using FlexJobApi.Core;
using Furion.DatabaseAccessor;
using Furion.FriendlyException;
using Mapster;
using MediatR;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FlexJobApi.FlexJobServer.Application
{
    /// <summary>
    /// 任务查询处理器
    /// </summary>
    public class TaskInfoQueryHandler(
            IRepository<TaskInfo> rep,
            IRepository<DictionaryData> repDictionaryData
        ) :
        IRequestHandler<GetTaskInfoQuery, GetTaskInfoQueryResult>,
        IRequestHandler<GetOpenTaskInfosQuery, GetTaskInfosQueryResult>,
        IRequestHandler<GetTaskInfosQuery, GetTaskInfosQueryResult>,
        IRequestHandler<GetPersonalApplyTaskInfosQuery, GetPersonalApplyTaskInfosQueryResult>,
        IRequestHandler<GetPersonalHireTaskInfosQuery, GetPersonalHireTaskInfosQueryResult>,
        IRequestHandler<GetPersonalCancelTaskInfosQuery, GetPersonalCancelTaskInfosQueryResult>,
        IRequestHandler<GetSettlementTasksQuery, GetSettlementTasksQueryResult>,
        IRequestHandler<GetSettlementTaskQuery, GetSettlementTaskQueryResult>

    {
        private readonly IRepository<TaskInfo> rep = rep;
        private readonly IRepository<DictionaryData> repDictionaryData = repDictionaryData;

        /// <summary>
        /// 查询任务详情
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<GetTaskInfoQueryResult> Handle(GetTaskInfoQuery request, CancellationToken cancellationToken)
        {
            var now = DateTime.Now;
            var logier = JwtUtils.GetCurrentLogier();
            var model = await TaskInfoRepository.GetQueryable(rep)
                .Where(it => it.Id == request.Id)
                .GetDetail<TaskInfo, GetTaskInfoQueryResult>(cancellationToken);
            model.TaskCount = await rep.AsQueryable().AsNoTracking()
                .Where(it => it.EnterpriseId == model.EnterpriseId && it.ReleaseStatus == EnumTaskReleaseStatus.InProcess)
                .CountAsync();
            model.ApplyCount = await rep.Change<TaskInfoUser>().AsQueryable().AsNoTracking()
                .CountAsync(it => it.TaskInfoId == model.Id);
            if (logier != null && logier.Type == EnumUserType.Personal)
            {
                var taskUser = await rep.Change<TaskInfoUser>().AsQueryable().AsNoTracking()
                    .Include(it => it.EnterpriseEmployee)
                    .Where(it => it.TaskInfoId == model.Id && it.EnterpriseEmployee.UserId == logier.Id)
                    .Select(it => new
                    {
                        it.Id,
                        it.HireStatus,
                        it.EnterpriseEmployeeId,
                        it.EnterpriseEmployee.UserSignContractStatus
                    })
                    .FirstOrDefaultAsync();
                if (taskUser != null)
                {
                    model.EnterpriseEmployeeId = taskUser.EnterpriseEmployeeId;
                    model.HireStatus = taskUser.HireStatus;
                    model.ApplyButton = taskUser.HireStatus == EnumTaskUserHireStatus.Wait
                        ? GetTaskInfoQueryResultApplyButton.WaitHire
                        : taskUser.UserSignContractStatus == EnumTaskUserSignContractStatus.Wait
                        ? GetTaskInfoQueryResultApplyButton.WaitSignContract
                        : null;
                    model.HireButton = now < model.BeginTime
                        ? GetTaskInfoQueryResultHireButton.Wait
                        : model.BeginTime <= now && now <= model.EndTime
                        ? GetTaskInfoQueryResultHireButton.InProcess
                        : GetTaskInfoQueryResultHireButton.Completed;
                    if (model.HireButton == GetTaskInfoQueryResultHireButton.InProcess)
                    {
                        var submit = await rep.Change<TaskInfoUserSubmit>().AsQueryable().AsNoTracking()
                            .AnyAsync(it => it.TaskInfoUserId == taskUser.Id && it.CheckReceiveStatus >= EnumTaskUserSubmitCheckReceiveStatus.WaitCheckReceive);
                        if (!submit)
                        {
                            model.HireButton = GetTaskInfoQueryResultHireButton.ApplyCheckReceive;
                        }
                    }
                }
                model.IsCollected = await rep.Change<TaskUserCollect>().AsQueryable().AsNoTracking()
                    .AnyAsync(it => it.TaskInfoId == request.Id && it.UserId == logier.Id);
            }
            return model;
        }

        /// <summary>
        /// 查询开放任务分页列表
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task<GetTaskInfosQueryResult> Handle(GetOpenTaskInfosQuery request, CancellationToken cancellationToken)
        {
            return Handle(request.Adapt<GetTaskInfosQuery>(), cancellationToken);
        }

