using FlexJobApi.Core;
using Furion.DatabaseAccessor;
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.UserServer.Application
{
    /// <summary>
    /// 灵工查询处理器
    /// </summary>
    public class EnterpriseEmployeeQueryHandler(
            IRepository<EnterpriseEmployee> rep
        ) :
        IRequestHandler<GetEnterpriseEmployeesQuery, GetEnterpriseEmployeesQueryResult>,
        IRequestHandler<GetEnterpriseEmployeeQuery, GetEnterpriseEmployeeQueryResult>,
        IRequestHandler<GetPersonalUserElectronSignsQuery, GetPersonalUserElectronSignsQueryResult>,
        IRequestHandler<GetPersonalUserElectronSignQuery, GetPersonalUserElectronSignQueryResult>
    {
        private readonly IRepository<EnterpriseEmployee> rep = rep;

        /// <summary>
        /// 查询灵工分页列表数据
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<GetEnterpriseEmployeesQueryResult> Handle(GetEnterpriseEmployeesQuery request, CancellationToken cancellationToken)
        {
            var logier = JwtUtils.GetCurrentLogier();
            var q = rep.AsQueryable().AsNoTracking()
                .OrderBy(it => it.CreatedTime)
                .Where(it => it.EnterpriseId == logier.EnterpriseId);
            if (request.Keywords.IsNotNull())
            {
                q = q.Where(it =>
                    it.Name.Contains(request.Keywords)
                    || it.ContactPhoneNumber.Contains(request.Keywords)
                    || it.Identity.Contains(request.Keywords));
            }
            if (request.CreatedTimeStart.HasValue && request.CreatedTimeEnd.HasValue)
            {
                q = q.Where(it =>
                    it.CreatedTime >= request.CreatedTimeStart.Value
                    && it.CreatedTime <= request.CreatedTimeEnd.Value);
            }
            if (request.SignContractTimeStart.HasValue && request.SignContractTimeEnd.HasValue)
            {
                q = q.Where(it =>
                    it.UserSignContractTime >= request.SignContractTimeStart.Value
                    && it.UserSignContractTime <= request.SignContractTimeEnd.Value
                    || it.EnterpriseSignContractTime >= request.SignContractTimeStart.Value
                    && it.EnterpriseSignContractTime <= request.SignContractTimeEnd.Value);
            }
            if (request.HireStatus.HasValue)
            {
                q = q.Where(it => it.TaskInfoUsers.Any(tu => tu.HireStatus == request.HireStatus));
            }
            if (request.IsReal.HasValue)
            {
                q = q.Where(it => (it.UserId.HasValue && it.User.IsReal) == request.IsReal.Value);
            }
            if (request.UserSignContractStatus.HasValue)
            {
                q = q.Where(it => it.UserSignContractStatus == request.UserSignContractStatus);
            }
            if (request.EnterpriseSignContractStatus.HasValue)
            {
                q = q.Where(it => it.EnterpriseSignContractStatus == request.EnterpriseSignContractStatus);
            }
            var s = q.Select(it => new GetEnterpriseEmployeesQueryResultItem
            {
                Id = it.Id,
                Avatar = it.User.Avatar,
                Name = it.Name,
                Identity = it.Identity,
                Gender = it.Gender,
                Age = it.Age,
                ContactPhoneNumber = it.ContactPhoneNumber,
                UserIsReal = it.User.IsReal == true,
                RealMethod = it.User.RealMethod,
                PersonalIdentityCode = it.User.PersonalIdentityCode,
                PersonalIdentityContent = it.User.PersonalIdentity.Content,
                EducationalBackgroundCode = it.User.EducationalBackgroundCode,
                EducationalBackgroundContent = it.User.EducationalBackground.Content,
                TaskCount = it.User.EnterpriseEmployees.SelectMany(ee => ee.TaskInfoUsers).Count(tu => tu.HireStatus == EnumTaskUserHireStatus.Pass),
                WorkSeniority = it.User.WorkSeniority,
                WorkExperience = it.User.WorkExperience,
                HireStatus = it.TaskInfoUsers.Any(tu => tu.HireStatus == EnumTaskUserHireStatus.Pass)
                    ? EnumTaskUserHireStatus.Pass
                    : it.TaskInfoUsers.Any(tu => tu.HireStatus == EnumTaskUserHireStatus.Refuse)
                    ? EnumTaskUserHireStatus.Refuse
                    : EnumTaskUserHireStatus.Wait,
                UserSignContractStatus = it.UserSignContractStatus,
                HireTime = it.TaskInfoUsers
                    .OrderBy(tu => tu.HireTime)
                    .Where(tu => tu.HireStatus == EnumTaskUserHireStatus.Pass && tu.HireTime.HasValue)
                    .Select(tu => tu.HireTime)
                    .FirstOrDefault(),
                UserRealTime = it.User.RealTime,
                UserSignContractTime = it.UserSignContractTime,
                EnterpriseSignContractStatus = it.EnterpriseSignContractStatus,
                EnterpriseSignContractTime = it.EnterpriseSignContractTime
            });
            return await request.PageModel.GetPagedListAsync<GetEnterpriseEmployeesQueryResult, GetEnterpriseEmployeesQueryResultItem>(s, cancellationToken);
        }

