using AutoMapper;
using Newtonsoft.Json;
using OASystem.Domain;
using OASystem.Domain.Entities.Groups;
using OASystem.Domain.ViewModels.JuHeExchangeRate;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace OASystem.Infrastructure.Repositories.Groups
{
    /// <summary>
    /// 团组流程总览表仓储
    /// </summary>
    public class ProcessOverviewRepository : BaseRepository<Grp_ProcessOverview, Grp_ProcessOverview>
    {
        private readonly IMapper _mapper;
        private readonly DelegationInfoRepository _groupRep;
        public ProcessOverviewRepository(SqlSugarClient sqlSugar, IMapper mapper, DelegationInfoRepository groupRep) : base(sqlSugar)
        {
            _mapper = mapper;
            _groupRep = groupRep;
        }

        /// <summary>
        /// 团组流程初始化
        /// </summary>
        /// <param name="request">创建流程请求参数</param>
        /// <returns>创建的流程信息</returns>
        public async Task<Result> ProcessInitAsync(int groupId,int currUserId)
        {
            //团组验证
            var groupInfo = await _sqlSugar.Queryable<Grp_DelegationInfo>().FirstAsync(g => g.Id == groupId);
            if (groupInfo == null)
            {
                return new Result { Code = 400, Msg = "团组不存在" };
            }

            // 检查是否已存在流程
            var existingProcesses = await _sqlSugar.Queryable<Grp_ProcessOverview>().Where(p => p.GroupId == groupId).ToListAsync();
            if (existingProcesses.Any())
            {
                return new Result { Code = 400, Msg = "该团组的流程已存在" };
            }

            //处理签证国家
            var visaCountries = _groupRep.GroupSplitCountry(groupInfo.VisitCountry);

            // 定义默认的流程节点
            var processs = Grp_ProcessOverview.ProcessInit(groupId,currUserId,visaCountries);

            _sqlSugar.BeginTran();

            foreach (var item in processs)
            {
                var processId = await _sqlSugar.Insertable(item).ExecuteReturnIdentityAsync();

                if (processId < 1 )
                {
                    _sqlSugar.RollbackTran();
                    return new Result { Code = 400, Msg = "团组流程进度总览表添加失败！" };
                }

                var nodes = item.Nodes.Select((nodeDto, index) => new Grp_ProcessNode
                {
                    ProcessId = processId,
                    NodeName = nodeDto.NodeName,
                    NodeOrder = nodeDto.NodeOrder,
                    OverallStatus = ProcessStatus.UnStarted,
                    //Country = nodeDto.Country,
                    IsCurrent = nodeDto.IsCurrent,
                    Remark =nodeDto.Remark
                }).ToList();

                var nodeIds = await _sqlSugar.Insertable(nodes).ExecuteCommandAsync();
                if (nodeIds < 1)
                {
                    _sqlSugar.RollbackTran();
                    return new Result { Code = 400, Msg = "团组流程进度流程表添加失败！" };
                }
            }
            _sqlSugar.CommitTran();
           return new Result { Code = 200, Msg = "添加成功！" }; ;
        }

        /// <summary>
        /// 获取团组的所有流程及流程详情
        /// </summary>
        /// <param name="request">创建流程请求参数</param>
        /// <returns>创建的流程信息</returns>
        public async Task<Result> ProcessesDetailsAsync(int groupId)
        {
            //团组验证
            var groupInfo = await _sqlSugar.Queryable<Grp_DelegationInfo>().FirstAsync(g => g.Id == groupId);
            if (groupInfo == null)
            {
                return new Result { Code = 400, Msg = "团组不存在" };
            }

            // 检查是否已存在流程
            var existingProcesses = await _sqlSugar.Queryable<Grp_ProcessOverview>().Where(p => p.GroupId == groupId).ToListAsync();
            if (!existingProcesses.Any())
            {
                return new Result { Code = 400, Msg = "该团组的流程不存在" };
            }

            var users = await _sqlSugar.Queryable<Sys_Users>().ToListAsync();

            var processData = await _sqlSugar.Queryable<Grp_ProcessOverview>()
                .Where(p => p.GroupId == groupId && p.IsDel == 0)
                .Mapper(p => p.Nodes, p => p.Nodes.First().ProcessId) 
                .ToListAsync();

            var processes = processData.Select(p => new
            {
                p.Id,
                p.GroupId,
                p.ProcessType,
                ProcessName = p.ProcessType.GetEnumDescription(),
                //p.OverallStatus,
                //StatusText = p.OverallStatus.GetDescription(),
                Nodes = p.Nodes.Select(n => {

                    //单独处理签证板块
                    var visaSubNodes = new List<VisaNode>();
                    string remark = string.Empty;
                    if (p.ProcessType == GroupProcessType.Visa)
                    {
                        visaSubNodes = JsonConvert.DeserializeObject<List<VisaNode>>(n.Remark);
                    }

                    return new
                    {
                        n.Id,
                        n.ProcessId,
                        n.NodeOrder,
                        n.NodeName,
                        n.OverallStatus,
                        StatusText = p.OverallStatus.GetEnumDescription(),
                        Operator = users.FirstOrDefault(u => u.Id == n.Operator)?.CnName ?? "-",
                        OpeateTime = n.OperationTime.HasValue ? n.OperationTime.Value.ToString("yyyy-MM-dd HH:mm:ss") : "-",
                        //节点类型为签证时使用
                        visaSubNodes
                    };
                }).OrderBy(n => n.NodeOrder).ToList()
            }).ToList();

            return new Result { Code = 200,Data = processes, Msg = "查询成功！" }; 
        }
    }
}