using Exam.Application.Interface.Exam;
using Exam.ExamManages;
using Exam.Infrastructure.Data.Entity;
using Exam.Infrastructure.Data.Extensions;
using Exam.Infrastructure.Enums;
using Exam.Infrastructure.Extensions;
using Exam.Infrastructure.Web.Extensions;
using Exam.Infrastructure.Web.Utilities;
using Exam.Insfrastructure.Service.Service;
using Exam.Questions;
using Exam.Repository.Sqlsugar.Repositories;
using Exam.Share.ViewResponses.Exam;
using Hotline.Application.Exam.QueryExtensions.ExamManages;
using Hotline.Repository.SqlSugar;
using Hotline.Repository.SqlSugar.DataPermissions;
using Hotline.Repository.SqlSugar.Exam.Interfaces.ExamManages;
using Hotline.Repository.SqlSugar.Exam.Interfaces.Questions;
using Hotline.Repository.SqlSugar.Extensions;
using Hotline.Share.Dtos.TestPapers;
using Hotline.Share.Requests.Exam;
using Hotline.Share.Tools;
using Hotline.Share.ViewResponses.Exam;
using JiebaNet.Segmenter.Common;
using MapsterMapper;
using SqlSugar;
using XF.Domain.Dependency;

namespace Hotline.Application.Exam.Service.ExamManages
{
    public class ExtractRuleService : ApiService<ExtractRule, ExtractRuleDto, HotlineDbContext>,IExtractRuleService, IScopeDependency
    {
        private readonly IExtractRuleRepository _repository;
        private readonly ITagQuestionRepository _tagQuestionRepository;
        private readonly IRuleTagRepository _ruleTagRepository;
        private readonly IDataPermissionFilterBuilder _dataPermissionFilterBuilder;
        private readonly IServiceProvider _serviceProvider;
        private readonly IMapper _mapper;
        public ExtractRuleService(IExtractRuleRepository repository,
            ITagQuestionRepository tagQuestionRepository,
            IRuleTagRepository ruleTagRepository,
             IDataPermissionFilterBuilder dataPermissionFilterBuilder, IServiceProvider serviceProvider,
            IMapper mapper) : base(repository, mapper)
        {
            _repository = repository;
            _tagQuestionRepository = tagQuestionRepository;
            _ruleTagRepository = ruleTagRepository;
            _dataPermissionFilterBuilder = dataPermissionFilterBuilder;
            _serviceProvider = serviceProvider;
            _mapper = mapper;
        }

        #region public method
        /// <summary>
        /// 
        /// </summary>
        /// <param name="entityQueryRequest"></param>
        /// <returns></returns>
        public async Task<ExtractRuleDto> GetAsync(EntityQueryRequest entityQueryRequest)
        {
            var entity = await _repository.GetAsync(entityQueryRequest.Id);

            var extractRuleDto = _mapper.Map<ExtractRuleDto>(entity);

            if (extractRuleDto != null)
            {
                extractRuleDto.RuleTagDtos = await GetRuleTagDtos(entityQueryRequest);

                extractRuleDto.TagQuestionDtos = await GetTagQuestions(entityQueryRequest);
            }


            return extractRuleDto;
        }

        public async Task<(int, List<ExtractRuleViewResponse>)> GetListAsync(ExtractRulePagedRequest queryRequest)
        {
            ISugarQueryable<ExtractRuleViewResponse> queryable = QueryResult(queryRequest);

            var result = await queryable.ToListAsync();

            var total = await queryable.CountAsync();

            return (total, result);
        }

        public async Task<PageViewResponse<ExtractRuleViewResponse>> GetPagedListAsync(ExtractRulePagedRequest queryRequest)
        {
            ISugarQueryable<ExtractRuleViewResponse> queryable = QueryResult(queryRequest);

            var list = await queryable.ToPageListAsync(queryRequest.PageIndex, queryRequest.PageSize);
            var total = await queryable.CountAsync();

            var result = new ExtractRulePageViewResponse
            {
                Items = list,
                Pagination = new Pagination(queryRequest.PageIndex, queryRequest.PageSize, total)
            };