        /// <summary>
        /// 查询任务分页列表
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<GetTaskInfosQueryResult> Handle(GetTaskInfosQuery request, CancellationToken cancellationToken)
        {
            var logier = JwtUtils.GetCurrentLogier();
            var q = TaskInfoRepository.GetQueryable(rep, true, logier);
            if (request.Keywords.IsNotNull())
            {
                q = q.Where(it => it.Name.Contains(request.Keywords));
            }
            if (request.EnterpriseId.HasValue)
            {
                q = q.Where(it => it.EnterpriseId == request.EnterpriseId);
            }
            if (request.BeginTime.HasValue && request.EndTime.HasValue)
            {
                q = q.Where(it => request.BeginTime <= it.CreatedTime && it.CreatedTime <= request.EndTime);
            }
            if (request.CityCode.IsNotNull())
            {
                q = q.Where(it => it.CityCode == request.CityCode);
            }
            if (request.SettlementCycle.HasValue)
            {
                q = q.Where(it => it.SettlementCycle == request.SettlementCycle);
            }
            if (request.BenefitCodes.IsNotNull())
            {
                q = q.Where(it => it.Benefits.Any(b => request.BenefitCodes.Contains(b.BenefitCode)));
            }
            if (request.GenderLimit.HasValue)
            {
                q = q.Where(it => it.GenderLimit == request.GenderLimit);
            }
            if (logier != null && logier.Type == EnumUserType.Personal && request.IsCollected == true)
            {
                q = q.Where(it => it.TaskUserCollects.Any(c => c.UserId == logier.Id));
            }

            var count = new GetTaskInfosQueryResultObjectData
            {
                WaitAssignCount = await q.CountAsync(it => it.ReleaseStatus == EnumTaskReleaseStatus.InProcess && it.Status == EnumTaskStatus.Wait),
                CompletedAssignCount = await q.CountAsync(it => it.Status == EnumTaskStatus.Complete),
                InProcessReleaseCount = await q.CountAsync(it => it.ReleaseStatus == EnumTaskReleaseStatus.InProcess),
                StoppedReleaseCount = await q.CountAsync(it => it.ReleaseStatus == EnumTaskReleaseStatus.Stopped),
            };

            if (request.Status.HasValue)
            {
                if (request.Status == EnumTaskStatus.Wait)
                {
                    q = q.Where(it => it.ReleaseStatus == EnumTaskReleaseStatus.InProcess && it.Status == EnumTaskStatus.Wait);
                }
                else
                {
                    q = q.Where(it => it.Status == request.Status);
                }
            }
            if (request.ReleaseStatus.HasValue)
            {
                q = q.Where(it => it.ReleaseStatus == request.ReleaseStatus);
            }
            if (request.RecommendStatus.HasValue)
            {
                q = q.Where(it => it.RecommendStatus == request.RecommendStatus);
            }
            if (request.CheckReceiveStatus.HasValue)
            {
                q = q.Where(it => it.CheckReceiveStatus == request.CheckReceiveStatus);
            }
            var s = from t in q
                    select new GetTaskInfosQueryResultItem
                    {
                        Id = t.Id,
                        Name = t.Name,
                        Code = t.Code,
                        EnterpriseName = t.Enterprise.EnterpriseName,
                        UserName = t.Enterprise.Users.Where(u => u.Id == t.CreatedUserId).Select(u => u.UserName).FirstOrDefault(),
                        BillingMethod = t.BillingMethod,
                        ServiceFee = t.ServiceFee,
                        SettlementCycle = t.SettlementCycle,
                        Benefits = t.Benefits.Select(it => new GetTaskInfoQueryResultBenefit
                        {
                            BenefitCode = it.BenefitCode,
                            BenefitContent = it.Benefit.Content
                        }).ToList(),
                        GenderLimit = t.GenderLimit,
                        CredentialLimits = t.CredentialLimits.Select(it => new GetTaskInfoQueryResultCredentialLimit
                        {
                            TypeCode = it.TypeCode,
                            TypeContent = it.Type.Content
                        }).ToList(),
                        ProvinceCode = t.ProvinceCode,
                        ProvinceContent = t.Province.Content,
                        CityCode = t.CityCode,
                        CityContent = t.City.Content,
                        AddressName = t.AddressName,
                        AddressDetail = t.AddressDetail,
                        Latitude = t.Latitude,
                        Longitude = t.Longitude,
                        UserCount = t.TaskInfoUsers.Count(),
                        Status = t.Status,
                        BeginTime = t.BeginTime,
                        EndTime = t.EndTime,
                        ReleaseStatus = t.ReleaseStatus,
                        CheckReceiveStatus = t.CheckReceiveStatus,
                        CreatedTime = t.CreatedTime,
                        RecommendStatus = t.RecommendStatus,
                        RecommendTime = t.RecommendTime,
                        SettlementStatus = t.SettlementStatus,
                        HireStatus = logier != null && logier.Type == EnumUserType.Personal
                            ? t.TaskInfoUsers
                                .Where(tu => tu.EnterpriseEmployee.UserId == logier.Id)
                                .Select(tu => tu.HireStatus as EnumTaskUserHireStatus?)
                                .FirstOrDefault()
                            : null,

