using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Transactions;
using Datory;
using GxPress.Common.Exceptions;
using GxPress.EnumConst;
using GxPress.Request.App.OftenContact;
using GxPress.Result.App.OftenContact;

namespace GxPress.Service.Implement.OftenContact
{
    public partial class OftenContactService
    {

        public async Task<Entity.Middle.Middle> CreateWechatMiddleAsync(OftenContactInRequest request, int userId, int oftenContactId)
        {
            var query = Q.NewQuery();
            query.Where(nameof(Entity.Middle.Middle.MiddleId), oftenContactId);
            query.Where(nameof(Entity.Middle.Middle.FolderType), AllTypeConst.Wechat.GetHashCode());
            query.Where(nameof(Entity.Middle.Middle.UserId), userId);
            var middleDto = await _middleRepository.GetMiddleAsync(query);
            if (middleDto == null)
            {
                //添加middle
                var middle = new Entity.Middle.Middle()
                {
                    IsAdmin = true,
                    MiddleId = oftenContactId,
                    FolderType = GxPress.EnumConst.AllTypeConst.Wechat.GetHashCode(),
                    IsDefault = false,
                    IsDelete = false,
                    IsRead = false,
                    IsTop = false,
                    UserId = userId,
                    IsUpload = false,
                    ParentId = request.IndividualGroupId,
                };
                middle.Id = await _middleRepository.InsertAsync(middle);
                middleDto = middle;
            }
            return middleDto;
        }
        public async Task<OftenContactDto> InsertAsync(OftenContactInRequest request, int userId)
        {
            var result = new OftenContactDto();
            if (string.IsNullOrEmpty(request.ContactUserId))
                throw new BusinessException("缺少必要字段");
            if (request.ChatType == 0)
                throw new BusinessException("类型必须");
            var count = await _repository.CountAsync(Q.Where(nameof(Entity.OftenContact.UserId), userId)
                .Where(nameof(Entity.OftenContact.ContactUserId), request.ContactUserId));
            if (count > 0)
            {
                var query = Q.NewQuery();
                //修改好友关系
                query.Where(nameof(Entity.OftenContact.UserId), userId);
                query.Where(nameof(Entity.OftenContact.ContactUserId), request.ContactUserId);
                var oftenContact = await _repository.GetAsync(query);
                if (oftenContact != null)
                {
                    if (request.ChatType == 1)
                    {
                        var middleDto = await CreateWechatMiddleAsync(request, userId, oftenContact.Id);
                        result.Id = middleDto != null ? middleDto.Id : 0;
                        result.IsTop = middleDto != null ? middleDto.IsTop : false;
                        //修改middle
                        query = Q.NewQuery();
                        query.Set(nameof(Entity.Middle.Middle.IsDelete), false);
                        query.Where(nameof(Entity.Middle.Middle.MiddleId), oftenContact.Id);
                        query.Where(nameof(Entity.Middle.Middle.FolderType), AllTypeConst.Wechat.GetHashCode());
                        await _middleRepository.UpdateAsync(query);
                        //修改文件夹
                        query = Q.NewQuery();
                        query.Where(nameof(Entity.Middle.Middle.MiddleId), oftenContact.Id);
                        query.Where(nameof(Entity.Middle.Middle.FolderType), AllTypeConst.Wechat.GetHashCode());
                        var middles = await _middleRepository.GetAllAsync(query);
                        foreach (var middle in middles)
                        {
                            if (middle.ParentId > 0)
                            {
                                await _middleRepository.UpdateAsync(Q.Where(nameof(Entity.Middle.Middle.Id), middle.ParentId).Set(nameof(Entity.Middle.Middle.IsDelete), false));
                            }
                        }
                        //修改聊天时间
                        query = Q.NewQuery();
                        query.Where(nameof(Entity.OftenContact.UserId), userId);
                        query.Where(nameof(Entity.OftenContact.ContactUserId), request.ContactUserId);
                        query.Set(nameof(Entity.OftenContact.IsDelete), false);
                        await _repository.UpdateAsync(query);
                        query = Q.NewQuery();
                        query.Where(nameof(Entity.OftenContact.UserId), int.Parse(request.ContactUserId));
                        query.Where(nameof(Entity.OftenContact.ContactUserId), userId);
                        oftenContact = await _repository.GetAsync(query);
                        if (oftenContact != null)
                        {
                            query = Q.NewQuery();
                            query.Set(nameof(Entity.Middle.Middle.IsDelete), false);
                            query.Where(nameof(Entity.Middle.Middle.MiddleId), oftenContact.Id);
                            query.Where(nameof(Entity.Middle.Middle.FolderType), AllTypeConst.Wechat.GetHashCode());
                            await _middleRepository.UpdateAsync(query);
                            query = Q.NewQuery();
                            query.Where(nameof(Entity.OftenContact.UserId), int.Parse(request.ContactUserId));
                            query.Where(nameof(Entity.OftenContact.ContactUserId), userId);
                            query.Set(nameof(Entity.OftenContact.IsDelete), false);
                            await _repository.UpdateAsync(query);
                            //修改文件夹
                            query = Q.NewQuery();
                            query.Where(nameof(Entity.Middle.Middle.MiddleId), oftenContact.Id);
                            query.Where(nameof(Entity.Middle.Middle.FolderType), AllTypeConst.Wechat.GetHashCode());
                            middles = await _middleRepository.GetAllAsync(query);
                            foreach (var middle in middles)