            return result;
        }

        /// <summary>
        /// 新增抽题规则
        /// </summary>
        /// <param name="actionRequest"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public override async Task AddAsync(ExtractRuleDto actionRequest, CancellationToken cancellationToken)
        {
            await base.AddAsync(actionRequest, cancellationToken);

            await AddRuleTags(actionRequest,cancellationToken);

            await AddTagQuestions(actionRequest, cancellationToken);
        }

        /// <summary>
        /// 修改抽题规则
        /// </summary>
        /// <param name="actionRequest"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public override async Task UpdateAsync(ExtractRuleDto actionRequest, CancellationToken cancellationToken)
        {
            await base.UpdateAsync(actionRequest, cancellationToken);

            await ModifyRuleTags(actionRequest, cancellationToken);

            await ModifyTagQuestions(actionRequest, cancellationToken);
        }

        /// <summary>
        /// 删除抽题规则
        /// </summary>
        /// <param name="entityQueryRequest"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public override async Task DeleteAsync(EntityQueryRequest entityQueryRequest, CancellationToken cancellationToken)
        {
            await base.DeleteAsync(entityQueryRequest, cancellationToken);

            var tempEntityQueryRequest = ExpressionableUtility.CreateExpression<TagQuestion>()
                .AndIF(entityQueryRequest.Id.IsNotNullOrEmpty(), x => x.RuleId == entityQueryRequest.Id)
                .AndIF(entityQueryRequest.Ids.IsNotNull(), x => entityQueryRequest.Ids.Contains(x.RuleId)).ToEntityQueryRequest<TagQuestion>();

            await DeleteTagQuestions(tempEntityQueryRequest, cancellationToken);

            tempEntityQueryRequest = ExpressionableUtility.CreateExpression<RuleTag>()
                .AndIF(entityQueryRequest.Id.IsNotNullOrEmpty(), x => x.RuleId == entityQueryRequest.Id)
                .AndIF(entityQueryRequest.Ids.IsNotNull(), x => entityQueryRequest.Ids.Contains(x.RuleId)).ToEntityQueryRequest<RuleTag>();


            await DeleteRuleTags(tempEntityQueryRequest, cancellationToken);
        }

        /// <summary>
        /// 获取标题试题数
        /// </summary>
        /// <param name="tagQuestionRequest"></param>
        /// <returns></returns>
        public async Task<List<TagQuestionViewResponse>> GetTagQuestionCount(TagQuestionRequest tagQuestionRequest)
        {
            if (tagQuestionRequest.TagIds.IsNullOrEmpty()) return new List<TagQuestionViewResponse>();

            var expression = tagQuestionRequest.GetExpression();
            var questionTagTable = new ExamRepository<QuestionTag>(_repository.UOW, _dataPermissionFilterBuilder, _serviceProvider).Queryable().Where(expression);
            var questionTable = new ExamRepository<Question>(_repository.UOW, _dataPermissionFilterBuilder, _serviceProvider).Queryable();

            var queryable = questionTagTable.LeftJoin(questionTable, (t, q) => t.QuestionId == q.Id)
                .GroupBy((t,q)=> new { t.TagId, q.QuestionType }).Select((t, q) => new TagQuestionViewResponse
            {
                TagId = t.TagId,
                QuestionType = q.QuestionType,
                TotalCount = SqlFunc.AggregateCount(new
                {
                    TagId = t.TagId,
                    QuestionType = q.QuestionType,
                })
            });

            return await queryable.ToListAsync();
        }
        #endregion

        #region private method
        /// <summary>
        /// 获取查询结果
        /// </summary>
        /// <param name="queryRequest"></param>
        /// <returns></returns>
        private ISugarQueryable<ExtractRuleViewResponse> QueryResult(ExtractRulePagedRequest queryRequest)
        {
            var expression = queryRequest.GetExpression();
            var query = _repository.Queryable().Where(expression);
            var querable = query.OrderBy(o => o.SortIndex).Select(m => new ExtractRuleViewResponse
            {
                Name = m.Name,
                Id = m.Id,
                Status = m.Status,
                Code = m.Code,
                SortIndex = m.SortIndex,
                Remark = m.Remark
            });
            return querable;
        }