                    };
            var result = await request.PageModel.GetPagedListAsync<GetTaskInfosQueryResult, GetTaskInfosQueryResultItem>(s, cancellationToken);
            result.ObjectData = count;
            return result;
        }

        /// <summary>
        /// 我的报名分页列表
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<GetPersonalApplyTaskInfosQueryResult> Handle(GetPersonalApplyTaskInfosQuery request, CancellationToken cancellationToken)
        {
            var logier = JwtUtils.GetCurrentLogier();
            var q = TaskInfoRepository.GetQueryable(rep, true, logier);
            if (request.Status.HasValue)
            {
                switch (request.Status.Value)
                {
                    case GetPersonalApplyTaskInfosQueryStatus.WaitHire:
                        q = q.Where(it =>
                            it.TaskInfoUsers.Any(tu =>
                                tu.EnterpriseEmployee.UserId == logier.Id
                                && tu.HireStatus == EnumTaskUserHireStatus.Wait));
                        break;
                    case GetPersonalApplyTaskInfosQueryStatus.WaitSignContract:
                        q = q.Where(it =>
                            it.TaskInfoUsers.Any(tu =>
                                tu.EnterpriseEmployee.UserId == logier.Id
                                && tu.EnterpriseEmployee.UserSignContractStatus == EnumTaskUserSignContractStatus.Wait));
                        break;
                    default:
                        break;
                }
            }
            else
            {
                q = q.Where(it =>
                    it.TaskInfoUsers.Any(tu =>
                        tu.EnterpriseEmployee.UserId == logier.Id
                        && (tu.HireStatus == EnumTaskUserHireStatus.Wait
                        || tu.EnterpriseEmployee.UserSignContractStatus == EnumTaskUserSignContractStatus.Wait)));
            }
            var s = q.Select(it => new GetPersonalApplyTaskInfosQueryResultItem
            {
                Id = it.Id,
                Name = it.Name,
                BeginTime = it.BeginTime,
                EndTime = it.EndTime,
                BillingMethod = it.BillingMethod,
                ServiceFee = it.ServiceFee,
                SettlementCycle = it.SettlementCycle,
                Benefits = it.Benefits.Select(it => new GetTaskInfoQueryResultBenefit
                {
                    BenefitCode = it.BenefitCode,
                    BenefitContent = it.Benefit.Content
                }).ToList(),
                AddressName = it.AddressName,
                Status = it.TaskInfoUsers.Any(it =>
                    it.EnterpriseEmployee.UserId == logier.Id
                    && it.HireStatus == EnumTaskUserHireStatus.Wait)
                    ? GetPersonalApplyTaskInfosQueryStatus.WaitHire
                    : GetPersonalApplyTaskInfosQueryStatus.WaitSignContract
            });
            return await request.PageModel.GetPagedListAsync<GetPersonalApplyTaskInfosQueryResult, GetPersonalApplyTaskInfosQueryResultItem>(s, cancellationToken);
        }

        /// <summary>
        /// 我的已录用分页列表
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<GetPersonalHireTaskInfosQueryResult> Handle(GetPersonalHireTaskInfosQuery request, CancellationToken cancellationToken)
        {
            var now = DateTime.Now;
            var logier = JwtUtils.GetCurrentLogier();
            var q = TaskInfoRepository.GetQueryable(rep, true, logier).Where(it =>
                it.TaskInfoUsers.Any(tu =>
                    tu.EnterpriseEmployee.UserId == logier.Id
                    && tu.ArrangeStatus == EnumTaskUserArrangeStatus.Complete));
            if (request.Status.HasValue)
            {
                switch (request.Status.Value)
                {
                    case GetPersonalHireTaskInfosQueryStatus.Wait:
                        q = q.Where(it => now < it.BeginTime);
                        break;
                    case GetPersonalHireTaskInfosQueryStatus.InProcess:
                        q = q.Where(it => it.BeginTime <= now && now <= it.EndTime);
                        break;
                    case GetPersonalHireTaskInfosQueryStatus.Completed:
                        q = q.Where(it => it.EndTime < now);
                        break;
                    default:
                        break;
                }
            }
            var s = q.Select(it => new GetPersonalHireTaskInfosQueryResultItem
            {
                Id = it.Id,
                Name = it.Name,
                BeginTime = it.BeginTime,
                EndTime = it.EndTime,
                BillingMethod = it.BillingMethod,
                ServiceFee = it.ServiceFee,
                SettlementCycle = it.SettlementCycle,
                Benefits = it.Benefits.Select(it => new GetTaskInfoQueryResultBenefit
                {
                    BenefitCode = it.BenefitCode,
                    BenefitContent = it.Benefit.Content
                }).ToList(),
                AddressName = it.AddressName,
                Status = now < it.BeginTime
                    ? GetPersonalHireTaskInfosQueryStatus.Wait
                    : it.BeginTime <= now && now <= it.EndTime
                    ? GetPersonalHireTaskInfosQueryStatus.InProcess
                    : GetPersonalHireTaskInfosQueryStatus.Completed
            });
            return await request.PageModel.GetPagedListAsync<GetPersonalHireTaskInfosQueryResult, GetPersonalHireTaskInfosQueryResultItem>(s, cancellationToken);
        }