        /// <summary>
        /// 查询灵工详情
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<GetEnterpriseEmployeeQueryResult> Handle(GetEnterpriseEmployeeQuery request, CancellationToken cancellationToken)
        {
            var logier = JwtUtils.GetCurrentLogier();
            var model = await rep.AsQueryable().AsNoTracking()
                .Where(it => it.Id == request.Id)
                .GetDetail<EnterpriseEmployee, GetEnterpriseEmployeeQueryResult>(cancellationToken);
            if (request.TaskInfoId.HasValue)
            {
                model.ApplyTime = await rep.Change<TaskInfoUser>().AsQueryable().AsNoTracking()
                    .Where(it => it.TaskInfoId == request.TaskInfoId && it.EnterpriseEmployeeId == request.Id)
                    .Select(it => it.CreatedTime as DateTimeOffset?)
                    .FirstOrDefaultAsync(cancellationToken);
            }
            else if (logier.Type == EnumUserType.Enterprise)
            {
                model.ApplyTime = await rep.Change<TaskInfoUser>().AsQueryable().AsNoTracking()
                    .OrderBy(it => it.CreatedTime)
                    .Where(it => it.TaskInfo.EnterpriseId == logier.EnterpriseId && it.EnterpriseEmployeeId == request.Id)
                    .Select(it => it.CreatedTime as DateTimeOffset?)
                    .FirstOrDefaultAsync(cancellationToken);
            }

            return model;
        }

        /// <summary>
        /// 查询个人用户签约列表
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<GetPersonalUserElectronSignsQueryResult> Handle(GetPersonalUserElectronSignsQuery request, CancellationToken cancellationToken)
        {
            var logier = JwtUtils.GetCurrentLogier();
            var q = rep.AsQueryable().AsNoTracking()
                .Where(it => it.UserId == logier.Id);
            if (request.UserSignContractStatus.HasValue)
            {
                q = q.Where(it => it.UserSignContractStatus == request.UserSignContractStatus.Value);
            }
            else
            {
                q = q.Where(it =>
                    it.UserSignContractStatus == EnumTaskUserSignContractStatus.Wait
                    || it.UserSignContractStatus == EnumTaskUserSignContractStatus.Effect
                    || it.UserSignContractStatus == EnumTaskUserSignContractStatus.Stop);
            }
            var s = q.Select(it => new GetPersonalUserElectronSignsQueryResultItem
            {
                Id = it.Id,
                EnterpriseName = it.Enterprise.EnterpriseName,
                UserSignContractStatus = it.UserSignContractStatus,
            });
            return await request.PageModel.GetPagedListAsync<GetPersonalUserElectronSignsQueryResult, GetPersonalUserElectronSignsQueryResultItem>(s, cancellationToken);
        }

        /// <summary>
        /// 查询个人用户签约详情
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public async Task<GetPersonalUserElectronSignQueryResult> Handle(GetPersonalUserElectronSignQuery request, CancellationToken cancellationToken)
        {
            var logier = JwtUtils.GetCurrentLogier();
            var q = rep.AsQueryable().AsNoTracking()
                .Where(it => it.UserId == logier.Id);
            if (request.Id.HasValue)
            {
                q = q.Where(it => it.Id == request.Id);
            }

            if (request.Code.IsNotNull())
            {
                q = q.Where(it => it.ContractTemplate.Code == request.Code);
            }

            var model = await q.GetDetail<EnterpriseEmployee, GetPersonalUserElectronSignQueryResult>();
            return model;
        }
    }
}