        /// <summary>
        /// 新增标签试题
        /// </summary>
        /// <param name="actionRequest"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        private async Task AddTagQuestions(ExtractRuleDto actionRequest, CancellationToken cancellationToken)
        {
            if (actionRequest.TagQuestionDtos == null) return;

            var tagQuestionDtos = actionRequest.TagQuestionDtos.Where(x => x.OperationStatus == OperationStatus.Add).ToList();

            var tagQuestions = _mapper.Map<List<TagQuestion>>(tagQuestionDtos);

            tagQuestionDtos.InitRequest(actionRequest);

            tagQuestions.ForEach(x => x.RuleId = actionRequest.Id);

            tagQuestions.ToInsert(tagQuestionDtos);

            await _tagQuestionRepository.AddWithValidateAsync(tagQuestions, cancellationToken);
        }

        /// <summary>
        /// 新增规则标签
        /// </summary>
        /// <param name="actionRequest"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        private async Task AddRuleTags(ExtractRuleDto actionRequest, CancellationToken cancellationToken)
        {
            if (actionRequest.RuleTagDtos == null) return;

            var ruleTagDtos = actionRequest.RuleTagDtos.Where(x => x.OperationStatus == OperationStatus.Add).ToList();

            var ruleTags = _mapper.Map<List<RuleTag>>(ruleTagDtos);

            ruleTagDtos.InitRequest(actionRequest);

            ruleTags.ForEach(x => x.RuleId = actionRequest.Id);

            ruleTags.ToInsert(ruleTagDtos);

            await _ruleTagRepository.AddWithValidateAsync(ruleTags, cancellationToken);

        }

        /// <summary>
        /// 修改标签试题数
        /// </summary>
        /// <param name="actionRequest"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        /// <exception cref="NotImplementedException"></exception>
        private async Task ModifyTagQuestions(ExtractRuleDto actionRequest, CancellationToken cancellationToken)
        {
            if (actionRequest.TagQuestionDtos == null) return;

            await AddTagQuestions(actionRequest, cancellationToken);

            await UpdateTagQuestions(actionRequest ,cancellationToken);

            var ruleTagDtos = actionRequest.TagQuestionDtos.Where(x => x.OperationStatus == OperationStatus.Delete).ToList();
            var ids = ruleTagDtos.Select(x => x.Id).ToList();
            var entityQueyRequest = ExpressionableUtility.CreateExpression<TagQuestion>()
                .AndIF(ids.IsNotNull(), x => ids.Contains(x.Id)).ToEntityQueryRequest<TagQuestion>();

            await DeleteTagQuestions(entityQueyRequest, cancellationToken);
        }

        /// <summary>
        /// 修改标签试题数
        /// </summary>
        /// <param name="actionRequest"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        /// <exception cref="NotImplementedException"></exception>
        private async Task UpdateTagQuestions(ExtractRuleDto actionRequest, CancellationToken cancellationToken)
        {
            if (actionRequest.TagQuestionDtos == null) return;

            var tagQuestionDtos = actionRequest.TagQuestionDtos.Where(x => x.OperationStatus == OperationStatus.Update).ToList();
            var ids = tagQuestionDtos.Select(x => x.Id).ToList();
            var tagQuestions = await _tagQuestionRepository.Queryable().Where(x => ids.Contains(x.Id)).ToListAsync();

            var entitys = new List<TagQuestion>();
            tagQuestionDtos.ForEach(x =>
            {
                var entity = tagQuestions.FirstOrDefault(x => x.Id == x.Id);
                entity = _mapper.Map(x, entity);
                entity.RuleId = actionRequest.Id;
                entitys.Add(entity);
            });
            tagQuestionDtos.InitRequest(actionRequest);

            entitys.ToUpdate(tagQuestionDtos);

            await _tagQuestionRepository.UpdateWithValidateAsync(entitys, cancellationToken);
        }

