 选择 MesId 字段
                    .First());
            }

            var mesCustomer = new MesCustomer
            {
                Id = mesId,
                CustNo = customer.FNumber,
                CustSname = customer.FShortName,
                CustName = customer.FName,
                Anred = customer.FContact,
                Telf1 = customer.FMobilephone,
                Fseller = customer.FSeller,
                CUSTOMER_STATE = customer.State,
                Fforbidstatus = customer.FForbidStatus,
                UseOrg = Convert.ToDecimal(erpDetail.FUseOrgId),
                Type = customer.Type
            };

            customers.Add(mesCustomer);
        }

        //customers = customer.ErpDetails.Select(ErpDetails => new MesCustomer
        //{
        //    Id = GetSeqUtil.GetSeq("U9_MES_ID"),
        //    CustNo = customer.FNumber,
        //    CustSname = customer.FShortName,
        //    CustName = customer.FName,
        //    Anred = customer.FContact,
        //    Telf1 = customer.FMobilephone,
        //    Fseller = customer.FSeller,
        //    CUSTOMER_STATE = customer.State,
        //    Fforbidstatus = customer.FForbidStatus,
        //    UseOrg = Convert.ToDecimal(ErpDetails.FUseOrgId),

        //}).ToList();

        return customers;
    }

    private bool UpdateCustomerStatusBatch(SqlSugarScope db,
        List<MesCustomer> customerList, string status)
    {
        var ids = customerList.Select(it => it.Id).ToArray();
        var result = db.Updateable<MesCustomer>()
            .SetColumns(s => s.Fforbidstatus == status)
            .Where(s => ids.Contains(s.Id)).ExecuteCommand();

        if (result > 0)
            return true;

        throw new NotImplementedException(status == "A" ? "启用失败" : "禁用失败");
    }

    private bool InsertCustomerBatch(SqlSugarScope db,
        List<MesCustomer> customerList)
    {
        var insertRange = db.Insertable(customerList).ExecuteCommand();
        if (insertRange > 0)
            return true;

        throw new NotImplementedException("插入失败");
    }

    private bool DeleteCustomerBatch(SqlSugarScope db,
        List<MesCustomer> customerList)
    {
        // 提取所有需要的 MesId 组合
        var mesIds = customerList.Select(customer => customer.Id.ToString())
            .ToList();

        // 使用这些 MesId 去查询 MesLinkU9 表，找到对应的 U9Id
        var u9Ids = db.Queryable<MesLinkU9>()
            .Where(u =>
                mesIds.Contains(u.MesId) && u.TableType == "MES_CUSTOMER")
            .Select(u => u.U9Id)
            .Distinct() // 应用 Distinct 去重
            .ToList();

        // 根据 U9Id 找到所有对应的 MesId，进行删除
        // 注意：这里假设您确实想要删除这些记录。如果不确定，请先查询以验证结果。
        var idsToDelete = db.Queryable<MesLinkU9>()
            .Where(u => u9Ids.Contains(u.U9Id) && u.TableType == "MES_CUSTOMER")
            .Select(u => u.MesId)
            .Distinct() // 应用 Distinct 去重
            .ToList();


        //以上方法可以考虑优化，将U9id找个新建字段存在MES_CUSTOMER中，就可以少一步查询了。

        var deleteByIds = db.Deleteable<MesCustomer>().In(idsToDelete)
            .ExecuteCommand();
        // if (deleteByIds > 0)
        //     return true;
        return true;
        //throw new NotImplementedException("删除失败");
    }

    /// <summary>
    /// "插入或更新的方法"调整：修改为先删除再插入。
    /// </summary>
    /// <remarks>
    /// 修改人：池南骏
    /// 修改日期：2024-12-30
    /// 修改说明：`
    /// </remarks>

    //// - 原代码：
    //private bool InsertOrUpdate(SqlSugarScope db, MesCustomer entity)
    //{
    //    var exists = db.Queryable<MesCustomer>().Any(e => e.Id == entity.Id);
    //    if (exists)
    //    {
    //        var update = db.Updateable(entity).ExecuteCommand();
    //        if (update > 0)
    //            return true;
    //    }
    //    else
    //    {
    //        var insert = db.Insertable(entity).ExecuteCommand();
    //        if (insert > 0)
    //            return true;
    //    }

    //    return false;
    //}

    /// 新代码
    private bool InsertOrUpdate(SqlSugarScope db, MesCustomer entity)
    {
        //db.Deleteable<MesCustomer>()
        //    .Where(s => s.Id == entity.Id)
        //    .ExecuteCommand();

        var insert = db.Insertable(entity).ExecuteCommand();
        return insert > 0;
    }

    private bool InsertOrUpdateBatch(SqlSugarScope db,
        List<MesCustomer> customerList)
    {
        //先删除，再新增
        if (!DeleteCustomerBatch(db, customerList))
            return false;

        foreach (var entity in customerList)
            if (!InsertOrUpdate(db, entity))
                return false;

        return true;
    }
}