                            {
                                if (middle.ParentId > 0)
                                {
                                    await _middleRepository.UpdateAsync(Q.Where(nameof(Entity.Middle.Middle.Id), middle.ParentId).Set(nameof(Entity.Middle.Middle.IsDelete), false));
                                }
                            }
                        }
                    }
                    if (request.ChatType == 2)
                    {
                        var oftenContacts = await _repository.GetAllAsync(Q.Where(nameof(Entity.OftenContact.ContactUserId), request.ContactUserId));
                        await _repository.UpdateAsync(Q.Set(nameof(Entity.OftenContact.IsDelete), false).Where(nameof(Entity.OftenContact.ContactUserId), request.ContactUserId));
                        //修改middle
                        query = Q.NewQuery();
                        query.Set(nameof(Entity.Middle.Middle.IsDelete), false);
                        query.WhereIn(nameof(Entity.Middle.Middle.MiddleId), oftenContacts.Select(n => n.Id));
                        query.Where(nameof(Entity.Middle.Middle.FolderType), AllTypeConst.Wechat.GetHashCode());
                        await _middleRepository.UpdateAsync(query);
                        //修改文件夹
                        query = Q.NewQuery();
                        query.WhereIn(nameof(Entity.Middle.Middle.MiddleId), oftenContacts.Select(n => n.Id));
                        query.Where(nameof(Entity.Middle.Middle.FolderType), AllTypeConst.Wechat.GetHashCode());
                        var middles = await _middleRepository.GetAllAsync(query);
                        foreach (var middle in middles)
                        {
                            if (middle.ParentId > 0)
                            {
                                await _middleRepository.UpdateAsync(Q.Where(nameof(Entity.Middle.Middle.Id), middle.ParentId).Set(nameof(Entity.Middle.Middle.IsDelete), false));
                            }
                        }
                    }
                }
                return result;
            }
            try
            {
                // using (TransactionScope transactionScope = new TransactionScope())
                // {
                if (request.ChatType == 1)
                {
                    var oftenContact = new Entity.OftenContact
                    {
                        IndividualGroupId = request.IndividualGroupId,
                        ContactUserId = request.ContactUserId,
                        UserId = userId,
                        ChatType = request.ChatType,
                        IsBlack = false,
                        IsDelete = false
                    };
                    var oftenContactId = await _repository.InsertAsync(oftenContact);
                    //添加middle
                    var middle = new Entity.Middle.Middle();
                    middle.IsAdmin = true;
                    middle.MiddleId = oftenContactId;
                    middle.FolderType = GxPress.EnumConst.AllTypeConst.Wechat.GetHashCode();
                    middle.IsDefault = false;
                    middle.IsDelete = false;
                    middle.IsRead = false;
                    middle.IsTop = false;
                    middle.UserId = userId;
                    middle.IsUpload = false;
                    middle.ParentId = request.IndividualGroupId;
                    await _middleRepository.InsertAsync(middle);
                    oftenContact = new Entity.OftenContact
                    {
                        IndividualGroupId = 0,
                        ContactUserId = userId.ToString(),
                        UserId = int.Parse(request.ContactUserId),
                        ChatType = request.ChatType,
                        IsBlack = false,
                        IsDelete = false
                    };
                    oftenContactId = await _repository.InsertAsync(oftenContact);
                    //添加middle
                    middle = new Entity.Middle.Middle();
                    middle.IsAdmin = true;
                    middle.MiddleId = oftenContactId;
                    middle.FolderType = AllTypeConst.Wechat.GetHashCode();
                    middle.IsDefault = false;
                    middle.IsDelete = false;
                    middle.UserId = int.Parse(request.ContactUserId);
                    middle.IsRead = false;
                    middle.IsTop = false;
                    middle.IsUpload = false;
                    middle.ParentId = request.IndividualGroupId;
                    await _middleRepository.InsertAsync(middle);
                }
                else
                {
                    var oftenContact = new Entity.OftenContact
                    {
                        IndividualGroupId = request.IndividualGroupId,
                        ContactUserId = request.ContactUserId,
                        UserId = userId,
                        ChatType = request.ChatType,
                        IsBlack = false,
                        IsDelete = false
                    };
                    var oftenContactId = await _repository.InsertAsync(oftenContact);
                    //添加middle
                    var middle = new Entity.Middle.Middle();
                    middle.IsAdmin = true;
                    middle.MiddleId = oftenContactId;
                    middle.FolderType = AllTypeConst.Wechat.GetHashCode();
                    middle.IsDefault = false;
                    middle.IsDelete = false;
                    middle.UserId = userId;
                    middle.IsRead = false;
                    middle.IsTop = false;
                    middle.IsUpload = false;
                    middle.ParentId = request.IndividualGroupId;
                    result.Id = await _middleRepository.InsertAsync(middle);
                }
                //     transactionScope.Complete();
                // }
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
                throw;
            }

            return result;
        }

    }
}