using Aliyun.OSS;
using DOAN.Model;
using DOAN.Model.Business;
using DOAN.Model.Dto;
using DOAN.Model.MES.process;
using DOAN.Repository;
using DOAN.Service.Business.IBusinessService;
using Infrastructure.Attribute;
using Infrastructure.Extensions;
using NPOI.SS.Formula.Functions;
using NPOI.XSSF.Streaming.Values;
using SqlSugar;
using System;
using System.Linq;

namespace DOAN.Service.Business
{
    /// <summary>
    /// Service业务层处理
    /// </summary>
    [AppService(ServiceType = typeof(IProcessmodelWorkStepService), ServiceLifetime = LifeTime.Transient)]
    public class ProcessmodelWorkStepService : BaseService<ProcessmodelWorkStep>, IProcessmodelWorkStepService
    {
        /// <summary>
        /// 查询列表
        /// </summary>
        /// <param name="parm"></param>
        /// <returns></returns>
        public PagedInfo<ProcessmodeWorkStepDto> GetList(ProcessmodelWorkStepQueryDto parm)
        {
            var predicate = Expressionable.Create<ProcessmodelWorkStep>()
                                          .AndIF(!string.IsNullOrEmpty(parm.StepCode), p => parm.StepCode.Contains(p.StepCode))
                                          .AndIF(!string.IsNullOrEmpty(parm.StepName), p => parm.StepName.Contains(p.StepName));

            var response = Queryable()
                .Where(predicate.ToExpression())
                .GroupBy(p => p.StepCode)
                .ToPage<ProcessmodelWorkStep, ProcessmodeWorkStepDto>(parm);

            return response;
        }


        /// <summary>
        /// 获取详情
        /// </summary>
        /// <param name="Id"></param>
        /// <returns></returns>
        public ProcessmodelWorkStep GetInfo(long Id)
        {
            var response = Queryable()
                .Where(x => x.Id == Id)
                .First();

            return response;
        }

        /// <summary>
        /// 添加
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public ProcessmodelWorkStep AddProcessmodelWorkStep(ProcessmodelWorkStep model)
        {
            return Context.Insertable(model).ExecuteReturnEntity();
        }

        /// <summary>
        /// 修改
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public int UpdateProcessmodelWorkStep(ProcessmodelWorkStep model)
        {
            //var response = Update(w => w.Id == model.Id, it => new ProcessmodelOperationStep()
            //{
            //    OperationStepCode = model.OperationStepCode,
            //    OperationStepName = model.OperationStepName,
            //    OperationCode = model.OperationCode,
            //    Description = model.Description,
            //    IsActive = model.IsActive,
            //    UpdateTime = model.UpdateTime,
            //    UpdateBy = model.UpdateBy,
            //    Remark = model.Remark,
            //});
            //return response;
            return Update(model, true);
        }

        public List<UniqueValueQueryDto> GetUniqueValueList(string stepCode)
        {
            bool stepCodeExists = Context.Queryable<ProcessmodelWorkStep>()
                                         .Any(p => p.StepCode == stepCode);

            if (!stepCodeExists)
            {
                return new List<UniqueValueQueryDto>();
            }

            List<string> uniqueValues = Context.Queryable<ProcessmodelWorkStep>()
                                       .Where(p => p.StepCode == stepCode)
                                       .Select(p => p.UniqueValue) 
                                       .Distinct() 
                                       .Where(uv => !string.IsNullOrEmpty(uv)) 
                                       .ToList();

            var result = Context.Queryable<ProcessmodelDictionary>()
                            .Where(d => uniqueValues.Contains(d.UniqueValue)) // 批量匹配，性能优于循环查询
                            .Select(d => new UniqueValueQueryDto
                            {
                                Value = d.UniqueValue, 
                                Name = d.Description  
                            })
                            .ToList();

            return result;
        }

        /// <summary>
        /// 新增设备
        /// </summary>
        /// <param name="parm"></param>
        /// <returns></returns>
        /// <exception cref="ArgumentException"></exception>
        /// <exception cref="Exception"></exception>
        public int AddUniqueValue(UniqueQueryDto parm)
        {
            // 1. 校验入参
            if (string.IsNullOrEmpty(parm.ProcessCode) || string.IsNullOrEmpty(parm.StepCode) || string.IsNullOrEmpty(parm.Description))
            {
                throw new ArgumentException("ProcessCode、StepCode、Description 不能为空");
            }

            // 2. 查询字典表中是否存在匹配的 Description
            var dictionary = Context.Queryable<ProcessmodelDictionary>()
                .Where(d => d.Description == parm.Description)
                .First();

            string uniqueValue;
            if (dictionary != null)
            {
                // 字典表中存在匹配的 Description，使用其 UniqueValue
                uniqueValue = dictionary.UniqueValue;
            }
            else
            {
                // 字典表中不存在，生成新的唯一 UniqueValue
                uniqueValue = GenerateUniqueValue();
            }

            // 3. 查询工步基础信息
            var workStep = Context.Queryable<ProcessmodelWorkStep>()
                .Where(x => x.StepCode == parm.StepCode && x.ProcessCode == parm.ProcessCode)
                .First();

            if (workStep == null)
            {
                throw new Exception("未找到对应的工步信息");
            }

            // 4. 插入新的工步记录
            var newWorkStep = new ProcessmodelWorkStep
            {
                StepCode = workStep.StepCode,
                StepName = workStep.StepName,
                ProcessCode = workStep.ProcessCode,
                Description = workStep.Description,
                IsActive = workStep.IsActive,
                UniqueValue = uniqueValue,
                CreateTime = DateTime.Now
            };

            return Context.Insertable(newWorkStep).ExecuteCommand();
        }

        /// <summary>
        /// 生成唯一的 UniqueValue
        /// </summary>
        /// <returns>唯一的 UniqueValue</returns>
        private string GenerateUniqueValue()
        {
            // 生成格式为 "UV" + 时间戳 + 随机数 的唯一值
            var timestamp = DateTime.Now.ToString("yyyyMMddHHmmssfff");
            var random = new Random().Next(1000, 9999);
            return $"UV{timestamp}{random}";

            // 也可以根据业务规则生成，例如结合 ProcessCode 和 StepCode
            // return $"{parm.ProcessCode}-{parm.StepCode}-{Guid.NewGuid().ToString("N").Substring(0, 8)}";
        }

        ///// <summary>
        ///// 删除设备
        ///// </summary>
        ///// <param name="id"></param>
        ///// <returns></returns>
        ///// <exception cref="NotImplementedException"></exception>
        //public int DeleteUniqueValue(long id)
        //{
            
        //}
    }
}