        /// <summary>
        /// 我的已取消分页列表
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<GetPersonalCancelTaskInfosQueryResult> Handle(GetPersonalCancelTaskInfosQuery request, CancellationToken cancellationToken)
        {
            var now = DateTime.Now;
            var logier = JwtUtils.GetCurrentLogier();
            var q = TaskInfoRepository.GetQueryable(rep, true, logier).Where(it =>
                it.TaskInfoUsers.Any(tu =>
                    tu.EnterpriseEmployee.UserId == logier.Id
                    && (tu.HireStatus == EnumTaskUserHireStatus.Refuse
                    || tu.EnterpriseEmployee.UserSignContractStatus == EnumTaskUserSignContractStatus.Refuse
                    || tu.EnterpriseEmployee.EnterpriseSignContractStatus == EnumTaskUserSignContractStatus.Refuse)));
            var s = q.Select(it => new GetPersonalCancelTaskInfosQueryResultItem
            {
                Id = it.Id,
                Name = it.Name,
                BeginTime = it.BeginTime,
                EndTime = it.EndTime,
                BillingMethod = it.BillingMethod,
                ServiceFee = it.ServiceFee,
                SettlementCycle = it.SettlementCycle,
                Benefits = it.Benefits.Select(it => new GetTaskInfoQueryResultBenefit
                {
                    BenefitCode = it.BenefitCode,
                    BenefitContent = it.Benefit.Content
                }).ToList(),
                AddressName = it.AddressName,
            });
            return await request.PageModel.GetPagedListAsync<GetPersonalCancelTaskInfosQueryResult, GetPersonalCancelTaskInfosQueryResultItem>(s, cancellationToken);
        }

        /// <summary>
        /// 查询结算任务分页列表数据
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<GetSettlementTasksQueryResult> Handle(GetSettlementTasksQuery request, CancellationToken cancellationToken)
        {
            var logier = JwtUtils.GetCurrentLogier();
            var q = TaskInfoRepository.GetQueryable(rep, true, logier)
                .Where(it => it.SettlementOrderStatus.HasValue);
            if (request.Keywords.IsNotNull())
            {
                q = q.Where(it =>
                    it.Name.Contains(request.Keywords)
                    || it.Code.Contains(request.Keywords));
            }
            if (request.SettlementOrderStatus.HasValue)
            {
                q = q.Where(it => it.SettlementOrderStatus == request.SettlementOrderStatus);
            }
            if (request.SettlementStatus.HasValue)
            {
                q = q.Where(it => it.SettlementStatus == request.SettlementStatus);
            }
            var s = q
                .Select(it=>new GetSettlementTasksQueryResultItem
                { 
                    Id = it.Id,
                    Name = it.Name,
                    Code = it.Code,
                    SettlementOrderStatus = it.SettlementOrderStatus,
                    SettlementOrderName = it.SettlementOrderName,
                    SettlementOrderTime = it.SettlementOrderTime,
                    ActualSettlementAmount = it.ActualSettlementAmount,
                    SettlementAmount = it.SettlementAmount,
                    SettlementStatus = it.SettlementStatus,
                    SettlementTime = it.SettlementTime,
                    SettlementRemark = it.SettlementRemark,
                    SettlementUserCount = it.SettlementUserCount
                });
            return await request.PageModel.GetPagedListAsync<GetSettlementTasksQueryResult, GetSettlementTasksQueryResultItem>(s, cancellationToken);
        }

        /// <summary>
        /// 查询结算单详情
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task<GetSettlementTaskQueryResult> Handle(GetSettlementTaskQuery request, CancellationToken cancellationToken)
        {
            var logier = JwtUtils.GetCurrentLogier();
            var model = TaskInfoRepository.GetQueryable(rep, true, logier)
                .Where(it => it.Id == request.Id)
                .GetDetail<TaskInfo, GetSettlementTaskQueryResult>();
            return model;
        }
    }
}