        /// <summary>
        /// 修改规则标签
        /// </summary>
        /// <param name="actionRequest"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        /// <exception cref="NotImplementedException"></exception>
        private async Task ModifyRuleTags(ExtractRuleDto actionRequest, CancellationToken cancellationToken)
        {
            if (actionRequest.RuleTagDtos == null) return;

            await AddRuleTags(actionRequest, cancellationToken);

            await UpdateRuleTags(actionRequest, cancellationToken);

            var ruleTagDtos = actionRequest.RuleTagDtos.Where(x => x.OperationStatus == OperationStatus.Delete).ToList();
            var ids = ruleTagDtos.Select(x => x.Id).ToList();
            var entityQueyRequest = ExpressionableUtility.CreateExpression<RuleTag>()
                .AndIF(ids.IsNotNull(), x => ids.Contains(x.Id)).ToEntityQueryRequest<RuleTag>();

            await DeleteRuleTags(entityQueyRequest, cancellationToken);
        }

        private async Task UpdateRuleTags(ExtractRuleDto actionRequest, CancellationToken cancellationToken)
        {
            if (actionRequest.RuleTagDtos == null) return;

            var ruleTagDtos = actionRequest.RuleTagDtos.Where(x => x.OperationStatus == OperationStatus.Update).ToList();
            var ids = ruleTagDtos.Select(x => x.Id).ToList();
            var ruleTags = await _ruleTagRepository.Queryable().Where(x=>ids.Contains(x.Id)).ToListAsync();

            var entitys = new List<RuleTag>();
            ruleTagDtos.ForEach(x =>
            {
                var entity = ruleTags.FirstOrDefault(x=>x.Id == x.Id);
                entity = _mapper.Map(x, entity);
                entity.RuleId = actionRequest.Id;
                entitys.Add(entity);
            });
            ruleTagDtos.InitRequest(actionRequest);

            entitys.ToUpdate(ruleTagDtos);

            await _ruleTagRepository.UpdateWithValidateAsync(entitys,cancellationToken);

        }


        /// <summary>
        /// 删除规则标签
        /// </summary>
        /// <param name="tempEntityQueryRequest"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        private async Task DeleteRuleTags(EntityQueryRequest tempEntityQueryRequest, CancellationToken cancellationToken)
        {
            await _ruleTagRepository.DeleteWithValidateAsync(tempEntityQueryRequest, cancellationToken);
        }

        /// <summary>
        /// 删除标签试题数
        /// </summary>
        /// <param name="tempEntityQueryRequest"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        private async Task DeleteTagQuestions(EntityQueryRequest tempEntityQueryRequest, CancellationToken cancellationToken)
        {
            await _tagQuestionRepository.DeleteWithValidateAsync(tempEntityQueryRequest, cancellationToken);
        }

        /// <summary>
        /// 获取规则标签
        /// </summary>
        /// <param name="entityQueryRequest"></param>
        /// <returns></returns>
        /// <exception cref="NotImplementedException"></exception>
        private async Task<List<RuleTagDto>> GetRuleTagDtos(EntityQueryRequest entityQueryRequest)
        {
            var ruleTagTable = _ruleTagRepository.Queryable().Where(x=>x.RuleId == entityQueryRequest.Id);

            var examTagTable = new ExamRepository<ExamTag>(_repository.UOW, _dataPermissionFilterBuilder, _serviceProvider).Queryable();


            var queryable = ruleTagTable.LeftJoin(examTagTable, (r, e) => r.TagId == e.Id).Select((r, e) => new RuleTagDto
            {
                Id = r.Id,
                TagId = r.TagId,
                Tag = e.Name
            });

            return await queryable.ToListAsync();

        }

        /// <summary>
        /// 获取标签试题数
        /// </summary>
        /// <param name="entityQueryRequest"></param>
        /// <returns></returns>
        /// <exception cref="NotImplementedException"></exception>
        private async Task<List<TagQuestionDto>> GetTagQuestions(EntityQueryRequest entityQueryRequest)
        {
            var tagQuestionTable = _tagQuestionRepository.Queryable().Where(x => x.RuleId == entityQueryRequest.Id);

            var examTagTable = new ExamRepository<ExamTag>(_repository.UOW, _dataPermissionFilterBuilder, _serviceProvider).Queryable();


            var tagQuestionDtos = tagQuestionTable.LeftJoin(examTagTable, (t, e) => t.TagId == e.Id).Select((t,e)=>new TagQuestionDto
            {
                Id = t.Id,
                TagId =t.TagId,
                QuestionType = t.QuestionType,
                Count = t.Count,
                Tag = e.Name
            });

            return await tagQuestionDtos.ToListAsync();
        }
        #endregion
    }
}